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September 2012 Doc ID 023566 Rev 1 1/66
UM1564User manual
STM32373C-EVAL evaluation board
IntroductionThe STM32373C-EVAL evaluation board is designed as a complete demonstration and development platform for STMicroelectronics’ ARM cortex-M4 core-based STM32F373VCT6 microcontroller. It features two I2Cs, three SPIs, three USARTs, one CAN, one CEC controller, one 12-bit ADC, three 16-bit sigma delta ADCs, three 12-bit DACs, internal 32-KByte SRAM and 256-KByte Flash, touch sensing, USB FS, and JTAG debugging support. This evaluation board can be used as a reference design for user application development but it is not considered as the final application.
The full range of hardware features on the board can help the user evaluate all peripherals (USB FS, USART, audio DAC, microphone ADC, color LCD, IrDA, LDR (light-dependent resistor), MicroSD card, HDMI CEC, ECG (electrocardiogram), pressure sensor, CAN, IR (infrared) transmitter and receiver, EEPROM, touch slider, temperature sensor, etc.) and develop their own applications. Extension headers make it possible to easily connect a daughterboard or wrapping board for a specific application.
An ST-LINK/V2 is integrated on the board as an embedded in-circuit debugger and programmer for the STM32 MCU.
Figure 1. STM32373C-EVAL evaluation board
Table 1. Applicable tools
Type Part number
Evaluation tools STM32373C-EVAL
www.st.com
Contents UM1564
2/66 Doc ID 023566 Rev 1
Contents
1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 Demonstration software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3 Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4 Delivery recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Hardware layout and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Development and debug support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.2 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.3 Power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.4 Clock sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.5 Reset source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.6 Boot option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.7 Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.8 USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.9 RS-232 and IrDA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.10 Touch sensing slider . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.11 MicroSD card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.12 RF EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.13 EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.14 CAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.15 HDMI CEC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.16 IR transmitter and IR receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.17 Electrocardiogram demonstration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.18 PT100 temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.19 Pressure sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2.20 Analog input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.21 Potentiometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.22 LDR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.23 Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.24 Display and input devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
UM1564 Contents
Doc ID 023566 Rev 1 3/66
3 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3.1 HDMI sink connector CN1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3.2 HDMI source connector CN2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3.3 RF EEPROM daughterboard connector CN3 . . . . . . . . . . . . . . . . . . . . . . 32
3.4 CAN D-type 9-pin male connector CN5 . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.5 MicroSD connector CN7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.6 Sigma Delta ADC connector CN9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.7 SAR ADC DAC connector CN10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.8 SAR ADC DAC connector CN11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.9 RS-232 connector CN12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.10 Daughterboard extension connectors CN13 and CN14 . . . . . . . . . . . . . . 36
3.11 ETM Trace debugging connector CN15 . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.12 User USB type B connector CN16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.13 JTAG/SWD debugging connector CN17 . . . . . . . . . . . . . . . . . . . . . . . . . . 41
3.14 Power connector CN18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
3.15 ST-LINK/V2 programming connector CN19 . . . . . . . . . . . . . . . . . . . . . . . 42
3.16 TFT LCD connector CN20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
3.17 Audio jack CN21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
3.18 ST-LINK/V2 USB type B connector CN22 . . . . . . . . . . . . . . . . . . . . . . . . 42
4 Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Appendix A STM32373C-EVAL pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Appendix B Mechanical dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
List of tables UM1564
4/66 Doc ID 023566 Rev 1
List of tables
Table 1. Applicable tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Table 2. Third-party toolchain support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Table 3. Power-related jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Table 4. Power mode related jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Table 5. Low voltage limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Table 6. 8-MHz crystal (X2-related solder bridge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Table 7. 32-KHz crystal (X1-related solder bridge). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Table 8. Boot-related switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Table 9. Boot0-related jumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Table 10. Audio-related jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Table 11. RS-232- and IrDA-related jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Table 12. Touch sensing slider-related solder bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Table 13. EEPROM-related jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Table 14. CAN-related jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Table 15. Jumpers of the ECG amplifier. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Table 16. Temperature sensor voltage range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Table 17. PT100-related jumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Table 18. Temperature sensor related solder bridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Table 19. LCD modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Table 20. HDMI sink connector CN1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Table 21. HDMI source connector CN2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32Table 22. RF EEPROM daughterboard connector CN3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32Table 23. CAN D-type 9-pin male connector CN5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32Table 24. MicroSD connector CN7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Table 25. Sigma Delta ADC connector CN9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Table 26. SAR ADC DAC connector CN10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Table 27. SAR ADC DAC connector CN11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Table 28. RS-232 connector CN12 with HW flow control and ISP support . . . . . . . . . . . . . . . . . . . . 35Table 29. Daughterboard extension connector CN13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36Table 30. Daughterboard extension connector CN14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Table 31. ETM Trace debugging connector CN15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Table 32. User USB type B connector CN16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Table 33. JTAG/SWD debugging connector CN17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Table 34. USB type B connector CN22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42Table 35. STM32373C-EVAL pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60Table 36. STM32373C mechanical dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64Table 37. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
UM1564 List of figures
Doc ID 023566 Rev 1 5/66
List of figures
Figure 1. STM32373C-EVAL evaluation board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Figure 2. Hardware block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Figure 3. STM32373C-EVAL evaluation board layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Figure 4. Temperature measurement schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Figure 5. Pressure measurement schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Figure 6. STM32373C-EVAL potentiometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Figure 7. STM32373C-EVAL LDR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Figure 8. HDMI sink connector CN1 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Figure 9. HDMI source connector CN2 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Figure 10. RF EEPROM daughterboard connector CN3 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . 32Figure 11. CAN D-type 9-pin male connector CN5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32Figure 12. MicroSD connector CN7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Figure 13. Sigma Delta ADC connector CN9 (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Figure 14. SAR ADC DAC connector CN10 (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Figure 15. SAR ADC DAC connector CN11 (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Figure 16. RS-232 connector CN12 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Figure 17. ETM Trace debugging connector CN15 (top view). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Figure 18. User USB type B connector CN16 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Figure 19. JTAG/SWD debugging connector CN17 (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Figure 20. Power supply connector CN18 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Figure 21. USB type B connector CN22 (front view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42Figure 22. Schematic diagram of STM32373C-EVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Figure 23. STM32373C-EVAL MCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45Figure 24. STM32373C-EVAL audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46Figure 25. STM32373C-EVAL peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Figure 26. STM32373C-EVAL power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48Figure 27. STM32373C-EVAL ST-LINK (JTAG only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Figure 28. STM32373C-EVAL JTAG and Trace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50Figure 29. STM32373C-EVAL RS-232 and IrDA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Figure 30. STM32373C-EVAL HDMI_CEC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52Figure 31. STM32373C-EVAL LCD and SD card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53Figure 32. STM32373C-EVAL CAN and IR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54Figure 33. STM32373C-EVAL Touch slider. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55Figure 34. STM32373C-EVAL I2C peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56Figure 35. STM32373C-EVAL PT100 temperature sensor and connectors . . . . . . . . . . . . . . . . . . . . 57Figure 36. STM32373C-EVAL ECG and pressure sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58Figure 37. MB989 LCD daughter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59Figure 38. STM32373C mechanical dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Overview UM1564
6/66 Doc ID 023566 Rev 1
1 Overview
1.1 Features● Four 5-V power supply options:
– Power jack
– ST-LINK/V2 USB connector
– User USB connector
– Daughterboard
● I2S audio DAC and stereo audio jack
● 2-Gbyte or more SPI interface MicroSD card
● I2C compatible serial interface temperature sensor, EEPROM, and RF EEPROM (dual interface EEPROM)
● RS-232 communication
● IrDA transceiver
● JTAG/SWD and ETM trace debug support, ST-LINK/V2 embedded
● 240x320 TFT color LCD connected to SPI interface
● Joystick with 4-directional control and selector
● Reset, wakeup or tamper and key button
● 4 color user LEDs and 2 LEDs as MCU power range indicators
● ECG, pressure sensor, and PT100 temperature sensor connected to 16-bit sigma delta ADC of the STM32F373VCT6
● Extension connectors for daughterboard or wrapping board
● Microcontroller voltage choice: 3.3 V or adjustable from 2.0 V to 3.6 V
● USB FS connector
● Touch slider
● RTC with backup battery
● CAN2.0A/B compliant connection
● Light-dependent resistor (LDR)
● Two HDMI connectors with DDC (display data channel) and CEC
● IR transmitter and receiver
● Two ADC and DAC input and output signal connectors and one sigma delta ADC input signal connector
● Potentiometer
1.2 Demonstration softwareDemonstration software is preloaded on the board’s Flash memory for easy demonstration of the device peripherals in standalone mode. For more information and to download the latest version available, please refer to the STM32373C-EVAL demonstration software available on www.st.com.
UM1564 Overview
Doc ID 023566 Rev 1 7/66
1.3 Order codeTo order the STM32F373VCT6 evaluation board, use the order code STM32373C-EVAL.
1.4 Delivery recommendationsSome verification of the board is needed before using it for the first time to make sure that nothing was damaged during shipment and that no components are unplugged or lost.
When the board is extracted from its plastic bag, please check that no component remains in the bag.
The main components to verify are:
1. The 8-MHz crystal (X2) which may have been removed by a shock from its socket.
2. The MicroSD card which may have been ejected from the connector CN7 (right side of the board).
3. The dual-interface EEPROM board (ANT7-M24LR-A) which may have been unplugged from the connector CN3 (top left corner of the board).
For all information concerning the version of the MCU used on the board, its specification and possible related limitations, please visit www.st.com to download the relevant data sheet and erratasheet.
Caution: There is an explosion risk if the battery is replaced by an incorrect one. Make sure to dispose of used batteries according to the instructions.
Hardware layout and configuration UM1564
8/66 Doc ID 023566 Rev 1
2 Hardware layout and configuration
The STM32373C-EVAL evaluation board is designed around the STM32F373VCT6 (100-pin LQFP package). The hardware block diagram, Figure 2, illustrates the connection between the STM32F373VCT6 and the peripherals (color LCD, touch slider, USB FS connector, temperature sensor, USART, IrDA, audio, EEPROM, RF EEPROM, MicroSD card, and embedded ST-LINK). Figure 3 illustrates how to locate these features on the actual evaluation board. Features described in Section 2.1 to Section 2.24 below are shown in Figure 3.
UM1564 Hardware layout and configuration
Doc ID 023566 Rev 1 9/66
Figure 2. Hardware block diagram
MS30560V1
Voltage translator
Joystick
LEDs
Wakeup, tamper. button
GPIO USART
RS232 transceiver
IrDA transceiver
USART2 connector
Embedded ST-LINK/V2
JTAG and trace
connector
USB type B connector
JTAG
Voltage translator
SPI3
Micro SD card
Dot matrix LCD
HDMI connectorCEC
EEPROM
RF EEPROM connector
Temperature sensor
Speaker amplifier
I2C
I2S
2.0 V to 3.6 V adjustable regulator
3.3 V regulator
Extension connector for
GPIOsDAC
ADC Amplifier Microphone
ComparatorPhoto-R
Touch slider
2-pin connector
USB connector
CAN driver and
connector
IR transmitter
IR receiver
TS controller
DAC/ADC
USB FS
CAN
IRTIM PWM
STM32F373VCT6
Potentiometer
GpAMP2
ADC
PT100 temp. sensor SD ADC
Pressure sensor and
amplifierSD ADC
ECG sensor and amplifier SD ADC
and
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Figure 3. STM32373C-EVAL evaluation board layout
S1Touch Slider
CN5CAN
CN3RF EEPROM
daughter board connector
TS1 & TS2ECG Probe
R63LDR
CN17 JTAG/SWD
CN22 ST-LINK/V2 USB CN21
Audio jack
LD7 ST-LINK/V2COM LED
B2Tamper Button
U34 Joystick
B1Reset Key 4 colors
LEDS
VDD range LEDs
RV 3Potentiometer
RV2VDD_Adjustment
CN18Power Jack
CN7MicroSD card
U12IrDA
U9STM32F373VCT6
CN13,CN14Extension header
CN15ETM TRACE
CN12USART2
CN1HDMI SINK
CN2HDMI SOURCE
U5Pressure Sensor
U22IR transmitter
LD10IR LED
U28Microphone
B3 Key Button
CN16 USB FS
MS30561V1
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2.1 Development and debug supportVersion 2 of the ST-LINK (ST-LINK/V2) is embedded on the board. This tool allows onboard program loading and debugging of the STM32F373VCT6 using the JTAG or SWD interface. Third-party debug tools are also supported using the JTAG/SWD connector (CN17) or the ETM trace connector (CN15).
A specific driver needs to be installed on your PC for communication with the embedded ST-LINK/V2. The install shield, called ST-LINK_V2_USBdriver.exe, is available from the ST website. To download and install this driver, please refer to the software and development tools page of the STM32F family on www.st.com.
Third-party toolchains, Atollic TrueSTUDIO, KEIL ARM-MDK, IAR EWARM, and Tasking VX-Toolset support ST-LINK/V2 according to Table 2.
Connect the embedded ST-LINK/V2 to the PC via a standard USB cable from connector CN22. The bi-color LED LD7 (COM in Figure 3) indicates the status of the communication as follows:
● Slow blinking red/off: at power-on before USB initialization
● Fast blinking red/off: after the first correct communication between the PC and STLink/V2 (enumeration).
● Red LED on: when initialization between the PC and ST-LINK/V2 is successfully finished.
● Green LED on: after successful target communication initialization
● Blinking red/green: during communication with target
● Red on: communication finished and OK
● Orange on: communication failure
Note: It is possible to power the board via CN22 (embedded ST-LINK/V2 USB connector) even if an external tool is connected to CN15 (ETM trace connector) or CN17 (external JTAG and SWD connector).
Remove R29, R73, and R89 when using the ETM 4-bit function. In this situation, the touch slider and joystick do not work.
Table 2. Third-party toolchain support
Toolchain Version
Atollic TrueSTUDIO 2.1
Keil MDK-ARM 4.20
IAR EWARM 6.20
Altium TASKING VX-Toolset 4.0.1
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2.2 Power supplySTM32373C-EVAL evaluation board is designed to be powered by a 5 V DC power supply and is protected by PolyZen U26 from damage caused by overvoltage and overcurrent fault conditions. It is possible to configure the evaluation board to use any of following four power supply sources:
● 5-V DC power adapter connected to CN18, the power jack on the board (see Power Supply Unit (PSU) in Figure 3). The external power supply is not provided with the board.
● 5-V DC power with 500 mA limitation from CN22, the type-B USB connector of ST-LINK/V2 (see STlk 5-V power source in Figure 3).
● 5-V DC power with 500 mA limitation from CN16, the type-B USB connector (see U5V 5-V power source in Figure 3).
● 5-V DC power from CN13 and CN14, the extension connector for the daughterboard (see D5V for daughterboard in Figure 3).
The power supply is configured by setting the related jumpers JP10, JP11, JP12, and JP13 as described in Table 3 below.
Table 3. Power-related jumpers
Jumper Description Jumper setting
JP10(selects one of the four possible power supply resources)
For power supply from the power supply jack (CN18) to the STM32373C-EVAL only, JP10 is set as shown to the right:
For power supply from the USB connector of ST-LINK/V2 (CN22) to STM32373C-EVAL only, JP10 is set as shown to the right:
For power supply from the USB connector (CN16) to STM32373C-EVAL only, JP10 is set as shown to the right:
For power supply from the daughterboard connectors (CN13 and CN14) to STM32373C-EVAL only, JP10 is set as shown to the right:
For power supply from the power supply jack (CN18) to both STM32373C -EVAL and daughterboard connected on CN13 & CN14, JP10 is set as shown to the right:Note: the daughterboard must not have its own power supply connected.
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Note: VDD is adjustable from 2.0 V to 3.6 V. However, to take component tolerance into account and to guarantee that VDD does not exceed the chip range specification, VDD is ideally designed to be adjusted from 2.1 V to 3.5 V on the board.
JP17 is connected with the VDDA power supply and the SD_VREF+ pin of the microcontroller. The default setting is closed. When the SD_VREF+ pin needs an extended reference level, please open JP17 and connect the extended reference to pin 1 (the top pin of JP17).
LED LD8 is lit (red) when the STM32373C-EVAL evaluation board is powered by a 5-V DC power supply. LED LD6 is lit (red) when the microcontroller is powered by VDD < 2.4 V (low voltage). LED LD5 is lit (green) when the microcontroller is powered by VDD > 2.4 V
JP11
Vbat is connected to a battery when JP11 is set as shown to the right:
Vbat is connected to the VDD power when JP11 is set as shown to the right:This is the default setting.
JP12
VDD is connected to a fixed 3.3-V DC power supply when JP12 is set as shown to the right:
This is the default setting.
VDD is connected to an adjustable DC power supply from 2.0 V to 3.6 V when JP12 is set as shown to the right:
JP13
VDDA power is connected to VDD when JP13 is set as shown to the right:
This is the default setting.
VDDA power is connected to a fixed 3.3-V DC power supply when JP13 is set as shown to the right:
Table 3. Power-related jumpers (continued)
Jumper Description Jumper setting
321
321
321
321
321
321
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2.3 Power modesA total of three power modes are supported on the board and can be configured by setting the related jumpers JP12 and JP13 as described below in Table 4. The power modes are as follows:
● Power mode 1: VDD and VDDA are connected together and powered by a fixed 3.3-V DC power supply.
● Power mode 2: VDD and VDDA are connected together and powered by an adjustable voltage that ranges from 2.0 V to 3.6 V.
● Power mode 3: VDD is powered by an adjustable voltage that ranges from 2.0 V to 3.6 V while VDDA is powered by a fixed 3.3-V DC power supply.
Table 5 shows the low voltage limitations that might apply depending on the characteristics of some peripheral components. Components might work incorrectly when the power level is lower than the limitation.
Table 4. Power mode related jumpers
Power modePower mode configuration Microcontroller IDD
measurement(1)
1. To measure the IDD of the microcontroller, use a current meter mounted on JP15 (which must be open). JP16 must also be open to disconnect VDDA from any analog power (VDD_ANA) connected to the analog circuit.
JP12 JP13
Power mode 1
OK
Not allowed
Power mode 2 OK
Power mode 3 Not allowed
Table 5. Low voltage limitations
Peripheral Component IO nameLow voltage
limitation
USB CN16 USB 3 V
MicroSD card CN7 SPI3 2.7 V
CAN CN5 CAN 3 V
321 321
321 321
321 321
321 321
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Note: The recommended AC220 V to DC5 V power adapter is PSU-5V2A. It is not included with the board but can be ordered from ST as a separate item. You can also use another equivalent 5 V power adapter (polarity compatible with CN18) to power the STM32373C-EVAL board via the CN18 power jack on the board. To order the recommended power supply, use order code PSU-5V2A.
2.4 Clock sourcesTwo clock sources are available on the STM32373C-EVAL evaluation board for use with the STM32F373VCT6 microcontroller and embedded real-time clock (RTC). They are:
● 8-MHz crystal (X2) with socket clock source for the STM32F373VCT6 microcontroller. It can be removed from the socket when an internal RC clock is used (see Table 6).
● 32-KHz crystal (X1) for use with an embedded RTC (see Table 7).
Table 6. 8-MHz crystal (X2-related solder bridge)
Solder bridge Description
SB23
When SB23 is open, PF0 is connected to the 8-MHz crystal oscillator.
This is the default setting.
When SB23 is closed, PF0 is connected to the extension connector CN14. In this case, C18 and the X2 pin must be removed to avoid disturbance due to the 8-Mhz quartz.
SB24
When SB24 is open, PF1 is connected to the 8-MHz crystal oscillator.
This is the default setting.
When SB24 is closed, PF1 is connected to the extension connector CN14. In this case R38 must be removed to avoid disturbance due to the 8-Mhz quartz.
Table 7. 32-KHz crystal (X1-related solder bridge)
Solder bridge Description
SB25
When SB25 is open, PC14 is connected to the 32-KHz crystal oscillator.
This is the default setting.
When SB25 is closed, PC14 is connected to the extension connector CN13. In this case, R36 must be removed to avoid disturbance due to the 32-Khz quartz.
SB26
When SB26 is open, PC15 is connected to 32-KHz crystal.
This is the default setting.
When SB26 is closed, PC15 is connected to the extension connector CN13. In this case, R37 must be removed to avoid disturbance due to the 32-Khz quartz.
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2.5 Reset sourceThe reset signal of the STM32373C-EVAL evaluation board is “low active” and the reset sources (see Figure 3) include:
● Reset button B1
● Debugging tools from JTAG/SWD connector CN17 and ETM trace connector CN15
● daughterboard from CN14
● Embedded ST-LINK/V2
● RS-232 connector CN12 for ISP (in-situ programming)
Note: See Section 2.9: RS-232 and IrDA to change jumper JP7 when performing a reset. This is handled by pin 8 of the RS-232 connector CN12 (clear to send (CTS) signal).
2.6 Boot optionThe STM32373C-EVAL evaluation board is able to boot from:
● Embedded user Flash
● System memory with boot loader for ISP
● Embedded SRAM for debugging
The boot option is configured by setting switch SW1 (BOOT0) and the User Option Bytes bit12 (BOOT1) in the small information block (SIF). BOOT0 can also be configured via the RS-232 connector CN12.
Table 8. Boot-related switches
Boot sourceBit12 in User Option Bytes
Switchconfiguration
STM32373C-EVAL boot from User Flash when SW1 and bit12 in the User Option Bytes are set as shown to the right.This is the default setting.
X
STM32373C-EVAL boot from Embedded SRAM when SW1 and bit12 in the User Option Bytes are set as shown to the right.
0
STM32373C-EVAL boot from System Memory when SW1 and bit12 in the User Option Bytes are set as shown to the right.
1
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2.7 AudioThe STM32373C-EVAL evaluation board supports stereo audio playback by an audio DAC CS43L22 connected to the I2S port and one channel of the STM32F373VCT6 DAC. The microphone is connected to the ADC input of STM32F373VCT6 through a microphone amplifier.
I2C communication depends on the settings of jumpers JP4 and JP5:
Note: The I2C address of CS43L22 is 0b1001010.
The audio reset is connected with PD11 which is powered by the VDDA domain. When the voltage of VDDA is not the same as the voltage of VDD (see Power mode 3 in Section 2.3), the signal voltages are translated by divider resistance, R79 and R103, to avoid harming the Audio Codec Chip U19.
Table 9. Boot0-related jumper
Jumper Description
JP9
When JP9 is closed, the Bootloader_BOOT0 is managed by pin 6 of connector CN12 (RS-232 DSR signal). This configuration is used for boot loader application only.
This is the default setting: it is not fitted.
Table 10. Audio-related jumpers
Jumper Description Jumper setting
JP4
PA9 is connected to the I2C2_SCL_5V signal on the audio DAC, temperature sensor, RF EEPROM, and HDMI source connector when JP4 is set as shown to the right:
This is the default setting.
PA9 is connected to the I2C2_F_SCL signal on the EEPROM when JP4 is set as shown to the right:
JP5
PA10 is connected to the I2C2_SDA_5V signal on the audio DAC, temperature sensor, RF EEPROM, and HDMI source connector when JP5 is set as shown to the right:
This is the default setting.
PA10 is connected to the I2C2_F_SDA signal on the EEPROM when JP5 is set as shown to the right:
321
321
321
321
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2.8 USBSTM32373C-EVAL evaluation board supports USB2.0 compliant, full-speed communication via a USB type B connector (CN16). The evaluation board can be powered by this USB connection at 5 V DC with 500 mA current limitation.
USB disconnection simulation can be implemented by controlling an external 1.5 KΩ pull-up resistor on the USB+ line. The pull-up function can be enabled by PC5.
The USB operates correctly when VDD > 3 V.
2.9 RS-232 and IrDARS-232 (with hardware flow control clear to send (CTS) and request to send (RTS)) and IrDA communication are supported by:
● D-type 9-pin RS-232 connector (CN12)
● IrDA transceiver (U12)
They are connected to USART2 of the STM32F373VCT6 on the STM32373C-EVAL evaluation board. The Bootloader_RESET signal (which is shared with the CTS signal) and the Bootloader_BOOT0 signal which is shared with the demand signal repository (DSR) signal) are added on the RS-232 connector, CN12, for ISP support.
Table 11. RS-232- and IrDA-related jumpers
Jumper Description Jumper setting
JP6
USART2_RX is connected to the RS-232 transceiver and RS-232 communication is enabled when JP6 is set as shown to the right:
This is the default setting.
USART2_RX is connected to the IrDA transceiver and IrDA communication is enabled when JP6 is set as shown to the right:
JP7
USART2_CTS is connected to the RS-232 transceiver when JP7 is set as shown to the right:
This is the default setting.
Bootloader_RESET is connected to the RS-232 transceiver when JP7 is set as shown to the right:
321
321
321
321
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2.10 Touch sensing sliderSTM32373C-EVAL evaluation board supports a touch sensing slider based on either resistor-capacitor (RC) charging or charge transfer technology. The charge transfer technology is enabled by default assembly.
Note: The touch slider is only fully functional when the STM32373C-EVAL is powered on Power mode 1 (both VDD and VDDA are connected to a fixed 3.3 V power supply). When the STM32373C-EVAL is powered on Power mode 2, it may be necessary to adjust the capacitor value of C123 and the firmware so they are adapted to a voltage range of 2.0 V to 3.6 V of VDD. The touch slider is not functional when the STM32373C-EVAL is powered on Power mode 3 because some IOs are also powered by the VDDA domain.
Table 12. Touch sensing slider-related solder bridges
Solder bridge Description
SB8
When SB8 is open, PD15 is connected to the sampling capacitor. This is the default setting.
When SB8 is closed, PD15 is connected to the extension connector CN14. In this case, C7 must be removed to avoid disturbance due to the capacitor.
SB9
When SB9 is open, PD14 is connected to the touch slider.
This is the default setting.
When SB9 is closed, PD14 is connected to the extension connector CN14. In this case, R11 must be removed to avoid disturbance due to the touch slider
SB10
When SB10 is open, PD13 is connected to the touch slider.
This is the default setting.
When SB10 is closed, PD13 is connected to the extension connector CN14. In this case, R12 must be removed to avoid disturbance due to the touch slider
SB11
When SB11 is open, PD12 is connected to the touch slider.
This is the default setting.
When SB11 is closed, PD12 is connected to the extension connector CN14. In this case, R13 must be removed to avoid disturbance due to the touch slider
R93
When R93 is un-mounted, PE4 is connected to the touch slider. This is the default setting.
When R93 is mounted, PE4 is connected to the extension connector CN13. In this case, R31 must be removed to avoid disturbance due to the shield.
R95
When R95 is un-mounted, PE5 is connected to the slider.
This is the default setting.
When R95 is mounted, PE5 is connected to the extension connector CN13. In this case, R82 must be removed to avoid disturbance due to the capacitor.
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2.11 MicroSD cardThe 2-Gbyte (or more) MicroSD card connected to the SPI3 port (which is shared with the color LCD) of the STM32F373VCT6 is available on the evaluation board. It can be enabled by the chip select signal (PE2). This signal should be set as an open-drain output pin in the STM32F373VCT6. MicroSD card detection is managed by the standard IO port PE3.
The MicroSD card operates correctly when VDD > 2.7 V.
2.12 RF EEPROMThe RF EEPROM daughterboard, ANT7-M24LR-A, is mounted on CN3 of the STM32F373VCT6 via the I2C2 bus (which is shared with the temperature sensor U14, audio codec U19, and DDC on the HDMI_Source connector CN2). The RF EEPROM can be accessed by the microcontroller via the I2C2 bus or by radio frequency (RF) using a 13.56 MHz reader (for example, CR95HF).
The I2C address of the RF EEPROM daughterboard is 0b1010000.
I2C2 communication depends on the settings of jumper JP4 and JP5 as shown in Table 10: Audio-related jumpers.
2.13 EEPROMTo fit Fast mode requirements, a 1-Mbit EEPROM, M24M01-HR, is directly connected to the I2C2 bus of the STM32F373VCT6 by setting jumper JP4 and JP5 as shown in Table 10: Audio-related jumpers.
Table 13. EEPROM-related jumpers
Jumper Description
JP14When JP14 is closed, the EEPROM is in Write protection mode.This is the default setting: it is not fitted.
JP4, JP5 Refer to Table 10: Audio-related jumpers.
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2.14 CANThe STM32373C-EVAL evaluation board supports one channel of CAN2.0A/B complaint CAN bus communication based on a 3.3-V CAN transceiver. High-speed mode, Standby mode, and Slope control mode are available and can be selected by setting JP3.
CAN operates correctly when VDD > 3 V.
2.15 HDMI CECTwo HDMI connectors, CN1 and CN2, are available on the STM32373C-EVAL evaluation board.
● Connector CN1 is a HDMI sink connector with:
– DDC connected to I2C1 of the STM32F373VCT6
– HPD controlled by IO PE0 through transistor T1
– CEC connected to PB8 through transistor T2
● Connector CN2 is an HDMI source connector with:
– DDC connected to I2C2 (and shared with the temperature sensor, RF EEPROM, and audio codec) of the STM32F373VCT6 by setting jumper JP4 and JP5 as shown in Table 10: Audio-related jumpers.
– HPD controlled by IO PD7
– CEC connected to PB8 through transistor T2
– HDMI 5-V powered by power switch U1
The signals TDMS D+[0:2], TDMS_CLK+, TDMS D-[0:2], and TDMS_CLK- are connected together on these two HDMI connectors.
CEC injector mode can be enabled (for debugging purposes only) as follows:
● Remove resistors R120, R172, R173, R174, R175, R213, and R221.
● Close solder bridges SB1, SB2, SB3, and SB4.
Table 14. CAN-related jumpers
Jumper Description and jumper setting
JP3
The CAN transceiver operates in Standby mode when JP3 is set as shown to the right:
The CAN transceiver operates in High-speed mode when JP3 is set as shown to the right: This is the default setting.
The CAN transceiver operates in Slope control mode when JP3 is open.
JP2When JP2 is fitted, the CAN terminal resistor is enabled.
Default setting: not fitted.
321
321
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Note: The I/O PE0 must be set in open-drain output mode by firmware when working as an HPD signal control on the HDMI sink connector CN1.
2.16 IR transmitter and IR receiverThe IR receiver, TSOP34836, is connected to PB5 of the STM32F373VCT6 and the IR transmitter is driven by PB9 through transistors T6 and T7 on the evaluation board.
The IR transmitter may be driven directly by PB9 when SB28 is closed and R240 is removed.
2.17 Electrocardiogram demonstrationThe electrocardiogram (ECG) demonstration is implemented on the STM32373C-EVAL evaluation board. There are two ECG electrodes, TS1 and TS2, on the board for fingers from the right and left hands of the human body. The first stage of the ECG amplifier circuit is an instrument amplifier INA333 (U2). The gain is set to 5. The gain of the second amplifier stage (U3A) is set to 10 or 40. The total gain of the circuit outside the microcontroller is set to 50 or 200. The output of the amplifier is connected to the sigma delta ADC in the STM32F373VCT6 through PE12.
Jumper JP1 can change the second stage amplifier gain (see Table 15).
A low-pass filter is available on the evaluation board but, by default, it is not used. This filter is made of a second order Sallen-Key Low-pass Filter (U3C) having unitary gain and 9 Hz cut-off frequency. It can be used in noisy environments to improve 50 Hz or 60 Hz noise rejection.
This filter is enabled by removing R14 and soldering 0 Ω on the R183 footprint.
Caution is needed for ECG detection and heartbeat measurement. The recommendations are:
1. Humid air and fingers
2. Large area in contact with the electrodes
3. Relaxed body with no movement
4. Digital (and or) analog filtering to improve 50 Hz or 60 Hz noise rejection
5. Third electrode usage connected to GND
6. Evaluation board preferably powered by USB
7. Body must be electrically isolated from earth
Table 15. Jumpers of the ECG amplifier
Jumper Description
JP1When JP1 is closed, the second amplifier gain is changed from 10 to 40.
Default setting: fitted.
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2.18 PT100 temperature sensorThere is a current source circuit on the STM32373C-EVAL evaluation board to provide a fixed 1 mA current (when VDD = 3.3 V) to the platinum probe PT100 (R30). The R30 voltage level is directly applied to the sigma delta ADC of the STM32F373VCT6, through PE7, to measure the temperature value on PT100.
For temperatures lower than 100 °C, the resistor value is given by Equation 1.
Equation 1
T is the temperature in degrees Celsius.
The principle of the PT100 temperature sensor measurement is given in Figure 4.
Figure 4. Temperature measurement schematic diagram
The operational amplifier, A1, and the resistors R1 to R5 form a differential amplifier with a differential gain (GA1).
Due to the resistor values chosen, GA1 is equal to 1. This is known because the resistor bridge, R1 and R2, connected to VDD is equivalent to the VDD/2 generator where R1/2 = R internal resistor.
The voltage on Rref is given in Equation 2 to Equation 5.
RPT100 100 0.385 T×+=
MS30569V1
R3 = R
A1
A2
R4 = R
TSV631A
TSV631A
R5 = R
+
+
-
-
RPT100 VADC
ADC IN
VDD
R1 = 2R
R2 = 2R
VDD
R1 = 2R
R2 = 2R
R refR ref = VDD/2
VRref = VDD/2
RVRref
=
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Equation 2
Equation 3
Equation 4
Equation 5
The voltage on the ADC input is given in Equation 6.
Equation 6
The measured PT100 value given by the ADC is shown in Equation 7.
Equation 7
Where:
● N is the value returned by the ADC corresponding to the voltage measured.
● Vref_ADC is the ADC reference voltage (SD_VREF+ in Figure 26).
If Vref_ADC = VDD, the RPT100 value becomes as shown in Equation 8.
Equation 8
Conclusion
When the JP17 jumper is closed and the external reference voltage selected (Vref_ADC) equals VDD, the temperature measurement becomes VDD independent.
Table 16 shows the voltage range corresponding to different temperatures for the ADC IN of the STM32F373VCT6 where gain = 16.
Table 16. Temperature sensor voltage range
VDD = 3.3 V Temperature (°C) Resistance (Ω) Voltage (mV) Vin ADC (V)
Rref = 1.8 KΩ
0 100 100 1.6
20 107.7 107.7 1.7
50 119.2 119.2 1.9
VOUTA1 VREF VOUTA2 (since GA1 1 )=+=
VOUTA2 VPT100=
VREF VOUTA1 VPT100–=
VRref Vref VDD 2⁄= =
VADC VPT100 VRref RPT100 Rref RPT100 VDD 2 Rref×( )⁄×=⁄×= =
RPT100 Vref_ADC N 216 1–( )⁄×[ ] 2 Rref VDD( )⁄××=
RPT100 N 216 1–( )⁄[ ] 2 Rref××=
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Note: A 100 Ω 0.1% resistor, R121, is used to calibrate PT100 by setting JP18.
Note: The temperature result measured from PT100 is slightly higher than ambient temperature due to board heat.
Table 17. PT100-related jumper
Jumper Description and jumper setting
JP18
The 100-ohm 0.1% resistor is connected for calibration when JP18 is set as shown to the right:
PT100 resistor is connected to measure temperature when JP18 is set as shown to the right:
This is the default setting.
321
321
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2.19 Pressure sensorAn absolute pressure sensor with 1000 HP, full scale MPX2102, and an analog front end is implemented on the STM32373C-EVAL board. The output differential pair is connected to the sigma delta ADC in the STM32F373VCT6 via PE8 (P) and PE9 (N).
The principle of the pressure measurement is given in Figure 5.
Figure 5. Pressure measurement schematic diagram
The differential voltage, at output, of the amplifier is given in Equation 9.
Equation 9
where:
● G represents the operational amplifier differential gain when R3 is infinite.
● G = 2 * R2/R1 + 1
MS30570V1
R3
+
-
VDD
VOUT+
R2
R1
R2
+
-
R3
V OUT-
VIN+
VIN-
VDD
R4
VTEMP
MPX2102
VOUT+ VOUT-– VIN+ VIN-–( ) G R2 R3⁄+( ) VDD R2 R3⁄×–×=
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The operational amplifier differential input voltage provided by the pressure sensor is given in Equation 10.
Equation 10
Where:
● Pm = the pressure measured
● K = sensitivity of the sensor (40 mV for VDD = 10 V and 1000 HPa)
The ADC output is related to the differential voltage by Equation 11.
Equation 11
where:
● N is the value returned by the ADC corresponding to the pressure measured
● Vref_ADC is the ADC reference voltage (SD_VREF+ in Figure 26)
● GADC is the ADC digital gain
So, if Vref_ADC = VDD Equation 11 becomes Equation 12.
Equation 12
Conclusion
1. When the ADC external reference voltage is selected and JP17 jumper is closed, Vref_ADC = VDD so the pressure measurement becomes VDD independent.
2. The R2/R3 term in Equation 11 and Equation 12 allows the offset voltage corresponding to atmospheric pressure to be partially reduced. Consequently, the digital gain can be increased to improve sensitivity.
Note: VTEMP may be used to compensate the temperature sensor drift by measuring the sensor current change with temperature.
VIN+ VIN-– Pm K VDD××=
VADC Vref_ADC N 216 1–( )⁄× Pm K× VDD× G R2 R3⁄+( ) VDD R2 R3⁄×–×[ ] GADC×= =
N 216 1–( )⁄ Pm K× G R2 R3⁄+( ) R2 R3⁄–×[ ] GADC×=
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2.20 Analog inputThree 2-pin connectors, CN9, CN10 and CN11, are connected to STM32F373VCT6 as external analog inputs or DAC outputs.
CN9 connected to Sigma Delta ADC through PE11: a low-pass filter can be implemented for the 2-pin connector by replacing R212 and C118 for ADC input with the right values of the resistor and capacitor as required by end user’s application.
CN10 connected to ADC SAR input and DAC output through PA5: a low-pass filter can be implemented for the 2-pin connector by replacing R42 and C21 for ADC input or replacing R40 and C21 for DAC output with the right values of the resistor and capacitor as required by end user’s application.
CN11 connected to ADC SAR input and DAC output through PA4: a low-pass filter can be implemented for the 2-pin connector by replacing R45 and C26 for ADC input or replacing R43 and C26 for DAC output with the right values of the resistor and capacitor as required by end user’s application.
2.21 PotentiometerA 10K ohm potentiometer RV3 is connected to comparator 2 through PA3 and ADC through PB1 (default connection), as shown in Figure 6.
Figure 6. STM32373C-EVAL potentiometer
MS30943V1
+
-
OUT
GPCOMP2_IN+
GPCOMP2_IN-
Band gap 1.2 V
GP comparator
PB1
RV3 PA30
0
NC
ADC_SD1_AIN3P-AIN2M
ADC_SAR_AIN9
GND
VDDA
UM1564 Hardware layout and configuration
Doc ID 023566 Rev 1 29/66
2.22 LDRA light dependent resistor (LDR) is connected to ADC or comparator 1 through PA1, as shown in Figure 7.
Figure 7. STM32373C-EVAL LDR
2.23 Temperature sensorTemperature sensor STLM75M2E is connected to the I2C2 bus of STM32F373VCT6 when jumpers JP4 and JP5 are set as shown in Table 10. It shares the same I2C2 bus with RF EEPROM, Audio codec and DDC on the HDMI_Source connector.
I2C address of temperature sensor is 0b100100(A0). A0 can be 0 or 1 depending on the setting of SB27.
Note: The temperature result measured from STLM75M2E is slightly higher than ambient temperature due to board heat.
MS30944V1
+
-
OUT
GPCOMP2_IN+
GPCOMP2_IN-
Band gap 1.2 V
GP comparator
LDR_OUT PA10
NC
ADC_SAR_IN1
GND
VDDA
LDR
Table 18. Temperature sensor related solder bridge
Solder bridge Description
SB27I2C address A0 is 0 when SB27 is open (default setting).
I2C address A0 is 1 when SB27 is closed
Hardware layout and configuration UM1564
30/66 Doc ID 023566 Rev 1
2.24 Display and input devicesThe 240x320 TFT color LCD connected to port SPI3 of STM32F373VCT6 (shared with the MicroSD card) and four general-purpose color LEDs (LD1, LD2, LD3, LD4) are available as display devices. LED LD9 is connected with PA7 to show the status of comparator 2 when debugging. The 4-direction joystick (U34) with selection wakeup button (B2) and key button (B3) are available as input devices.
The LCD can be enabled by chip select signal PD2 and this signal should be set as open-drain output pin in STM32F373VCT6. All joystick signals should be set as pull-down input pin in STM32F373VCT6.
Table 19. LCD modules
TFT LCD CN20
Pin on CN20 Description Pin connection
1 CS PD2
2 SCL PC10
3 SDI PC12
4 RS -
5 WR -
6 RD -
7 SDO PC11
8 RESET RESET#
9 VDD 3.3V
10 VCI 3.3V
11 GND GND
12 GND GND
13 BL_VDD 3.3V
14 BL_Control 3.3V
15 BL_GND GND
16 BL_GND GND
UM1564 Connectors
Doc ID 023566 Rev 1 31/66
3 Connectors
3.1 HDMI sink connector CN1
Figure 8. HDMI sink connector CN1 (front view)
3.2 HDMI source connector CN2
Figure 9. HDMI source connector CN2 (front view)
Table 20. HDMI sink connector CN1
Pin number Description Pin number Description
1, 3, 4, 6, 7, 9, 10, 12
TMDS differential signal pair connected to CN2
15 I2C1_SCL (PB6)
2, 5, 8, 11, 17 GND 16 I2C1_SDA (PB7)
13 CEC (PB8 through NMOS) 18 HDMI_5V_Sink
14 NC 19 HPD (PE0 through transistor)
Connectors UM1564
32/66 Doc ID 023566 Rev 1
3.3 RF EEPROM daughterboard connector CN3
Figure 10. RF EEPROM daughterboard connector CN3 (front view)
3.4 CAN D-type 9-pin male connector CN5
Figure 11. CAN D-type 9-pin male connector CN5
Table 21. HDMI source connector CN2
Pin number Description Pin number Description
1, 3, 4, 6, 7, 9, 10, 12
TMDS differential signal pair connected to CN1
15 I2C2_SCL (PA9)
2, 5, 8, 11, 17 GND 16 I2C2_SDA (PA10)
13 CEC (PB8 through NMOS) 18HDMI_5V_Source from power switch U1
14 NC 19 HPD (PD7)
Table 22. RF EEPROM daughterboard connector CN3
Pin number Description Pin number Description
1 SDA (PA10) 3 +5 V
2 SCL (PA9) 4 GND
Table 23. CAN D-type 9-pin male connector CN5
Pin number Description Pin number Description
1, 4, 8, 9 NC 7 CANH
2 CANL 3, 5, 6 GND
6 7 8 9
1 2 3 4 5
Front view
MS19140V2
UM1564 Connectors
Doc ID 023566 Rev 1 33/66
3.5 MicroSD connector CN7
Figure 12. MicroSD connector CN7
3.6 Sigma Delta ADC connector CN9
Figure 13. Sigma Delta ADC connector CN9 (top view)
Table 24. MicroSD connector CN7
Pin number Description Pin number Description
1 NC 6 Vss/GND
2 MicroSDcard_CS (PE2) 7 MicroSDcard_DOUT (PC11)
3 MicroSDcard_DIN (PC12) 8 NC
4 +3V3 9 GND
5 MicroSDcard_CLK (PC10) 10 MicroSDcard_detect (PE3)
Table 25. Sigma Delta ADC connector CN9
Pin number Description Pin number Description
1 AGND 2 Sigma Delta ADC input PE11
MS30945V1
1
2
Connectors UM1564
34/66 Doc ID 023566 Rev 1
3.7 SAR ADC DAC connector CN10
Figure 14. SAR ADC DAC connector CN10 (top view)
3.8 SAR ADC DAC connector CN11
Figure 15. SAR ADC DAC connector CN11 (top view)
Table 26. SAR ADC DAC connector CN10
Pin number Description Pin number Description
1 AGND 2 ADC-DAC input & output PA5
MS30945V1
1
2
Table 27. SAR ADC DAC connector CN11
Pin number Description Pin number Description
1 GND 2 ADC-DAC input & output PA4
MS30945V1
1
2
UM1564 Connectors
Doc ID 023566 Rev 1 35/66
3.9 RS-232 connector CN12
Figure 16. RS-232 connector CN12 (front view)
Table 28. RS-232 connector CN12 with HW flow control and ISP support
Pin number Description Pin number Description
1 NC 6 Bootloader_BOOT0
2 RS232_RX (PD6) 7 RS232_RTS(PD4)
3 RS232_TX (PD5) 8 RS232_CTS(PD3)/Bootloader_RESET
4 NC 9 NC
5 GND
6 7 8 9
1 2 3 4 5
Front view
MS19140V2
Connectors UM1564
36/66 Doc ID 023566 Rev 1
3.10 Daughterboard extension connectors CN13 and CN14Two 50-pins male header connectors CN13 and CN14 can be used to connect with daughterboard or standard wrapping board to STM32373C-EVAL evaluation board. All GPI/Os are available on them. The space between these two connectors and position of power, GND and RESET pins are defined as a standard which allows to develop common daughterboards for several evaluations boards.
The standard width between CN13 pin1 and CN14 pin1 is 2700 mils (68.58 mm). The standard was implemented on the majority of evaluation boards. Each pin on CN13 and CN14 can be used by a daughterboard after disconnecting it from the corresponding function block on STM32373C-EVAL evaluation board. Please refer to Table 29 and Table 30 for more details.
Table 29. Daughterboard extension connector CN13
Pin Description Alternative functionHow to disconnect from function block
on STM32373C-EVAL board
1 GND - -
3 PC7 I2S_CK -
5 PC9 I2S_DIN -
7 PA10 I2C2_SDA Keep JP5 on open.
9 PA11 USB_DM Remove R61.
11 PC14 OSC32_IN Remove R36, close SB25.
13 PA13 SWDAT/JTMS Disconnect CN15, CN17.
15 PC15 OSC32_OUT Remove R37, close SB26.
17 PA15 JTDI Disconnect CN15, CN17.
19 GND - -
21 PD0 CAN_RX Remove R10.
23 PD2 LCD_CS Remove R163.
25 PD4 USART2_RTS Remove R46.
27 PD6 USART2_RX/ IRDA Remove R199.
29 PD7 HDMI_HPD_SOURCE Remove R135.
31 PB3 JTDO/TRACESWO Disconnect CN15, CN17.
33 PB5 IR_IN Remove R113.
35 PB7 I2C1_SDA Remove R148.
37 PB9 IR-Out_LED Remove R249.
39 GND - -
41 PE3 TRACED0 / uSDcard_Detect Remove R60, R64.
43 PE5 TRACED2 / SHIELD_CT Remove R83, mount R95.
45 PF9 JOYSTICK_RIGHT Remove R91.
47 PF10 JOYSTICK_UP Remove R69.
49 D5V - -
UM1564 Connectors
Doc ID 023566 Rev 1 37/66
2 PC6 I2S_WS -
4 PC8 I2S_MCK -
6 PA8 I2C2_SMB Remove R215.
8 PA9 I2C2_SCL Keep JP4 on open.
10 GND - -
12 PA12 USB_DP Remove R75.
14 PF6 - -
16 PA14 SWCLK/JTCK Disconnect CN15, CN17.
18 PC10 SPI3_SCK -
20 PC11 SPI3_MISO Remove R24.
22 PC12 SPI3_MOSI -
24 PD1 CAN_TX Remove R248.
26 PD3 USART2_CTS Remove R210.
28 PD5 USART2_TX/ IRDA Remove R47.
30 GND - -
32 PB4 JNTRST Disconnect CN15, CN17.
34 PB6 I2C1_SCL Remove R139.
36 PB8 CEC Remove R159.
38 PE0 HDMI_HPD_SINK Remove R176.
40 PE1 - -
42 PE2 TRACECLK / SPI3_CS_uSDcard Remove R35, disconnect CN15.
44 PE4 TRACED1 /SHIELD Remove R72, mount R93.
46 PE6 TRACED3 / WKUP_JOYSTICK_SEL Remove R85, R89.
48 +3V3 - -
50 GND - -
Table 29. Daughterboard extension connector CN13 (continued)
Pin Description Alternative functionHow to disconnect from function block
on STM32373C-EVAL board
Connectors UM1564
38/66 Doc ID 023566 Rev 1
Table 30. Daughterboard extension connector CN14
Pin Description Alternative functionHow to disconnect from function block
on STM32373C-EVAL board
1 GND -
3 PD14 SLIDER_3 Remove R11, close SB9.
5 PD11 AUDIO_RST Remove R79.
7 PD9 - -
9 PC13 - -
11 RESET# - -
13 PB15 - -
15 PB10 - -
17 PE14 PRESSURE_TEMPERATURE Remove R196.
19 D5V - -
21 PE11 ADC_SD Remove R39.
23 PF0 OSC_IN Remove X2, C18, close SB23.
25 PE9 PRESSURE_N Remove R21, C9, close SB17.
27 PE8 PRESSURE_P Remove R23, C10, close SB16.
29 PB2 1.8V POR_RFU Remove R98.
31 PB1 ADC_POT_IN Remove R52, C62.
33 PC5 USB_DISCONNECT Remove R51.
35 PA7 COMP2_OUT_LED Remove R22.
37 PA5 ADC_DAC_SAR2 Remove R40.
39 GND - -
41 PA3 COM_IN+ Remove R54.
43 PA1 LDR_OUT Remove R62.
45 PF2 JOYSTICK_DOWN Remove R67.
47 PC2 LED3 Remove R77.
49 PC0 LED1 Remove R88.
2 PD15 SLIDER_CT Remove C7, close SB8.
4 PD13 SLIDER_2 Remove R12, close SB10.
6 PD12 SLIDER_1 Remove R13, close SB11.
8 PD10 - -
10 GND - -
12 PD8 - -
14 PB14 - -
16 PE15 - -
18 PE13 - -
UM1564 Connectors
Doc ID 023566 Rev 1 39/66
20 PE12 ECG Remove R14, close SB13.
22 PE10 - -
24 VDD - -
26 PF1 OSC_OUT Remove R38, close SB24.
28 PE7 RTD_IN Remove C11, C17, R34, close SB18.
30 GND - -
32 PB0 MIC_IN Remove R136.
34 PC4 - -
36 PA6 DAC2_OUT1_AUDIO / ECG_DAC Remove R92, R201.
38 PA4 ADC_DAC_SAR1 Remove R43.
40 PF4 JOYSTICK_LEFT Remove R68.
42 PA2 KEY_BUTTON Remove R90.
44 PA0 WKUP_BUTTON / IDD Remove R150.
46 PC3 LED4 Remove R87.
48 PC1 LED2 Remove R78.
50 GND - -
Table 30. Daughterboard extension connector CN14 (continued)
Pin Description Alternative functionHow to disconnect from function block
on STM32373C-EVAL board
Connectors UM1564
40/66 Doc ID 023566 Rev 1
3.11 ETM Trace debugging connector CN15
Figure 17. ETM Trace debugging connector CN15 (top view)
3.12 User USB type B connector CN16
Figure 18. User USB type B connector CN16 (front view)
Table 31. ETM Trace debugging connector CN15
Pin number Description Pin number Description
1 VDD power 2 TMS/PA13
3 GND 4 TCK/PA14
5 GND 6 TDO/PB3
7 KEY 8 TDI/PA15
9 GND 10 RESET#
11 GND 12 TraceCLK/PE2
13 GND 14 TraceD0/PE3 or SWO/PB3
15 GND 16 TraceD1/PE4 or nTRST/PB4
17 GND 18 TraceD2/PE5
19 GND 20 TraceD3/PE6
MS30946V1
19 17 15 13 11 9 7 5 3 1
20 18 16 14 12 10 8 6 4 2
11 9
Table 32. User USB type B connector CN16
Pin number Description Pin number Description
1 VBUS (power) 4 GND
2 DM 5, 6 Shield
3 DP
UM1564 Connectors
Doc ID 023566 Rev 1 41/66
3.13 JTAG/SWD debugging connector CN17
Figure 19. JTAG/SWD debugging connector CN17 (top view)
3.14 Power connector CN18The STM32373C-EVAL evaluation board can be powered by a DC 5V power supply via the external power supply jack connector (CN18) shown in Figure 20. The central pin of CN18 must be positive.
Figure 20. Power supply connector CN18 (front view)
Table 33. JTAG/SWD debugging connector CN17
Pin number Description Pin number Description
1 VDD power 2 VDD power
3 PB4 4 GND
5 PA15 6 GND
7 PA13 8 GND
9 PA14 10 GND
11 RTCK 12 GND
13 PB3 14 GND
15 RESET# 16 GND
17 DBGRQ 18 GND
19 DBGACK 20 GND
MS30946V1
19 17 15 13 11 9 7 5 3 1
20 18 16 14 12 10 8 6 4 2
11 9
Connectors UM1564
42/66 Doc ID 023566 Rev 1
3.15 ST-LINK/V2 programming connector CN19Connector CN19 is used only for embedded ST-LINK/V2 programming during board manufacture. It is not populated by default and not for end user.
3.16 TFT LCD connector CN20A TFT color LCD board is mounted on CN20. Please refer to Section 2.24: Display and input devices for more details.
3.17 Audio jack CN21A 3.5 mm stereo audio jack CN21 connected to audio DAC is available on STM32373C-EVAL board.
3.18 ST-LINK/V2 USB type B connector CN22USB connector CN22 is used to connect the embedded ST-LINK/V2 to the PC for board-debugging purposes.
Figure 21. USB type B connector CN22 (front view)
Table 34. USB type B connector CN22
Pin number Description Pin number Description
1 VBUS (power) 4 GND
2 DM 5, 6 Shield
3 DP
UM1564 Schematics
Doc ID 023566 Rev 1 43/66
4 Schematics
The following schematics are listed:
● Figure 22: Schematic diagram of STM32373C-EVAL on page 44
● Figure 23: STM32373C-EVAL MCU on page 45
● Figure 24: STM32373C-EVAL audio on page 46
● Figure 25: STM32373C-EVAL peripherals on page 47
● Figure 26: STM32373C-EVAL power on page 48
● Figure 27: STM32373C-EVAL ST-LINK (JTAG only) on page 49
● Figure 28: STM32373C-EVAL JTAG and Trace on page 50
● Figure 29: STM32373C-EVAL RS-232 and IrDA on page 51
● Figure 30: STM32373C-EVAL HDMI_CEC on page 52
● Figure 31: STM32373C-EVAL LCD and SD card on page 53
● Figure 32: STM32373C-EVAL CAN and IR on page 54
● Figure 33: STM32373C-EVAL Touch slider on page 55
● Figure 34: STM32373C-EVAL I2C peripherals on page 56
● Figure 35: STM32373C-EVAL PT100 temperature sensor and connectors on page 57
● Figure 36: STM32373C-EVAL ECG and pressure sensor on page 58
● Figure 37: MB989 LCD daughter on page 59
Schematics UM1564
44/66 Doc ID 023566 Rev 1
Figure 22. Schematic diagram of STM32373C-EVAL
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UM1564 Schematics
Doc ID 023566 Rev 1 45/66
Figure 23. STM32373C-EVAL MCU
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PD4
PD5
PD6
PC10
PC11
PB14
PB15
PB10
PC12
PE14
RE
SE
T#
PB8
PC5
PA0
PB9
PC13
PD8
PD9
PD10
PD11
PD12
PC6
PC7
PC8
PC9
R37
0
PE15
PE9
PE8
PE11
PE10
PE12
PE13
PA1
PC1
PC2
PC3
PD13
PD2
PE1
PB1
PB2
PA15
PB3
PD14
PB0
PC4
PE2
PE3
PE4
PE5
PE6
PA3
PA13
PA14
PB4
PC0
PA2
PA8
PD7
PD15
PE7
PC14
PC15
BO
OT0
WAK
EUP
HD
MI_
HPD
_SO
UR
CE
SLI
DE
R_3
AD
C_D
AC
_SA
R2
USB
_DM
I2C
2_S
CL
I2C
2_S
DA
TMS
/SW
DIO
TCK
/SW
CLK
TDI
MIC
_IN
CO
M_I
N+
TDO
/SWO
TRST
IR_IN
HD
MI_
CEC
IR_L
ED
RE
SE
T#
LDR
_OUT
SLI
DE
R_2
SLI
DE
R_1
US
AR
T2_RX
US
AR
T2_TX
US
AR
T2_R
TSU
SA
RT2
_CTS
ECG
AD
C_S
D
PRE
SS
UR
E_N
PRE
SS
UR
E_P
SPI
3_M
OSI
SPI
3_M
ISO
SPI
3_S
CK
LED4
LED3
LED1
I2S
_MCK
I2S
_CK
I2S
_CM
D
LED2
RE
SE
T#R
203
820
12
34
56
78
910
1112
1314
1516
1718
1920
2122
2324
2526
2728
2930
3132
3334
3536
3738
3940
4142
4344
4546
4748
4950
CN
13
2213
S-50G
12
34
56
78
910
1112
1314
1516
1718
1920
2122
2324
2526
2728
2930
3132
3334
3536
3738
3940
4142
4344
4546
4748
4950
CN
14
2213
S-50G
PB5
PB6
PB7
PA4
PA5
PA6
PA7
PA11
PA12
PA9
PA10
PB14
PB15
PB10
PB8
PA0
PB9
PA1
PB1
PB2
PA15
PB3
PB0
PA3
PA13
PA14
PB4
PA2
PA8
PE0
PD0
PD1
PD3
PD4
PD5
PD6
PC10
PC11
PC12
PE14
PC5
PD8
PD9
PD10
PD11
PC6
PC7
PC8
PC9
PE9
PE8
PE11
PE10
PE12
PE13
PC1
PC2
PC3
PD2
PE1
PC4
PE2
PE3
PE6
PC0
PD7
PE7
PC13
+3V3
D5V
D5V
Ext
ensi
on c
onne
ctor
Boo
tload
er_B
OO
T0
Boo
tload
er_R
ES
ET
JP8
D2
BAT
60J
JP9
D1
BAT
60J
AD
C_D
AC
_SA
R1
I2S
_DIN
PC14
PC15
SB
25
SB
26
Ope
n by
defa
ult
Left
Rig
ht
PF0-
OS
C_I
N12
PF1-
OS
C_O
UT13
NR
ST14
PA0
23
PA1
24
PA2
25
PA3
26
PA4
29
PA5
30
PA6
31
PA7
32
PB0
35
PB1
36
PB2
37
PB10
47
PB14
53
PB15
54
PA8
67
PA9
68
PA10
69
PA11
70
PA12
71
PA13
72
PF6
73
PA14
76
PA15
77
PB3
89
PB4
90
PB5
91
PB6
92
PB7
93
BO
OT0
94
PB8
95
PB9
96
PE2
1PE
32
PE4
3PE
54
PE6-
WK
UP3
5
PC13
-WK
UP2
7PC
14-O
SC
32_I
N8
PC15
-OS
C32
_OUT
9
PC0
15PC
116
PC2
17PC
318
PC4
33PC
534
PE7
38PE
839
PE9
40PE
1041
PE11
42PE
1243
PE13
44PE
1445
PE15
46
PD8
55PD
956
PD10
57PD
1158
PD12
59PD
1360
PD14
61PD
1562
PC6
63PC
764
PC8
65PC
966
PC10
78PC
1179
PC12
80
PD0
81PD
182
PD2
83PD
384
PD4
85PD
586
PD6
87PD
788
PE0
97PE
198
PF9
10
PF10
11
PF2
19
PF4
27
U9A
STM
32F
373V
CT6
I2C
2_S
MB
US
B_D
P
CA
N_R
XC
AN
_TX
SLI
DE
R_C
T
Mic
roS
D_C
STR
AC
E_D0
TRA
CE
_D1
Key
_But
ton
JOY
_SE
LR
TD_I
N
PRE
SS
UR
E_T
EMP
JOY
_DO
WN
JOY
_LE
FT
JOY
_UP
JOY
_RIG
HT
PF2
PF4
PF6
PF9
PF10
PF0
PF1
PF2
PF4
PF6
PF9
PF10
PF0
PF1
VDD
SB
23
SB
24
DA
C2_
OUT
TRA
CE
_CK
LCD
_CS
R72
0R
290
SHI
ELD
TRA
CE
_D2R
830
R73
0S
HIEL
D_C
T
R85
0TR
AC
E_D3
HD
MI_
HPD
_SIN
K
Aud
io_R
ST
SD
card
_det
ect
EC
G_D
AC
AD
C_P
OT_
IN
DB
_PD
14D
B_P
D13
DB
_PD
12
DB
_PD
15
1V8_
PO
R
R35
0
R64
0
US
B_d
isco
nnec
t
I2C
1_S
CL
I2C
1_S
DA
R38
0
VDD
VDD
R36
0
PE15
1 2
LD9
Gre
en
3
2
1
T3 9013
R20
651
0
+3V3
R22
1K
R92
0R
201
0
CO
MP
2 OUT
SB
18S
B17
SB
16
SB
13
SB
14
DB
_PE
4D
B_P
E5
C62
100n
F
Ope
n dr
ain
& FT
pin
!
Schematics UM1564
46/66 Doc ID 023566 Rev 1
Figure 24. STM32373C-EVAL audio
11
22
33
44
DD
CC
BB
AA
STM
icro
elec
troni
csTi
tle:
Num
ber:
Rev
:S
heet
of
B.2
Dat
e:8/
9/20
12
12
U28
KE
CG
2740
TBL
C89
100n
F
R16
910
0K
R16
810
0K
TP15 M
IC+
R24
51K
R16
510
0
R16
42K
2 C13
547
pF VDD
R17
115
K
1 3
2
RV1
[N/A
]
C82
10uF
C80
4.7u
FC
812.
2uF
R17
018
K
VDD
R14
068
0 C71
4.7u
F
MB
988
315
STM
3237
3C-E
VAL A
UD
IO
I2S
_CM
DI2
S_D
INI2
S_C
K
I2C
2_S
CL_
5V
I2C
2_S
DA
_5V
R11
551
1 2
U30
[N/A
]R
7924
9K[1
%]
Aud
io_R
ST
I2S
_MCK
PC8
PC9
PC6
PC7
PA9
PA10
+5V
I2C
addr
ess 0
x94
C50
1uF C
321u
F
SDA
1
SCL
2
A03
SPK
R_O
UTA
+4
VP5
SPK
R_O
UTA
-6
SPK
R_O
UTB+
7
VP8
SPK
R_O
UTB
-9
-VH
PFIL
T10
FLYN
11
FLYP
12
+VHP
13
HP/L
INE
_OU
TB14
HP/L
INE
_OU
TA15
VA16
AG
ND17
FIL
T+18
VQ19
TSTO
20
AIN
4A21
AIN
4B22
AIN
3A23
AIN
3B24
AIN
2A25
AIN
2B26
AFIL
TA27
AFIL
TB28
AIN
1A29
AIN
1B30
SPK
R/H
P31
RE
SET
32
VL33
VD34
DG
ND35
TSTO
36
MC
LK37
SC
LK38
SD
IN39
LRCK
40
GN
D/T
herm
al P
ad0
U19
CS
43L
22-C
N2
C52
1uF
+2V5
VDD
C53
1uF
C51
1uF
C45
150p
F(C
OG
)C
4615
0pF(
CO
G)
C55
0.02
2uF
R11
651
C56
0.02
2uF
R16
647
K
+2V5
12 3 4 56
CN
21
ST-
212-
02V
DA
C2_
OUT
R10
910
0R
233
100K
C33
1uF
R94
0
PD
11
PA6
R21
70
R22
00
C12
810
0nF
C12
610
0nF
C13
010
0nF
C43
100n
FC
132
100n
F
C44
100n
F
R10
3
576K
[1%
]C
3910
uF
Clo
se t
o M
CU
on P
CB
C72
180p
F
TP16
MIC
_OUT
C79
[N/A
]
R24
10
MIC
_IN
R14
182
K
+3V3
PB0
R13
622
043
1
25
U32
TS46
1CLT
Add
ress
:100
1010
2
13
G SD
TR1
FDN
327N
2
13
G SD
TR2
FDN
327N
R50
4K7
R10
84K
7
VDD
D5
BAT
60J[
N/A
]
D3
BAT
60J[
N/A
]
UM1564 Schematics
Doc ID 023566 Rev 1 47/66
Figure 25. STM32373C-EVAL peripherals
11
22
33
44
DD
CC
BB
AA
STM
icro
elec
troni
csTi
tle:
Num
ber:
Rev
:S
heet
of
B.2
Dat
e:7/
9/20
12M
B98
84
15
STM
3237
3C-E
VAL P
erip
hera
ls
12
LD3
Red
12
LD2
Ora
nge
12
LD4
Blu
e
12
LD1
Gre
en+3
V3R
147
510
R15
768
0
R14
668
0
R15
668
0LE
D4
LED3
LED1
LED2
C8810nF
C8710nF
C8610nF
C8410nF
C8510nF
R16
210
0C
OM
MON
5
Sel
ectio
n2
DW
ON3
LEFT
1
RIG
HT4
UP6
GND
0
GND
0
U34
MT0
08-A
R69
0R
910
R68
0R
670
R89
0JO
Y_S
EL
JOY
_DO
WNJO
Y_L
EFT
JOY
_RIG
HTJO
Y_U
P
Joys
tick
WK
UP
/TA
MP
ER B
utto
nLE
Ds
USB
VDD
+3V3 R
244
1K[1
%]
R24
62.
67K
[1%
]
+3V3
1 2
LD6
Red
R15
451
0
+3V3
Low
Volta
ge L
ED
PC0
PC1
PC2
PC3
PF1
0P
F9P
F4P
F2P
E6R88
0
R78
0
R77
0
R87
0
U5V
C12
210
0nF
VCC
1
D-2
D+
3
GND
4
SH
ELL
0
SH
ELL
0
CN
16U
SB
-type
B co
nnec
tor
I/O1
1
GND
2
I/O2
3I/O
24
Vbu
s5
I/O1
6U
13
US
BLC
6-2P
6 (o
ptio
nal)
U5V
R76
1MC
294.
7nF
USB
_DM
US
B_D
PR
750
R61
0
R15
122
0K1
4 3
2
B2
WK
UPC
83[N
/A]V
DD
R15
810
0
R15
033
0W
AKE
UP
657
U33
B
TS37
02IPT
231
48
U33
ATS
3702
IPT
R14
451
0
1 2
LD5
Gre
en
VD
D<2
.4V
VD
D>2
.4V
PA12
PA11
PA0
R24
30
R24
20
R16
74K
7
1
43
2
B3
US
ER (
Blu
e)C
7810
0nF
VDD
R15
210
0
R90
0K
ey_B
utto
n
Use
r But
ton
PA2
R84
1.5K
R86
10K
U5V
R66
36K
2
31
T5 9013
VDD
2
31
T4 9013
R65
47K
VDD
US
B_d
isco
nnec
tR
51
0P
C5
VD
D>3
VV
DD
R16
00
Ope
n dr
ain
pin!
Inpu
t pi
n w
ith p
ull-d
own
Schematics UM1564
48/66 Doc ID 023566 Rev 1
Figure 26. STM32373C-EVAL power
11
22
33
44
DD
CC
BB
AA
STM
icro
elec
troni
csTi
tle:
Num
ber:
Rev
:S
heet
ofB
.2D
ate:
7/9/
2012
MB
988
515
STM
3237
3C-E
VAL
Pow
er
C99
100n
FC
115
100n
FC
112
100n
F
VD
DIO
C8
1uF
Vin
3
GND 1
Vout
2
U25
LD10
86D
2M33
SV1
SG2
CV3
CG1
4
CG2
5
CG3
6
U20
BN
X00
2-01
C34
220u
F
E5V
TP8
5V+5
VR
531K
12
LD8
red
C48
47uF
C58
10uF
C57
100n
F
+5V
+3V3
VD
D_A
DJ
+5V
TP2
Gro
und
TP7
+3V3
TP9
VD
D_A
DJ
1 32
CN
18
DC-
10B
Z1 SM
AJ5
.0A
-TRC
4710
0nF
1
2
3
U26
ZEN
056V
130A
24LS
1 3
2R
V233
86P-5
03H
[5%
]
E5V
D5V
U5V
78
56
34
12
JP10
Hea
der 4
X2
U5V
_ST_
LINK
+3V3
R97
4K7 C
3610
0nF
C40
4.7u
F
32
1 JP12
32
1 JP13
TP10
VDD
VDD
+3V3
TP6
VD
DAV
DD
IO
VD
DIO
R32 0V
DDA
TP5
SA
R_V
RE
FS
AR
_VR
EF+
VS
SA
/SA
R_V
RE
F-20
VD
DA21
SA
R_V
RE
F+22
SD
_VSS
49
VS
S_3
74
VS
S_1
99
VB
AT6
VD
D_2
28
SD
1/2_
VD
D50
VD
D_3
75
VD
D_1
100
SD
_VR
EF-
48
SD
3_V
DD51
SD
_VR
EF+
52
U9B
STM
32F
373V
CT6
JP17
TP4
SD
_VR
EF
C4
100n
F
SD
_VR
EF+
SD
_VR
EF+
C11
61u
FC
2010
0nF
SA
R_V
RE
F+
C11
71u
FC
102
100n
F
VD
DA
C11
010
0nF
C10
310
0nF
D4
BAT
60J
Vin
3Vo
ut2
1
U24
LD11
17S
25TR
+5V
C49
10uF
+2V5
TP13
2V5
+5V
TP12 +1
V8V
DD
_ADJ
R10
01K
C38
[N/A
]C
424.
7uF
+1V8
1V8_
PO
R
R99
10K
R55
0
R10
2[N
/A]
R56
0
R57
[N/A
]V
DD
_ADJ
C30
100n
F
JP15
VDD
BT1
CR
1220
hold
er
12
3 JP11
VDD
C35
[N/A
]
C41
[N/A
]
R11
415
K[1
%]
R11
1
31.6K
[1%
]
R10
659
K[1
%]
R10
7
31.6K
[1%
]
Pow
er S
uppl
y V
DD
_AD
J [2.
1V t
o 3.
5V]
Vout
=1.2
2*(1
+R1/
R2)
cons
ider
ing
pote
ntio
met
er e
rror
tol
eran
ce
Pow
er S
uppl
y 1.
8VVo
ut=1
.22*
(1+R
1/R
2)
[Cer
amic
]
[Cer
amic
]
C31
10uF
L1 BE
AD
VD
D_A
NA
R98
[N/A
]
EN1
GND 2
VO4
ADJ
5
GND 0
VI6
PG3
U16
ST1
L05
BPUR
EN1
GND 2
VO4
ADJ
5
GND 0
VI6
PG3
U17
ST1
L05
BPUR
AG
ND
AG
ND
VD
DA
AG
NDA
GND
AG
ND
L3 BE
AD
SB
21S
B7
SB
22
SB
5
SB
6S
B19
SB
15S
B12
SB
20
R70
0R
80[N
/A]
VD
DIO
R58
[N/A
]
C59
100n
F
JP16
PB2
C37
10uF
UM1564 Schematics
Doc ID 023566 Rev 1 49/66
Figure 27. STM32373C-EVAL ST-LINK (JTAG only)
11
22
33
44
DD
CC
BB
AA
STM
icro
elec
troni
csTi
tle:
Num
ber:
Rev
:S
heet
of
B.2
Dat
e:7/
9/20
12M
B98
86
15
STM
3237
3C-E
VAL S
T_LI
NK (
JTA
G on
ly)
VB
AT1
PC13
2
PC14
3
PC15
4
OS
C_I
N5
OS
C_O
UT6
/RS
T7
VS
SA8
VD
DA9
PA0
10
PA1
11
U2_
TX12
U2_RX 13
U2_CK 14
S1_CK 15
S1_MISO 16
S1_MOSI 17
PB0 18
PB1 19
PB2/BOOT1 20
PB10 21
VSS_1 23
VDD_1 24
PB12
25
PB11 22
S2_
CK26
S2_
MISO
27S
2_M
OS
I28
PA8
29PA
930
PA10
31PA
1132
PA12
33JT
MS34
VS
S_2
35V
DD
_236
JTCK37 JTDI38 JTDO39 JNRST40 PB541 PB642 PB743 BOOT044 PB845 PB946 VSS_347 VDD_348
U27
STM
32F
103C
8T6
20pF
C73
20pF
C74
12
X3 8MH
z+3
V3
STL_
USB
_DM
STL_
USB
_DP
STM
_R
ST
T_JTCK
T_JT
CK
T_JTDOT_JTDI
T_JT
MS
STM
_JT
MS_
SWD
IO
STM_JTCK_SWCLK
LED
_STL
INK
OS
C_IN
OS
C_O
UT
T_NRSTT_JRST
LED
_STL
INK
T_JT
CKT_
JTDI
T_JT
DO
T_N
RST
T_JT
MS
T_JR
ST
R13
4
4K7
R13
8
4K7
AIN
_1C
6310
0nF
R13
3
100K
+3V3
+3V3
VDD
+3V3
+3V3
+3V3
AIN
_1
VCC
1
D-2
D+
3
GND
4
SH
ELL
0
SH
ELL
0
CN
22
US
B-ty
peB
conn
ecto
r
STL_
USB
_DM
STL_
USB
_DP
+3V3
C76
100n
FC
6010
0nF
C69
100n
FC
6110
0nF
MC
U USB
JTAG
STM
_JT
MS_
SWD
IOST
M_
JTC
K_SW
CLK
+3V3
U5V
_ST_
LINK
C13
3
100n
F
C13
1
100n
F
TDI
TRST
TMS
/SW
DIO
TCK
/SW
CLK
TDO
/SWO
RE
SE
T#
SWI
M_P
U_C
TRL
R12
7
100K
Vcc
A1
A12
A23
GND
4D
IR5
B2
6B
17
Vcc
B8
U23
SN
74L
VC
2T45
DC
UT
+3V3
VDD
T_SW
O
T_SW
DIO
_IN
T_SW
DIO
_IN
T_SW
O
12
34
5
CN
19
JTAG
R12
8
1.5K
R13
110
K
R13
236
K23 1
T8 9013
+3V3
U5V
_ST_
LINK
R14
5[N
/A]R
137
10K
R12
6
100K
MCO
2 1
43
Red
Yello
w
LD7
HS
MF-
A20
1-A
00J1
+3V3
R14
310
0R
149
100
R15
30
C13
410
0nF
I/O1
1
GND
2
I/O2
3I/O
24
Vbu
s5
I/O1
6U
29
US
BLC
6-2P
6 (o
ptio
nal)
U5V
_ST_
LINK
R13
00
R14
20
Schematics UM1564
50/66 Doc ID 023566 Rev 1
Figure 28. STM32373C-EVAL JTAG and Trace
11
22
33
44
DD
CC
BB
AA
STM
icro
elec
troni
csTi
tle:
Num
ber:
Rev
:S
heet
of
B.2
Dat
e:7/
9/20
12M
B98
87
15
STM
3237
3C-E
VAL JTA
G&
Trac
e
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
CN
15FT
SH
-110
-01-
L-D
VV
DD
R22
7[N
/A]
R22
6[N
/A]
R23
1[N
/A]R
225
[N/A
]
R22
8[N
/A]
VDD
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
CN
17JT
AGV
DD
VDD
R23
210
K
R23
410
K
R22
910
KR
600
R23
0[N
/A]
R74
0R
223[
N/A
]
TDI
RE
SE
T#
TRA
CE
_D3TR
AC
E_D2
TRA
CE
_D1TR
AC
E_D0
TRA
CE
_CK
TRST
TMS
/SW
DIO
TCK
/SW
CLK
TDO
/SWO
Trac
e co
nnec
tor
JTA
G co
nnec
tor
KE
Y
PA13
PA14
PB3
PA15
PB4
PE6
PE5
PE4
PE3
PE2
R22
4[N
/A]
RS
1
22D
11 Z5V1
D8 Z5V1
D10 Z5V1
D7 Z5V1
D6 [N/A]
D9 Z5V1
UM1564 Schematics
Doc ID 023566 Rev 1 51/66
Figure 29. STM32373C-EVAL RS-232 and IrDA
11
22
33
44
DD
CC
BB
AA
STM
icro
elec
troni
csTi
tle:
Num
ber:
Rev
:S
heet
of
B.2
Dat
e:7/
9/20
12
US
AR
T2_TX
US
AR
T2_C
TS
SD5
TxD
3
GND
8
Ano
de (
VC
C2)
1
Cat
hode
2
RxD
4
VC
C16
NC7
U12
TFD
U63
00
R48
5R
4947
C27
100n
F
+3V3
C22
4.7u
F
IrDA
12
3
JP7
C2+
1
C2-
2V-
3
R1IN
4
R2IN
5
R3IN
6
R4IN
7
R5IN
8
T1O
UT9
T2O
UT10
T3O
UT11
T3IN
12T2
IN13
T1IN
14
R5O
UT15
R4O
UT16
R3O
UT17
R2O
UT18
R1O
UT19
R2O
UTB
20R
1OU
TB21
nSH
DN22
nEN
23
C1-
24G
ND25
VCC
26
V+27
C1+
28U
10
ST3
241E
BPR
C13100n
F
C14 10
0nF
C12
100n
F
C16
100n
FC
1510
0nF
+3V3
1 6 2 7 3 8 4 9 5
CN
12D
B9-
mal
e U
SA
RT2
+3V3
Boo
tload
er_R
ES
ET
MB
988
815
STM
3237
3C-E
VAL R
S23
2&IrD
A
Boo
tload
er_B
OO
T0
VC
CA1
A12
A23
GND
4D
IR5
B2
6B
17
VC
CB8
U11
SN
74L
VC
2T45
DC
UT
+3V3
VDD
VDD
R19
90
R21
00
C11
910
0nF
C12
010
0nF
US
AR
T2_R
TSU
SA
RT2
_TXD
US
AR
T2_R
XDU
SA
RT2
_CTS
US
AR
T2_T
XD
US
AR
T2_R
XD
US
AR
T2_R
TSU
SA
RT2
_TXD
US
AR
T2_RX
US
AR
T2_R
TS
RXD
RTS
TXD
CTS
12
3
JP6
IrDA
_RXD
IrDA
_RXD
PD5
PD3
PD6 P
D4
R47
100K
R46
100K
VDD
DSR
C23
100n
FC
284.
7uF
R21
151
0
Schematics UM1564
52/66 Doc ID 023566 Rev 1
Figure 30. STM32373C-EVAL HDMI_CEC
11
22
33
44
DD
CC
BB
AA
STM
icro
elec
troni
csTi
tle:
Num
ber:
Rev
:S
heet
of
B.2
Dat
e:7/
9/20
12
HD
MI_
HPD
_SIN
K
STM
3237
3C-E
VAL H
DM
I_C
EC
MB
988
915
Sin
kS
ourc
eH
DM
I_5V
_Sin
k
I2C
2_S
DA
_5VI2
C2_
SC
L_5V
R17
247
KR
173
47K
+3V3
R2
27K
HD
MI_
CEC
+5V
C1
4.7u
F
GND
2
IN5
EN4
OUT
1FA
ULT
3U1 S
TMP
S21
41S
TR@
54
HD
MI_
5V_S
ourc
e
R17
51M
HD
MI_
HPD
_SO
UR
CE
I2C
1_S
CL
I2C
1_S
DA
R21
31.
8KR
221
1.8K
+5V
SB
1S
B2
SB
3S
B4
R17
40
HD
MI
oper
atio
n mod
e
PC
B m
odifi
catio
n
===
====
====
====
====
====
====
====
====
====
====
=
sep
arat
e si
nk
N/A
sep
arat
e so
urce
N
/A
R
epea
ter
N
/
CE
C in
ject
or
Rem
ove
R12
0,R
172-R
175,
R21
3,R
221 & c
lose
SB
1-4
2
13
G
SDT2 2N
7002
+5V
PE0
PA9
PA10
PB8
PD7
PB6
PB7
TMD
S D
ata2
+
TMD
S D
ata2
-TM
DS
Dat
a1+
TMD
S D
ata1
-TM
DS
Dat
a0+
TMD
S D
ata0
-TM
DS
Clo
ck+
TMD
S C
lock
-
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 0
CN1
4715
1-005
1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
SH
EE
L0
CN2
4715
1-005
1
R17
610
KR
120
1K
HD
MI_
5V_S
ink
3
2
1 T1 9012
R1
10K
R15
90
R13
50
R13
90
R14
80
FT p
in &
Ope
n D
rain
mod
e ne
eded
UM1564 Schematics
Doc ID 023566 Rev 1 53/66
Figure 31. STM32373C-EVAL LCD and SD card
11
22
33
44
DD
CC
BB
AA
STM
icro
elec
troni
csTi
tle:
Num
ber:
Rev
:S
heet
of
B.2
Dat
e:7/
9/20
12M
B98
810
15
STM
3237
3C-E
VAL LC
D&
SD
card
Mic
roS
D_C
S
SPI
3_S
CKS
PI3_
MO
SI
LCD
_CS
+3V3
SPI
3_M
ISO
SD
card
_det
ect
Mic
roS
D ca
rd
+3V3
TFT
LCD
PE3
VC
CA1
A12
A23
GND
4D
IR5
B2
6B
17
VC
CB8
U15
SN
74L
VC
2T45
DC
UT
+3V3
VDD
VDD
R24
0
C12
510
0nF
C12
410
0nF
SPI
3_M
OSI
_3V
3
SPI
3_M
ISO
_3V
3
SPI
3_S
CK_3
V3
SPI
3_S
CK_3
V3
SPI
3_M
OSI
_3V
3
SPI
3_M
ISO
_3V
3
SPI
3_S
CK_3
V3
SPI
3_M
OSI
_3V
3P
C10
PC
11
PE2
PC
12
PD2
R28
10K
+3V3
R11
010
K
RE
SE
T#
+3V3
VDD
R11
24K
7
2
13
G SD
TR3
BS
N20
CS1
SCL
2
SDI
3
RS4
WR
5
RD6
RE
SET
8
VDD
9
VCI
10
SDO
7
GND
11
GND
12
BL_V
DD13
BL_C
ontro
l14
BL_G
ND15
BL_G
ND16
CN
20
2.8"
LC
D co
nnec
tor
+3V3
+5V
C67
10uF
L4 BE
ADC
6810
0nF
L5 BE
AD
R23
70
+3V3
R23
8[N
/A]
RVS
1CS
2DI
3V
dd4
SC
LK5
Vss
6D
O7
RVS
8
SW
29
SW
110 0 0 0 0
CN7
PJS
008-2
000
(SM
S06
4FF o
r S
MS
128FF
)
R24
70
R16
30
Ope
n dr
ain
pin!
Ope
n dr
ain
pin!
Schematics UM1564
54/66 Doc ID 023566 Rev 1
Figure 32. STM32373C-EVAL CAN and IR
11
22
33
44
DD
CC
BB
AA
STM
icro
elec
troni
csTi
tle:
Num
ber:
Rev
:S
heet
ofB
.2D
ate:
8/9/
2012
MB
988
1115
STM
3237
3C-E
VAL C
AN
& IR
D1
GND
2
VCC
3
R4
Vref
5C
AN
L6
CA
NH7
RS8
U4 SN
65H
VD
230D
+3V3
+3V3
R7
120
JP2
32
1
JP3
R18
210
K
+3V3
C6
100n
F
R8
0
R19
0R
9[N
/A]
Def
ault
setti
ng: 1
<->2
Def
ault
setti
ng: O
pen 1 6 2 7 3 8 4 9 5
CN5
DB
9-m
ale
CA
N co
nnec
tor
PD1
PD0
CA
N_T
X
R10
0C
AN
_RX
CAN
IR_L
ED
R12
522
+3V3
R11
910
0
1 2
LD10
SFH
409-2
IR_T
RA
NS
MIT
TER
PB9
VDD 3
2
1T6 9013
3
2
1T7 9013
R12
410
K
R12
31K
+3V3
23 1
U22
TSOP
3483
6R
118
100
C54
4.7u
F
IR_IN
PB5
IR
SB
28
R24
00V
DD
>3V
IR_R
ecei
ver
R11
30
R24
90
R24
80
R12
22K
2
UM1564 Schematics
Doc ID 023566 Rev 1 55/66
Figure 33. STM32373C-EVAL Touch slider
11
22
33
44
DD
CC
BB
AA
STM
icro
elec
troni
csTi
tle:
Num
ber:
Rev
:S
heet
of
B.2
Dat
e:7/
9/20
12M
B98
812
15
STM
3237
3C-E
VAL Tou
ch S
lider
SLI
DE
R_2
SLI
DE
R_3
SHI
ELD
SHI
ELD
_CT
R82
0
PD
13
PD
14
PE4
PE5
<---
-ES
D re
sist
or cl
ose
to M
CU
pad
<----
Act
ive
shie
ld
SLI
DE
R_1
PD
12
DB
_PD
14
DB
_PD
13
DB
_PD
12
SLI
DE
R_C
T
C7
47nF
(CO
G)G
RM
31M
5C1H
473J
A01
L
SB
8
SB
9
SB
10
SB
11
DB
_PD
15
R31
2.2k
PD
15
SLD_1
SLD_2
SLD_3
C12
322
0nF
11
22
33S
1S
lider
3 p
os
R13
10K
R12
10K
R11
10K
R93
[N/A
]D
B_P
E4
R95
[N/A
]D
B_P
E5
Schematics UM1564
56/66 Doc ID 023566 Rev 1
Figure 34. STM32373C-EVAL I2C peripherals
11
22
33
44
DD
CC
BB
AA
STM
icro
elec
troni
csTi
tle:
Num
ber:
Rev
:S
heet
of
B.2
Dat
e:7/
9/20
12
I2C
2_S
CL_
5VI2
C2_
SD
A_5V
R22
20
R21
80
SDA
1
SCL
2
OS
/INT
3
GND
4A2
5A1
6A0
7V
DD8
U14
STL
M75
M2E
C12
110
0nF
R21
50
Tem
pera
ture
sen
sor
I2C
2_S
MB
MB
988
1315
STM
3237
3C-E
VAL I2C
Per
iphe
rals
PA10
PA9
PA8
E2P
RO
M R
F C
ON
NE
CTO
R
R18
50
R19
00
1 1
2 2
3 3
4 4
CN3
SS
M-10
4-L-
SH
SB
27
R21
910
K
R10
110
KJP
14
C12
7
100n
F
DU
1
E1
2
E2
3
VSS
4S
DA5
SCL
6W
C7
VCC
8U
18
M24
M01
-HR
MN
6T
R19
50
R18
70
Add
ress
:100
100(
A0)
Add
ress
:101
0(E
2)00
Add
ress
:101
001(
A16)
E2P
RO
M
+5V
+5V
I2C
2_F_
SDA
I2C
2_F_
SCL
R10
41.
8KR
105
1.8K
+5V
+5V
+5V
R21
44K
7
+5V
+5V R23
50
+5V
UM1564 Schematics
Doc ID 023566 Rev 1 57/66
Figure 35. STM32373C-EVAL PT100 temperature sensor and connectors
11
22
33
44
DD
CC
BB
AA
STM
icro
elec
troni
csTi
tle:
Num
ber:
Rev
:S
heet
of
B.2
Dat
e:7/
9/20
12M
B98
814
15
STM
3237
3C-E
VAL P
T100
Tem
p.S
enso
r & C
ON
.
3 14
2 5
U8 TSV
631A
ILT
3 14
2 5
U7 TSV
631A
ILT
R27
1K8[
1%]
R44
1K8[
1%]
R20
91K
8[1%
]
R20
71K
8[1%
]
R41
1K8[
1%]
C11
310
0nF
C11
410
uF
R20
8
1K8[
1%]
R20
41K
8[1%
]
R33
1K8[
1%]
R26
100
C11
110
0nF
C10
7100
nF
R34
220
C17
100n
FC
1110
uFRTD
_IN
R30
PT10
0
1 3
2R
V310
K
AD
C&
DA
C con
nect
orP
oten
tiom
eter
/Com
para
tor
LDR
_OUT
R59
8.2K
PA1
CO
M_I
N+PA
3
R63
VT9
ON1
R62
0A
DC
_PO
T_IN
R52
0 R54
[N/A
]
PB1
AD
C_D
AC
_SA
R1
C26
[N/A
]
R45
0R
430
Clo
se t
o M
CU
on P
CB
PA4
CN
11
AD
C_S
D
C11
8[N
/A]
R21
2 0R
390
Clo
se t
o M
CU
on P
CB
PE
11
CN9
AD
C_D
AC
_SA
R2
C21
[N/A
]
R42
0R
400
Clo
se t
o M
CU
on P
CB
PA5
CN
10P
E7 PT1
00 p
lace
nea
r S
TML7
5
PT1
00 T
empe
ratu
re S
enso
r
AD
C/D
AC
CO
N
Cur
rent
Sou
rce
R25
0
CN6
VD
D_A
NA
VD
D_A
NA
VD
D_A
NA
C10
91u
F
C10
61u
F
AG
ND
AG
ND
AG
ND
AG
ND
AG
NDA
GND
AG
ND
AG
ND
AG
ND
AG
ND
VD
D_A
NA
VD
D_A
NA
32
1
JP18
R12
110
0[0.
1%]
PIN
1
PIN
1 PIN
1
Schematics UM1564
58/66 Doc ID 023566 Rev 1
Figure 36. STM32373C-EVAL ECG and pressure sensor
11
22
33
44
DD
CC
BB
AA
STM
icro
elec
troni
csTi
tle:
Num
ber:
Rev
:S
heet
of
B.2
Dat
e:8/
9/20
12M
B98
815
15
STM
3237
3C-E
VAL E
CG
& P
ress
ureS
enso
r
Vs
3
GND
1
Vout
+2
Vout
-4
U5 MPX
2102
C10
010
0nF
R20
022
K[1
%]
R19
4
1K[1
%]
R19
822
0K[1
%]
R20
522
0K[1
%]
R19
322
K[1
%]
R20
100K
[0.1
%]
R4
100K
[0.1
%]
C90
100n
F
TS2
TS_P
AD
R6
10K
R18
410
0K
C93
100n
F
R16
220
ECG
R15
1M
R18
820
C94
4.7u
F
R17
8
2M[0
.1%
]
R17
7
2M[0
.1%
]
C2
100n
F
R3
1M
PRE
SS
UR
E_P
PRE
SS
UR
E_N
EC
G_D
AC
R18
04K
7
R18
84K
7C
9710
0nF
R19
747
PRE
SS
UR
E_T
EMP
R19
60
PA6
PE8
PE9
PE
12
PE
14
TS1
TS_P
AD
231
4 8
U6A
TSV
632A
IDT
6 57
U6B
TSV
632A
IDT
C10
510
0nF
EC
G Pre
ssur
e Sen
sor
C10
41u
F
C10
11u
F
RG
RGR
EF
Rig
ht
Left
14*1
4mm
squ
are
R23
100
C10
10uF
R21
100
C9
10uF
L2 BE
AD
2 36
47
15
8
U2 INA
333A
IDG
KT
2 31
411
U3A
TSV
624A
IPT
6 57
U3B
TSV
624A
IPT
13 1214
U3D
TSV
624A
IPT
9108
U3C
TSV
624A
IPT
TP1
RIG
HT
C91
47nF
R5
4K7
JP1
R17
9
3K3
C98
15nF
C5
10uF
R17
2K2
R18
115
K
C96
10uF
C92
1uF
VD
D_A
NA
VD
D_A
NA
VD
D_A
NA
VD
D_A
NA
VD
D_A
NA
R14
0
R18
3[N
/A]
TP3
LEFT
C3
4.7u
F
C95
1uF
C10
81u
F
AG
ND
AG
NDA
GND
AG
ND
AG
ND
AG
ND
AG
NDA
GND
AG
ND
AG
ND
AG
ND
AG
ND
AG
ND
AG
ND
AG
ND
+5V
UM1564 Schematics
Doc ID 023566 Rev 1 59/66
Figure 37. MB989 LCD daughter
11
22
33
44
DD
CC
BB
AA
STM
icro
elec
troni
csTi
tle:
Num
ber:
Rev
:S
heet
of
B.1
Dat
e:5/
10/2
012
Ena
ble
Dot
Clk
HS
YNC
VS
YNC
CS RS
WR
_SCL
RD #RE
SET
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PD8
PD9
PD10
PD11
PD12
PD13
PD14
PD15
PD16
PD17
CS RS WR
_SCL
RD #RE
SET
VDD
VDD
BLG
ND
BLV
DDBL_C
ontro
lEnable
DotClkHSYNC
VSYNC
VDD
RP1
10K
C3
4.7u
F/10
V
R8
4K7
R7
4K7
SDO
SDI
SDI
SDO
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PD8
PD10
PD11
PD12
PD13
PD14
PD15
PD16
PD17
RP2
10K
RP3
10K
RP4
10K
RP5
10K
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PD8
PD9
PD10
PD11
PD12
PD13
PD14
PD15
PD16
PD17R
64K
7R
54K
7
SDO
SDI
R10
4K7
R9
4K7
RD
RS
CS WR
_SCL
SDI
SDO
#RE
SET
VDD
BLG
ND
BLV
DDBL
_Con
trol
MB
989
11
2.8
inch
LC
D bo
ard
supp
ort
eith
er S
PI o
r 16
-bit
para
llel
Bac
klig
ht dr
iver
& P
FC c
onne
ctor
for
LC
D pa
nel
Con
nect
or fo
r 16
-bit
para
llel a
pplic
atio
n
Con
nect
or fo
r S
PI s
eria
l app
licat
ion
mou
nt o
nly
for
SP
I app
licat
ion
Mou
nt o
nly
for
16-b
it ap
plic
atio
n
C6
100n
F
TP1
TP3
GND
VDD
Ena
ble
1
Dot
Clk
2
HS
YNC
3
VS
YNC
4
CS5
SCL
6
SDI
7
RS8
WR
9
RD10
RE
SET
11
PD0
12
PD1
13
PD2
14
PD3
15
PD4
16
PD5
17
PD6
18
PD7
19
PD8
20
PD9
21
PD10
22
PD11
23
PD12
24
PD13
25
PD14
26
PD15
27
PD16
28
PD17
29V
DD30
VCI
31
VCI
32
NC33
NC34
NC35
IM3
36IM
237
IM1
38IM
039
SDO
40
GND
41
LEDA
42
LED
K143
LED
K244
LED
K345
LED
K446
Y-47
X-48
Y+49
X+50
GND
51
CN3
MR
028-
51
WR
_SCL
R4
[N/A
]R11
[N/A
]
VDD
IM0
IM1
IM2
IM3
IM0
IM1
IM2
IM3
BLV
DD
XL XR YD YU
XRYD YUXL
CS1
RS2
WR
/SCL
3
RD4
RE
SET
5
VDD
24
VCI
25
GND
26
GND
27
BL_V
DD28
BL_C
ontro
l23
BL_G
ND22
PD1
6
PD2
7
PD3
8
PD4
9
PD5
10
PD6
11
PD7
12
PD8
13
PD10
14
PD11
15
PD12
16
PD13
17
PD14
18
PD15
19
PD16
20
PD17
21
SDO
29
SDI
30XL
31
XR32
YD33
YU34
CN2
16-b
it co
nnec
tor
CS1
SCL
2
SDI
3
RS4
WR
5
RD6
RE
SET
8
VDD
9
VCI
10
SDO
7
GND
11
GND
12
BL_V
DD13
BL_C
ontro
l14
BL_G
ND15
BL_G
ND16
XL17
XR18
YD19
YU20
CN1
SPI
con
nect
or
XR YD YUXL
BLG
ND
R10
WR
R20
SCL
R22
4K7
SCL
R23
4K7
CS
VDD
Mou
nt o
nly
for
16-b
it ap
plic
atio
n
mou
nt o
nly
for
SP
I app
licat
ion
R12
4K7
R13
4K7
R18
4K7
R19
4K7
R20
[N/A
]R21
[N/A
]
R14
75R
1575
R16
75R
1775
3
4 5
G
S D
1 2 6
T2 FDC
606P
R3
1K
R24
4K7
BL_C
ontro
l
BLV
DD
2
31
T1 9012
D
river
IC
I
nter
face
I
M[3
:0]
====
====
====
====
====
====
====
===
9325
SP
I
0
10(
D)
16-b
it
8347
G
SP
I
1
10(
D)
16-b
it
MR
E02
8-83
47G
-51P-
TP-A
MR
028-
9325
-51P
-TP-
A
STM32373C-EVAL pinout UM1564
60/66 Doc ID 023566 Rev 1
Appendix A STM32373C-EVAL pinout
Table 35. STM32373C-EVAL pinout
Pin no.
Pin name Description
1 PE2 TRACECLK / SPI3_CS_uSDcard
2 PE3 TRACED0 / uSDcard_Detect
3 PE4 TRACED1 /SHIELD
4 PE5 TRACED2 / SHIELD_CT
5 PE6-WKUP3 TRACED3 / WKUP_JOYSTICK_SEL
6 VBAT VBAT
7 PC13-TAMPER-WKUP2 -
8 PC14-OSC32_IN OSC32_IN
9 PC15-OSC32_OUT OSC32_OUT
10 PF9 JOYSTICK_RIGHT
11 PF10 JOYSTICK_UP
12 PF0 - OSC_IN OSC_IN
13 PF1 - OSC_OUT OSC_OUT
14 NRST NRST
15 PC0 LED1
16 PC1 LED2
17 PC2 LED3
18 PC3 LED4
19 PF2 JOYSTICK_DOWN
20 VSSA / SAR_VSS / SAR_VREF-
21 VDDA / SAR_VDD
22 SAR_VREF+
23 PA0 - WKUP1 WKUP_BUTTON / IDD
24 PA1 LDR_OUT
25 PA2 KEY_BUTTON
26 PA3 COM_IN+
27 PF4 JOYSTICK_LEFT
28 VDD_2
UM1564 STM32373C-EVAL pinout
Doc ID 023566 Rev 1 61/66
29 PA4 ADC_DAC_SAR1
30 PA5 ADC_DAC_SAR2
31 PA6 DAC2_OUT1_AUDIO / ECG_DAC
32 PA7 COMP2_OUT_LED
33 PC4 -
34 PC5 USB_DISCONNECT
35 PB0 MIC_IN
36 PB1 ADC_POT_IN
37 PB2 1.8V POR_RFU
38 PE7 RTD_IN
39 PE8 PRESSURE_P
40 PE9 PRESSURE_N
41 PE10 -
42 PE11 ADC_SD
43 PE12 ECG
44 PE13 -
45 PE14 PRESSURE_TEMPERATURE
46 PE15 -
47 PB10 -
48 SD_VREF-
49 SDADC1_SDADC2_SDADC3_VSS
50 SDADC1_SDADC2_VDD
51 SDADC3_VDD
52 SD_VREF+
53 PB14 -
54 PB15 -
55 PD8 -
56 PD9 -
57 PD10 -
58 PD11 AUDIO_RST
59 PD12 SLIDER_1
60 PD13 SLIDER_2
Table 35. STM32373C-EVAL pinout (continued)
Pin no.
Pin name Description
STM32373C-EVAL pinout UM1564
62/66 Doc ID 023566 Rev 1
61 PD14 SLIDER_3
62 PD15 SLIDER_CT
63 PC6 I2S_WS
64 PC7 I2S_CK
65 PC8 I2S_MCK
66 PC9 I2S_DIN
67 PA8 I2C2_SMB
68 PA9 I2C2_SCL
69 PA10 I2C2_SDA
70 PA11 USB_DM
71 PA12 USB_DP
72 PA13 SWDAT/JTMS
73 PF6 -
74 VSS_3
75 VDD_3
76 PA14 SWCLK/JTCK
77 PA15 JTDI
78 PC10 SPI3_SCK
79 PC11 SPI3_MISO
80 PC12 SPI3_MOSI
81 PD0 CAN_RX
82 PD1 CAN_TX
83 PD2 LCD_CS
84 PD3 USART2_CTS
85 PD4 USART2_RTS
86 PD5 USART2_TX/ IRDA
87 PD6 USART2_RX/ IRDA
88 PD7 HDMI_HPD_SOURCE
89 PB3 JTDO/TRACESWO
90 PB4 JNTRST
91 PB5 IR_IN
92 PB6 I2C1_SCL
93 PB7 I2C1_SDA
94 BOOT0 BOOT0
Table 35. STM32373C-EVAL pinout (continued)
Pin no.
Pin name Description
UM1564 STM32373C-EVAL pinout
Doc ID 023566 Rev 1 63/66
95 PB8 CEC
96 PB9 IR-Out_LED
97 PE0 HDMI_HPD_SINK
98 PE1 -
99 VSS_1
100 VDD_1
Table 35. STM32373C-EVAL pinout (continued)
Pin no.
Pin name Description
Mechanical dimensions UM1564
64/66 Doc ID 023566 Rev 1
Appendix B Mechanical dimensions
Figure 38. STM32373C mechanical dimensions
Table 36. STM32373C mechanical dimensions
Symbol Size (mm) Symbol Size (mm) Symbol Size (mm)
A 68.58 e 81.28 P1 27.305
a1 2.54 H 11 P2 110.49
a2 2.54 Lx 5.715 Q1 24.13
B 47 Ly 5.715 Q2 15.875
D 3.5 Mx 17.145 X 114.3
d 3.2 My 18.415 Y 172.72
UM1564 Revision history
Doc ID 023566 Rev 1 65/66
5 Revision history
Table 37. Document revision history
Date Revision Changes
11-Sep-2012 1 Initial release.
UM1564
66/66 Doc ID 023566 Rev 1
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