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IntroductionThe solution is designed for IO-Link communication in factory automation systems.
The system lets you implement P2P communication based on a physical IO-Link layer, using the STEVAL-IDP004V2 as themaster node and the STEVAL-IDP003V1 as the device node.
With these, you can address various scenarios:• remote machine monitoring for predictive maintenance or diagnostics (vibration analysis or temperature evaluation close to
machine bearings)• environment monitoring (humidity check, temperature check, pressure check and so on)• production line monitoring (object proximity, acceleration monitoring)
The IO-Link physical layer is implemented using the L6360 and L6362A ST IO-Link transceivers representing the master nodeIC and device node IC, respectively. Both of these are soldered on dedicated microcontroller boards, creating a network node.
In this solution, the STEVAL-IDP004V2 represents an IO-Link master hub, capable of hosting up to four end nodessimultaneously. The end nodes are the industrial sensor evaluation boards here represented by the STEVAL-IDP003V1.
The physical connection between these two parts is achieved with industrial M12 connectors, with different pinouts for masterand device network nodes, as established by the IO-Link standard. Electrical connection is implemented via a typical three polecable, not shielded, with one wire used for communication and two wires for supply voltage.
Further flexibility is provided in the form of communication interfaces (RS-485, CAN and USB) on the STEVAL-IDP004V2 thatcan be used for data exchange with additional units (i.e., PLC or HMI), and with multiple sensor connections on the STEVAL-IDP003V1.
Note: The only difference between the STEVAL-IDP004V1 and the STEVAL-IDP004V2 is that in the latter the IO-Linkstack has been embedded on the on-board STM32. The protocol stack is provided by TEConcept GmbH andcomes with some limitations, as detailed further on.
Figure 1. STEVAL-IDP004V2 master evaluation board
Note: The STEVAL-BFA001V2B is also supported as end node, using the IO-Link stack or the STSW-IO-LINK masterfirmware version. The master firmware allows data visualization and power spectrum plot on PC, using thegraphical user interface available in the STSW-BFA001V2 software package.
IO-Link solution based on STEVAL-IDP004V2 master evaluation board and STEVAL-IDP003V1 kit
AN5041
Application note
AN5041 - Rev 5 - October 2020For further information contact your local STMicroelectronics sales office.
www.st.com
Figure 2. STEVAL-IDP003V1 kit
Note: All the topics described in this document are valid also for the STEVAL-IDP004V1 master evaluation board,except for the IO-Link stack section.
AN5041
AN5041 - Rev 5 page 2/60
1 Hardware description
1.1 STEVAL-IDP004V2 master hub overview
The STEVAL-IDP004V2 is designed to represent a complete master unit with several communication interfaceslike IO-Link, RS-485, CAN and USB.L6360 transceivers have two different voltage reference: one on the VCC pin with a 18 to 32V voltage range; thesecond one on the VH pin which can be supplied via a DC-DC converter in buck configuration or via the main VCCsupply.The other interface are supplied as follows: RS-485 and CAN interfaces are supplied using the 3.3 V generatedby the L6360 ICs, whereas the USB is supplied using the 5 V on the connector, since the peripheral works inslave mode and it is managed through a microcontroller interface based on the STM32F205RBT7 ARM® Cortex®-M3.As this board is designed to work in industrial applications, extra care has been taken in layout routing andprotections implemented to improve robustness in terms of EMC compliance.
Figure 3. STEVAL-IDP004V2 functional blocks
ST-Link programmerRS-485 CAN
USB
IO-LinkPorts
Supply voltage and protection
Power management
IO-LinkPorts
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AN5041 - Rev 5 page 3/60
Figure 4. STEVAL-IDP004V2 block diagram
Power managementand protections
UARTup to 230 kb
Supply voltage 18 to 32 V
L6360IO-LinkMaster
Transceiver
USBinterface
RS485interface
CANinterface
5V, 8V
STM32F2
UARTup to 230 kb
UARTup to 230 kb
UARTup to 230 kb
L6360IO-LinkMaster
Transceiver
L6360IO-LinkMaster
Transceiver
L6360IO-LinkMaster
Transceiver
1.1.1 Power management and protectionThe input stage is designed to adhere to the 18 to 32 V voltage range required by the standard.The supply voltage is provided to the board via screw connector CON1 and stepped-down by the DC-DCconverter to a lower voltage reference. The switching converters is the L7986A switching regulator IC, used toscale the main supply voltage to 8 V with a current capability of 400 mA (voltage reference used for VH input pinof L6360).Furthermore, to improve the robustness on the supply line, the SM15T33CA Transil offers surge protection andthe STPS1H100A power Schottky rectifier provides reverse polarity protection.
Figure 5. STEVAL-IDP004V2 power management schematic
1
C37
R127
0R
CO
MP
4
R128
0R D29STPS1L40
EMC test only -do not mount TP1
Ground
OUT 1VCC8
D21SM15T33CA
VH_C
ON
36V max
EARTH
C79
15µF/16V
Vcc
L-_M1
R12511k
FB5
D28STPS1H100A
2
Fsw
6
C78
22nF/16V
1
L-_M2
R126383R
C76
82pF/16V
EN3
GN
D2
9
L-_M0
GN
D1
7
L4
1.2mH 1ohm 400mA
R1244.7k
C80
220nF/50V
C752.2uF/50V
U1 L7986A
RS:533-0609KEMET PME295RB4470MR30
Not MountedNot Mounted
Not Mounted
8V
R15343R
4.7n
F 4k
V
Vcc
CON1
Main Voltage
TP1
EMC TEST
4.7n
F 4k
V
SYNCH2
L-_M3
C77
18nF/16V
Vcc
C38
1.1.2 RS-485, USB and CAN interfaceSeveral on-board interface modules can be used to interface with a PC or other control units. The PC interface isrealized via the USB and RS-485 communication protocols: the USB and the RS-485 are used to handle adedicated set of commands via PC to manage IO-Link IC configuration and remote sensor monitoring through theIO-Link physical layer.The interface with the other communication bus is implemented using the CAN transceiver.
AN5041STEVAL-IDP004V2 master hub overview
AN5041 - Rev 5 page 4/60
Figure 6. RS-485, USB and CAN interface
8
R12060,4R
R1761.5KMH1
R18010K
R167100k
5V
2
CAN_SHDN
2
RS
8
CAN_RX
4
MH2
R183500R
4
R181
10K
1
R12160,4R
7
DE3
CANLTXD
1
Common Mode ChokeACT45B-101-2PTDK
2
ID4
C7410nF/10V
1
C83
47pF/10V
DI4
TP9 TP8
L1
CHOKE CM
ST3485RE
2GND
5
R146120R
J5CONN USB
3
Vdd
C108100nF/10V
8
GND5
CAN_RS
R182
0R
R1660R
RXD4
1
CANH
CANH
CANLGNDCANL
CANH
C8447pF/10V
VBUS1
5
MH
2
3
5V
2
1
Vdd
3
BUS_IND_RX
DM2
Vdd
GND2
ST3485DE
CN1
RS485
A6
MH
1
USB_DP
R148
N.M.
4CANL
6
CAN
CO
NN
ECTO
R
U4
ST3485EI
P1
R147
0R
BUS_IND_TX
1
VCC3
9
6
CAN_TX
USB_DM
B7
1
5CANH
7
RO1
7R17536K
Q1BC848C
1
R1650R
R184500R
U9MAX3051
Vcc8
USER_Vbus
9
R17410K
RE
6
D31ESDCAN24
2
DP3
SHDN5
Vdd
1.1.3 Master IO-Link portsThe IO-Link interface consists of four L6360 master ICs, each of them protected against surge discharge with STTransil SPT01-335DEE and interfaced on the IO-Link bus through a 5-pin M12 female connector, as required bythe standard.
1.1.3.1 IO-Link transceiver IC descriptionThe L6360 programmable transceiver features:1. integrated I²C serial peripheral and register for IC configuration2. output stage to support IO-Link protocol timing, designed with several integrated protections against failure
events (short-circuit, overtemperature)3. output power stage with 500 mA maximum current capability, to power the slave node4. two receiver input stages:
– one connected to an IO-Link bus through an M12 connector– one available for other IO-Link bus connections
5. digital input pin ENL+ to handle L+ output power stage activation to provide supply voltage to slave node,device reset pin to reset the IC to default configuration, ENCQ digital pin to enable the IC in receiver ortransmitter mode, and an IRQ latched interrupt pin
6. other digital input/output pins to manage I²C and IO-Link communicationThis transceiver has embedded registers to configure different IC settings:• output stage configurability (Push-Pull, High-Side, Low-Side)• output current limitation threshold protection and delay protection activation on IO-Link line• pull-down current generator on IO-Link line• de-bounce time in receive mode according to communication speed• LED registers to signal malfunction, communication status and IC status through different programming
settings
The configuration is performed with the integrated I²C peripheral, according to the write operating mode providedin the I²C protocol section in the datasheet.1. The configuration example sets the output stage in the Configuration register to push-pull configuration2. Set the cut-off protection threshold in the Control1 register to 580 mA3. Set the cut-off delay time in the Control1 register to 250 µs4. Set de-bounce time in the Control1 register to the communication speed
AN5041STEVAL-IDP004V2 master hub overview
AN5041 - Rev 5 page 5/60
Following configuration, the ENCQ pin must be driven to enable communication transmission and reception. Toenable transmission, the pin must be set to the high level, while to enable the receiver, the pin is set to the lowlevel.Once the transmitter or receiver stages are enabled, communication between master and device node can bemanaged by driving the UART inputs pin (INCQ and OUTCQ).If some fault condition is detected during communication, the IRQ pin is activated.
1.1.4 Connectors
Table 1. Connectors
Part value Part description Pin Name Description
CON1 Main supply voltage1 Negative pole Ground supply voltage
2 Positive pole Supply voltage
J4 ST-Link Programmer
1, 2 VDD Ground Serial Data Reset
3, 4, 6, 8, 10, 12, 14, 16, 18, 20 GND Ground
5, 11, 13, 17, 19 NC Not connected
7 SWDIO Serial data
9 SWCLK Serial clock
15 NRST Reset
J5 USB connector
1 5V Input supply
2 DM USB DM
3 DP USB DP
4 ID Pull down connected
5 GND Ground
CN1 DB9 RS-485 connector
1, 4 B RS-485 inverted signal
2, 8 A RS-485 not inverted signal
3, 5 GND Ground
6, 7, 9 NC Not connected
CN2 DB9 CAN connector
1, 4, 8 NC Not connected
2 CANL CAN bus line low
3, 6 GND Ground
7 CANH CAN bus line high
9 VDD Voltage reference N.C
JR1, JR2, J3, J4 M12 IO-Link connector
1 L+ Device board supply
2 IQ Second bus line
3 L- Device board ground
4 CQ IO-Link bus line
5 NC Not connected
AN5041STEVAL-IDP004V2 master hub overview
AN5041 - Rev 5 page 6/60
Figure 7. STEVAL-IDP004V2 connector drawings162738495
P1
CAN connector
5GND
J5
4ID
VBUSDM
21
3DP
USB connector
JR3
4
Master_M1
2
1
5
3
IO-Link connector
162738495
CN1
MH1MH2
RS485 connector
1
2Main Voltage
CON1Main supply voltage
connector
16
10
4
18
65
17
8
1214
15
7
1
20
9
J4
13
3
STLink/V2
19
2
11
Programmer connector
1.2 STEVAL-IDP003V1 kit overview
The STEVAL-IDP003V1 kit consists of:1. STEVAL-IDP003V1D device board based on L6362A IO-Link PHY with small form factor for easy insertion in
the M12 connector2. STEVAL-IDP003V1A sensor board based on accelerometer MEMS sensor IIS328DQ3. STEVAL-IDP003V1V sensor board based on accelerometer MEMS sensor IIS2DH4. STEVAL-IDP003V1T sensor board based on temperature sensor STTS7515. STEVAL-IDP003V1P sensor board based on proximity sensor VL6180XThe device boards and sensor boards are equipped with a small 1.27 mm pitch connector to reduce PCB area.
Figure 8. STEVAL-IDP003V1 block diagram
VL6180X
UART up to 230kb
Power management
C 400kHz2
Supply voltage 18 to 32V I
3.3V
STM32L0
L6362A
DeviceTransceiverfor IO-Link
and SIO mode
IIS2DH
IIS328DQ
STTS751
STEVAL-IDP003V1DSTEVAL-IDP003V1P
STEVAL-IDP003V1T
STEVAL-IDP003V1A
STEVAL-IDP003V1V
1.2.1 STEVAL-IDP003V1D evaluation boardThis board contains an L6362A IO-Link device transceiver to interface the sensors on the bus. It also implementspower stage circuitry to generate 3.3 V voltage reference for microcontroller and sensors, using a DC-DCconverter in buck configuration and a low drop voltage regulator.The communication on the IO-Link bus and the communication with sensors are handled by the STM32L071CZYmicrocontroller via the USART and I²C peripherals, respectively.
AN5041STEVAL-IDP003V1 kit overview
AN5041 - Rev 5 page 7/60
The board features:1. layout routing to improve robustness against EMC stress and minimize board size2. connection on IO-Link bus in compliance with standard requirements in terms of connector pinout for device
board3. connection with sensor board using small 1.27 mm pitch connector for improved interfacing flexibility with
different sensors.
Figure 9. STEVAL- IDP003V1D main components
Sensor board STM32L071CZ
ST-LINKprogrammer
IO-Link port
Power management1.2.2 Power management
The IO-Link specification requires that the sensor unit either be supplied directly on sensor side by battery or viathe master node using the L+ line from the master IC.The STEVAL-IDP003V1D is supplied by the master IO-Link node through the L+ line. Therefore, to obtain a lowerreference voltage for the microcontroller, LED and sensors, the power management system has been designed toreduce the 18 to 32 V main supply voltage reference required by the standard down to 3.3 V.The reduction is achieved using an L7986 DC-DC converter (to reduce the main down to 8 V) with an LDFPURlow drop voltage regulator in series (to reduce the 8 V down to 3.3 V). The 3.3 V (3v3-Ext voltage reference)voltage reference is used for on-board LED signaling and when it is needed, in place of the default microcontrollerand sensor supply voltage provided by the L6362A internal voltage regulator.To replace the voltage supply provided by the L6362A, resistor R43 must be replaced by the series R35 (0R) andR25 (100 kΩ resistor)
AN5041STEVAL-IDP003V1 kit overview
AN5041 - Rev 5 page 8/60
Figure 10. STEVAL-IDP003V1D power management schematic (1 of 3) - DC-DC converter
VDFPN 10
L7986TR
1OUT1
Fsw
7R4360R
2
FB6
10VCC1
L1470µH
2.2µF 50V
C6
18nF 16V
5.6k
R143R
3
EX_P
AD11
SYNCH
EN4
D1
22nF 16V
C1
GN
D8
CO
MP
OUT2
VCC2Vcc
8V
9
R3
C5
R24k7
220nF 50V
C2
C3
5
82pF 16V
22µF 10V
U1
C4
Figure 11. STEVAL-IDP003V1D power management schematic (2 of 3) - linear regulator
4GND
7
VDFPN 6 1µF 16V
3v3-Ext
C192
ADJ
8V
R2731.6k 1%
LDFPUR
2.2µF 10V
3v3
EN5
R35Vin6
C18
R2810k 1%
0 RVout
1
U5
PG3
GN
D2
AN5041STEVAL-IDP003V1 kit overview
AN5041 - Rev 5 page 9/60
Figure 12. STEVAL-IDP003V1D power management schematic (3 of 3) - IO-Link transceiver
U3
L6362A
Vdd1
4
IN1
R170
IN2
12R25
47nF 10V
3v3-IC
SEL8
EN/DIAG5
100K N.M.
R43
11
9
10pF 10V
C14 3v3
EN/DIAG
2
3OUTH
R24
Vcc
C31
OUT/IQ
OL6
3v3
OUTL
IQ10
GND
0 N.M.
7
Vcc
N.M.
1.2.3 Device IO-Link portThe IO-Link interface consists of an L6362A IC connected to the IO-Link bus using the M12 4-pole maleconnector, as required by the standard.
1.2.4 IO-Link transceiver descriptionThe programmable transceiver features:1. configurable output stage (Push-Pull, High-Side, Low-Side)2. configurable output voltage regulator3. wake-up request detection4. integrated protection like short-circuit, overtemperature5. digital input/output ENDIAG pin to signal fault events6. overload signalingThe output stage configuration and output voltage reference can be managed by hardware or firmware by simplyconfiguring a fixed digital value on the IN1, IN2 and SEL pins. This setting modify the output stage configurationdriving (Push-Pull, High-Side, Low-Side), IO-Link bus signal polarity (signal Inverted or not) managing the IN1 andIN2 pin and the output voltage reference provided on VDD pin managing the SEL pin to suit applicationrequirements.On the STEVAL-IDP003V1, the IC bus interface is configured to have:1. power stage in output push-pull2. output signal polarity on IO-Link bus inverted3. SEL pin to GND to provide 3.3 voltage reference4. ENDIAG pin connected to pull-up5. OL pin connected to pull-upOnce the IC is configured, data exchange with the master unit is a matter of managing serial communication viapin IN2 for transmission and pin OUTI/Q for reception. If a fault condition is detected during communication, theENDIAG pin and/or the OL pin is activated and an interrupt is generated.
AN5041STEVAL-IDP003V1 kit overview
AN5041 - Rev 5 page 10/60
1.2.5 Sensor boardsThe STEVAL-IDP003V1D can be interfaced with different sensors through a small 1.27 mm pitch connector.These small sensor boards host different kinds of sensors:• IIS328DQ accelerometer MEMS sensor (STEVAL-IDP003V1A)• VL6180X ToF proximity sensor (STEVAL-IDP003V1P)• STTS751 temperature sensor (STEVAL-IDP003V1T)• IIS2DH vibration MEMS sensor (STEVAL-IDP003V1V)
All of the above sensors exchange data with the sensor node via the I²C peripheral.Also in this case, the layout routing is optimized to meet EMC testing requirements.
Figure 13. Sensor daughter boards
1.2.5.1 Sensor descriptionVL6180X (on the STEVAL-IDP003V1P) :The VL6180X is the latest product based on ST’s patented FlightSense™ technology. This is a ground-breakingtechnology allowing absolute distance to be measured independent of target reflectance. Instead of estimating thedistance by measuring the amount of light reflected back from the object (which is significantly influenced by colorand surface), the VL6180X precisely measures the time the light takes to travel to the nearest object and reflectback to the sensor (Time-of-Flight). Combining an IR emitter, a range sensor and an ambient light sensor in athree-in-one ready-to-use reflowable package, the VL6180X is easy to integrate and saves the end-product makerlong and costly optical and mechanical design optimizations. The module is designed for low power operation.Ranging and ALS measurements can be automatically performed at user defined intervals. Multiple threshold andinterrupt schemes are supported to minimize host operations. Host control and result reading is performed usingan I²C interface. Optional additional functions, such as measurement ready and threshold interrupts, are providedby two programmable GPIO pins.STTS751 (on the STEVAL-IDP003V1T):The STTS751 is a digital temperature sensor which communicates over a 2-wire SMBus 2.0 compatible bus. Thetemperature is measured with a user-configurable resolution between 9 and 12 bits. At 9 bits, the smallest stepsize is 0.5 °C, while at 12 bits, it is 0.0625 °C. At the default resolution (10 bits, 0.25 °C/LSB), the conversion timeis nominally 21 milliseconds. The open-drain EVENT output is used to indicate an alarm condition in which themeasured temperature has exceeded the user-programmed high limit or fallen below the low limit.When the EVENT pin is asserted, the host can respond using the SMBus Alert Response Address (ARA) protocolto which the STTS751 will respond by sending its slave address. The STTS751 is a 6-pin device that supportsuser-configurable slave addresses. Via the pull-up resistor on the Addr/Therm pin, one of four different slaveaddresses can be specified. Two order numbers (STTS751-0 and STTS751-1) provide two different sets of slaveaddresses bringing the total available to eight. Thus, up to eight devices can share the same 2-wire SMBuswithout ambiguity, thereby allowing monitoring of multiple temperature zones in an application.
AN5041STEVAL-IDP003V1 kit overview
AN5041 - Rev 5 page 11/60
IIS2DH (on the STEVAL-IDP003V1V):The IIS2DH is an ultra-low-power high performance three-axis linear accelerometer with digital I2C/SPI serialinterface standard output. The IIS2DH has user-selectable full scales of 2g/±4g/±8g/±16g and is capable ofmeasuring accelerations with output data rates from 1 Hz to 5.3 kHz. The device may be configured to generateinterrupt signals by two independent inertial wake-up/free-fall events as well as by the position of the device itself.The self-test capability allows the user to check the functionality of the sensor in the final application.IIS328DQ (on the STEVAL-IDP003V1A) :The IIS328DQ is an ultra-low-power high performance 3-axis linear accelerometer with a digital serial interface,SPI or I²C compatible. Recommended for industrial applications requiring an extended temperature range andlong lifespan, the device features ultra-low-power operational modes that allow advanced power saving and smartsleep-to-wakeup functions. The IIS328DQ has dynamic user-selectable full-scales of ±2g/±4g/±8g and is capableof measuring accelerations with output data rates from 0.5 Hz to 1 kHz. The self-test capability allows the user tocheck the functioning of the sensor in the final application. The device may be configured to generate an interruptsignal through inertial wakeup events, or by the position of the device itself. Interrupt generators areprogrammable by the end user on-the-fly.
1.2.6 Connectors
Table 2. Connector details
Part value Part description PIN Pin name Pin description
JP1 IO-Link Connector
1 VCC Supply voltage
2 NC Not connected
3 GND Ground
4 OUTH/OUTL IO-Link Bus
J2 Sensor Connector
1, 2 GND Ground
3, 4 3v3 Supply voltage
5, 6 I2C_SCL I2C clock
7, 8 I2C_SDA I2C data
9, 10 Interrupt Sensor interrupt
J1 Programmer connector
1 3v3 Supply voltage
2 GND Ground
3 SWDIO SW data
4 SWCLK SW clock
5 NRST Reset
AN5041STEVAL-IDP003V1 kit overview
AN5041 - Rev 5 page 12/60
Figure 14. STEVAL-IDP003V1D connector drawings
JP1
2CONN AV 4-J
4
1 3
IO-Link connector
10
46587
1
9
J2
32
Sensor connectorCON10A
43
1J1
25
Programmer connectorCON5
AN5041STEVAL-IDP003V1 kit overview
AN5041 - Rev 5 page 13/60
2 EMC test
This IO-Link system has been built following the requirements coming from the factory automation, some testshave been performed to verify the robustness against stress events occurring during its normal life cycle.Tests for electromagnetic compatibility as per IEC61000-4-2/4 and EN60947-5-2 are performed with respect to:• IEC61000-4-2 ESD robustness• IEC61000-4-4 Burst robustness• EN60947-5-2 Surge robustness
Power is supplied through the L+ line on the STEVAL-IDP004V2 and the microcontroller on the STEVAL-IDP003V1D is set to perform continuous sensor data sampling.After testing, system functionality is verified through a complete STEVAL-IDP004V2 and STEVAL-IDP003V1parameter request routine.
2.1 Burst test
Test setup:• Burst Generator: UCS 500 N• Coupling: 150 pF• Spacer: 100 mm• Supply voltage: 2x 12 V lead battery decoupled with 1mH inductor• EUT1: STEVAL-IDP003V1• EUT2: STEVAL-IDP004V2
Figure 15. Burst test setup
Burst generator
Ground plane
Metal plane
Burst coupling
SpacerEUT1 EUT224V battery
Test results: test successfully performed at ± 4 kV with criteria B.
AN5041EMC test
AN5041 - Rev 5 page 14/60
2.2 Surge test in differential mode
Test setup:• Surge generator: UCS 500N• Coupling: 500 Ω + 18 µF• Spacer: 100 mmS• Supply voltage: 2x 12 V lead battery decoupled with 1 mH inductor• EUT1: STEVAL-IDP003V1• EUT2: STEVAL-IDP004V2
Figure 16. Surge test setup
Surge generator
Ground plane
Metal plane
CouplingSpacer
EUT1
EUT224V battery
Spacer
Test results: test successfully performed at ± 1.2 kV with criteria A.
2.3 ESD test in contact discharge
Test setup:• ESD Generator: ESD 30N• Coupling: 330 Ω + 150 pF• Spacer: 100 mm• Spacer 1: 30 mm• Supply voltage: 2x 12 V lead battery decoupled with 1 mH inductor• EUT1: STEVAL-IDP003V1• EUT2: STEVAL-IDP004V2
AN5041Surge test in differential mode
AN5041 - Rev 5 page 15/60
Figure 17. ESD test setup
Surge generator
Ground plane
Metal plane
Spacer
EUT1
EUT2
Spacer
24V battery
Coupling network
Spacer 1
Test results: test successfully performed at ± 4 kV with criteria B.
AN5041ESD test in contact discharge
AN5041 - Rev 5 page 16/60
3 Firmware description
The IO-Link evaluation kit is supported by two different firmware packages.Both packages are useful to handle STEVAL-IDP004V2 to STEVAL-IDP003V1 communication and PC interface.The first firmware package (STSW-IO-LINK) is based on a customized protocol developed by STMicroelectronics,whereas the second one is based on IO-Link stack plus a dedicated protocol for PC interface, both developed byTEConcept GmbH.
3.1 STSW-IO-LINK firmware package description
This solution consists of a complete firmware package released for the STEVAL-IDP003V1 and the STEVAL-IDP004V2 master board to facilitate system configuration as well as system data exchange and processing. It isbased on the STM32Cube HAL library and was developed with the STM32CubeMX tool to help configure themicrocontroller in each part and update the created workspace without any data loss.The firmware includes the following functional blocks:1. PC and system configuration with the RS-485 interface2. Master-device communication using a customized protocol to exchange data between STEVAL-IDP004V2
and STEVAL-IDP003V13. Sensor data management to exchange data with sensors (STEVAL-IDP003V1T, STEVAL-IDP003V1V,
STEVAL-IDP003V1A, STEVAL-IDP003V1P) and process it on the device board (STEVAL-IDP003V1D), inparticular for vibration monitoring based on IIS2DH accelerometer MEMS sensor.
The first two points have been implemented with simple command declarations that allow configuration (e.g.,STEVAL-IDP004V2 L6360 configuration) and data exchange between the master (STEVAL-IDP004V2) anddevice (STEVAL-IDP003V1) nodes.The third point involves data acquisition routines running on the STEVAL-IDP003V1D board through I²C interfaceand subsequent processing. For vibration monitoring, dedicated routines for data processing using the DSP_Libto perform FFT calculation have been implemented to calculate the vibration power spectrum.
3.1.1 STEVAL-IDP004V2 evaluation firmware descriptionThis firmware package manages RS-485/USB communication with a PC for STEVAL-IDP004V2 configuration anddata exchange between the STEVAL-IDP004V2 and STEVAL-IDP003V1 through the IO-Link physical layer.The following source files are included:1. PC_Communication_RS485: with all the routines needed to manage command decoding and data
exchange between the STEVAL-IDP004V2 and the PC2. PC_Communication_USB: with all the routines needed to manage command decoding and data exchange
between the STEVAL-IDP004V2 and the PC3. Master_Settings.c: with the routines needed to configure all the L6360 ICs on the STEVAL-IDP004V2
master board4. Master_DeviceCOMM.c: with all the routines used to exchange data between the STEVAL-IDP004V2
master board and the STEVAL-IDP003V1 sensor board.
AN5041Firmware description
AN5041 - Rev 5 page 17/60
Figure 18. STEVAL-IDP004V2 evaluation firmware project related to RS-485 implementation
At start-up, the master board is in the receiving state, waiting for a command sent by the user.Following a START command, communication with master board is established and the STEVAL-IDP004V2 startsto interact with user, prompting for input regarding which board (master or device) to select.Master board (STEVAL-IDP004V2) selectedIn this case, the firmware prompts for:1. address of the master IC2. operating mode ( Current Write, Current Read, Sequential Write, Sequential/Random Read); based on the
selection, further specific information like register addresses and values are requestedIf the programming mode is completed correctly, the message “Programming Done” or “Reading Done" isreturned.Once one or all the on-board L6360 devices are programmed, you can stop the configuration phase with“COMMAND END” command and query the STEVAL-IDP003V1 regarding the connected sensor with the “IDS”command to a particular node, and measured parameters with the “PRM” command.The parameter value returned depends on which kind of sensor is connected to the device board (STEVAL-IDP003V1D):• for the ToF VL6180X (STEVAL-IDP003V1P) sensor: distance from an object• for the STTS751 (STEVAL-IDP003V1T) sensor: temperature in Celsius degrees• for the accelerometer MEMS sensors:
– for the IIS328DQ (STEVAL-IDP003V1A): acceleration for each axis in ‘mg’– for the IIS2DH (STEVAL-IDP003V1V): vibration for each axis in m/s²
Once again you can stop communication with a sensor with “COMMAND END” or continue to query the samesensor with the “COMMAND NEW" command.Device Node (STEVAL-IDP003V1) selectedIn this case, the firmware prompts for the address of the related master IC:• if the node is not programmed, the firmware will switch to the "Master board (STEVAL-IDP004V2) selected"
routine, prompting the master node be requested before communication with the sensor.• if the node is programmed, you can begin interacting with the sensor node to identify the connected sensor
and receive measured parameter data.
3.1.2
For more details about the commands implemented to manage communication, please refer to the firmware data brief.
STEVAL-IDP003V1 evaluation firmware descriptionThis firmware package manages communication through the IO-Link physical layer between the master node(STEVAL-IDP004V2) and sensor node (STEVAL-IDP003V1), as well as data exchange with the sensor board and subsequent processing.
AN5041STSW-IO-LINK firmware package description
AN5041 - Rev 5 page 18/60
The following source files are included:1. FFT.c: with routines to perform vibration analysis with the MEMS IIS2DH sensor2. Sensor.c: with routines for sensor configuration and data acquisition3. Master_DeviceCOMM.c: with routines used to exchange data between the STEVAL-IDP004V2 master
board and the STEVAL-IDP003V1 sensor board.
Figure 19. STEVAL-IDP003V1 evaluation firmware project
AN5041STSW-IO-LINK firmware package description
AN5041 - Rev 5 page 19/60
At start-up, the sensor board runs two processes in parallel:• the first one keeps the sensor board on the IO-Link bus ready for a remote command• the second one handles the sensor configuration and data acquisition as follows:
1. after turn-on, the microcontroller proceeds with sensor configuration2. if it is completed correctly the “status_sensor” variable is changed from RESET to CONNECTED,
otherwise it is changed to NOT CONNECTED3. if configuration ends correctly, the microcontroller continues with different data acquisition flows based
on the connected sensor, as per the following list• Temperature sensor STTS751 and MEMS IIS328DQ: parameter values are continuously updated in the
corresponding structure.• Proximity sensor ToF VL6180X: a remote command is requested to start the acquisition for a time slot
defined by the variable STTPRX_MAX_SAMPLES in Sensor.h, when the acquisition is completed, theresults are averaged and the updated structure is returned to the master.
• MEMS IIS2DH: this sensor is used for vibration monitoring through the continuous acquisition on interruptevent of each acceleration value of each accelerometer axis. When the number of samples acquired is equalto the value fixed by the defined variable FFT_SIZE in FFT.h, acquisition for that axis is stopped. The data isconverted in m/s² and processed with dedicated routines in FFT.c. These routines implement the DSP libraryin the HAL library package to calculate the Fast Fourier Transform and evaluate vibration frequency andamplitude for each axis. The main routines used for vibration evaluation arearm_rfft_fast_f32()arm_cmplx_mag_f32(); and arm_max_f32().
These functions take the sample input vectors and the FFT size setting to obtain an output vector with the indexposition in the array representing the ‘bin’ of a frequency value and the value stored at the same index positionrepresenting the amplitude of the corresponding frequency.Once the output FFT vector has been obtained, the function arm_max_f32() extracts the maximum value andcorresponding index and, using the reverse formula of the bin calculation: the input frequency is obtained whenSamplingFreq is equal to accelerometer ODR.
3.2 Firmware package with IO-Link stack implementation
3.2.1 Firmware package for STEVAL-IDP004V2This firmware package with IO-Link stack is available only in a compiled version which is preloaded in themicrocontroller with level 1 readout protection (you can also download your own firmware into the microcontroller).The stack embeds two different communication interfaces with host unit, USB and RS485.The version is fully featured with time limitation (10000 minutes): after this time expires, the system stops workingand a new license is necessary to run the system again. To get the new free license, it is necessary to contact thestack provider (TEConcept GmbH) and provide them the hardware ID which can be read using the Control Tool, aGUI developed by the same provider.Data transmission between master and device node is managed using the Process Data features as written in theIO-Link stack standard.Data received by the master are shown on the host processor using the Control Tool allowing data visualizationand plotting: page format changes according to the information reported in the IODD file.For the STEVAL-IDP004V2, four different IODDs have been released to show the data received by each sensornode, connected to the board (for further details, refer to UM2232 on www.st.com).Data shown are:• distance• temperature• inclination• vibration (frequency and amplitude)
3.2.2 Firmware package for STEVAL-IDP003V1This package integrates the IO-Link stack library developed by TEConcept within the IO-Link consortium.The stack is provided in a compiled version (iol_ds_as_lib.a) and with customizable APIs available in the headerfile (iold_api.h).
AN5041Firmware package with IO-Link stack implementation
AN5041 - Rev 5 page 20/60
The stack code embedded is limited in execution time and features. Time limitation prevents stack use for more than 180 minutes; when this time expires, a hardware reset is necessary to restart the application. Feature limitation, instead, is related to missed implementation of sensor data storage, block transfer and BLOB.The firmware architecture is based on the STM32Cube Ecosystem guidelines with an Application layer, a Middleware layer, a Drivers layer including BSP (board support package) and a HAL driver library.
Figure 20. STEVAL-IDP003V1 stack architecture
AN5041Firmware package with IO-Link stack implementation
AN5041 - Rev 5 page 21/60
4 Functionality test with customized protocol
To perform a typical application test:1. Connect each STEVAL-IDP004V2 IO-Link port to a STEVAL-IDP003V1D sensor node2. Provide DC supply voltage in the range of 19 to 32 V through the STEVAL-IDP004V2 CON1 connector3. Connect the ST-LINK/V2 programmer to the board J4 20-pin connector using the flat cable4. Flash the STEVAL-IDP004V2-RS485.hex file in the microcontroller using the STM32 ST-LINK Utility5. Connect the ST-LINK/V2 to the J1 connector with an adapter to the STEVAL-IDP003V16. Flash the firmware related to the sensor connected on board using STM32 ST-LINK Utility7. Remove the programmer and reset the STEVAL-IDP004V2If the STEVAL-IDP004V2 green LED starts blinking and the STEVAL-IDP003V1 green LED is ON or blinking, thekit is working properly.After microcontroller programming, you can use a HyperTerminal (or Tera Term) interface to interact with thehardware, performing Read/Write operations on the L6360 ICs or, after L6360 programming, send commands tothe STEVAL-IDP003V1 to identify the connected sensor and the measured parameter.
4.1 Microcontroller programming procedure
The programming procedure can be performed with the STM32 ST-LINK Utility programming tool.After the ST-LINK/V2 programmer has been connected to the STEVAL-IDP004V2 J4 connector:1. Open the tool and press the toolbar connection button. The microcontroller memory first reading results
should appear.
Figure 21. STM32 ST-LINK Utility
AN5041Functionality test with customized protocol
AN5041 - Rev 5 page 22/60
2. Then select [Target]>[ Program & Verify]
Figure 22. STM32 ST-LINK program and verify menu
3. Click [Browser] and select the .hex in the STEVAL-IDP004V2 folder
Figure 23. STEVAL-IDP004V2 folder with STEVAL-IDP004V2.hex
AN5041Microcontroller programming procedure
AN5041 - Rev 5 page 23/60
4. Click [Start] and program the board.The same procedure must be followed to program the STEVAL-IDP003V1, but here it is necessary to selectthe appropriate Slave Node sub folder according to the sensor.
Figure 24. Sensor folder with STEVAL-IDP003V1.hex
4.2 PC interface
Tera Term or Putty HyperTerminal interfaces can be used to perform programming procedures and remote sensordata acquisition using RS-485 interface as well as USB communication. According to the communication chosen,it is necessary to compile different firmware solutions:• once both boards are powered and programmed, connect the dongle (USB-RS485)• connect the serial COM port
Figure 25. COM port connection with Tera Term
AN5041PC interface
AN5041 - Rev 5 page 24/60
• Configure the serial communication parameters based on STEVAL-IDP004V2 settings:– Baud rate = 230400– Word length = 8 bit– Stop bits = 1– Parity = NONE– Flow Control = NONE
Figure 26. COM port settings
• Configure Terminal and check the “Local Echo” box
Figure 27. Terminal settings
AN5041PC interface
AN5041 - Rev 5 page 25/60
After performing the steps above, you can start communication:1. Send START command2. Digit Master and click enter3. Insert Master IC address using number from 0 to 34. Insert the operating mode in this format:
– WR_C for write current– WR_S for write sequential– RD_C for read current– RD_S for read sequential
5. Based on the operating mode chosen, different information is required:– For WR_C, insert:
a. Register address in decimal formatb. Register value in decimal format with comma character at the endc. A programming completion confirmation should appear
– For WR_S, insert:a. All register values, in three-digit format, with a comma between each value and at the endb. A programming completion confirmation should appear
– For RD_C:a. The L6360 Status register value is shownb. The reading done message appears
6. Following the programming procedure, run the communication with the STEVAL-IDP003V1a. Type the command “COMMAND END”b. Type “DEVICE” and click enterc. Type “IDS” and click enterd. After the sensor responds, type “PRM”e. After sensor responds, either close the communication with the selected sensor with “COMMAND
END”, or digit "COMMAND NEW" and then continue with the “PRM” command for further dataacquisition.
The codeblock below shows an example of STEVAL-IDP004V2 programming.
AN5041PC interface
AN5041 - Rev 5 page 26/60
SELECT MASTER OR DEVICEMASTERINSERT ADDRESS IC:0INSERT OPERATING MODE:WR_CINSERT REGISTER ADDRESS:5INSERT REGISTER VALUE:152,PROGRAMMING DONE
COMMAND NEWINSERT ADDRESS IC:0INSERT OPERATING MODE:WR_SINSERT REGISTER VALUE:096,122,033,122,122,122,122, PROGRAMMING DONE
COMMAND NEWINSERT ADDRESS IC:0INSERT OPERATING MODE:RD_C
Status register 128READING DONE
COMMAND NEWINSERT ADDRESS IC:2INSERT OPERATING MODE:WR_CINSERT REGISTER ADDRESS:1INSERT REGISTER VALUE:096,PROGRAMMING DONE
COMMAND NEWINSERT ADDRESS IC:2INSERT OPERATING MODE:RD_SINSERT REGISTER ADDRESS:0Status register 128Configuration register 96Control 1 33Control 2 33LED 1 MSB 0LED 1 LSB 0LED 2 MSB 0LED 2 LSB 0Parity register 128READING DONE
The codeblock below shows an example of STEVAL-IDP004V2 to STEVAL-IDP003V1 communication.
AN5041PC interface
AN5041 - Rev 5 page 27/60
SELECT MASTER OR DEVICEDEVICEINSERT SENSOR COMMAND: IDSSENSOR ID: VL6180XCONNECTEDINSERT SENSOR COMMAND: PRMSENSOR ID: VL6180XDISTANCE 46 mmCOMMAND END
SELECT MASTER OR DEVICEDEVICEINSERT SENSOR COMMAND: IDSSENSOR ID: STTS751CONNECTEDINSERT SENSOR COMMAND: PRMSENSOR ID: STTS751TEMPERATURE: 28.7168 Celsius degreeCOMMAND END
SELECT MASTER OR DEVICEDEVICEINSERT SENSOR COMMAND: IDSSENSOR ID: IIS2DHCONNECTEDINSERT SENSOR COMMAND: PRMSENSOR ID: IIS2DHVIBRATION X,Y,Z: 1950Hz 0.13M/s2 ; 1971Hz 0.08m/s2 ; 1950Hz 0.25M/s2 ;COMMAND END
SELECT MASTER OR DEVICEDEVICEINSERT SENSOR COMMAND: IDSSENSOR ID: IIS328DQCONNECTEDINSERT SENSOR COMMAND: PRMSENSOR ID: IIS328DQACCELERATION X,Y,Z: 517, -35, 915, mg
AN5041PC interface
AN5041 - Rev 5 page 28/60
5 Functionality test with IO-Link stack
To perform a typical application test on the stack:
Step 1. Connect the STEVAL-IDP003V1 to the STEVAL-IDP004V2 and supply the system using the CON1 onSTEVAL-IDP004V2
Step 2. Open TEConcept Control tool
Step 3. Connect the STEVAL-IDP004V2 to the PC
Step 4. Select the right IODD and supply the STEVAL-IDP003V1 board
Step 5. Connect the Control tool to the STEVAL-IDP004V2 and supply the STEVAL-IDP003V1 (seeSection 5.2 How to use TEConcept Control Tool for details)
Step 6. Flash the firmware related to the sensor board using STM32 ST-LINK Utility
5.1 Microcontroller programming procedure
Follow the microcontroller programing procedure only for the STEVAL-IDP003V1D board, as the STEVAL-IDP004V2 has been already programmed with the IO-Link stack.The steps necessary to program the board through the STM32 ST-LINK Utility are the same as described in theprevious section: the only difference is that the firmware package to use is the version with stack.Once the programming procedure is completed, use TEConcept Control Tool to read and plot the sensormeasured data.
5.2 How to use TEConcept Control Tool
The STEVAL-IDP004V2 with the master stack can be managed by the user via TEConcept Control Tool. Followthe procedure below to enable communication.
Step 1. Connect the STEVAL-IDP004V2 to the PC via USB or RS485 connector
Step 2. Provide the supply voltage to the board
Step 3. Open the Control Tool and select the virtual COM port related to the board in the Comm. port menu
Figure 28. TEConcept Control Tool: virtual COM port selection
AN5041Functionality test with IO-Link stack
AN5041 - Rev 5 page 29/60
Step 4. Click on the green button to start communication
Figure 29. TEConcept Control Tool: active connection
Step 5. Click on [Select device]
Figure 30. TEConcept Control Tool: device selection
Step 6. Click [Import] to import the relevant IODD file, and then double click on the IODD to select it
AN5041How to use TEConcept Control Tool
AN5041 - Rev 5 page 30/60
Step 7. Click [IO-Link] (on the right) to connect the node and display the plot
Figure 31. TEConcept Control Tool: node connection
Figure 32. TEConcept Control Tool: data plot
AN5041How to use TEConcept Control Tool
AN5041 - Rev 5 page 31/60
6 STEVAL-IDP003V1 schematic diagrams
Figure 33. STEVAL-IDP003V1 circuit schematic (1 of 6) - step-down switching regulator
F V
V
F V
R
4
F VR
H
1
3H
4
5 678
V 2
2
9 V 1
_D
F V
F V220 n
R2
50
Vcc
11
NC
OUT2
R1
C1
L7986TR
43
2.
10CC
EXC2 22 µ
D1
Fsw
16
FB
VDFPN10
PA
8V
16
16
5.6k
C4
C6
10
L1
k7
C5
C3
U1
R4
GN
D2 µF
SY
OUT1
50
18n
360
COM
P
470 µ
22 n
EN
R3
CC
82p
5
AN
5041 - Rev 5
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AN
5041Schem
atic diagrams
Figure 34. STEVAL-IDP003V1 circuit schematic (2 of 6) - vibration sensor
1
6
4
3 2
7
5
9
8
123456789
3v3_Ax
10
C29
12
10
R39
RES
GND_Ax
U2C30
R42 10k
INT2
Interrupt1_Ax
GND3
J5
I2C_SCL_MEMS_Ax
Interrupt1_Ax
10k
GND_Ax
I2C_SDA_MEMS_Ax
GND2
GND_Ax
3v3_Ax
IIS2DH
3v3_Ax
I2C_SCL
11
I2C_SCL_MEMS_Ax
GND1
R40
INT1
Vdd_IO 10uF 6.3V
CS
SA0
3v3_Ax
10k
R41 10k
GN
D_Ax
GND_Ax
CON10A
I2C_SDA_MEMS_Ax
I2C_SDA
I2C_SCL_MEMS_Ax
GND_Ax
100nF 10V
I2C_SDA_MEMS_Ax
Vdd
Interrupt1_Ax
AN
5041 - Rev 5
page 33/60
AN
5041Schem
atic diagrams
Figure 35. STEVAL-IDP003V1 circuit schematic (3 of 6) - accelerometer sensor
3v3_A
3v3_A3v3_A
3v3_A
3v3_A
R2910k
U8
IIS328DQ
Vdd_IO14
NC11
NC22
I2C_SCL11
GND16
I2C_SDA16
SA015
CS
12
RES2
4IN
T23
INT1
7
GND28
RES1
13
Vdd5
NC317
NC418
GND39
GND410
NC
721
NC
620
NC
519
NC
1024
NC
923
NC
822
R3010k
J4
CON10A
12345678910
C11
100nF 10V
R33 10k
C24
100nF 10V
R34 10k
C23
10µF6.3V
Interrupt1_A
GND_A
Interrupt1_A
GND_A
I2C_SCL_MEMSI2C_SDA_MEMS
I2C_SDA_MEMS
I2C_SCL_MEMS
GND_A
GND_A
GND_A
GND_A
Interrupt1_AI2C_SDA_MEMSI2C_SCL_MEMS
GND_A
AN
5041 - Rev 5
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AN
5041Schem
atic diagrams
Figure 36. STEVAL-IDP003V1 circuit schematic (4 of 6) - temperature sensor
1
2
6
3
5
4
1 23 45 67 89
3v3_T
3v3_T
I2C_SCL_THERM
10pF 10V
10K
EVENT
R37 R38
Vdd
10KCON10A
GPIO_THERMI2C_SCL_THERM
20K
Addr/THERM
3v3_T
R31
3v3_T
GPIO_THERMI2C_SDA_THERM
20K
I2C_SDA_THERMC21SDA
J3
U7
STTS751
GND
3v3_T
3v3_T
R32
GPIO_THERM
I2C_SCL_THERM
10I2C_SDA_THERMSCL
Figure 37. STEVAL-IDP003V1 circuit schematic (5 of 6) - proximity sensor3v3_PRX
3v3_PRX
3v3_PRX
R23
47k
C204.7uF 6.3V
R26
47k
U6
VL6180X
GPIO-11
NC12
NC23
GPIO-04
SCL5
SDA6
NC37
AVDD_VCSEL8
AVSS_VCSEL9
AVDD10
NC411
AVSS12
C22
100nF 10V
J6
CON10A
1 23 45 67 89 10
I2C_SCL_PRX
I2C_SDA_PRX
GND_PRX
GND_PRX
I2C_SCL_PRXI2C_SDA_PRX
GND_PRX
GPIO-1_PRX
GPIO-1_PRX GPIO-1_PRXI2C_SDA_PRXI2C_SCL_PRX
GND_PRX
AN
5041 - Rev 5
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AN
5041Schem
atic diagrams
Figure 38. STEVAL-IDP003V1 circuit schematic (6 of 6) - microcontroller
VL6180X
VDFPN 6
Vcc
Vcc
8V
3v3
3v3-IC
3v3-Ext
3v33v3-Ext
3v3
3v3
3v3
3v33v3
3v3
3v3
3v3-Ext
3v3
3v3 3v3
JP1
CONN AV 4-J
1
4
3
2
D5 RED LED
C31
10pF 10V
R64k7
Y1 24 MHz
SW1
RESET
R13100R
R1010k
R9 10k
R5 22K
C14
47nF 10V
J2
CON10A
1 23 45 67 89 10
R15 100R
R20 2k2
C17
10pF 10V
R74k7
C13100nF 10V
R12100R
D4 NSR05T40P2
R16 100R
C28 100nF 10V
R21 4k7
C27100nF 10V
C910pF
C18
1uF 16V
D2 NSR05T40P2
C16
10pF 10V
D3GREEN LED
C7
10pF
R19 4k7
U3
L6362A
Vdd1
IN12
IN23
EN/DIAG4
OUT/IQ5
OL6
GND7
SEL8
OUTL9
IQ10
OUTH11
Vcc12
C1010pF
J1
CON5
123 4
5
R430
R24 0 N.M.
R18 2k2
C15
10pF 6V
C810pF
C26
100nF 10V
R8 0 N.M.
R27 31.6k 1%
R25100K N.M.
C25
100nF 10V
C19
2.2uF 10V
C12
1uF 50V
R170
U5LDFPUR
PG3
EN5
GND4
ADJ2
Vout1
Vin6
GN
D2
7
R14 100R
R35
0 N.M.
R11 100R
U4
STM32L071x
VDD3B6
PC14
OSC
32_INC
6
PC15
OSC
32_OU
TC
7
NRSTD5
PC13B7
PA4F5
PA1E4
PA2F6
PA3G7
PA0E5
PA5/ADC5G6
PA6/ADC6G5
PA7/ADC7F4
PB0
G4
PB1
D3
VSSD4
VDD
1A7
PA8
D1
PA9/I2C1SC
LE2
PA10/I2C1SD
AC
1
PA11D2
PA12B1
PA13C2
PA14B2
PA15/NSSA2
PB3/SCKA3
PB4/SPI1MISOB3
PB5/SPI1MOSIA4
PB6B4
PB7C3
BOOTA5
PB8B5
PC1C4
PC2
E7VR
EF+
E6
VDDAF7
PB2E3
PB10G
3PB11
F3
VDD
2G
2
PB12G
1PB13
F2PB14
F1PB15
E1
PC6A6
PC0
C5
PH1
OSC
_OU
TD
7
VDD
IO2
A1
PH0
OSC
IND
6
R28 10k 1%
NRST
GND
EN/DIAG
GNDSWDIO SWCLK
NRST
EN/DIAG
I2C_SD
A
I2C_SC
L
SWCLK
SWDIO
Interrupt1
OSC_IN OSC_OUT
OSC
_IN
OSC
_OU
T
I2C_SCL
I2C_SDA
GND
I2C_SCLI2C_SDAInterrupt1
I2C_SCLI2C_SDAInterrupt1
AN
5041 - Rev 5
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AN
5041Schem
atic diagrams
7 STEVAL-IDP003V1 bill of materials
Table 3. STEVAL-IDP003V1 evaluation board bill of materials
Item Q.ty Ref. Part/Value Description Manufacturer Order code
1 2 C1 22 µF 10 V ±20% SMD0805
X5R ceramiccapacitor Any Any
2 1 C2 2.2 µF 50 V ±20% SMD0805
X7R ceramiccapacitor Any Any
3 1 C3 220 nF 50 V ±10% SMD0603
X7R ceramiccapacitor Any Any
4 1 C4 22 nF 16 V ±10% SMD0402
X7R ceramiccapacitor Any Any
5 1 C5 82 pF 16 V ±10% SMD0402
X7R ceramiccapacitor Any Any
6 1 C6 18 nF 16 V ±10% SMD0402
X7R ceramiccapacitor Any Any
7 1 C12 1 µF 50 V ±10% SMD 0805 X7R ceramiccapacitor Any Any
8 1 C14 47 nF 16 V ±10% SMD0402
X7R ceramiccapacitor Any Any
9 1 C18 1 µF 16 V ±10% SMD 0603 X7R ceramiccapacitor Any Any
10 1 C19 2.2 µF 10 V ±10% SMD0603
X7R ceramiccapacitor Any Any
11 6
C7, C8,C9,C10,C15,C16,C17,C31
10 pF 10 V ±5% SMD 0402 C0G ceramiccapacitor Any Any
12 5
C13,C25,C26,C27,C28
100 nF 10 V ±10% SMD0402
X7R ceramiccapacitor Any Any
13 1 D1 STPS1L60MF STmite flat(DO222-AA)
Low drop powerSchottky rectifier inflat package
ST STPS1L60MF
14 1 D5 2.3 V SMD 0603 Red LED Any Any
15 1 D3 2.3 V SMD 0603 Green LED Any Any
16 2 D2, D4 NSR05T40P2 SOD-923 Schottky barrierdiode
OnSemiconductors NSR05T40P2T5G
17 1 JP1 M12 connector male TH Binder 9043121204
18 1 J1 CON5 TH 5 way stripline male,pitch 1.27mm Harwin Inc. M52-040023V0545
19 1 J2 CON5 TH10 way stripline maledouble row, pitch1.27mm
Harwin Inc. M50-3200545
20 1 L1 470 µH 140 mA SMD Inductor TDK VLCF4028T-471MR14-2
21 1 R1 43 R ±1% SMD 0402 SMD Resistor Any Any
AN5041STEVAL-IDP003V1 bill of materials
AN5041 - Rev 5 page 37/60
Item Q.ty Ref. Part/Value Description Manufacturer Order code
22 5
R6, R7,R2,R19,R21
4.7 k ±1% SMD 0402 SMD Resistor Any Any
23 1 R3 5.6 k ±1% SMD 0402 SMD Resistor Any Any
24 1 R4 360 R ±1% SMD 0402 SMD Resistor Any Any
25 3R9,R10,R28
10k ±1% SMD 0402 SMD Resistor Any Any
26 2 R18,R20 2k2 ±1% SMD 0402 SMD Resistor Any Any
27 1 R27 31.6 k ±1% SMD 0402 SMD Resistor Any Any
28 6
R11,R12,R13,R14,R15,R16
100 R ±1% SMD 0402 SMD Resistor Any Any
29 2 R17,R35 0 E ±1% SMD 0402 SMD Resistor Any Any
30 3R8,R24,R43
0 E ±1% SMD 0402 SMD Resistor Any Any
31 1 R25 100 k ±1% SMD 0402 SMD Resistor Any Any
32 1 R5 22 k ±1% SMD 0603 SMD Resistor Any Any
33 1 SW1 RESET SMD Micro switch C & K KMR221GLFS
34 U1 L7986TR VFQFPN10 3 x 3mm
3 A step-downswitching regulator ST L7986TR
35 1 U3 L6362A DFN12 3x3mmIO-Linkcommunicationtransceiver device IC
ST L6362ATR
36 1 U4 STM32L071CZY6WLCSP49
Access line ultra-low-power 32-bit MCU ST STM32L071CZY6
37 1 U5 LDFPUR DFN6 3x3mm 1 A very low dropvoltage regulator ST LDFPUR
38 1 Y1 24MHZ SMD 2.50x2.00 mm Crystal Abracon LLC ABM10AIG-24.000MHZ-4Z-T3
AN5041STEVAL-IDP003V1 bill of materials
AN5041 - Rev 5 page 38/60
Table 4. Sensor board bill of materials
Item Q.ty Ref. Part / Value Description Manufacturer Order code
1 4 C11, C22, C24,C29
100 nF 10 V ±10% SMD0402 X7R ceramic capacitor Any Any
2 1 C20 4.7 µF 6.3 V ±10% SMD0603 X5R ceramic capacitor Any Any
3 1 C21 10 pF 6.3 V ±10% SMD0402 X7R ceramic capacitor Any Any
4 2 C23,C30 10 µF 6.3 V ±10% SMD0603 X5R ceramic capacitor Any Any
5 4 J3, J4, J5, J6 CON5 TH 5x2 way stripline male, pitch1.27mm Any Any
6 10
R29, R30, R33,R34, R37, R38,R39, R40, R41,R42
10 k ±1% SMD 0402 SMD Resistor Any Any
7 2 R23, R26 47 k ±1% SMD 0402 SMD Resistor Any Any
8 2 R31, R32 20 k ±1% SMD 0402 SMD Resistor Any Any
9 1 U2 IIS2DH LGA-123-axis digital accelerometer, ultralow-power high performanceMEMS motion sensor
ST IIS2DHTR
10 1 U6 VL6180X OPTICALLGA12
Proximity sensor, gesture andambient light sensing (ALS)module
ST VL6180XV0NR/1
11 1 U7 STTS751 UDFN-6L U2.25 V low-voltage local digitaltemperature sensor ST STTS751-1DP3F
12 1 U8 IIS328DQ QFN 24
3-axis accelerometer forindustrial applications, SPI/I2Cdigital output, ultra low-powerhigh performance
ST IIS328DQTR
AN5041STEVAL-IDP003V1 bill of materials
AN5041 - Rev 5 page 39/60
8 STEVAL-IDP004V2 schematic diagrams
Figure 39. STEVAL-IDP004V2 circuit schematic (1 of 11)
IRQ_M1
C94
Rese t_M0
22pF/10V
C97 C98
ENCQ_M0
Reset_M1
22pF/10V
ENL+_M1
22pF/10VC95C99
IRQ_M0
C92
ENCQ_M1
22pF/10V
C96
ENL+_M0
22pF/10V 22pF/10V22pF/10V
C93 22pF/10V
C101
ENL+_M2
C104
ENCQ_M2
C10322pF/10V
Rese t_M2
22pF/10V 22pF/10V22pF/10VC102 C106
IRQ_M2
22pF/10V 22pF/10VC100
ENCQ_M3
C10522pF/10V
Rese t_M3
IRQ_M3
C10722pF/10V
ENL+_M3
AN
5041 - Rev 5
page 40/60
AN
5041STEVA
L-IDP004V2 schem
atic diagrams
Figure 40. STEVAL-IDP004V2 circuit schematic (2 of 11)
L+_CON_M0
2
IQ_CON_M0
5
4
JR4
RS:464-8000Binder 99-3431-202-04Serie 713/763
CQO_CON_M0L-_M0
Master_M0
31
Vdd_M0
Vdd_M1
Vdd_M2
Vdd_M3
Vdd_M1Vdd_M0
Vdd_M2
Vdd_M3
4
3
JR2
L-_M2
2
IQ_CON_M2L+_CON_M2 1
Master_M2
5CQO_CON_M2
JR3
4 Master_M1
CQO_CON_M12
1
L-_M1
IQ_CON_M1L+_CON_M1
5
3
3
Master_M3
CQO_CON_M3
2
IEC 60947-5-2
JR1
L+_CON_M3
L-_M3 5
4
IQ_CON_M31
AN
5041 - Rev 5
page 41/60
AN
5041STEVA
L-IDP004V2 schem
atic diagrams
Figure 41. STEVAL-IDP004V2 circuit schematic (3 of 11)
D20 LED
R54 680R
R56 680RR55 680R
R50 680R
R53 680R
R59 680R
D18 LED
D9 LED
D12 LED
D17 LED
R60 680R
D13 LED
R58 680R
D14 LED
R49 680R
R52 680R
R57 680R
D11 LED
D19 LED
D16 LEDD15 LED
D10 LED
R51 680R
LED1_M0
LED2_M0 Vdd_M0
LED1_M1
LED2_M1 Vdd_M1
LED1_M2
LED2_M2 Vdd_M2
LED1_M3
LED2_M3 Vdd_M3
AN
5041 - Rev 5
page 42/60
AN
5041STEVA
L-IDP004V2 schem
atic diagrams
Figure 42. STEVAL-IDP004V2 circuit schematic (4 of 11)
L-_M3
L-_M1L+_CON_M1
L-_M0
CQO_CON_M3
SPT01-335DEE / Package: QFN(dim. 3.0x3.0 mm)
9
TR1
IC-SPT01-335DEE
2
L+_CON_M2TR4
34
L+_CON_M3TR3
A
7
58
2
CQO_CON_M1
16
IC-SPT01-335DEE
58
2
TR2
16
34
LS
V+
L-_M2
16
IC-SPT01-335DEE
CQO_CON_M234
9
IC-SPT01-335DEE
9
58
2
34
IQ_CON_M0
58
16
IQ_CON_M1
IQ_CON_M3
CQO_CON_M0
IQ_CON_M2
L+_CON_M0
9
7
7
7
HS
HS LSLS
LSHS
HS
K
A K
K
K
A
A
V+V+
V+
V-
V-
V-
V-
AN
5041 - Rev 5
page 43/60
AN
5041STEVA
L-IDP004V2 schem
atic diagrams
Figure 43. STEVAL-IDP004V2 circuit schematic (5 of 11)
100nF/100V
SDA
R17 150R
R11 150RL-
21
Master M0
C9R19 150R
VH_CON
124K
0,1
%
D1STPS1L40M
C6STPS1L40M
14
13
IRQ_M0
Reset_M0 Vdd_
M0
OUTIQ_M0
19LED1
7
CQi_M0
C10
17
SCL
560pF/100V
C2
100nF/100V
8
L-2
18
5
L-_M0
C12
R3 150R
10IN C/Qo
11
ENCQ_M0
R4100R
LED1_M0
SCL
Vcc
Rbias
I/Q24
C/Qo26
L+23
Vcc
R15 150R
D2
C13
2.2µF/10VR22 150R
22
25C/Qi
R9 150R
L+_CON_M0
R13 150R
R23
OUT C/Qi
12
SA2
IRQ
Sel
1
C1
20LED2 100nF/100V
+
IQ_CON_M0
CQO_CON_M0
LED2_M0
ENL+_M0
C5
100nF/100V
CQo_M0
560pF/100V
EP27
R6 15R
SA1
6
VH3
15
SA0
4Vdd
OUT I/Q
SDA16
R1161R
R2 150R
10µF 50V
L6360DR1
EN_CQ
RST
EN_L+
9
Vcc
AN
5041 - Rev 5
page 44/60
AN
5041STEVA
L-IDP004V2 schem
atic diagrams
Figure 44. STEVAL-IDP004V2 circuit schematic (6 of 11)
R20 150R R21
CQo_M1
IQ_CON_M1
EP27
Master M1
6
LED1
7
VH_CON
100nF/100V
R1 150R
R14 150R
D4 C7
SA0
R24 150R
LED1_M1
IRQ_M1
10IN C/Qo
C14
LED2_M1
R1171R
STPS1L40M
L-_M1
R8 15R
ENL+_M1
EN_CQ
RST17
560pF/100V
L+_CON_M1
OUT I/Q
SDA
SA2
IRQ14
R7 100R
R18 150R
STPS1L40M
Rbias
I/Q
21
2L-
560pF/100V
C/Qo26
L+
C8D3
CQi_M1
+
Vdd_M1
R12 150RENCQ_M1
CQO_CON_M1
10µF 50V
Vcc
C3
19
100nF/100V
C16
124K
0.1
%
Vdd_M1
22
C17
25C/Qi
13EN_L+
9
R5 150R
2.2µF/10V100nF/100V
R10 150R
Reset_M1
SCL
SDA
R16 150R8
Sel
11OUT C/Qi
12
100n
F/10
0V
C18
3VH
L6360DR2
C4
Vcc
20LED2
16
SCL15
23
18
5SA1
1Vcc
24
L-
4Vdd
AN
5041 - Rev 5
page 45/60
AN
5041STEVA
L-IDP004V2 schem
atic diagrams
Figure 45. STEVAL-IDP004V2 circuit schematic (7 of 11)
18
5SA1
23
SA2
IRQ
SDA
Vdd_M2
10IN C/Qo
11
EP27
Master M2
R27 100R
21
2L-
100n
F/10
0V
VH_CON
24
L-
C19
Rbias
I/Q
STPS1L40M
Vdd_M2
STPS1L40M
12OUT I/Q
SDA
R43 150R
Vdd
3VH
+
R39 150R
C24
IRQ_M2
Reset_M2R47 150R
OUTIQ_M2
L-_M2
LED2
CQi_M2
LED1_M2
R44
R37 150R
16
SCL
R33 150R
R31 15R
14
13
22
2.2µF/10V
C28
10µF 50V
ENCQ_M2
LED2_M2
Sel
1
CQO_CON_M2
SCL
LED119
7
124K
0.1
%
Vcc
C30
8
L+_CON_M2
D6 D5
4
560p
F/10
0V
100n
F/10
0V
25C/Qi
OUT C/Qi
VccVcc
R35 150R
20C27
560pF/100V
ENL+_M2
C20
R41 150R
100nF/100V
C/Qo26
L+
CQo_M2
IQ_CON_M2
6
100n
F/10
0V
EN_CQ
RST17
R1151R
EN_L+
9
L6360DR3
R25 150R
C23
15
SA0
R28 150R
C31
AN
5041 - Rev 5
page 46/60
AN
5041STEVA
L-IDP004V2 schem
atic diagrams
Figure 46. STEVAL-IDP004V2 circuit schematic (8 of 11)
CQO_CON_M3
17
20LED2
CQo_M3
Master M3
8Sel
6
SCL
STPS1L40MC26
7
VH_CON
C21
19LED1
C33
15
SA018
100nF/100V 100nF/100V
560pF/100V
L6360
R36 150R
SCL
Reset_M3
SDA
LED1_M3
IRQ_M3
EP27
C32ENL+_M3
C/Qi25
124K
0.1
%
Vcc
13EN_L+
9
1Vcc
2.2µF/10V
R26 150R
R42 150R
LED2_M3
R1141R
R30 100R
CQi_M3
DR4
EN_CQ
RSTR48 150R
ENCQ_M3
C/Qo26
L+23
Vcc
Rbias
I/Q
OUT I/Q
SDA16
Vdd
VH3
R38 150R
10IN C/Qo
100nF/100V
R29 150R
R40 150R
L-_M3
5SA1
C35
560p
F/10
0V
C36
SA2
IRQ14
R34 150R
24
L-21
Vdd_M3
L+_CON_M3
IQ_CON_M3
10µF 50V
C22+
100n
F/10
0V
OUTIQ_M3
R45 150R R46
22
R32 15R
C25
4
L-2
STPS1L40MD8
11OUT C/Qi
12
D7
Vdd_M3
AN
5041 - Rev 5
page 47/60
AN
5041STEVA
L-IDP004V2 schem
atic diagrams
Figure 47. STEVAL-IDP004V2 circuit schematic (9 of 11)
Vcc
383R
Not Mounted1.2mH 1ohm 400mA
11k
C80
L7986A
1OUT
15µF/16VSYNCH
EN3
C76
8V
R15343R
C79
VH_C
ON
0R
R127
STPS1L40
R126
CO
MP
5FB
Vcc
18nF/16V
Fsw
7
C75
82pF/16V R125
8 VCC
4.7k
GN
D1
U1
0R D29
2
C78
22nF/16V
C77
R124
6
GN
D22.2µF/50V
220nF/50V
R128L4
L-_M0
C37
RS:533-0609KEMET PME295RB4470MR30
Not Mounted
L-_M3
do not mount TP1
4.7n
F 4k
V
L-_M2
L-_M1
TP1
STPS1H100A
C38
EMC TEST
4.7n
F 4k
V
SM15T33CA
D28
36V max
EARTH
EMC test only -1
Vcc
Ground
Not Mounted
1
D212Main Voltage
CON1
49
AN
5041 - Rev 5
page 48/60
AN
5041STEVA
L-IDP004V2 schem
atic diagrams
Figure 48. STEVAL-IDP004V2 circuit schematic (10 of 11)
PB861
R163
R17
1
100R
NRST
38
100R
CQi_M0
16
100R
100n
F/10
V
CQo_M3
31
PC1
PC2
ENL+_M1
100
VDD
A
LED_M2
CAN_SHDN
R91
C73
PB11 I2C2_SDA
2
63
C70
100
100R
BUS_IND_RX
C72
R80
2.2uF/10V
R92
Package: LQFP64
OUTIQ_M2
100R
SWDIOOSC_OUTOSC_IN
CQi_M3
10
PC0
9
BUS_IND_TX
IRQ_M3
CAN_RS
4
VBAT
44PA
11
Reset_M3
STM32F205RBTx
1µF/
10V
U7
PA12
45
R161
VSS_
3
13
R67
100R
37PC
7
100R
OUTIQ_M3
5
100n
F/10
V
100n
F/10
V
100R
R98
Vdd
PA8
100
SDA
LED_M0
8
12VS
SA
100R
62
PB1536
IRQ
_M2
USB_DMUSB_DP
Reset_M2
100R
100
PH1-OSC_OUT
53
NRST
PC14-OSC32_IN
46
C66
18
R162
6
10K
PC12(UART5_TX)
55PB3(JTDO)
56
100R
C91
PA2(USART2_TX)
29
100R
R82
OUTIQ_M1
R107
100R
R159
41PA
723
C68
17
PB12PC11(USART4_RX)
R86
R11
8
PA13
PA1449
54PD2(UART5_RX)
6
100n
F/10
V
SCL
ST3485DE
2.2uF/10V
100R
ENL+
_M0
USER_Vbus
PC9
LED_M3
ST3485RE
100R
R173
PB127
43PA10(USART1_RX)
100
5
51PC10(USART4_TX)
50
PB10 I2C2_SCL 30
17
OUTIQ_M0
100R
R17
0
R83
R81
C69
PA6
PA3(USART2_RX)
16
NRST
R156
PC5
25
R178
100R
R78
LED_M1
R88
40
PC839
ENL+
_M2
100R
R109
C67
IRQ_M0
R84
100R
CAN_RX
PB4(NJTRST)
R77
PC6
33
8
12
100R
SWDIO
22
PA5
R11
9
58
100R
100R
64
R17
2
IRQ
_M1
100R
R113
VDD
_1
1415
R168
VCAP
_1
48
7
1
100R
PB557
ENL+
_M3
ENCQ_M0
CAN_TX
CAN_RX
42 100R100R
47
4.7µ
F/10
V
R94
100R
R155
BOO
T0
52
26
4
R169
C71
PA15(JTDI)
21PA
420
CAN_TX 100R
20
7
100R
R97
11PC
424
100R
R106
9
ENCQ_M3
VDD
_2
R68
ENC
Q_M
1
18VS
S_4
R160
PC13-TAMPER-RTC14
59PB
7(I2
C1_
SDA)
60
100R
J4
CQo_M1
13
CQi_M2
3
STM32F205RBTx
STLink/V2
Reset_M0
PA0-WKUPPA1
15
PB1435R164
PB0
R179
100R
Vdd
19
SWCLK
PB6(
I2C
1_SC
L)
PC15-OSC32_OUT3
10PC
3
100n
F/10
V
CQo_M0
Reset_M1
100R
R72
PH0-OSC_IN
VCAP
_2
32
100R
PB228
100R
ENCQ_M2
19VD
D_4
1
PA9(USART1_TX)
SWCLK
CQi_M1
CQo_M2
2
100R
R79 100R
VDD
_3
R70
R90
PB1334
11
R177
100R
R154
C90
100R
R85
100n
F/10
V
PB9
AN
5041 - Rev 5
page 49/60
AN
5041STEVA
L-IDP004V2 schem
atic diagrams
Figure 49. STEVAL-IDP004V2 circuit schematic (11 of 11)
4
ACT45B-101-2P
R105
C74
VBus4 USB_DP
Vdd_M2
2
Vdd
Vdd
47pF/10V
R146
430R
ST3485DE
162738495
10K
2
C62
1
5GND
TDK
SHDN
0R
CAN_RS
OSC_OUT
3
OSC_IN
CAN_SHDN CAN
CO
NN
ECTO
R
60.4R
R111
Vdd
4K7
R104
4DI
C65
MAX3051
BUS_IND_TX
500R
USB_DM
CANL
Common Mode Choke
22pF/10V
0R
162738495
ST3485RE
Vdd_M0
D25
Vdd
R165 0R
R184
C84
22pF/10V
U10
LED
GND5
R175
TXD2
U4
R176 1.5K
3
BUS_IND_RX
J5
R120
USB_DP
MASTER Status LEDs
D31
CANH
CANLGNDCANL
CANH
D24
USB_DM
120R
BC848C
430RY116MHz
R181
60.4R
CAN_RX
ST3485EI
C108
A6
1
500R
R174
22pF
R167 100k
LED
R183
LED_M3
GND3
VCC
36K
100nF/10V
C63
R147
4
optional
to be placed close to STM32F103R
CHOKE CM
LEDLED_M0
CANH
C54
N.M.
USER_Vbus
10K
R182
USB_DP
CAN_TX
5GND
C64100nF/10V
USBLC6-2SC6Y
430R
4RXD
MH
2
IO2_IN
1
47pF/10V
MH
1
IO1_IN2
2
D27NRST
R121
7
4ID
R112390R
5V
8Vcc
R102
3
RE
P1
10nF/10V
5V
1
2
430R
R180
LED_M2
U9
R148
Vdd
Vdd
Vdd
LED
CANH
6
5
CN1
Vdd_M3
5V
B7
1RESET.
R103
CONN USB
TP8
R166 0R10K
RO1
Q1
VBUSDM
2
1
L1
R108 4K7
IO2_OUT
6
TP9
LED_M1
R110 10K
C83
S1
MH1MH2
1
8R
S
IO1_OUT
1
CANL
USB_DM
RS485
2
SCL
1
Vdd_M1
D26
SDA
Vdd
DE3
3DP
22pF
ESDCAN24
AN
5041 - Rev 5
page 50/60
AN
5041STEVA
L-IDP004V2 schem
atic diagrams
9 STEVAL-IDP004V2 bill of materials
Table 5. STEVAL-IDP004V2 bill of materials
Item Q.ty Ref. Part/Value Description Manufacturer Order code
1 1 CN1 RS485 TH DB9 femaleconnector Any Any
2 1 CON1 Main voltage TH Two-way screwconnector Any Any
3 1 J4 TH 20-way male IDCconnector Any Any
4 4 C1, C3, C19, C21 10 µF 50 V ±20% TH Electroliticcapacitor Rubycon 50YXF10MEFC5X11
5 24
C2, C4, C9, C10,C13, C14,C16,C18, C20, C22,C27, C28, C31,C32, C33, C36,C64, C68, C69,C70, C71, C72,
C73, C108
100 nF 50 V ±5% SMD0603 X7R Ceramic capacitor Murata GRM188R71H104JA93D
6 8C5, C6, C7, C8,C23, C24, C25,
C26
560 pF 50 V ±5% SMD0603 C0G Ceramic Capacitor Murata GRM1885C1H561JA01D
7 6 C12, C17, C30,C35, C66, C67
2.2 µF 10 V ±10% SMD0805 X7R Ceramic Capacitor Any Any
8 2 C37, C38 4.7 nF 4 kV THSingle layer
ceramic capacitor(not mounted)
Vishay / BCComponents VY1472M63Y5UQ63V0
9 20
C54, C62, C63,C65, C92, C93,C94, C95, C96,C97, C98, C99,
C100, C101, C102,C103, C104, C105,
C106, C107
22 pF 50 V ±5% SMD0603 C0G Ceramic capacitor Any Any
10 1 C74 10 nF 10 V ±10% SMD0603 X7R Ceramic capacitor Any Any
11 1 C75 2.2 µF 50 V ±10% SMD1206 X7R Ceramic capacitor Any Any
12 1 C76 82 pF 25 V ±5% SMD0805 C0G Ceramic capacitor Any Any
13 1 C77 18 nF 16 V ±10% SMD0603 X7R Ceramic capacitor Any Any
14 1 C78 22 nF 16 V ±10% SMD0603 X7R Ceramic capacitor Any Any
15 1 C79 15 µF 16 V ±20% SMD1210 X7R Ceramic capacitor Any Any
16 1 C80 220 nF 50 V ±10% SMD0603 C0G Ceramic capacitor Any Any
17 2 C83, C84 47 pF 25 V ±5% SMD0603 Ceramic capacitor Any Any
18 1 C90 1 µF 10 V ±10% SMD0603 Ceramic capacitor Any Any
AN5041STEVAL-IDP004V2 bill of materials
AN5041 - Rev 5 page 51/60
Item Q.ty Ref. Part/Value Description Manufacturer Order code
19 1 C91 4.7 µF 10 V ±10% SMD0805 Ceramic capacitor Any Any
20 4 DR1, DR2, DR3,DR4
VFQFPN-26L 3.5 x 5 x 1mm
IO-Linkcommunicationmaster transceiverIC
ST L6360
21 16
D9, D10, D11,D12, D13, D14,D15, D16, D17,D18, D19, D20,D24, D25, D26,
D27
LED SMD 0603 Green LED Any Any
22 1 D21 SMC Transil Diode 1500W ST SM15T33CA
23 1 D28 SMA High voltage PowerSchottky rectifier ST STPS1H100A
24 1 D29 SMA Low drop PowerSchottky rectifier ST STPS1L40A
25 1 D31 ESDCAN24 SOT23-3L
Automotive dual-line Transil,
transient voltagesuppressor (TVS)
for CAN bus
ST ESDCAN24-2BLY
26 8 D1, D2, D3, D4,D5, D6, D7, D8 STPS1L40M Stmite Low drop Power
Schottky rectifier ST STPS1L40M
27 4 JR1, JR2, JR3,JR4 Master TH
M12, 5 pin femaleconnector, right
angleNorcomp Inc. 861-005-213R004
28 1 J5 CONN USB Micro-USBA/B USB connector Molex 475900001
29 1 L1 CHOKE CM Choke TDK ACT45B-101-2P-TL003
30 1 L4 1.2mH 1 Ohm TH Inductor WurthElektronik 7447480122
31 1 P1 CAN connector TH DB9 maleconnector Any Any
32 1 Q1 BC848C SOT-23 NPN transistor Infineon BC848C
33 36
R1, R2, R3, R5,R9, R10, R11,
R12, R13, R14,R15, R16, R17,R18, R19, R20,R22, R24, R25,R26, R28, R29,R33, R34, R35,R36, R37, R38,R39, R40, R41,R42, R43, R45,
R47, R48
150 R SMD 0603 100mW Resistors Any Any
AN5041STEVAL-IDP004V2 bill of materials
AN5041 - Rev 5 page 52/60
Item Q.ty Ref. Part/Value Description Manufacturer Order code
34 46
R4, R7, R27, R30,R67, R68, R70,R72, R77, R78,R79, R80, R81,R82, R84, R86,R88, R90, R91,R92, R94, R97,
R98, R106, R107,R109, R113, R118,R119, R154, R155,R156, R159, R160,R161, R162, R163,R164, R168, R169,R170, R171, R172,R177 ,R178, R179
100 R SMD 0603 100mW Resistors Any Any
35 2 R83, R85 100R SMD 0603 100 mW Resistors Any Any
36 4 R6, R8, R31, R32 15 R SMD 0805 500 mW Resistors Any Any
37 4 R21, R23, R44,R46
124 K 0.1% SMD 0603100 mW Resistors Any Any
38 12
R49, R50, R51,R52, R53, R54,R55, R56, R57,R58, R59, R60
680 R SMD 0603 100mW Resistors Any Any
39 4 R102, R103, R104,R105
430 R SMD 0603 100mW Resistors Any Any
40 3 R108, R111, R124 4 K7 SMD 0603 100 mW Resistors Any Any
41 5 R110, R173, R174,R180, R181 10 k SMD 0603 Resistors Any Any
42 1 R125 11 K SMD 0603 100 mW Resistors Any Any
43 1 R112 390 R SMD 0603 100mW Resistors Any Any
44 4 R114, R115, R116,R117 1 R SMD 0603 100 mW Resistors Any Any
45 2 R120, R121 60.4 R SMD 0603 100mW Resistors Any Any
46 1 R126 383 R SMD 0603 100mW Resistors Any Any
47 5 R127, R147, R165,R166, R182 0 R SMD 0603 100 mW Resistors Any Any
48 1 R128 0 R SMD 0603 100 mW Resistor (notmounted) Any Any
49 1 R146 120 R SMD 0603 100mW Resistor Any Any
50 1 R148 SMD 0603 100 mW Resistor (notmounted) Any Any
51 1 R153 43 R SMD 0603 100 mW Resistor Any Any
52 1 R167 100 K SMD 0603 100mW Resistor Any Any
53 1 R175 36 K SMD 0603 100 mW Resistor Any Any
54 1 R176 1.5 K SMD 0603 100 mW Resistor Any Any
55 2 R183, R184 500 R SMD 0603 100mW Resistors Any Any
AN5041STEVAL-IDP004V2 bill of materials
AN5041 - Rev 5 page 53/60
Item Q.ty Ref. Part/Value Description Manufacturer Order code
56 1 S1 RESET SMD MICRO SWITCH6x6mm TE Connectivity 4-1437565-1
57 3 TP1, TP8, TP9 TEST POINT Copper area testpoint (not mounted) Any Any
58 4 TR1, TR2, TR3,TR4
SPT01-335DEE QFN 3x36+3 lead
Automation sensortransient andovervoltageprotection
ST SPT01-335DEE
59 1 U1 L7986A HSOP8 3 A step-downswitching regulator ST L7986A
60 1 U4 ST3485EI SO-8
3.3 V powered, 15kV ESD protected,
up to 12 MbpsRS-485/RS-422
transceiver
ST ST3485EIDT
61 1 U7 STM32F205RBT7LQFP64
High-performanceARM Cortex-M3MCU with 128Kbytes Flash
ST STM32F205RBT7
62 1 U9 MAX3051 SO8 CAN transceiver Maxim MAX3051ESA+
63 1 U10 USBLC6-2SC6YSOT23-6L
Automotive verylow capacitanceESD protection
ST USBLC6-2SC6Y
64 1 Y1 16 MHz SMD Crystal oscillator Any Any
AN5041STEVAL-IDP004V2 bill of materials
AN5041 - Rev 5 page 54/60
Revision history
Table 6. Document revision history
Date Version Changes
05-Oct-2017 1 Initial release.
06-Jun-2018 2
Updated Section 6 STEVAL-IDP003V1 bill of materials, Figure 5. STEVAL-IDP004V1D powermanagement schematic, Figure 6. RS-485, USB and CAN interface, Section 7 STEVAL-IDP004V1schematic diagrams, Section 8 STEVAL-IDP004V1 bill of materials, Figure 18. STEVAL-IDP004V1evaluation firmware project related to RS-485 implementation, Figure 22. Master Node folder withSTEVAL-IDP004V1.hex, Figure 23. Sensor folder with STEVAL-IDP003V1.hex, Figure 24. COM portconnection with Tera Term, Figure 25. COM port settings, Figure 26. Terminal settings and Figure 28.STEVAL-IDP004V1 - STEVAL-IDP003V1 communication example.
27-Jun-2018 3 Updated Figure 1. STEVAL-IDP004V1 master evaluation board and Figure 3. STEVAL-IDP004V1functional blocks.
02-Dec-2019 4
Updated title, Introduction, Section 1.1 STEVAL-IDP004V2 master hub overview, Section 1.2.1STEVAL-IDP003V1D evaluation board, Section 3 Firmware description and Figure 18. STEVAL-IDP004V2 evaluation firmware project related to RS-485 implementation.
Added Section 3.1 STSW-IO-LINK firmware package description, Section 3.2 Firmware package withIO-Link stack implementation, Section 3.2.1 Firmware package for STEVAL-IDP004V2, Section 3.2.2Firmware package for STEVAL-IDP003V1, Section 5 Functionality test with IO-Link stack, Section 5.1Microcontroller programming procedure, Section 5.2 How to use TEConcept Control
Tool, Section 8 STEVAL-IDP004V2 schematic diagrams and Section 9 STEVAL-IDP004V2 bill ofmaterials.
01-Oct-2020 5 Updated Section 3.2.2 Firmware package for STEVAL-IDP003V1.
AN5041
AN5041 - Rev 5 page 55/60
Contents
1 Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.1 STEVAL-IDP004V2 master hub overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1.1 Power management and protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1.2 RS-485, USB and CAN interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1.3 Master IO-Link ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1.4 STEVAL-IDP004V1 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 STEVAL-IDP003V1 kit overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2.1 STEVAL-IDP003V1D evaluation board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2.2 Power management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.2.3 Device IO-Link port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.2.4 IO-Link transceiver description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.2.5 Sensor boards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.2.6 connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2 EMC test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
2.1 Burst test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.2 Surge test in differential mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.3 ESD test in contact discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3 Firmware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
3.1 STSW-IO-LINK firmware package description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.1.1 STEVAL-IDP004V2 evaluation firmware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.1.2 STEVAL-IDP003V1 evaluation firmware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.2 Firmware package with IO-Link stack implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.2.1 Firmware package for STEVAL-IDP004V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.2.2 Firmware package for STEVAL-IDP003V1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4 Functionality test with customized protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
4.1 Microcontroller programming procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.2 PC interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5 Functionality test with IO-Link stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
5.1 Microcontroller programming procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.2 How to use TEConcept Control Tool. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
AN5041Contents
AN5041 - Rev 5 page 56/60
6 STEVAL-IDP003V1 schematic diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
7 STEVAL-IDP003V1 bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
8 STEVAL-IDP004V2 schematic diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
9 STEVAL-IDP004V2 bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
AN5041Contents
AN5041 - Rev 5 page 57/60
List of figuresFigure 1. STEVAL-IDP004V2 master evaluation board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Figure 2. STEVAL-IDP003V1 kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Figure 3. STEVAL-IDP004V2 functional blocks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Figure 4. STEVAL-IDP004V2 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Figure 5. STEVAL-IDP004V2 power management schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Figure 6. RS-485, USB and CAN interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Figure 7. STEVAL-IDP004V2 connector drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Figure 8. STEVAL-IDP003V1 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Figure 9. STEVAL- IDP003V1D main components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Figure 10. STEVAL-IDP003V1D power management schematic (1 of 3) - DC-DC converter. . . . . . . . . . . . . . . . . . . . . . . 9Figure 11. STEVAL-IDP003V1D power management schematic (2 of 3) - linear regulator . . . . . . . . . . . . . . . . . . . . . . . . 9Figure 12. STEVAL-IDP003V1D power management schematic (3 of 3) - IO-Link transceiver . . . . . . . . . . . . . . . . . . . . 10Figure 13. Sensor daughter boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Figure 14. STEVAL-IDP003V1D connector drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Figure 15. Burst test setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Figure 16. Surge test setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Figure 17. ESD test setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Figure 18. STEVAL-IDP004V2 evaluation firmware project related to RS-485 implementation . . . . . . . . . . . . . . . . . . . . 18Figure 19. STEVAL-IDP003V1 evaluation firmware project . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Figure 20. STEVAL-IDP003V1 stack architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Figure 21. STM32 ST-LINK Utility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Figure 22. STM32 ST-LINK program and verify menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Figure 23. STEVAL-IDP004V2 folder with STEVAL-IDP004V2.hex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Figure 24. Sensor folder with STEVAL-IDP003V1.hex. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Figure 25. COM port connection with Tera Term . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Figure 26. COM port settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Figure 27. Terminal settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Figure 28. TEConcept Control Tool: virtual COM port selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Figure 29. TEConcept Control Tool: active connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Figure 30. TEConcept Control Tool: device selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Figure 31. TEConcept Control Tool: node connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Figure 32. TEConcept Control Tool: data plot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Figure 33. STEVAL-IDP003V1 circuit schematic (1 of 6) - step-down switching regulator . . . . . . . . . . . . . . . . . . . . . . . . 32Figure 34. STEVAL-IDP003V1 circuit schematic (2 of 6) - vibration sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Figure 35. STEVAL-IDP003V1 circuit schematic (3 of 6) - accelerometer sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Figure 36. STEVAL-IDP003V1 circuit schematic (4 of 6) - temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Figure 37. STEVAL-IDP003V1 circuit schematic (5 of 6) - proximity sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Figure 38. STEVAL-IDP003V1 circuit schematic (6 of 6) - microcontroller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36Figure 39. STEVAL-IDP004V2 circuit schematic (1 of 11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Figure 40. STEVAL-IDP004V2 circuit schematic (2 of 11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Figure 41. STEVAL-IDP004V2 circuit schematic (3 of 11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42Figure 42. STEVAL-IDP004V2 circuit schematic (4 of 11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43Figure 43. STEVAL-IDP004V2 circuit schematic (5 of 11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Figure 44. STEVAL-IDP004V2 circuit schematic (6 of 11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45Figure 45. STEVAL-IDP004V2 circuit schematic (7 of 11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46Figure 46. STEVAL-IDP004V2 circuit schematic (8 of 11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Figure 47. STEVAL-IDP004V2 circuit schematic (9 of 11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48Figure 48. STEVAL-IDP004V2 circuit schematic (10 of 11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Figure 49. STEVAL-IDP004V2 circuit schematic (11 of 11). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
AN5041List of figures
AN5041 - Rev 5 page 58/60
List of tablesTable 1. Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Table 2. Connector details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Table 3. STEVAL-IDP003V1 evaluation board bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Table 4. Sensor board bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Table 5. STEVAL-IDP004V2 bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Table 6. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
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