ECE 477 Design Review ECE 477 Design Review Group 9 Group 9 Fall 2005 Fall 2005

Paste a photo of team members here, annotated with names of team members.

Tim Miller Clif Barnes Drew Heinrich Steven Kady

OutlineOutline• Project overview Project overview • Project-specific success criteriaProject-specific success criteria• Block diagramBlock diagram• Component selection rationaleComponent selection rationale• Packaging designPackaging design• Schematic and theory of operationSchematic and theory of operation• PCB layoutPCB layout• Software design/development statusSoftware design/development status• Project completion timelineProject completion timeline• Questions / discussionQuestions / discussion

Project OverviewProject Overview

• Automated Pill dispensing system that Automated Pill dispensing system that delivers pills based upon a schedule.delivers pills based upon a schedule.

• Can be monitored and controlled remotely Can be monitored and controlled remotely via a web interface.via a web interface.

• Able to be controlled locally using an optical Able to be controlled locally using an optical rotary encoder and LCD screen.rotary encoder and LCD screen.

Project-Specific Success CriteriaProject-Specific Success Criteria• Ability to dispense pills using a mechanical Ability to dispense pills using a mechanical

system, under the control of a microcontroller system, under the control of a microcontroller through PWM through PWM

• Ability to Display current status of system using Ability to Display current status of system using LCD and LEDs LCD and LEDs

• Ability to alert the user when pills have been Ability to alert the user when pills have been dispensed through audible and visible alarmdispensed through audible and visible alarm..

• Ability to dispense pills based on a user defined Ability to dispense pills based on a user defined schedule. schedule.

• Ability to control device/change settings through Ability to control device/change settings through Ethernet with embedded web server Ethernet with embedded web server

Block DiagramBlock Diagram

MC9S12NE64

LCD Display

Rotary Interface

Sensors

Web Interface

Dispensing Mechanism

User Control

TCP/IP

Motor Control

Status Data

Motor Position Data

Component Selection Rationale Component Selection Rationale • MicrocontrollerMicrocontroller

– Freescale MC9S12NE64CPVFreescale MC9S12NE64CPV• Ethernet connectivityEthernet connectivity• ExpandabilityExpandability• Power ConsumptionPower Consumption• Familiarity with ArchitectureFamiliarity with Architecture

• Stepper MotorStepper Motor– 403-1014-ND 403-1014-ND

• SizeSize• PrecisionPrecision

Packaging DesignPackaging Design• DurabilityDurability• SecuritySecurity

Schematic/Theory of OperationSchematic/Theory of Operation

+3.3VDC

D39

DIODE

C51.34uF

Vin1

Vout3

GND

2GN

D_T

4U20

MIC39100-WS

Vin1

Vout3

GND

2GN

D_T

4U19

MIC39100-WS

12

J8

9VDC

BT19V

9VDC Wall Wart

0.447uF

.447uF

D46

DIODE

D47

DIODE

+5VDC

•Power Circuit•9VDC Wall Wart•2 Low Dropout Regulators

•3.3V Regulated Output•5.0V Regulated Output•Battery Backup

Schematic/Theory of OperationSchematic/Theory of Operation

+5VDC

PA7/PA6

R12

10K

D48

DIODE

D53

DIODE

+5V

Coil B22

+5Va3

+5V4

GND5

Free Spin(*)6

DIR(*)7

Half-Step(*)8

Step(*)9

Coil A118

Coil A217

OSC116

OSC215

+5Vb14

C(*)13

B(*)12

A(*)11

Run(*)10

Coil B11

U10

EDE1204

D40

DIODE

+5V

1234

JP1

HEADER 4

D49

DIODE

1 2 3

6 5 4

SW3SW DIP-3

D41

DIODE

R1310K

Chip Inhibit1

Input 12

Output 13

GNDa4

GND5

Output 26

Input 27

Vc8

Vs s16

Input 415

Output 414

GNDb13

GNDc12

Output 311

Input 310

Chip Inhib it 29

U12

LD293R1410K

R2110K

D50

DIODER1510K

D51

DIODE

VCC

D52

DIODE

PK7

•Stepper Motor Control•2 Bipolar Stepper Motors•Use Motor Control IC coupled with a Dual H-Bridge•Use of Flyback Diodes to suppress current during coil switching•Dip Switch to manually choose motor speed

Schematic/Theory of OperationSchematic/Theory of Operation• User InterfacingUser Interfacing

R93.3K

PG4

+5V

PG3PG2

R103.3K

GND1PSHBTTN_12PSHBTTN_23OUT_A4OUT_B5+5V6

S1

GH6101-ND

PB5

PB1

PB6

R26

PB7

+5VDC

R2510K

PB2PB3

PJ1

+5VDC

PJ0

12345678910111213141516

J2

LCD HEADER

+5VDC

PB4

PB0

PH0

10K

LCD Interfacing

Optical Rotary Switch

Schematic/Theory of OperationSchematic/Theory of Operation

• Microcontroller CircuitMicrocontroller Circuit

C7

0.44uF

C110.22uF

3.3V

C8

0.22uF

MII_TXER/KWH6/PH61

MII_TXEN/KWH5/PH52

MII_TXCLK/KWH4/PH43

MII_TXD3/KWH3/PH34

MII_TXD2/KWH2/PH25

MII_TXD1/KWH1/PH16

MII_TXD0/KWH0/PH07

MII_MDC/KWJ0/PJ08

MII_MDIO/KWJ1/PJ19

ADDR0/DATA0/PB010

ADDR1/DATA1/PB111

ADDR2/DATA2/PB212

ADDR3/DATA3/PB313

VDDX114

VSSX115

ADDR4/DATA4/PB416

ADDR5/DATA5/PB517

ADDR6/DATA6/PB618

ADDR7/DATA7/PB719

MII_CRS/KWJ2/PJ220

MII_COL/KWJ3/PJ321

MII_RXD0/KWG0/PG022

MII_RXD1/KWG1/PG123

MII_RXD2/KWG2/PG224

MII_RXD3/KWG3/PG325

MII_RXCLK/KWG426

MII_RXDV/KWG5/PG527

MII_RXER/KWG6/PG628

KWG7

/PG7

29

SCI0

_RXD

/PS0

30

SCI0

_TXD

/PS1

31

SCI1

_RXD

/PS2

32

SCI1

_TXD

/PS3

33

SPI_

MIS

O/PS

434

SPI_

MOS

I/PS5

35

SPI_

SCK/

PS6

36

SPI_

SS(*)

/PS7

37

NOAC

C/PE

738

MOD

B/IP

IPE1

/PE6

39

MOD

A/IP

IPE0

/PE5

40

ECLK

/PE4

41

VSSX

242

VDDX

243

RESE

T(*)

44

VDDP

LL45

XFC

46

VSSP

LL47

EXTA

L48

XTAL

49

TEST

50

PL6

51

PL5

52

LSTR

B(*)/

TAGL

O(*)/

PE3

53

R/W

(*)/P

E254

IRQ(

*)/PE

155

XIRQ

(*)/P

E056

PL0/ACTLED84

PL1/LNKLED83

VDDR82

PL2/SPDLED81

PA7/ADDR15/DATA1580

PA6/ADDR14/DATA1479

PA5/ADDR13/DATA1378

PA4/ADDR12/DATA1277

PHY_VSSRX76

PHY_VDDRX75

PHY_RXN74

PHY_RXP73

PHY_VSSTX72

PHY_TXN71

PHY_TXP70

PHY_VDDTX69

PHY_VDD268

PHY_VSSA67

PHY_RBIAS66

VDD265

VSS264

PA3/ADDR11/DATA1163

PA2/ADDR10/DATA1062

PA1/ADDR9/DATA961

PA0/ADDR8/DATA860

PL3/DUPLED59

PL4/COLLED58

BKGRD/MODC/TAGHI(*)57

PJ6/

KWJ6

/IIC_

SDA

112

PJ7/

KWJ7

/IIC_

SCL

111

PT4/

TIM

_IOC

411

0

PT5/

TIM

_IOC

510

9

PT6/

TIM

_IOC

610

8

PT7/

TIM

_IOC

710

7

PK7/

ECS(

*)/RO

MCT

L10

6

PK6/

XCS(

*)10

5

PK5/

XADD

R19

104

PK4/

XADD

R18

103

VDD1

102

VSS1

101

PK3/

XADD

R17

100

PK2/

XADD

R16

99

PK1/

XADD

R15

98

PK0/

XADD

R14

97

VSSA

96

VRL

95

VRH

94

VDDA

93

PAD7

/AN7

92

PAD6

/AN6

91

PAD5

/AN5

90

PAD4

/AN4

89

PAD3

/AN3

88

PAD2

/AN2

87

PAD1

/AN1

86

PAD0

/AN0

85

MC9S12NE64CPV

U1

C20

0.22uF

C9

0.22uF

SW1

RESET

Y1

25 MHz

R2312.4K

R810K

C13

.22uF

3.3

R24

10K

3.3V

246

135

J7

BDM HEADER

R7

10M

C14470pF

C1615pF

C154700pF

C1715pF

C1

0.44uF

R62.2K

Schematic/Theory of OperationSchematic/Theory of Operation

• Ethernet InterfaceEthernet Interface– Utilizes NE64 onboard control signalsUtilizes NE64 onboard control signals– Magnetically Isolated RJ45 JackMagnetically Isolated RJ45 Jack

PHY_TXP

Ethernet Controller

C12

C

RD+

3.3VPHY_RXN

R2

49.9

R3

49.9RD-

PHY_RXP

RCT

TCT

TD-

TD+

PHY_TXN

TCT1

TD+2

TD-3

RD+4

RD-5

RCT6

LED1_AN7

LED1_CA8

LED2_AN9

LED2_CA10

RJ45 Jack

0810-1G1T-06

R27

49.9

R28

49.9

Schematic/Theory of OperationSchematic/Theory of Operation

• Feedback CircuitsFeedback Circuits

– 5 IR Sensors5 IR Sensors• 2 Spindle Position 2 Spindle Position

sensorssensors• 2 Spindle Drop 2 Spindle Drop

sensorssensors• Bin Full sensorBin Full sensor

4

3

1

2

A1

OPI1264B

4

3

1

2

A2

OPI1264B

4

3

1

2

A3

OPI1264B

4

3

1

2

A4

OPI1264B

R2210K

VCC

4

3

1

2

A5

OPI1264B

PA4

PA0

PA1

PA2

PA3

Spindle Drop Sensor

Spindle Drop Sensor

Bin Full Sensor

Spindle Position Sensor

Spindle Position Sensor

PCB LayoutPCB Layout

Software Design/Development StatusSoftware Design/Development Status

• Software DesignSoftware Design– Writing in C using Code WarriorWriting in C using Code Warrior– Command and Interrupt DrivenCommand and Interrupt Driven

• Development StatusDevelopment Status– Under ConstructionUnder Construction

• Motor ControlMotor Control• Web ServerWeb Server• Timing / SchedulingTiming / Scheduling

Project Completion TimelineProject Completion Timeline

• Software Software - 9 November- 9 November– Web ServerWeb Server - 9 November- 9 November– SchedulerScheduler - 2 November- 2 November– Motor ControlMotor Control - 26 October- 26 October

• PCBPCB - 2 November- 2 November• IntegrationIntegration - 16 November- 16 November• PackagingPackaging - 22 November- 22 November

Questions / DiscussionQuestions / Discussion