ST ARMIC30 Manual de usuario

April 2006 Rev 2 1/35

UM0193

User manual

Getting Started with the ARMIC30 Evaluation Board

(ARM Core-based Industrial Controller using STR730 MCU)

Introduction

This user manual describes the implementation of the ARMIC30 Evaluation Board. The

ARMIC30 can be used to evaluate a variety of devices, especially microcontrollers, with the

added advantage that all pins are available on logically structured and well-documented

header pins.

Applications are based on 32-bit STR730F microcontroller that uses a powerful ARM7TDMI

core providing an extensive range of peripheral functions and enhanced I/O capabilities.

The ARMIC30 is equipped with RS-232, RS-485, CAN, SPI, I²C and JTAG communication

interfaces.

The evaluation board also includes digital input/output connectors and three motor control

connectors with a pinout compatible with PowerSpin evaluation boards (supporting L6205,

-6, -7, -8, and L6235 integrated motor drivers). The output interface is compatible with

VN808 and VN340 Reference Design Boards and the input interface can be used for CLT3-

4BT6 or PCLT-2A evaluation board connections.

Applications can be supplied from a standard DC power supply (7 to 30V DC) or directly

using a 24V DC industrial mains supply.

Complete solution is implemented on double-face board with only two copper layers for

increased cost-effectiveness. Routing accuracy is also cost-optimized.

The ARMIC30 evaluation board package includes a CD-ROM containing the standard

STR730 software library, source code examples, board fabrication data (Gerber files), this

user manual and other related documentation.

Key Features

■32-bit STR730FZ2T7 microcontroller with 36-MHz ARM7TDMI CPU core

■RS-232 interface with 15kV guaranteed ESD protection using ST202E transceiver

■RS-485 interface using ST485A high-speed transceiver with bit rates up to 30 Mbps

■L9616 high-speed CAN driver with communication speeds up to 1 Mbps

■SPI and I²C communication connectors

■8-bit digital input/output connectors

■3 Motor Control connectors

■STM811 small reset circuit

■Power supply using L5973AD DC/DC converter

■6 to 30V DC supply voltage range

www.st.com

Contents UM0193

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Contents

1 Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1 RS-232 interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.2 RS-485 interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.3 CAN interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.4 SPI interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.5 I²C interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.6 JTAG interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.6.1 JTAG supply voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.7 General purpose connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.7.1 General purpose input connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.7.2 General purpose output connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.7.3 General purpose motor control connectors . . . . . . . . . . . . . . . . . . . . . . 12

1.8 LED indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.9 Power supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1.10 Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1.11 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1.12 Boot mode selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2 Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3 Electrical specifications and timings . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Appendix A ARMIC30 board layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Appendix B ARMIC30 schematic diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Appendix C Jumper settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Appendix D Bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

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1 Hardware

The ARMIC30 Evaluation Board is designed to evaluate and develop Industrial Controller

(IC) applications that use several different communication interfaces as shown in Figure 1.

Figure 1. ARMIC30 Communication interfaces

The ARMIC30 comes on a double-face printed circuit board with only two copper layers.

Circuit routing is Class 5 accuracy meaning that the smallest route/isolation distance is 8 mil

(0.2032 mm) and the smallest hole diameter is 20 mil (0.5080 mm). Board dimensions are

132 x 116 mm.

Figure 2. ARMIC30 board presentation

Ai11696

STR730F

MCU

RS-232

ST202E

RS-485

ST485A

CAN

L9616

SPI

I²C

JTAG

UART0

UART1

CAN0 JTAG

I2C0

BSPI0

8-MHz

Crystal

MCU Reset

RS-485

Connection

CAN

Connection

I²C

Connection

Standard

Power Supply

Connection

Power Supply

Industrial Bus

RS-232

Connection

SPI

Connection Input GP

Connection Output GP

Connection

GP PowerSpin

Connections JTAG

Connection

STR730

MCU

User

LEDs

Hardware UM0193

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1.1 RS-232 interface

The ST202E Transceiver ensures RS-232 communication through the UART0 serial

channel of the STR730F microcontroller as shown in Figure 4.

The maximum speed of this interface is 230 Kbps.

The UART0 channel can be used for simple communication and internal Flash memory

programming (for example, when using the RFLASHER application from Raisonance).

A male, 9-pin D-Sub connector (J8) provides the RS-232 connection. For correct

interconnection with a PC, a “null-modem” cable (crossed Rx | Tx signals) should be used.

Jumper 35 can be used to select Loop mode (for testing purposes) as described in

Appendix C: Jumper settings.

Figure 3. RS-232 (J8), RS-485 (J12) and CAN (J15) connector pinout

Figure 4. RS-232 schematic diagram

Table 1. RS-232 Connections

J8 Pin Signal STR730F MCU Peripheral

2 RxD (Receive Data) Port 6.8 UART0

3 TxD (Transmit Data) Port 6.9 UART0

5GND

1, 4, 6 to 9 Not connected

Shielding Connected to GND by R24 || C23 (100 kΩ|| 4.7 nF)

1 234 5

6789

1 234 5

6789

RS-485 RS-232 and CAN

ETXD0

ERXD0

TxD 232

RxD 232

1 2

J35

R22

10k

R22

10k

R24 M1

C21

100n

C21

100n

R23 0R

C24

100n

C20

100n

C1+

C1-

C2+

C2-

V+ 2

V- 6

R1OUT

R2OUT

T1IN

T2IN

R1IN 13

R2IN 8

T1OUT 14

T2OUT 7

ST202E

C23

4n7/500V

00n

C22

100n

C19

100n

C19

100n

DSUB9-Plug

Ai11693

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1.2 RS-485 interface

The ST485A Transceiver ensures RS-485 communication through the UART1 serial

channel of the STR730F microcontroller as shown in Figure 5.

The maximum speed of this interface is greater than 30 Mbps.

A female, 9-pin D-Sub connector (J12) provides the RS-485 connection using a standard

Profibus pinout.

The RS-485 channel can be terminated using jumpers J10 and J13 as described in

Appendix C: Jumper settings. Terminating resistors R25, R26 and R28 are selected for a

Type-A Profibus DP cable as shown in Figure 5. These resistors can be replaced with

different values depending on the physical layer implemented.

Figure 5. RS-485 schematic diagram

Table 2. RS-485 Connections

J12 Pin Signal STR730F MCU Peripheral

RxD (Receive Data) Port 2.9 UART1

TxD (Transmit Data) Port 2.8 UART1

DE (Driver Enable) Port 2.10 UART1

5GND

1, 2, 4, 7 and 9 Not connected

Shielding Connected to GND by R31 || C26 (100 kΩ|| 4.7 nF)

Ai11694

TxD485

RxD 485

nDE485

R26 220R

R2 220R

R30 0RR30 0R

1 2

J10J10

R28

390R

R28

390R

1 2

J13J13

R29 0RR29 0R

J11J11

R27

390R

R27

390R

J12

1DI

GND 5

VCC 8

2DE

3A6

ST485A

R31 M1R31 M1

C25

100n

C25

100n

R25

390R

R25

390R

C26

4n7/500V

C26

4n7/500V

DSUB9 - Socket

Hardware UM0193

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1.3 CAN interface

The L9616 High-Speed Transceiver provides the Controller Area Network (CAN)

communication interface through the CAN0 channel of the STR730F microcontroller.

This serial communication can reach speeds up to 1Mbps.

A male, 9-pin D-Sub connector (J15) provides the CAN connection. The CAN channel can

be terminated with a 120Ω resistor using jumper J14 as described in Appendix C: Jumper

settings. The L9616 CAN transceiver has an Adjustable Slope Control (ASC) feature that

sets the slope speed using its ASC pin. This pin can be either hard-connected high or low

using zero-ohm resistors or it can be controlled by MCU Port 2.0 as shown in Figure 6.

Table 4 describes the resistor assembly and control pin signal levels for CAN

communications.

Figure 6. CAN schematic diagram

Table 3. CAN Connections

J15 Pin Signal STR730F MCU Peripheral

RxD (Receive Data) Port 1.14 CAN0

TxD (Transmit Data) Port 1.15 CAN0

ASC (Adjustable Slope Control) Port 2.0 CAN0

2 CAN Low differential data

7 CAN High differential data

3 Shorted to 6. Connected to GND by R35 / 0Ω

6 Shorted to 3. Connected to GND by R35 / 0Ω

1, 4, 5, 8 and 9 Not connected

Shielding Connected to GND by R36 || C28 (100 kΩ|| 4.7 nF)

Ai11695

C28C28

RR36 M1

RR35 0R

1 2

DSUB9 - Plug

4n7/500V

C27

100 nF

RX1_Ref

CAN_L

CAN_H

TX0

RX0

ASC

GND

L9616

R34

R33 120R J14 J15

R32

TxD CAN

RxD CAN

ASC CAN

UM0193 Hardware

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Note: 1 If using a resistor assembly (hardware option), the correct MCU signal must be set as an

input!

2 Do not assemble both resistors as this will short-circuit the supply voltage!

1.4 SPI interface

A 10-pin connector (J18) provides the Serial Peripheral Interface (SPI) through the BSPI0

channel of the STR730F microcontroller as shown in Figure 7.

Connector J18 also provides additional general purpose signals that are primarily used as

Watchdog (WD) and Slave Chip Select (SSn) lines.

Figure 7. SPI connector pinout

Table 4. CAN slew rate settings

Speed Slew Rate (V/µs) MCU SIgnal Signal Level Resistor

Low 5 to 20 P2.0 High R32

High 20 to 50 Low R34

Table 5. SPI Connections

J18 Pin Signal STR730F MCU Peripheral

1GND

2+5VDC

3 MOSI (Master Output/Slave Input) Port 6.12 BSPI0

4 MISO (Master Input/Slave Output) Port 6.11 BSPI0

5 SCK (Serial Clock) Port 6.13 BSPI0

6 WD Port 0.12 GPIO

7 SS0 (Slave Select 0) Port 6.14 BSPI0

8 SS1 (Slave Select 1) Port 0.13 GPIO

9 SS2 (Slave Select 2) Port 1.12 GPIO

10 SS3 (Slave Select 3) Port 1.13 GPIO

Hardware UM0193

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1.5 I²C interface

A 10-pin connector (J28) provides the Inter-Integrated Circuit (I²C) through the I2C0 channel

of the STR730F microcontroller as shown in Figure 8.

Connector J28 also provides additional general purpose signals (GP0, GP1 and GP2).

Figure 8. I²C connector pinout

1.6 JTAG interface

A 20-pin connector (J7) provides the JTAG interface as shown in Figure 9.

This interface is primarily used for communicating with a PC using suitable converter box

such as J-Link from IAR Systems or R-Link from Raisonance, etc. There exists a wide

choice of development tools on the market supporting microcontroller Flash memory

programming and application debugging.

Figure 9. JTAG connector pinout

Table 6. I²C Connections

J28 Pin Signal STR730F MCU Peripheral

1GND

2+5VDC

3 SDA (Serial Data) Port 2.15 I2C0

4 Not connected

5 SCL (Serial Clock) Port 2.14 I2C0

6 Not connected

7 GP0 Port 3.2 GPIO

8 GP1 Port 3.1 GPIO

9 GP2 Port 3.0 GPIO

10 Not connected

10 12 14

11 13 15

16 18 20

17 19

UM0193 Hardware

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Figure 10. JTAG schematic diagram

1.6.1 JTAG supply voltages

A +3.3V DC supply voltage placed on pins 1 and 2 is provided by the DC/DC converter (U6)

reference pin or a separate linear voltage regulator (U7). Please verify the consumption of

any device (for example, converter box) connected to this connector. According to the

device datasheet, the reference pin can deliver a maximum current of 5mA, providing an

accurate voltage level. If the consumption is higher, select the linear voltage regulator (U7)

for the supply connector using jumper J33 as described in Appendix C: Jumper settings.

Certain converter boxes provide a +5V DC supply voltage for the JTAG interface. The new

generation J-link from IAR Systems (the yellow one) provides the supply voltage on pin

number 19. For applications using supplies from the converter box, connect a wire from pin

number 19 of the JTAG (J7) connector to closest +5V DC supply point (for example, J19

right pin). For JTAG communication functions, jumper J32 must be connected and jumper

J33 set to the "lin" position when a +5V DC voltage supply is used.

Caution: Using a supply from a converter box is not recommended for application development or

testing. Accidental short-circuits may damage USB host or converter box circuits.

Table 7. JTAG connections

Pin Signal Pin Signal

1 +3.3V DC 2 +3.3V DC

3JTRST 4GND

5JTDI 6GND

7JTMS 8GND

9JTCK 10GND

11 Connected to GND by R18 (10kΩ)12GND

13 JTDO 14 GND

15 RESET 16 GND

17 Connected to GND by R20 (10kΩ)18GND

19 Connected to GND by R21 (10kΩ)20GND

Ai11699

1 2

3 4

5 6

7 8

910

11 12

13 14

15 16

17 18

19 20

3V3 3V3 3V3 3V3 3V3 3V3

3V3

C51

100 nF

3V3

C18

100 nF

3V3

C52

10M/16V

CON20A

3V3 J7

R18

10k R19

10k R20

10k R21

10k

BZX84C3V3/SOT

R17 430R

nJTRST

JTDI

JTMS

JTCK

JTDO

nRST_EXT

R11

10k

R12

10k R13

10k R14

10k R15

10k

R16

10k

Hardware UM0193

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1.7 General purpose connectors

The ARMIC30 Evaluation Board provides two 8-bit general purpose I/O connectors (J17

and J27) and three general purpose motor control connectors (J20, J22 and J24) that can

be used with current or future extension modules included in STMicroelectronics’ offer

(VN340 / VN808 / VN808CM Reference design boards, CLT3-4BT6 / PCLT-2A test boards,

PowerSpin family of motor control drivers evaluation boards, etc.) or other applications

developed by customers.

1.7.1 General purpose input connector

Jumpers J16 and J25 configure the supply voltage for the 8-bit input connector as described

in Appendix C: Jumper settings. The GP input connector is compatible with Current Limited

Termination (CLT) and Programmable Current Limited Termination (PCLT) applications.

Figure 11. GPIO input connector pinout

Table 8. 8-bit Input GPIO Connections

J17 Pin Signal STR730F MCU Peripheral

1 +5V DC connected by jumper J16

2 GND connected by jumper J25

3 D7 Port 0.7 GPIO

4 D6 Port 0.6 GPIO

5 D5 Port 0.5 GPIO

6 D4 Port 0.4 GPIO

7 D3 Port 0.3 GPIO

8 D2 Port 0.2 GPIO

9 D1 Port 0.1 GPIO

10 D0 Port 0.0 GPIO

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