Freescale Semiconductor TWR-S12G64 Manual de usuario

Quick Start Guide

TWR-S12G64

Scalable Platform for

Automotive Applications

TOWER SYSTEM

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Quick Start Guide

The TWR-S12G64 module is a single board computer as well as part

of the Freescale Tower System, a modular development platform that

enables rapid prototyping and tool re-use through reconfigurable

hardware. Elevate your design to the next level and begin constructing

your Tower System today.

Secondary

Connector

CAN Connector

I/O Ring to

Allow Access

to All MCU

Pin Signals

LIN Connectors

Primary

Connector

On-Board

OSBDM

12-Volt Barrel

Connector

for External

Power

Serial Port

(DB9 converter

cable included)

LEDs

Two

Potentiometers

Push Buttons

TWR-S12G64

Freescale Tower System

TWR-S12G64 Features

• S12G64 microcontroller (48-pin LQFP)

• On-board JTAG connection via open source OSBDM

circuit using the MPC9S08JM microcontroller

Visit pemicro.com/osbdm for source code

• High-speed CAN interface

• LIN interface

• Potentiometer with LP filter

• LED indicators

• RS-232 serial communication interface

Get to Know the TWR-S12G64

TOWER SYSTEM

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Quick Start Guide TOWER SYSTEM

4 5

Step-by-Step Installation Instructions

In this quick start guide, you will learn how to set up the

TWR-S12G64 board and run the default exercise.

Connect the

USB Cable

Connect one end of the USB

cable to the PC and the other end to the

mini-B connector on the TWR-S12G64

board. Allow the PC to automatically

configure the USB drivers if needed.

Verify JP5 has a jumper installed to

connect three and four pins.

Learn More

About the S12G64

Read the release notes and

documentation on the DVD or at

freescale.com/S12G.

• The Processor Expert graphical

initialization software included in your

CodeWarrior installation will help

reduce your time to market

• CodeWarrior for S12 with examples

Install Software

and Tools

• Install CodeWarrior Development

Studio for S12 V5.1 or later

• Install CodeWarrior service pack

for S12G64

• Install CodeWarrior service pack for

S12G Processor Expert support

A 30-day evaluation license of CodeWarrior is

included on the DVD for your convenience. For

updates, please visit freescale.com/TWR-S12G64.

Connect the

UART Cable

Connect DB9 cable adapter to J5 and

attach to PC’s serial port (requires

HyperTerminal to monitor TWR-S12G64

demo communications: 9600 BR, 8-bit,

no parity, one stop bit, no HW control),

verify two jumpers are installed at JP2

connecting 3-5 and 4-6. Verify 10

jumpers are installed at JP1 connecting

1-2, 3-4, 5-6, 7-8, 9-10, 11-12, 13-14,

15-16, 17-18 and 19-20.

Using the

Example Project

The pre-loaded example project utilizes

the TWR-S12G64’s potentiometer 1,

push button switches and LEDs. Once

the board is plugged in, you can adjust

potentiometer 1 and the bank of four LEDs

should increase/decrease the toggling

speed in response. Each LED will be turned

off while the corresponding push button is

pressed. The value of the RV1 value can be

monitored in the HyperTerminal window.

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TOWER SYSTEM

Quick Start Guide

TWR-S12G64 Jumper Options

The following is a list of all jumper options. The default installed jumper settings are

shown in white text within the blue boxes.

Jumper Option Setting Description

JP1

USER SWs,

RVs and LED

Selection

1-2 Connect PAD4 pin to SW1

3-4 Connect PAD5 pin to SW2

5-6 Connect PAD6 pin to SW3

7-8 Connect PAD7 pin to SW4

9-10 Connect PAD10 to RV1 POT1

11-12 Connect PAD11 to RV2 POT2

13-14 Connect PP0 pin to LED1

15-16 Connect PP1 pin to LED2

17-18 Connect PP2 pin to LED3

19-20 Connect PP3 pin to LED4

JP2

LIN TX Enable 1-3 Routes SCI (TXD0) signal to be output by LIN

transceiver, chip (U4) at J6 and J7

LIN RX Enable 2-4 Routes SCI (RXD0) signal to be output by LIN

transceiver, chip (U4) at J6 and J7

UART TX Enable 3-5 Routes SCI (TXD0) signal to be output by RS232 chip

(U3) at J5

UART RX Enable 4-6 Routes SCI (RXD0) signal to be output by RS232 chip

(U3) at J5

Jumper Option Setting Description

JP3 LIN POWER

1-2 12 volts for LIN bus

3-4 12 volts for LIN transceiver

JP4 CAN PWR 1-2 CAN tranceiver power enable

JP5 PWR Selector

1-2 Selects the board to be powered from the 3.3-volt

elevator card rail

3-4 Selects the board to be powered from the 5-volt

USB connector

5-6 External source selected as power source

JP6 CAN (H/L)

1-2 SPLIT Termination to CAN - H line

3-4 SPLIT Termination to CAN - L line

TWR-S12G64 Jumper Options (continued)

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For more information, visit freescale.com/Tower

Join the online Tower community at towergeeks.org

Visit freescale.com/TWR-S12G64 for information

on the TWR-S12G64, including:

• TWR-S12G64 quick start guide

• TWR-S12G64 board schematics

Freescale, the Freescale logo and CodeWarrior are trademarks or registered

trademarks of Freescale Semiconductor, Inc. Reg. U.S. Pat. & Tm. Off.

Processor Expert is a trademark of Freescale Semiconductor, Inc. All other

product or service names are the property of their respective owners.

Doc Number: TWRS12G64QSG REV 0

Agile Number: 926-78643 REV A

Quick Start Guide

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