Freescale Semiconductor TWR-S12G240 User manual

Quick Start Guide
TWR-S12G240
Scalable Platform for
Automotive Applications
TOWER SYSTEM
AUTO—INFOTAINMENT

Quick Start Guide
Get to Know the TWR-S12G240
TWR-S12G240
Freescale Tower System
The TWR-S12G240 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.
Primary
Connector
External BDM
Connector
CAN Connector
LIN Connectors
Secondary
Connector
On-Board
OSBDM
Potentiometer
Optional External
Power Supply
Serial Port
(DB9 converter
cable included)
Push Buttons
LEDs

• S12G240seriesmicrocontroller(100-pinLQFP)
• On-boardJTAGconnectionviaopensource
OSBDMcircuitusingtheMC9S08JM60
microcontroller
See pemicro.com/osbdm for source code
• High-speedCANinterface
•LINinterface
•PotentiometerwithLPfilter
•LEDindicators
•RS-232serialcommunicationinterface
•SupportforUSBMultilinkInterfaceBDM
TWR-S12G240 Features

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-S12G240 board. Allow the
PC to automatically configure
the USB drivers if needed.
Quick Start Guide
4
Install Software
and Tools
Install CodeWarrior Development
Studio for S12 V5.1 or later
A 30-day evaluation license of
CodeWarrior is included on the
DVD for your convenience.
For updates, please visit
freescale.com/TWR-S12G240.
Step-by-Step Installation Instructions
In this quick start guide, you will learn how to set up the TWR-S12G240 board
and run the default exercise.
1 2

Learn More About
the S12G240
Read the release notes and
documentation on the DVD and at
freescale.com/S12G240.
• The Processor Expert graphical
initialization software included in
your CodeWarrior installation will
help reduce your time to market
• CodeWarrior for S12 with
examples
Using the
Example Project
The pre-loaded example project
utilizes the TWR-S12G240’s
potentiometer, push button
switches and LEDs. Once the
board is plugged in you can
adjust the potentiometer and
the bank of four LEDs should
illuminate/de-illuminate in
response. Each LED will toggle
when the corresponding push
button is pressed.
TOWER SYSTEM
5
3 4

Quick Start Guide
6
TWR-S12G240 Jumper Options
Jumper Option Setting Description
J1 USB to BDM
Interface 1-2 Drives IRQ/TPMCLK to ground
J2 CAN Enable 1-2 Enables CAN
J7 CANH - L
1-2 SPLIT termination to CAN-L line
3-4 SPLIT termination to CAN-H line
J13 UART/LIN
TRANSCEIVER
1-3 Connects PS1/TXD0 PS0 to TXD_LIN of LIN tranceiver
3-5 Connects PS1/TXD0 PS0 to T1in of RS-232 tranceiver
2-4 Connects PS0/RXD0 PS1 to RXD_LIN pf LIN tranceiver
4-6 Connects PS0/RXD0 PS1 to R1 out of RS-232
tranceiver
J15 LIN INTERFACE
1-2 Drives LIN V+ to J12 and J19 pin 3 plugs. Supply to
other nodes
3-4 LIN tranceiver set as Master node
The following is a list of all jumper options. The default installed jumper settings are
shown in white text within the blue boxes.

7
(continued from previous page)
Jumper Option Setting Description
J18 USER SWs and
LED Selection
1-2 Connect PAD4 pin to SW5
3-4 Connect PAD5 pin to SW4
5-6 Connect PAD6 pin to SW3
7-8 Connect PAD7 pin to SW2
9-10 Connect PAD0 to R23 potentiometer
11-12 Connect PT4 pin to D3 LED
13-14 Connect PT5 pin to D4 LED
15-16 Connect PT6 pin to D5 LED
17-18 Connect PT7 pin to D6 LED
J23 POWER
Selection
1-2 Selects the board to be powered from the 3.3V elevator
card rail
3-4 Selects the board to be powered from the 5V USB
connector
5-6 External source selected as power source
TOWER SYSTEM

For more information, visit freescale.com/Tower
Join the online Tower community at towergeeks.org
Visit freescale.com/TWR-S12G240 for information
on the TWR-S12G240, including:
•TWR-S12G240quickstartguide
•TWR-S12G240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.©2011FreescaleSemiconductor,Inc.
DocNumber:TWRS12G240QSGREV0
AgileNumber:926-78583REVA
Quick Start Guide