Freescale Semiconductor TWR-S12GN32 User manual

TOWER SYSTEMQuick Start Guide for TWR-S12GN32
TWR-S12GN32
Scalable platform for
automotive applications

TOWER SYSTEM
Get to Know the TWR-S12GN32
TWR-S12GN32
Freescale Tower System
The TWR-S12GN32 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
Headers
LIN Connectors
Primary
Connector
Optional BDM
Connecctor
On-Board
OSBDM
Optional External
Power Supply
Serial Port
Potentiometer
Push Buttons
LEDs

TOWER SYSTEMQuick Start Guide for TWR-S12GN32
Install Software
and Tools
•InstallCodeWarriorDevelopment
Studio for S12 v5.1 or later
A30evaluationlicenseofCodeWarriorisincluded
ontheDVDforyourconvenience.Forupdates,
please visit freescale.com/TWR-S12GN32.
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-S12GN32
board.AllowthePCtoautomatically
configuretheUSBdriversifneeded.
• S12GN32seriesmicrocontroller
(48-pin LQFP)
• On-boardJTAGconnectionviaopen
sourceOSBDMcircuitusingthe
MPC9S08JM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
Step-by-Step Installation Instructions
TWR-S12GN32 Features
In this Quick Start Guide, you will learn how to set up the
TWR-S12GN32 board and run the default exercise.
STEP
1
STEP
2

Using the
Example Project
The pre-loaded example utilizes the TWR-
S12GN32’s push button switches, serial
communicationsinterfaceandLEDs.
Oncetheboardispluggedinyoucan
controlthebankoffourLEDsbypushing
one of the four on-board push buttons
(SW1–4).Connecttheincludedserial
adaptertoJ8andstartaterminalinyour
computer(9600bauds,eightdatabits,
one stop bit, no parity). You should see
the keystrokes echoed by the device.
Learn More About the
S12GN32
Release notes and documentation are
availableontheDVDand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
TOWER SYSTEM
STEP
4
STEP
3

TOWER SYSTEMQuick Start Guide for TWR-S12GN32
TWR-S12GN32 Jumper Options
The following is a list of all jumper options.
Jumper Option Setting Description
JP2 Option Header
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 POT
11-12 Connect PT2 pin to LED1
13-14 Connect PT3 pin to LED2
15-16 Connect PT4 pin to LED3
17-18 Connect PT5 pin to LED4
JP1 COM_EN
3-5, 4-6 Connects target MCU SCI port to RS-232 PHY to
enable LIN bus communications
1-3, 2-4 Connects target MCU SCI port to LIN PHY to enable
LIN bus communications
J3 BDM_PORT 1-2 Ground
3-4 Reset
JP401 Bootloader 1-2 Not populated. Enables bootloader at startup.

TOWER SYSTEM
TWR-S12GN32 Jumper Options (continued from previous page)
The following is a list of all jumper options.
Jumper Option Setting Description
JP4 PWR_SEL
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 USB 5V
(OSBDM)
5-6 Selects the board to be powered from externally
provided power source on E1 and E2
JP3 LIN_PWR 1-2 Connect LIN bus to +V input
3-4 Enables LIN Master mode functionality

TOWER SYSTEMQuick Start Guide for TWR-S12GN32

TOWER SYSTEM
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:TWRS12GN32QSG/REV0
AgileNumber:926-26647/REVA
To learn more, please visit freescale.com/Tower or freescale.com/TWR-S12GN32.
TOWER SYSTEM