Chapter 1
SPNU567 – September 2012
Introduction
The RM42L432 HDK is a low cost and easy to use hardware and software platform for evaluating the
functionality of the Texas Instruments RM42L432 microcontroller family. Project collateral, schematics and
PCB layouts discussed in this application report can be downloaded from the following URL:
(
http://processors.wiki.ti.com/index.php/RM42_HDK_Kit
).
1.1
Scope of Document
This user guide will list the contents of the development kit, point out the features of the major
components, and provide the instructions necessary to verify your development kit is in working order. Any
additional usage instructions or details fall outside the scope of this document. Additional resources are
listed at the end of this user guide.
1.2
RM42 HERCULES Development Kit (HDK) Features
The HDK comes with a full complement of on board devices that suit a wide variety of application
environments. Key features include:
•
A Hercules RM42L432 100-pin QFP microcontroller
•
Integrated USB JTAG emulator (XDS100v2)
•
External JTAG headers ( ARM
®
20 pin and TI compact 20-pin CTI)
•
One DIP switch to select pull-up or pull-down for JTAG nTRST
•
Two CAN transceivers (SN65HVDA541Q1) and screw terminal blocks
•
One ambient light sensor
•
One ambient temperature sensor
•
Microcontroller’s serial communications interface (SCI) universal asynchronous receiver/transmitter
(UART) accessible through a USB virtual COM port
•
Four user programmable white LEDs
•
One user programmable pushbutton
•
Three expansion connectors for hardware prototyping
•
Reset and power-on reset pushbuttons (nRST and nPORRST)
•
One pushbutton simulating external oscillator failure
•
One Jumper to select clock source for MCU: crystal or crystal oscillator
•
One crystal socket (HC-18)
•
One SD card slot (SPI mode)
•
Current measurement capability for 3.3 V IO, 3.3 V analog-to digital converter (ADC) and, 1.2 V core
voltage
•
May be powered by USB or an external power supply in case additional power is required (for
expansion boards)
•
Accepts an external power supply b5 V and +12 V
5
SPNU567 – September 2012
Introduction
Copyright © 2012, Texas Instruments Incorporated
