JTAG Programmer/Debugger for ARM processors

sku: PGM-00275

Description: JTAG Programmer and Debugger for LPC and ARMmicrocontrollers.

• Program LPC21xx, Atmel AT91, STMicroelectronics STR7 Parts, and other (not tested) ARM flash microcontrollers
• Uses ARM's standard 2x10 pin JTAG connector
• No external power supply required - all power is taken from the targetboard
• Compatible with Rowley's CrossConnect, IAR EWARM and GCC (OCD) softwarefor programming, real time emulation, debugging, step by step programexecution, breakpoints, memory dump etc. Everything a high priced emulator cando and more!
• IAR EWARM - unlimited assembler code size or in C with 16K limit for allLPC21xx ARM microcontrollers
• Works with free GCC C compiler and Insight tool chain and debugger.

Documents: ARM-JTAG.pdf, ARM JTAG Connector
Dimensions: 2x1.6" (50x40 mm) + 8" (20 cm) cable

Software: Please take a look at our support forum for further discussions on software compatibility and support for the ARM-JTAG.

In general, LPC21xx are very new parts. And for some unknown reason, Philipsdoesn't disclose how to program LPC21xx Flash via JTAG. This has delayed thedevelopment of third party IDEs. Perhaps Philips is having problems with theFlash programming and is going to change the protocol in future. This iscurrently why they force end users to use their bootloader IAP protocol. Theonly vendor so far to work around this is Rowley. They first load in RAM smallown bootloader which then receives data from the JTAG interface and feeds thepackets into IAP to write to Flash segments. This is current the easiest to useproduct for the LPC21xx parts.

• Jim Lynch's tutorial for setting up the free GCC/GNU tool chain. The example softwareis available here.
• GCC C compiler fromMacraigor Systems. Works smoothly with ARM-JTAG but can't program Flash anduser can compile debug programs in RAM then re-build for Flash and usePhilips' RS232 bootloader.
• GNUARM another GCC toolchain from Arius.
• CrossWork for ARM(so far most recommended by us) C compiler and debuger from Rowley Associates,this is the easiest to use package we have tested, works smoothly withARM-JTAG and programs both Flash and RAM on LPC21xx
• EWARM C compiler anddebugger (free for assembly language, 16K limit for C) from IAR Systems. Can'tprogram LPC21xx Flash, user can debug and program only in RAM, then re-buildproject and use Philips' ISP utility to load the program through RS232bootloader. C-SPY driver for ARM-JTAG have some glitches on newer and fastercomputers and does several crashes before connect to target. It works fine onolder and slower computers though. According to IAR, they are going to fixthis to the end of February 2004.
• SwiftX software development system for the ARM familyworks with the ARM-JTAG for live interactive debugging of the Atmel AT91ARM core family (using Atmel's EB40, EB40A, etc. development boards). Port for the ST ARM partscoming soon.