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How to Use Hercules Lauchpad LAUNCHXL-RM42 as XDS100v2 Debugger??

Sudharsan K

Intellectual 385 points

Other Parts Discussed in Thread: LAUNCHXL-RM42

How to Use Hercules Lauchpad LAUNCHXL-RM42 as XDS100v2 Debugger??

over 10 years ago

0 KARTHIKEYAN RAJAMANICKAM over 10 years ago

TI__Genius 11645 points

Sudharsan,

Pls refer to section-2 of the below RM42 Quick start guide,
www.ti.com/.../spnu588.pdf

You just need to connect the USB on to your Host machine and then on it can connect to our device automatically(USB-Virtual Com Port-XDS100v2)

If you are interested for more details, here is the schematic page which will help you understand how these interfaces are connected together processors.wiki.ti.com/.../Hercules_LaunchPad_Sch.pdf

Hope this helps.

0 Sudharsan K over 10 years ago in reply to KARTHIKEYAN RAJAMANICKAM

Intellectual 385 points

I have populated the 14 Pin header JTAG [J12] in the lauchpad and want to program an external RM48x Controller using this lauchpad, is it possible?

0 KARTHIKEYAN RAJAMANICKAM over 10 years ago in reply to Sudharsan K

TI__Genius 11645 points

Could you give a small block diagram or schematics if you have already

0 Anthony F. Seely over 10 years ago in reply to KARTHIKEYAN RAJAMANICKAM

TI__Guru 68930 points

The LAUNCHXL2-RM42 board's 14 pin jtag header is designed to let you use an external debug probe with the launchpad (in case you want something faster than XDS100v2.) It's not designed to work the other way. This isn't to say you couldn't make it work but the 14 pin JTAG header isn't symmetric between the debug probe and the target -- some pins on the debug probe side 'sense' voltages and on the target side these voltages need to be applied. This is for detecting a cable-break / plug in of external emulator and for allowing the XDS100v2's CPLD to drive it's outputs based on the sensed target IO voltage.

You should really get a standalone XDS100v2. These are available through various places - I just checked a few days ago and they were selling on ebay for $40. The design is also openly available on the TI processor wiki for you to download and build your own if you like.