TMS320F28069M: Daisy Chaining Multiple C2000s

Tim Simerly

Dear Support:

I am working on a schematic where we are using (3) F28069M devices and need to daisy chain them such that will allow me to download and debug each of them using CCS using one debugger (i.e. XDS100v2). I am using the standard 14-pin JTAG debugger header and was looking for an example that showed how to do this? Is there a reference schematic you can provide from previous EVMs/projects y'all have done with multiple C2000's on-board that I could use so that I wire this up correctly on my schematic? If not, is there a document you can reference that addresses how to do this using C2000 devices? Please advise.

Thanks,
Tim

over 7 years ago

0 MatthewPate over 7 years ago

TI__Guru* 84680 points

Tim,

I would start with the guide here http://dev.ti.com/tirex/#/?link=Development%20Tools%2FDebug%20Probes%2FXDS%2FDocuments%2FXDS%20Target%20Connection%20Guide

There is a link to multi-devices on the right hand side or just scroll down in the section(I can't figure out how to give a direct URL to the section unfortunately).

These devices don't have a EMU0/1 so they can be pulled high at the to keep them in a known state.

I don't have a ready made example we have done locally, but will dig a bit more to make sure we haven't seen something inconsistent with the diagram from above.

Best,

Matthew

0 Tim Simerly over 7 years ago in reply to MatthewPate

TI__Genius 10025 points

Hey Matthew:

Ok, thanks. Was mainly looking for an example schematic of an existing board if you have one. Will follow the reference as indicated.

Thanks,
Tim

0 MatthewPate over 7 years ago in reply to Tim Simerly

TI__Guru* 84680 points

Tim,
Wanted to check back post the winter holiday to see if you had any further questions/concerns related to the above daisy chain JTAG question.

Best,
Matthew

0 Tim Simerly over 7 years ago in reply to MatthewPate

TI__Genius 10025 points

Hey Matthew:

Thanks for getting back with me - no issues. I just followed the documentation in the Users Guide - hopefully it will work. :-)

Thanks,
Tim

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TMS320F28069M: Daisy Chaining Multiple C2000s