TMS320F28069: Blackhawk C2000 vs XDS110 : some differnces on my HW

Hello,

Concerned experts have been notified of this query.

Note that it is Thanksgiving week in US and most of the TI engineers are away.

Please expect a delayed response, surely by early next week.

 

Regards,

Sudhakar

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C2000 Getting Started      C2000 Flash Common Issues/FAQs      Emulation FAQ

Carlo,
You could check the default emulator clock for both emulators to see if the BH is naturally set slower, which may give a more robust connection if there are some path delays. PU/PD strength, as you mention is a possibility but if the board is using the F280069 control card as a reference(i.e. those value match) I would doubt that is the issue.

I would make sure that CCS is updated to latest revision; once connected to an XDS110 it will update the emulator FW as necessary automatically.

Best,
Matthew

Carlo,
Wanted to check in to see if there was any feedback.

Best,
Matthew

Hi Matthew ,
I double checked , they are usinng latest CCS .
issue is appering as a differnce on same hw between the two emulators .
any suggestion form your experience on which hw signal could be more relevant to check ?
thank you
regards
Carlo

Carlo,
After looking at some other posts, I would suggest looking at the TRSTn signal when the emulator begins the connection we should see it go high(3.3V), if customer sees a difference in the high level between emulators that may be the issue.

We may want to find out what the value of the PD resistor is on this pin as well. I know the DS recommends 2.2kOhm; but depending on the above we may need to increase the PD resistor value(decreasing the drive).

Relevant thread: https://e2e.ti.com/support/tools/ccs/f/81/t/628509?CCS-TMDSEMU110-U-XDS110-not-working-but-my-XDS100v2-works-fine-

Matt

HI Matt ,
thank you
let me check and I ll be back
best regards
Carlo

Hi Matthew ,
due to time pressure investigation is stopped .
thank you fro yoru support
best regards
carlo