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TMS320F28377S: Device held in reset

Cameron Graves

Prodigy 230 points

Part Number: TMS320F28377S

Hello,

I am using the TMS320F28377S and it seems to be held in reset. I am able to connect to the device though the XDS110 debug probe and start my program, but on power cycle, the MCU does not run. It seems that the TRST overrides whatever my issue is.

The /XRS pin is at 3.3V. I have disabled my watchdog reset and the problem persists.

Any input is appreciated.

Thanks,

Cameron

over 4 years ago

0 Hareesh Janakiraman over 4 years ago

TI__Guru* 95315 points

Cameron,

Device cannot be in reset if you are able to connect to it and run your program. Besides, you say -XRS is at 3.3v. Please clarify what makes you think the device is in reset.

Is it that your code programmed in flash does not run after cycling power (with the debug probe disconnected)?

0 Cameron Graves over 4 years ago in reply to Hareesh Janakiraman

Prodigy 230 points

Yes, my assumption of reset was based on the code not running after cycling power.

0 Cameron Graves over 4 years ago in reply to Cameron Graves

Prodigy 230 points

Also, if I manually drive the /XRS pin low and then release, the program runs.

0 Hareesh Janakiraman over 4 years ago in reply to Cameron Graves

TI__Guru* 95315 points

Would you be willing to share the circuitry associated with your reset and boot-mode-select pins with me privately?

Also please take a look at the tips provided in: https://e2e.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/878674/faq-flash---how-to-modify-an-application-from-ram-configuration-to-flash-configuration

0 Cameron Graves over 4 years ago in reply to Hareesh Janakiraman

Prodigy 230 points

Hi Hareesh,

Yes, I can share that information. Please let me know where to send this.

Thanks,

Cameron

0 Hareesh Janakiraman over 4 years ago in reply to Cameron Graves

TI__Guru* 95315 points

Are you able to load your code in RAM and run it successfully?
If answer to #1 is "yes", are you able to load your code successfully into flash?