TMS320F280025C: TMS320F280025C watchdog reset

Jarold Gonzalez

Part Number: TMS320F280025C

Hello,

I’m performing a reset the watchdog, the reset is performed correctly but is starting at the wrong address. I read a recommendation in this forum that I should modify the content of 0xD00 and put the 0xA500_0000 so the board starts correctly. However after performing a reset the the code gets stuck in the startup, please see screenshot below, any thoughts ?

Thanks,

over 3 years ago

0 Vivek Singh over 3 years ago

TI__Guru** 115631 points

Hi,

The PC points to RAM location so it must be your application code. You need to step through the code to see what condition is causing CPU to stuck there.

Regards,

Vivek Singh

0 Jarold Gonzalez over 3 years ago in reply to Vivek Singh

Prodigy 70 points

After the reset the breakpoints are not working properly in CCS, I have added -- ESTOP0; -- to stop the core at the beginning of my main function however the debugger does not stop there, any thoughts ?

0 Vivek Singh over 3 years ago in reply to Jarold Gonzalez

TI__Guru** 115631 points

Not sure what do you mean by "breakpoint" not working after reset. Are you running the code from RAM or Flash ? If you are loading it in RAM then it'll not work because the value you are writing at 0xD00 is for Flash boot.

Vivek Singh

0 Jarold Gonzalez over 3 years ago in reply to Vivek Singh

Prodigy 70 points

I'm running from Flash. I was trying to stop the code after the reset so I can debug it, I added an infinite loop to hold the uC at the beginning of my main but it seems that the branching to RAM happens earlier.

Do you have time for a call to discuss this issue?

0 Vivek Singh over 3 years ago in reply to Jarold Gonzalez

TI__Guru** 115631 points

We discuss it offline and will provide you update by end of the day today.

+1 Vivek Singh over 3 years ago in reply to Vivek Singh

TI__Guru** 115631 points

Hi Jarold,

I see what is wrong here. You are setting the value at 0xD00 incorrectly. 0xA5000000 is 32bit value at 0xD00 address but you are setting 16bit value hence its not working. In case of 16bit memory view , you need to write 0xA500 at address 0xD01.

Please try this and hope that fixes the issue.

Regards,

Vivek Singh

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F280025C: TMS320F280025C watchdog reset