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CCS/TMS320F28031: After Custom Bootload Jump, ADC stops to work !!

Part Number: TMS320F28031

Tool/software: Code Composer Studio

Hi,

I am implementing a custom bootloader to flash firmware into my F28031 over SCI, i am listing the procedure and issue am facing. Any clue or help will be great... thanks,

  • I have the complete code written to read SRECs from Motorola-2 Hex file (in Flash A)
  • Am checking line CRCs and the Flash checksum.
  • All the checks are good, and am jumping to the code start address in S8 record of the Hex file.
  • The code seems to have jumped correctly and am getting the Application code to run.
  • But for some reason, the ADC in the Application code, dosent seem to work. ADCs SOC is from EPWM1, I read ADC Result in ADCINT
  • There are other ISRs in the code and they seem to work (tried gpio toggles)
  • If i flash the same code in Flash B-H, the code is working fine.

Let me know where i could be going wrong..

Thanks and Regards

Santhosh Nandakumar