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TMS320F280039C: F280039 doesn't load after loading code

Diana Ferreira
Prodigy 40 points

Part Number: TMS320F280039C
Other Parts Discussed in Thread: CCSTUDIO

Hello, 

I have a PCB with the f280039c IC. It has an external reset button connected with the XRSn pin. I realized that everytime, immediatly after I loaded a program to the microcontroller the external reset button stopped working. It stopped the program but never turned it on again. After this if I disconnected the power and connected again everything worked fine. I am using ccstudio and xds110 debug probe. I am loading program to the flash. Is there a way to not have to turn off the power and on everytime in order to have hardware reset. The software reset works fine.

Thanks in advance.

  • 0
    TI__Mastermind 19010 points

    Hello,

    Diana Ferreira said:
    After this if I disconnected the power and connected again everything worked fine.

    Is the debugger still connected when XRSn is asserted? If so, this means that the emulation boot configurations are being used. If the EMU_BOOTPIN_CONFIG_KEY is not set, then the device will be looping in wait boot. You can try emulating boot to flash to confirm.

    Best,
    Matt