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TMS320F28035: Application issues of chips

Part Number: TMS320F28035


At the beginning, it can still be DEBUG, but after flashing a few times, it cannot be flashed and locks up



I have already replaced three chips, and the situation is the same


The board I am currently using is powered by a power supply simulator and burned


NXRS has interference here, I don't know where it came from



Confirming that the flash has been constantly resetting, I feel like the RAM has not been tested yet, and the peripheral hardware has been reset normally. I also replaced the capacitor in the circuit with 100NF, but it still cannot be reset. Let's see how this problem occurred and what is the solution?

  • Hi, 

    The board I am currently using is powered by a power supply simulator and burned

    What do you mean by power supply simulator? Please elaborate on the above details.

    At the beginning, it can still be DEBUG, but after flashing a few times, it cannot be flashed and locks up

    If you put the device in Wait boot mode can you connect over JTAG?

    NXRS has interference here, I don't know where it came from

    What kind of noise do you see? Can you capture and show waveforms of the signal and issue you see.

    Best,

    Kevin