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Original question:

TMS320F28377D: Bootloader: Our board uses this chip and it can load over JTAG, but I can't get other methods to load

TMS320F28377D: How to determine if the chip is in sci bootloading mode

Philip Manning
Prodigy 60 points

Part Number: TMS320F28377D

On this chip, how can I determine if the chip is in sci bootloading mode.  I have TRST = 0, GPIO72 = 0, GPIO84 = 1.  Is there any feedback over GPIOs or LEDs?  Or do I need to program F2837xD_sci_flash_kernels_cpu01 to set a GPIO high to determine the bootloading software is running?

  • 0
    TI__Expert 5630 points

    Philip, 

    After a device reset, there is a boot sequence followed in which the boot mode select pins are read in order to set the boot mode. Table 4.8 in the F2837xD TRM shows this sequence. I will check on whether there is any GPIO feedback to confirm if a boot mode has been set, but for the purpose of loading the flash kernel example you should be able to use the serial_flash_programmer utility to download the flash kernel given that the boot mode select pins are in the positions you mentioned. 

    Thanks,

    Anu