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something wrong with TAS1020B Header Utility

Sergey Abramov
Prodigy 10 points

I'm trying to make USB audio DAC for home use. The problem is that computer can't see header. I tryed to take an image from "bin" folder of development kit - computer is seeing a USB device with VID & PID. But when I'm taking a HEX image from the same kit, using hex2bin program, and headergui program. Image I'm got doesn't working. I used header.txt from this kit. What's wrong?

  • 0
    TI__Expert 4160 points

    Sergey,

    The data flow looks something like this:

    headergui.exe: user input -> header.txt

    c51: main.c -> main.obj

    bl51: main.obj -> main.abs

    oh51: main.aps -> main.hex

    hex2bin: main.hex -> main.raw

    header.exe: header.txt + main.raw -> main.bin

    I suggest that you compare your image file to the app116.bin, especially for the first 18 bytes, using a hex dump tool.

    Also note that if you are loading an _application_, the VID and PID that it publishes is what the host sees, not necessarily the VID and PID in the header.

    Regards,

    Frank