• Federico Vaga's avatar
    kernel: programming the FPGA · c10ce6b6
    Federico Vaga authored
    It programs the application FPGA using a dedicated char device.
    On open() it resets the FPGA
    On write() it copies the bitstream on the FPGA
    On close() it copies the last word[1] on the bitstream and it enables
    the application FPGA
    In order to be able to program the application FPGA the user must unlock
    the flashing procedure by writing 'unlock' in the `lock` sysfs attribute
    [1] This hack is necessary does to an FPGA programmer limitation
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