Environment Variables

Some behaviours can be controlled through environment variables.

DEBUG_FPGA

To override the configured attribute/method discovery settings and expose everything, set DEBUG_FPGA to 1, true, yes, or on (case insensitive).

FPGA_POST_FW_LOAD_DELAY

Inserts a small delay after loading firmware & creating memory buffers, before checking the “magic number” register. This is experimental, to see if it helps with occasional errors. Supply a numeric value (e.g. “0.05”), in seconds. Defaults to 0.

FPGA_XRT_TIMEOUT

Milliseconds allowed per FPGA ARGS register transaction. Supply an integer value. Defaults to 5.