What do the flags show? Do they go high on bootup?
And is the FPGA sending out data?
Thank you for responding,
In 32-bit mode, flags A & B are low at boot, and stay low.
When I run it in 16-bit mode, flags A & B are low at boot, and then as I transmit data they go high, and for every chunk of data or so they go low then high again. When I quit transmitting data (ie quit transitioning PCLK), they stay high.
When I jump to 32-bit mode (change the 16/32 bit flag value), I'm doing the same thing as with 16-bit, ie putting data on the data pins and clocking PCLK, exact same way, but nothing happens. The flags stay low permanently.