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So I've been working on getting the de0-nano fpga to control an 32x32 LED matrix display and struggled to get any expected output, so I switched to using a beaglebone black to try controlling in a way that I'd done with a previous display only to get the same results. See the picture below. I can light up different rows but only the first 16 LED's seem to light up reliably and only in green, sometimes the red ones blink on for a few seconds but thats all I can get.     Knowing that ...