The above LEDs are set at 5/8" intervals, meaning that also the space between panels will need to be about 5/8". This spacing can give us an estimate that the cube of LEDs, not accounting for any of the controlling wires, will be about 15 inches on a side. Once concern with the smaller spacing is that the PCBs that I am trying to design need to be less than 5/8ths inch tall, or there will be some interference between layers. My biggest concern height-wise is the TIP31As, as these are through-hole transistors. Everything else should be fine at its current height.
I haven't made any more progress towards completing software. I know as of right now that I am getting some weird behavior regarding the GSCLK signal. I presently have a high frequency (much higher than I anticipated by a factor of 4-6) and I am not getting a consistent pulse going from 0V to 3.3V. That high frequency is something like 1.5V. I have 2 possible ideas for solutions:
- Implement the timers to control when the PWM toggles on and off.
- Change the writes from PORTESET to LATESET. That way I am changing the latch as opposed to the port. I am hoping that implementing this will fix the problem, but I still also do need to take care of the PWM timer as well.