search

Yona-Appletree / LEDscape

Beagle Bone Black cape and firmware for driving a large number of WS281x LED strips.
126 stars 58 forks source link

Correct Way to Reduce # of Channels? #22

Open cwshep opened 9 years ago

cwshep commented 9 years ago

I would like to reduce the number of channels for two reasons:

  1. The current configuration only has enough memory to drive ~600 pixels per strip, and I would like to do more.
  2. I would like to minimize the CPU usage.

My current approach was to:

  1. Change #define LEDSCAPE_NUM_STRIPS 8 in ledscape.h
  2. Define the GPIOs in ledscape.c, eg.:

static const uint8_t gpios0[] = { 2, 3, 7, 8, 9, 10, 11, 14 }; (and no others; well actually I chose all 8 on the right side of P9, but you get the idea)

  1. Change "48" to "8" in pru/templates/ws281x.p.

Is that correct? I'm having some odd tearing/flickering issues, but I'm not sure if they are related.