In SX Microcontrollers, SX/B Compiler and SX-Key Tool, aemileski wrote:

[quote]Is step 12 the refresh???[/quote]Well 1 to 11 is the refresh, 12 repeats it with the same data.  I don't understand why you would have that, except for maybe the second red pixel in RRGB.  In that case 1-12 is the refresh.

I'd recommend storing pixel data differently if possible.  I'm betting that you are currently using pixel packing with 8 pixels per byte, which makes sense with 1 bit of luminance but is awkward with more.

Byte offset 0:  pixel 0, red
Byte offset 1:  pixel 0, green
Byte offset 2:  pixel 0, blue
Byte offset 3:  pixel 1, red
Byte offset 4:  pixel 1, green
Byte offset 5:  pixel 1, blue
...

This makes it so that you can use:

Next pixel offset = current pixel offset + 3
Red = current pixel offset + 0
Green = current pixel offset + 1
Blue = current pixel offset + 2

Then all you need to do is to keep track which field you are on, convert the the 3 byte RGB value to a 3 bit PWM bit for that field, shift the bits out.

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