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Pixel Controller Assembly

Started by charleskerr, January 25, 2015, 08:46:25 AM

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charleskerr

I thought I would post this for anyone wanting/needing a reference to PIC assembly to build a small WS2801/WS2811/WS2812 pixel controller.  Or if they need an example of how to read/write to flash memory, use an ISR, etc. in a PIC. If anyone wanted to just take a PIC, a differential convertor and make a pixel controller, this is the assembly language to do it. This language supports a PIC16F1455 and PIC16F1825. It is setup to do WS2801, WS2811, and WS2812 (basically swaps red and green data). One must set the code to the pixel type it is supporting. It does DMX, but there is code to support a protocol that does run the same speed as Pixelnet, which is called SSD. So one could use that as an example to convert to Pixelnet (interpret the header). It supports a "programming" mode to program the starting address (which includes addresses past the 512 range to support SSD). It will turn on the lights on the string if in program mode and go to green when successfully programmed. I will have to dig around to find the pins it uses, but one can gather it from the code.

As there is a character limit I attached the code as a pdf.
One is never too old to learn

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