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marfis

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  1. Like
    marfis got a reaction from dubnet in WS2812 demo with MSP430 5529 launchpad   
    Hi,
     
    here is a small project that runs on the MSP4305529 launchpad:
    https://github.com/hoihu/WS2812
     
    that supports the 800kHz WS2812 LED strips (e.g. http://www.adafruit.com/products/1138 and others) by using the DMA controller rather than a while loop.
     
    The idea is based on the SPI approach by RobG:
    http://forum.43oh.com/topic/3971-wearable-ws2812-strip-controllers/
     
    + work is delegated to DMA, frees foreground application (easier to code color changes etc) - needs app. 8x more RAM, as the LED bits must be deflated in advance in memory   The main loop shows a nice looking color fading effect: IMG_1090.MOV   any comments/extensions are appreciated.
  2. Like
    marfis got a reaction from GeekDoc in WS2812 demo with MSP430 5529 launchpad   
    Hi,
     
    here is a small project that runs on the MSP4305529 launchpad:
    https://github.com/hoihu/WS2812
     
    that supports the 800kHz WS2812 LED strips (e.g. http://www.adafruit.com/products/1138 and others) by using the DMA controller rather than a while loop.
     
    The idea is based on the SPI approach by RobG:
    http://forum.43oh.com/topic/3971-wearable-ws2812-strip-controllers/
     
    + work is delegated to DMA, frees foreground application (easier to code color changes etc) - needs app. 8x more RAM, as the LED bits must be deflated in advance in memory   The main loop shows a nice looking color fading effect: IMG_1090.MOV   any comments/extensions are appreciated.
  3. Like
    marfis got a reaction from RobG in WS2812 demo with MSP430 5529 launchpad   
    Hi,
     
    here is a small project that runs on the MSP4305529 launchpad:
    https://github.com/hoihu/WS2812
     
    that supports the 800kHz WS2812 LED strips (e.g. http://www.adafruit.com/products/1138 and others) by using the DMA controller rather than a while loop.
     
    The idea is based on the SPI approach by RobG:
    http://forum.43oh.com/topic/3971-wearable-ws2812-strip-controllers/
     
    + work is delegated to DMA, frees foreground application (easier to code color changes etc) - needs app. 8x more RAM, as the LED bits must be deflated in advance in memory   The main loop shows a nice looking color fading effect: IMG_1090.MOV   any comments/extensions are appreciated.
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