some adjustments that didn't work
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					 3 changed files with 16 additions and 16 deletions
				
			
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			@ -8,20 +8,20 @@
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#include "ws2812.h"
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#include "stdlib.h"
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static uint8_t *fb;
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static uint32_t *fb;
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static int sLeds;
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static stm32_gpio_t *sPort;
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static uint32_t sMask;
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uint8_t* dma_source;
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uint32_t * dma_source;
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void setColor(uint8_t color, uint8_t *buf,uint32_t mask){
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void setColor(uint8_t color, uint32_t *buf,uint32_t mask){
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  int i;
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  for (i=0;i<8;i++){
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    buf[i]=((color<<i)&0b10000000?0x0:mask);
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  }
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}
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void setColorRGB(Color c, uint8_t *buf, uint32_t mask){
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void setColorRGB(Color c, uint32_t *buf, uint32_t mask){
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  setColor(c.G,buf, mask);
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  setColor(c.R,buf+8, mask);
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  setColor(c.B,buf+16, mask);
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			@ -43,7 +43,7 @@ void setColorRGB(Color c, uint8_t *buf, uint32_t mask){
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 * @param[out] o_fb     initialized frame buffer
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 *
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 */
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void ledDriverInit(int leds, stm32_gpio_t *port, uint32_t mask, uint8_t **o_fb) {
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void ledDriverInit(int leds, stm32_gpio_t *port, uint32_t mask, uint32_t **o_fb) {
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  sLeds=leds;
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  sPort=port;
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  sMask=mask;
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			@ -72,7 +72,7 @@ void ledDriverInit(int leds, stm32_gpio_t *port, uint32_t mask, uint8_t **o_fb)
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                              0,
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                              0,
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  };
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  dma_source = chHeapAlloc(NULL, 1);
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  dma_source = chHeapAlloc(NULL,  4);
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  fb = chHeapAlloc(NULL, ((sLeds) * 24)+10);
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  *o_fb=fb;
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  int j;
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			@ -85,8 +85,8 @@ void ledDriverInit(int leds, stm32_gpio_t *port, uint32_t mask, uint8_t **o_fb)
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  dmaStreamSetTransactionSize(STM32_DMA1_STREAM2, (sLeds) * 24);
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  dmaStreamSetMode(
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      STM32_DMA1_STREAM2,
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      STM32_DMA_CR_DIR_M2P | STM32_DMA_CR_MINC | STM32_DMA_CR_PSIZE_BYTE
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      | STM32_DMA_CR_MSIZE_BYTE | STM32_DMA_CR_CIRC | STM32_DMA_CR_PL(2));
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      STM32_DMA_CR_DIR_M2P | STM32_DMA_CR_MINC | STM32_DMA_CR_PSIZE_WORD
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      | STM32_DMA_CR_MSIZE_WORD | STM32_DMA_CR_CIRC | STM32_DMA_CR_PL(2));
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  // DMA stream 3, triggered by pwm update event. output high at beginning of signal
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  dmaStreamAllocate(STM32_DMA1_STREAM3, 10, NULL, NULL);
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  dmaStreamSetPeripheral(STM32_DMA1_STREAM3, &(sPort->BSRR.H.set));
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			@ -94,7 +94,7 @@ void ledDriverInit(int leds, stm32_gpio_t *port, uint32_t mask, uint8_t **o_fb)
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  dmaStreamSetTransactionSize(STM32_DMA1_STREAM3, 1);
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  dmaStreamSetMode(
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      STM32_DMA1_STREAM3, STM32_DMA_CR_TEIE |
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      STM32_DMA_CR_DIR_M2P | STM32_DMA_CR_PSIZE_BYTE | STM32_DMA_CR_MSIZE_BYTE
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      STM32_DMA_CR_DIR_M2P | STM32_DMA_CR_PSIZE_WORD | STM32_DMA_CR_MSIZE_WORD
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      | STM32_DMA_CR_CIRC | STM32_DMA_CR_PL(3));
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  // DMA stream 6, triggered by channel1 update event. reset output value late to indicate "1" bit to ws2812.
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  // always triggers but no affect if dma stream 2 already change output value to 0
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			@ -104,7 +104,7 @@ void ledDriverInit(int leds, stm32_gpio_t *port, uint32_t mask, uint8_t **o_fb)
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  dmaStreamSetTransactionSize(STM32_DMA1_STREAM6, 1);
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  dmaStreamSetMode(
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      STM32_DMA1_STREAM6,
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      STM32_DMA_CR_DIR_M2P | STM32_DMA_CR_PSIZE_BYTE | STM32_DMA_CR_MSIZE_BYTE
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      STM32_DMA_CR_DIR_M2P | STM32_DMA_CR_PSIZE_WORD | STM32_DMA_CR_MSIZE_WORD
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      | STM32_DMA_CR_CIRC | STM32_DMA_CR_PL(3));
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  pwmStart(&PWMD2, &pwmc2);
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  pwmStart(&PWMD3, &pwmc3);
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			@ -137,7 +137,7 @@ void ledDriverWaitCycle(void){
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  while (PWMD2.tim->CNT < 90 * sLeds * 24 / 90){chThdSleepMicroseconds(1);};
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}
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void testPatternFB(uint8_t *fb){
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void testPatternFB(uint32_t *fb){
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  int i;
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  Color tmpC = {rand()%256, rand()%256, rand()%256};
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  for (i=0;i<sLeds;i++){
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			@ -20,9 +20,9 @@ struct Color {
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  uint8_t B;
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};
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void ledDriverInit(int leds, stm32_gpio_t *port, uint32_t mask, uint8_t **o_fb);
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void setColorRGB(Color c, uint8_t *buf, uint32_t mask);
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void testPatternFB(uint8_t *fb);
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void ledDriverInit(int leds, stm32_gpio_t *port, uint32_t mask, uint32_t **o_fb);
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void setColorRGB(Color c, uint32_t *buf, uint32_t mask);
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void testPatternFB(uint32_t *fb);
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void ledDriverWaitCycle(void);
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void ws2812_setleds(LED_TYPE *ledarray, uint16_t number_of_leds);
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