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Fix DMA stream ID calculation in ws2812_pwm (#10008)

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Some STM32 chips have STM32_DMA1_STREAM1 as the first DMA stream, others
(F4xx, F7xx, H7xx) have STM32_DMA1_STREAM0.  Instead of those names, use
STM32_DMA_STREAM(0), which should always give the first stm32_dma_stream_t
structure in the DMA streams array, so that the stream ID would be
calculated correctly.
This commit is contained in:
Sergey Vlasov 2020-08-25 12:02:32 +03:00 • committed by James Young
parent 1de39e5632
commit 15df82cdf3
1 changed files with 1 additions and 1 deletions
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2
drivers/chibios/ws2812_pwm.c
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@ -180,7 +180,7 @@ void ws2812_init(void) {
// Configure DMA
// dmaInit(); // Joe added this
dmaStreamAlloc(WS2812_DMA_STREAM - STM32_DMA1_STREAM1, 10, NULL, NULL);
dmaStreamAlloc(WS2812_DMA_STREAM - STM32_DMA_STREAM(0), 10, NULL, NULL);
dmaStreamSetPeripheral(WS2812_DMA_STREAM, &(WS2812_PWM_DRIVER.tim->CCR[WS2812_PWM_CHANNEL - 1])); // Ziel ist der An-Zeit im Cap-Comp-Register
dmaStreamSetMemory0(WS2812_DMA_STREAM, ws2812_frame_buffer);
dmaStreamSetTransactionSize(WS2812_DMA_STREAM, WS2812_BIT_N);