20 lines
963 B
C
20 lines
963 B
C
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#define WS2812_LED_N 22 // Number of LEDs
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#define WS2812_PORT GPIOE
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#define WS2812_PIN 9
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#define WS2812_TIM_N 1 // timer, 1-11
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#define WS2812_TIM_CH 0 // timer channel, 0-3
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#define WS2812_DMA_STREAM STM32_DMA_STREAM_ID(2, 5) //DMA2 Stream 5 // DMA stream for TIMx_UP (look up in reference manual under DMA Channel selection)
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#define WS2812_DMA_CHANNEL 6 // DMA channel for TIMx_UP
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#define WS2812_PWM_FREQUENCY (STM32_SYSCLK / 2) /**< Clock frequency of PWM, must be valid with respect to system clock! */
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#define WS2812_PWM_PERIOD (WS2812_PWM_FREQUENCY / 800000)
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#define WS2812_DUTYCYCLE_0 (WS2812_PWM_FREQUENCY / (1000000000 / 220))
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#define WS2812_DUTYCYCLE_1 (WS2812_PWM_FREQUENCY / (1000000000 / 580))
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#define CONCAT_SYMBOLS(s1, s2) s1##s2
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#define CONCAT_EXPANDED_SYMBOLS(s1, s2) CONCAT_SYMBOLS(s1, s2)
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#define WS2812_PWM_DRIVER CONCAT_EXPANDED_SYMBOLS(PWMD, WS2812_TIM_N)
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#define WS2812_BUFLEN ((WS2812_LED_N + 4) * 24)
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