forked from mirrors/qmk_firmware
update ws2812 driver/config
This commit is contained in:
Jack Humbert
parent
1c0d85c143
commit
3e282ab203
6 changed files with 30 additions and 21 deletions
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@ -40,16 +40,17 @@
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#if !defined(WS2812_TIM_N)
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#error WS2812 timer not specified
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#elif WS2812_TIM_N == 1
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#define WS2812_DMA_STREAM STM32_DMA1_STREAM5
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#elif WS2812_TIM_N == 2
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#define WS2812_DMA_STREAM STM32_DMA1_STREAM2
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#elif WS2812_TIM_N == 3
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#define WS2812_DMA_STREAM STM32_DMA1_STREAM3
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#elif WS2812_TIM_N == 4
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#define WS2812_DMA_STREAM STM32_DMA1_STREAM7
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#else
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#error WS2812 timer set to invalid value
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#endif
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#if defined(STM32F2XX) || defined(STM32F3XX) || defined(STM32F4XX) || defined(STM32F7XX)
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#if WS2812_TIM_N <= 2
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#define WS2812_AF 1
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#elif WS2812_TIM_N <= 5
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#define WS2812_AF 2
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#elif WS2812_TIM_N <= 11
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#define WS2812_AF 3
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#endif
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#elif !defined(WS2812_AF)
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#error WS2812_AF timer alternate function not specified
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#endif
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#if !defined(WS2812_TIM_CH)
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@ -60,8 +61,8 @@
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/* --- PRIVATE CONSTANTS ---------------------------------------------------- */
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#define WS2812_PWM_FREQUENCY (72000000) /**< Clock frequency of PWM */
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#define WS2812_PWM_PERIOD (90) /**< Clock period in ticks. 90/(72 MHz) = 1.25 uS (as per datasheet) */
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#define WS2812_PWM_FREQUENCY (STM32_SYSCLK/2) /**< Clock frequency of PWM */
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#define WS2812_PWM_PERIOD (WS2812_PWM_FREQUENCY/800000) /**< Clock period in ticks. 90/(72 MHz) = 1.25 uS (as per datasheet) */
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/**
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* @brief Number of bit-periods to hold the data line low at the end of a frame
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@ -85,7 +86,7 @@
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* a low period of (90 - 22)/(72 MHz) = 9.44 uS. These values are within the allowable
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* bounds, and intentionally skewed as far to the low duty-cycle side as possible
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*/
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#define WS2812_DUTYCYCLE_0 (22)
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#define WS2812_DUTYCYCLE_0 (WS2812_PWM_FREQUENCY/(1000000000/350))
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/**
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* @brief High period for a one, in ticks
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@ -98,7 +99,7 @@
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* a low period of (90 - 56)/(72 MHz) = 4.72 uS. These values are within the allowable
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* bounds, and intentionally skewed as far to the high duty-cycle side as possible
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*/
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#define WS2812_DUTYCYCLE_1 (56)
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#define WS2812_DUTYCYCLE_1 (WS2812_PWM_FREQUENCY/(1000000000/800))
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/* --- PRIVATE MACROS ------------------------------------------------------- */
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@ -173,8 +174,12 @@ void ws2812_init(void)
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for (i = 0; i < WS2812_COLOR_BIT_N; i++) ws2812_frame_buffer[i] = WS2812_DUTYCYCLE_0; // All color bits are zero duty cycle
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for (i = 0; i < WS2812_RESET_BIT_N; i++) ws2812_frame_buffer[i + WS2812_COLOR_BIT_N] = 0; // All reset bits are zero
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// Configure PA0 as AF output
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palSetPadMode(GPIOA, 1, PAL_MODE_ALTERNATE(1));
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// Configure PA1 as AF output
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#ifdef WS2812_EXTERNAL_PULLUP
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palSetPadMode(PORT_WS2812, PIN_WS2812, PAL_MODE_ALTERNATE(WS2812_AF) | PAL_STM32_OTYPE_OPENDRAIN);
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#else
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palSetPadMode(PORT_WS2812, PIN_WS2812, PAL_MODE_ALTERNATE(WS2812_AF));
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#endif
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// PWM Configuration
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#pragma GCC diagnostic ignored "-Woverride-init" // Turn off override-init warning for this struct. We use the overriding ability to set a "default" channel config
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@ -199,6 +204,8 @@ void ws2812_init(void)
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dmaStreamSetMode(WS2812_DMA_STREAM,
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STM32_DMA_CR_DIR_M2P | STM32_DMA_CR_PSIZE_WORD | STM32_DMA_CR_MSIZE_BYTE |
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STM32_DMA_CR_MINC | STM32_DMA_CR_CIRC | STM32_DMA_CR_PL(3));
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//STM32_DMA_CR_CHSEL(WS2812_DMA_CHANNEL) | STM32_DMA_CR_DIR_M2P | STM32_DMA_CR_PSIZE_WORD | STM32_DMA_CR_MSIZE_WORD |
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//STM32_DMA_CR_MINC | STM32_DMA_CR_CIRC | STM32_DMA_CR_PL(3));
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// Start DMA
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dmaStreamEnable(WS2812_DMA_STREAM);
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@ -231,7 +238,6 @@ ws2812_err_t ws2812_write_led(uint32_t led_number, uint8_t r, uint8_t g, uint8_t
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/** @} addtogroup WS2812 */
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void ws2812_setleds(LED_TYPE *ledarray, uint16_t number_of_leds) {
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ws2812_init();
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uint8_t i = 0;
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while (i < number_of_leds) {
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ws2812_write_led(i, ledarray[i].r, ledarray[i].g, ledarray[i].b);
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@ -18,9 +18,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef CONFIG_H
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#define CONFIG_H
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#ifdef __AVR__
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#include "config_common.h"
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#endif
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/* USB Device descriptor parameter */
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#define VENDOR_ID 0xFEED
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@ -25,7 +25,7 @@
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* Board identifier.
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*/
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#define BOARD_GENERIC_STM32_F303XC
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#define BOARD_NAME "Clueboard 60 PCB"
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#define BOARD_NAME "Planck PCB"
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/*
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* Board oscillators-related settings.
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@ -129,5 +129,10 @@
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#define RGBLED_NUM WS2812_LED_N
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#define WS2812_TIM_N 1
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#define WS2812_TIM_CH 1
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#define PORT_WS2812 GPIOA
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#define PIN_WS2812 1
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#define WS2812_DMA_STREAM STM32_DMA1_STREAM2 // DMA stream for TIMx_UP (look up in reference manual under DMA Channel selection)
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//#define WS2812_DMA_CHANNEL 7 // DMA channel for TIMx_UP
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//#define WS2812_EXTERNAL_PULLUP
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#endif
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@ -184,7 +184,6 @@
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#define STM32_PWM_USE_ADVANCED FALSE
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#define STM32_PWM_USE_TIM1 TRUE
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#define STM32_PWM_USE_TIM2 FALSE
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#define STM32_PWM_USE_TIM3 FALSE
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#define STM32_PWM_USE_TIM4 FALSE
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#define STM32_PWM_USE_TIM8 FALSE
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#define STM32_PWM_TIM1_IRQ_PRIORITY 7
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@ -17,6 +17,7 @@
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#include "rgblight.h"
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void matrix_init_kb(void) {
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ws2812_init();
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rgblight_enable();
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rgblight_mode(1);
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rgblight_setrgb(0xFF, 0xFF, 0xFF);
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