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Setting up TIM1 for WS2812

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This commit is contained in:
Ben V. Brown
2021-05-02 17:42:41 +10:00
parent 1ad00aa8b2
commit 2e0279b36a
6 changed files with 468 additions and 458 deletions
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72
source/Core/BSP/MHP30/Setup.c
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@@ -16,6 +16,8 @@ DMA_HandleTypeDef hdma_i2c1_rx;
DMA_HandleTypeDef hdma_i2c1_tx;
IWDG_HandleTypeDef hiwdg;
TIM_HandleTypeDef htim1;
DMA_HandleTypeDef hdma_tim1_ch2;
TIM_HandleTypeDef htim2;
TIM_HandleTypeDef htim3;
#define ADC_CHANNELS 4
@@ -29,6 +31,7 @@ static void MX_I2C1_Init(void);
static void MX_IWDG_Init(void);
static void MX_TIM3_Init(void);
static void MX_TIM2_Init(void);
static void MX_TIM1_Init(void);
static void MX_DMA_Init(void);
static void MX_GPIO_Init(void);
static void MX_ADC2_Init(void);
@@ -44,12 +47,13 @@ void Setup_HAL() {
MX_ADC2_Init();
MX_TIM3_Init();
MX_TIM2_Init();
MX_TIM1_Init();
MX_IWDG_Init();
HAL_ADC_Start(&hadc2);
HAL_ADCEx_MultiModeStart_DMA(&hadc1, ADCReadings,
(ADC_SAMPLES * ADC_CHANNELS)); // start DMA of normal readings
// HAL_ADCEx_InjectedStart(&hadc1); // enable injected readings
// HAL_ADCEx_InjectedStart(&hadc2); // enable injected readings
// HAL_ADCEx_InjectedStart(&hadc1); // enable injected readings
// HAL_ADCEx_InjectedStart(&hadc2); // enable injected readings
}
// channel 0 -> temperature sensor, 1-> VIN, 2-> tip
@@ -218,6 +222,65 @@ static void MX_IWDG_Init(void) {
#endif
}
/* TIM1 init function */
void MX_TIM1_Init(void) {
/* USER CODE BEGIN TIM1_Init 0 */
/* USER CODE END TIM1_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
TIM_OC_InitTypeDef sConfigOC = {0};
TIM_BreakDeadTimeConfigTypeDef sBreakDeadTimeConfig = {0};
/* USER CODE BEGIN TIM1_Init 1 */
/* USER CODE END TIM1_Init 1 */
htim1.Instance = TIM1;
htim1.Init.Prescaler = 0;
htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
htim1.Init.Period = 104;
htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim1.Init.RepetitionCounter = 0;
htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim1) != HAL_OK) {}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK) {}
if (HAL_TIM_PWM_Init(&htim1) != HAL_OK) {}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK) {}
sConfigOC.OCMode = TIM_OCMODE_PWM1;
sConfigOC.Pulse = 0;
sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
sConfigOC.OCNPolarity = TIM_OCNPOLARITY_HIGH;
sConfigOC.OCFastMode = TIM_OCFAST_ENABLE;
sConfigOC.OCIdleState = TIM_OCIDLESTATE_RESET;
sConfigOC.OCNIdleState = TIM_OCNIDLESTATE_RESET;
if (HAL_TIM_PWM_ConfigChannel(&htim1, &sConfigOC, TIM_CHANNEL_2) != HAL_OK) {}
sBreakDeadTimeConfig.OffStateRunMode = TIM_OSSR_DISABLE;
sBreakDeadTimeConfig.OffStateIDLEMode = TIM_OSSI_DISABLE;
sBreakDeadTimeConfig.LockLevel = TIM_LOCKLEVEL_OFF;
sBreakDeadTimeConfig.DeadTime = 0;
sBreakDeadTimeConfig.BreakState = TIM_BREAK_DISABLE;
sBreakDeadTimeConfig.BreakPolarity = TIM_BREAKPOLARITY_HIGH;
sBreakDeadTimeConfig.AutomaticOutput = TIM_AUTOMATICOUTPUT_DISABLE;
if (HAL_TIMEx_ConfigBreakDeadTime(&htim1, &sBreakDeadTimeConfig) != HAL_OK) {}
/* USER CODE BEGIN TIM1_Init 2 */
/* USER CODE END TIM1_Init 2 */
__HAL_RCC_GPIOA_CLK_ENABLE();
GPIO_InitTypeDef GPIO_InitStruct;
/**TIM1 GPIO Configuration
PA9 ------> TIM1_CH2
*/
GPIO_InitStruct.Pin = WS2812_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(WS2812_GPIO_Port, &GPIO_InitStruct);
}
/* TIM3 init function */
static void MX_TIM3_Init(void) {
TIM_ClockConfigTypeDef sClockSourceConfig;
@@ -312,8 +375,11 @@ static void MX_DMA_Init(void) {
/* DMA interrupt init */
/* DMA1_Channel1_IRQn interrupt configuration */
HAL_NVIC_SetPriority(DMA1_Channel1_IRQn, 5, 0);
HAL_NVIC_SetPriority(DMA1_Channel1_IRQn, 10, 0);
HAL_NVIC_EnableIRQ(DMA1_Channel1_IRQn);
/* DMA1_Channel1_IRQn interrupt configuration */
HAL_NVIC_SetPriority(DMA1_Channel3_IRQn, 6, 0); // DMA 1 ch3 is used from TIM CH2 for WS2812
HAL_NVIC_EnableIRQ(DMA1_Channel3_IRQn);
/* DMA1_Channel6_IRQn interrupt configuration */
HAL_NVIC_SetPriority(DMA1_Channel6_IRQn, 5, 0);
HAL_NVIC_EnableIRQ(DMA1_Channel6_IRQn);