X-Git-Url: http://mj.ucw.cz/gitweb/?a=blobdiff_plain;f=nucleo-test%2FSrc%2Fmain.c;h=fdc17e9056d538144f80a740a36c0ed72d5d1f49;hb=228f98a7bea12a3cc18aab18f50951d3256bc5fe;hp=ec83544e774cf5d3a3ed2e335ba7cabbe66e6562;hpb=985bd34a1d699d8870cd4be9e170bcb80dadcf3a;p=home-hw.git

diff --git a/nucleo-test/Src/main.c b/nucleo-test/Src/main.c
index ec83544..fdc17e9 100644
--- a/nucleo-test/Src/main.c
+++ b/nucleo-test/Src/main.c
@@ -54,8 +54,10 @@
 static void LL_Init(void);
 void SystemClock_Config(void);
 static void MX_GPIO_Init(void);
+static void MX_DMA_Init(void);
 static void MX_USART2_UART_Init(void);
 static void MX_I2C1_Init(void);
+static void MX_TIM3_Init(void);
 
 /* USER CODE BEGIN PFP */
 /* Private function prototypes -----------------------------------------------*/
@@ -95,8 +97,10 @@ int main(void)
 
   /* Initialize all configured peripherals */
   MX_GPIO_Init();
+  MX_DMA_Init();
   MX_USART2_UART_Init();
   MX_I2C1_Init();
+  MX_TIM3_Init();
   /* USER CODE BEGIN 2 */
 
   run_test();
@@ -239,6 +243,82 @@ static void MX_I2C1_Init(void)
 
 }
 
+/* TIM3 init function */
+static void MX_TIM3_Init(void)
+{
+
+  LL_TIM_InitTypeDef TIM_InitStruct;
+  LL_TIM_OC_InitTypeDef TIM_OC_InitStruct;
+
+  LL_GPIO_InitTypeDef GPIO_InitStruct;
+
+  /* Peripheral clock enable */
+  LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_TIM3);
+
+  /* TIM3 DMA Init */
+  
+  /* TIM3_CH1_TRIG Init */
+  LL_DMA_SetDataTransferDirection(DMA1, LL_DMA_CHANNEL_4, LL_DMA_DIRECTION_PERIPH_TO_MEMORY);
+
+  LL_DMA_SetChannelPriorityLevel(DMA1, LL_DMA_CHANNEL_4, LL_DMA_PRIORITY_VERYHIGH);
+
+  LL_DMA_SetMode(DMA1, LL_DMA_CHANNEL_4, LL_DMA_MODE_NORMAL);
+
+  LL_DMA_SetPeriphIncMode(DMA1, LL_DMA_CHANNEL_4, LL_DMA_PERIPH_NOINCREMENT);
+
+  LL_DMA_SetMemoryIncMode(DMA1, LL_DMA_CHANNEL_4, LL_DMA_MEMORY_NOINCREMENT);
+
+  LL_DMA_SetPeriphSize(DMA1, LL_DMA_CHANNEL_4, LL_DMA_PDATAALIGN_WORD);
+
+  LL_DMA_SetMemorySize(DMA1, LL_DMA_CHANNEL_4, LL_DMA_MDATAALIGN_WORD);
+
+  /* TIM3 interrupt Init */
+  NVIC_SetPriority(TIM3_IRQn, 0);
+  NVIC_EnableIRQ(TIM3_IRQn);
+
+  TIM_InitStruct.Prescaler = 31;
+  TIM_InitStruct.CounterMode = LL_TIM_COUNTERMODE_UP;
+  TIM_InitStruct.Autoreload = 0;
+  TIM_InitStruct.ClockDivision = LL_TIM_CLOCKDIVISION_DIV1;
+  LL_TIM_Init(TIM3, &TIM_InitStruct);
+
+  LL_TIM_DisableARRPreload(TIM3);
+
+  LL_TIM_SetClockSource(TIM3, LL_TIM_CLOCKSOURCE_INTERNAL);
+
+  TIM_OC_InitStruct.OCMode = LL_TIM_OCMODE_FROZEN;
+  TIM_OC_InitStruct.OCState = LL_TIM_OCSTATE_DISABLE;
+  TIM_OC_InitStruct.OCNState = LL_TIM_OCSTATE_DISABLE;
+  TIM_OC_InitStruct.CompareValue = 0;
+  TIM_OC_InitStruct.OCPolarity = LL_TIM_OCPOLARITY_HIGH;
+  LL_TIM_OC_Init(TIM3, LL_TIM_CHANNEL_CH1, &TIM_OC_InitStruct);
+
+  LL_TIM_OC_DisableFast(TIM3, LL_TIM_CHANNEL_CH1);
+
+  TIM_OC_InitStruct.OCMode = LL_TIM_OCMODE_ACTIVE;
+  TIM_OC_InitStruct.OCState = LL_TIM_OCSTATE_DISABLE;
+  TIM_OC_InitStruct.OCNState = LL_TIM_OCSTATE_DISABLE;
+  LL_TIM_OC_Init(TIM3, LL_TIM_CHANNEL_CH2, &TIM_OC_InitStruct);
+
+  LL_TIM_OC_DisableFast(TIM3, LL_TIM_CHANNEL_CH2);
+
+  LL_TIM_SetTriggerOutput(TIM3, LL_TIM_TRGO_RESET);
+
+  LL_TIM_DisableMasterSlaveMode(TIM3);
+
+  /**TIM3 GPIO Configuration  
+  PA7   ------> TIM3_CH2 
+  */
+  GPIO_InitStruct.Pin = THERMO_Pin;
+  GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
+  GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
+  GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
+  GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
+  GPIO_InitStruct.Alternate = LL_GPIO_AF_1;
+  LL_GPIO_Init(THERMO_GPIO_Port, &GPIO_InitStruct);
+
+}
+
 /* USART2 init function */
 static void MX_USART2_UART_Init(void)
 {
@@ -289,6 +369,22 @@ static void MX_USART2_UART_Init(void)
 
 }
 
+/** 
+  * Enable DMA controller clock
+  */
+static void MX_DMA_Init(void) 
+{
+  /* Init with LL driver */
+  /* DMA controller clock enable */
+  LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_DMA1);
+
+  /* DMA interrupt init */
+  /* DMA1_Channel4_5_IRQn interrupt configuration */
+  NVIC_SetPriority(DMA1_Channel4_5_IRQn, 0);
+  NVIC_EnableIRQ(DMA1_Channel4_5_IRQn);
+
+}
+
 /** Configure pins as 
         * Analog 
         * Input