Hi everyone i'm new here with STM32 , I'm not really a programmer so I need some help.
my objective is generate sine wave with DMA DAC , I did that and I got my sine wave using FCLK with tim2 ( Iam using STM32F303K8 ) and now I want just to apply a delay for that sine wave for example 1ms on and 1ms off which mean 50% duty cycle , I read that I can apply another timer to create a delay with it , or directly call function HAL_Delay , thank you for your help
this is my code
#include "main.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#define NS 40
uint32_t Wave_LUT[NS] = {
1024,1184,1340,1489,1626,1748,1852,1936,1998,2035,2048,2035,1998,1936,1852,1748,
1626,1489,1340,1184,1024,864,708,559,422,300,196,112,50,13,0,13,
50,112,196,300,422,559,708,864,1024
};
DAC_HandleTypeDef hdac1;
DMA_HandleTypeDef hdma_dac_ch1;
TIM_HandleTypeDef htim2;
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
DAC_HandleTypeDef hdac1;
DMA_HandleTypeDef hdma_dac1_ch1;
TIM_HandleTypeDef htim1;
TIM_HandleTypeDef htim2;
DMA_HandleTypeDef hdma_tim1_ch4_trig_com;
DMA_HandleTypeDef hdma_tim2_up;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_DMA_Init(void);
static void MX_DAC1_Init(void);
static void MX_TIM2_Init(void);
static void MX_TIM1_Init(void);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
HAL_Init();
SystemClock_Config();
MX_GPIO_Init();
MX_DMA_Init();
MX_DAC1_Init();
MX_TIM2_Init();
HAL_DAC_Start_DMA(&hdac1, DAC_CHANNEL_1, (uint32_t*)Wave_LUT, NS, DAC_ALIGN_12B_R);
HAL_TIM_Base_Start(&htim2);
while (1)
{
}
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_DMA_Init();
MX_DAC1_Init();
MX_TIM2_Init();
MX_TIM1_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
