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楼主 |
发表于 2020-12-5 10:30:22
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请问是用什么方式配置的，我试了一下我正弦波还是上不去
#define tableSize 256
#define PI 3.14159
uint16_t sinTable[tableSize];
void sin_Generation(void)
{
uint16_t n;
for(n=0;n<tableSize;n++)
{
sinTable[n] = (sin(2*PI*n/tableSize)+1)*1500;
}
}
/* 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 */
/* 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_RNG_Init();
MX_DAC1_Init();
MX_TIM6_Init();
/* USER CODE BEGIN 2 */
sin_Generation();
//HAL_TIM_Base_Start_IT(&htim1);
HAL_TIM_Base_Start_IT(&htim6);
HAL_DAC_Start_DMA(&hdac1, DAC_CHANNEL_1, (uint32_t *)sinTable, tableSize, DAC_ALIGN_12B_R);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
HAL_GPIO_TogglePin(LED0_GPIO_Port,LED0_Pin);
HAL_Delay(100);
}
/* USER CODE END 3 */
} |
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发表于 2020-12-4 23:10:19
发表于 2020-12-5 10:07:53
