實驗現象：

核心代碼：

int main(void) {/* USER CODE BEGIN 1 */int i,j;int res;float time[2];static int error_flag = 0;/* 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_USART6_UART_Init();MX_TIM3_Init();/* USER CODE BEGIN 2 */usart6.initialize(115200);usart6.printf("\x0c"); //???áusart6.printf("\033[1;32;40m"); //éè??????×?ì??a?ìé? usart6.printf("Hello, I am iCore4!\r\n\r\n");usart6.printf("DSP BasicMath TEST......\r\n"); /* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while (1){/* USER CODE END WHILE *//* USER CODE BEGIN 3 */timeout = 0;__HAL_TIM_SET_COUNTER(&htim3,0);for(j = 0;j < 10000;j++){for(i = 0;i < MAX_BLOCKSIZE;i ++){res = SinCos_Test(testInput_f32[i],0);if(res != 0)error_flag ++;}}time[0] = __HAL_TIM_GET_COUNTER(&htim3)+ timeout*5000;timeout = 0;__HAL_TIM_SET_COUNTER(&htim3,0);for(j = 0;j < 10000;j++){for(i = 0;i < MAX_BLOCKSIZE;i ++){res = SinCos_Test(testInput_f32[i],1);if(res != 0)error_flag ++;}}time[1] = __HAL_TIM_GET_COUNTER(&htim3)+ timeout*5000;if(error_flag == 0){usart6.printf("*NO DSP MATHLIB runtime:%0.1fms *USE DSP MATHLIB runtime:%0.1fms\r",time[0] / 10, time[1] / 10);LED_GREEN_ON;LED_RED_OFF;LED_BLUE_OFF;}else{usart6.printf("Error\r"); LED_GREEN_OFF;LED_RED_ON;LED_BLUE_OFF;}}/* USER CODE END 3 */}

源代碼下載鏈接：

鏈接：http://pan.baidu.com/s/1cq9WSI 密碼：hyc2

iCore4鏈接：

轉載于:https://www.cnblogs.com/xiaomagee/p/7614126.html

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