【iCore4 雙核心板_ARM】例程三十八：DSP MATH庫測試

實驗現象：

核心程式碼：

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");                                                                                              //ÇåÆÁ
    usart6.printf("\033[1;32;40m");                                       //ÉèÖÃÖÕ¶Ë×ÖÌåΪÂÌÉ«    
    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 */

}

原始碼下載連結：

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

iCore4連結：