Nucleo-144-stm32F413开发板测评

/* Includes ------------------------------------------------------------------*/

#include "main.h"



/** @addtogroup STM32F4xx_HAL_Examples

  * @{

  */



/** @addtogroup GPIO_IOToggle

  * @{

  */



/* Private typedef -----------------------------------------------------------*/

/* Private define ------------------------------------------------------------*/

/* Private macro -------------------------------------------------------------*/

/* Private variables ---------------------------------------------------------*/

static GPIO_InitTypeDef  GPIO_InitStruct;



/* Private function prototypes -----------------------------------------------*/

static void SystemClock_Config(void);





/* Private functions ---------------------------------------------------------*/



/**

  * [url=home.php?mod=space&uid=247401]@brief[/url]  Main program

  * @param  None

  * @retval None

  */

int main(void)

{

  /* This sample code shows how to use GPIO HAL API to toggle LED1 and LED2 IOs

    in an infinite loop. */



  /* STM32F4xx HAL library initialization:

       - Configure the Flash prefetch

       - Systick timer is configured by default as source of time base, but user 

         can eventually implement his proper time base source (a general purpose 

         timer for example or other time source), keeping in mind that Time base 

         duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and 

         handled in milliseconds basis.

       - Set NVIC Group Priority to 4

       - Low Level Initialization

     */

  HAL_Init();



  /* Configure the system clock to 100 MHz */

  SystemClock_Config();

  

  /* -1- Enable GPIO Clock (to be able to program the configuration registers) */

  LED1_GPIO_CLK_ENABLE();

  LED2_GPIO_CLK_ENABLE();



  /* -2- Configure IO in output push-pull mode to drive external LEDs */

  GPIO_InitStruct.Mode  = GPIO_MODE_OUTPUT_PP;

  GPIO_InitStruct.Pull  = GPIO_PULLUP;

  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;



  GPIO_InitStruct.Pin = LED1_PIN;

  HAL_GPIO_Init(LED1_GPIO_PORT, &GPIO_InitStruct);

  GPIO_InitStruct.Pin = LED2_PIN;

  HAL_GPIO_Init(LED2_GPIO_PORT, &GPIO_InitStruct);



  /* -3- Toggle IO in an infinite loop */

  while (1)

  {

    HAL_GPIO_TogglePin(LED1_GPIO_PORT, LED1_PIN);

    /* Insert delay 100 ms */

    HAL_Delay(100);

    HAL_GPIO_TogglePin(LED2_GPIO_PORT, LED2_PIN);

    /* Insert delay 100 ms */

    HAL_Delay(100);

  }

}



/**

  * @brief  System Clock Configuration

  *         The system Clock is configured as follow : 

  *            System Clock source            = PLL (HSE)

  *            SYSCLK(Hz)                     = 100000000

  *            HCLK(Hz)                       = 100000000

  *            AHB Prescaler                  = 1

  *            APB1 Prescaler                 = 2

  *            APB2 Prescaler                 = 1

  *            HSE Frequency(Hz)              = 8000000

  *            PLL_M                          = 8

  *            PLL_N                          = 200

  *            PLL_P                          = 2

  *            PLL_Q                          = 7

  *            PLL_R                          = 2

  *            VDD(V)                         = 3.3

  *            Main regulator output voltage  = Scale1 mode

  *            Flash Latency(WS)              = 3

  * @param  None

  * @retval None

  */

static void SystemClock_Config(void)

{

  RCC_ClkInitTypeDef RCC_ClkInitStruct;

  RCC_OscInitTypeDef RCC_OscInitStruct;

  HAL_StatusTypeDef ret = HAL_OK;



  /* Enable Power Control clock */

  __HAL_RCC_PWR_CLK_ENABLE();



  /* The voltage scaling allows optimizing the power consumption when the device is 

     clocked below the maximum system frequency, to update the voltage scaling value 

     regarding system frequency refer to product datasheet.  */

  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);



  /* Enable HSE Oscillator and activate PLL with HSE as source */

  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;

  RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;

  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;

  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;

  RCC_OscInitStruct.PLL.PLLM = 8;

  RCC_OscInitStruct.PLL.PLLN = 200;

  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;

  RCC_OscInitStruct.PLL.PLLQ = 7;

  RCC_OscInitStruct.PLL.PLLR = 2;

  ret = HAL_RCC_OscConfig(&RCC_OscInitStruct);

  

  if(ret != HAL_OK)

  {

    while(1) { ; } 

  }



  /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2 

     clocks dividers */

  RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);

  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;

  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;

  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;  

  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;  

  ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3);

  if(ret != HAL_OK)

  {

    while(1) { ; }  

  }

}





#ifdef  USE_FULL_ASSERT



/**

  * @brief  Reports the name of the source file and the source line number

  *         where the assert_param error has occurred.

  * @param  file: pointer to the source file name

  * @param  line: assert_param error line source number

  * @retval None

  */

void assert_failed(uint8_t *file, uint32_t line)

{

  /* User can add his own implementation to report the file name and line number,

     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */



  /* Infinite loop */

  while (1)

  {

  }

}

#endif



/**

  * @}

  */



/**

  * @}

  */



/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

__weak void HAL_Delay(__IO uint32_t Delay)

{

  uint32_t tickstart = 0U;

  tickstart = HAL_GetTick();

  while((HAL_GetTick() - tickstart) < Delay)

  {

  }

}