【超低功耗STM32U5 IoT探索套件】U5超低功耗超高性能测试GPIO点灯（之二）

mameng

【超低功耗STM32U5 IoT探索套件】U5超低功耗超高性能测试GPIO点灯（之二） [复制链接]

STM32U5亮点STM32U5相对前面传统的STM32Lx系列低功耗MCU具有很多优异之处：
其一：40nm工艺制程
以前的STM32采用90nm工艺制程，此次STM32U5采用40nm工艺。
越先进的工艺代表着功耗性能越好，这也是为什么STM32U5动态功耗可以低至 19μA/MHz 的原因。
其二：主频160MHz以前STM32Lx系列低功耗MCU主频相对较低，STM32Lx系列中STM32L4+最高主频才120MHz。STM32U5拥有240个DMIPS和651个CoreMark得分的高性能。
在产品功能越来越多、越来越丰富的今天，需要处理更多的事件，因此主频越高，代表其性能越高。
其三：更强的FlashSTM32U5采用更高密度的晶体管，同时，采用更先进技术，使Flash寿命更长。STM32U5将支持高达4M Flash容量。

 

由于是最新处理器，所以有必要把ST生态工具全部升级最新版：STM32CubeProgrammer  2.8  ， STM32CubeMX-6.3.0-Win 6.3版本

STM32CubeMX生成的，使用STM32U5xx HAL API库. GPIO点灯的程序，程序相对于STM32F1系列几乎一样，不用太考虑寄存器差异，程序兼容性高

 

 

#include "main.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */

/* 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 ---------------------------------------------------------*/

/* USER CODE BEGIN PV */
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_ICACHE_Init(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
static void EXTI13_IRQHandler_Config(void);
/* 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 */
  /* STM32U5xx HAL library initialization:
       - Configure the Flash prefetch
       - Configure the Systick to generate an interrupt each 1 msec
       - Set NVIC Group Priority to 3
       - Low Level Initialization
     */
  /* 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_ICACHE_Init();
  /* USER CODE BEGIN 2 */
  /* -1- Initialize LEDs mounted on B-U585I-IOT02A board */
  BSP_LED_Init(LED7);

  /* -2- Configure External line 13 (connected to PC.13 pin) in interrupt mode */
  EXTI13_IRQHandler_Config();

  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */

  }
  /* USER CODE END 3 */
}

/**
  * [url=home.php?mod=space&uid=159083]@brief[/url] System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /** Configure the main internal regulator output voltage
  */
  if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1) != HAL_OK)
  {
    Error_Handler();
  }
  /** Initializes the CPU, AHB and APB busses clocks
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;
  RCC_OscInitStruct.MSIState = RCC_MSI_ON;
  RCC_OscInitStruct.MSICalibrationValue = RCC_MSICALIBRATION_DEFAULT;
  RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_4;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI;
  RCC_OscInitStruct.PLL.PLLMBOOST = RCC_PLLMBOOST_DIV1;
  RCC_OscInitStruct.PLL.PLLM = 1;
  RCC_OscInitStruct.PLL.PLLN = 80;
  RCC_OscInitStruct.PLL.PLLP = 2;
  RCC_OscInitStruct.PLL.PLLQ = 2;
  RCC_OscInitStruct.PLL.PLLR = 2;
  RCC_OscInitStruct.PLL.PLLRGE = RCC_PLLVCIRANGE_0;
  RCC_OscInitStruct.PLL.PLLFRACN = 0;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  /** Initializes the CPU, AHB and APB busses clocks
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2
                              |RCC_CLOCKTYPE_PCLK3;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB3CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
  {
    Error_Handler();
  }
  __HAL_RCC_PWR_CLK_DISABLE();
}

/**
  * @brief ICACHE Initialization Function
  * @param None
  * @retval None
  */
static void MX_ICACHE_Init(void)
{

  /* USER CODE BEGIN ICACHE_Init 0 */

  /* USER CODE END ICACHE_Init 0 */

  /* USER CODE BEGIN ICACHE_Init 1 */

  /* USER CODE END ICACHE_Init 1 */
  /** Enable instruction cache in 1-way (direct mapped cache)
  */
  if (HAL_ICACHE_ConfigAssociativityMode(ICACHE_1WAY) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_ICACHE_Enable() != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN ICACHE_Init 2 */

  /* USER CODE END ICACHE_Init 2 */

}

/* USER CODE BEGIN 4 */
/**
  * @brief  Configures EXTI line 13 (connected to PC.13 pin) in interrupt mode
  * @param  None
  * @retval None
  */
static void EXTI13_IRQHandler_Config(void)
{
  GPIO_InitTypeDef   GPIO_InitStructure;


  /* Enable GPIOC clock */
  __HAL_RCC_GPIOC_CLK_ENABLE();

  /* Configure PC.13 pin as input floating */
  GPIO_InitStructure.Mode = GPIO_MODE_IT_FALLING;


  GPIO_InitStructure.Pull = GPIO_NOPULL;
  GPIO_InitStructure.Pin = BUTTON_USER_PIN;
  HAL_GPIO_Init(GPIOC, &GPIO_InitStructure);


  /* Enable and set line 13 Interrupt to the lowest priority */
  HAL_NVIC_SetPriority(EXTI13_IRQn, 2, 0);
  HAL_NVIC_EnableIRQ(EXTI13_IRQn);
}


/**
  * @brief EXTI line detection callbacks
  * @param GPIO_Pin: Specifies the pins connected EXTI line
  * @retval None
  */
void HAL_GPIO_EXTI_Falling_Callback(uint16_t GPIO_Pin)
{
  if (GPIO_Pin == BUTTON_USER_PIN)
  {
    /* Toggle LED7 */
    BSP_LED_Toggle(LED7);
  }
}
/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */
  while (1)
  {
  }
  /* USER CODE END Error_Handler_Debug */
}

#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 CODE BEGIN 6 */
  /* 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)
  {
  }
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

Jacktang

低功耗是芯片发展的趋势

STM32U5动态功耗可以低至 19μA/MHz ，这在前几年的芯片还是一种理想呢