[问答]

怎样解决F0-DISCOVERY板上TX/RX灯不断闪烁的问题呢？

问答对人有帮助，内容完整，我也想知道答案 0 在试用了 F0-DISCOVERY 之后，我最近购买了 NUCLEO-F439ZI。按照传统，我想让 LED 闪烁。我失败得很惨。我开始在 CubeMX 中使用所有默认值进行初始设置。使用 ST IDE，我将以下内容放在主循环中。什么都没发生。同样的过程在我的 F0-DISCOVERY 上运行良好。 HAL_GPIO_TogglePin(GPIOB, LD1_Pin); HAL_延迟（5000）；我不知道从哪里开始解决这种疯狂问题。任何建议将不胜感激。执行时我注意到的一件事是 TX/RX 灯不断闪烁。 /* Includes ------------------------------------------------------------------/ #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 ---------------------------------------------------------/ ETH_HandleTypeDef heth; UART_HandleTypeDef huart3; PCD_HandleTypeDef hpcd_USB_OTG_FS; / USER CODE BEGIN PV / / USER CODE END PV / / Private function prototypes -----------------------------------------------/ void SystemClock_Config(void); static void MX_GPIO_Init(void); static void MX_ETH_Init(void); static void MX_USART3_UART_Init(void); static void MX_USB_OTG_FS_PCD_Init(void); / USER CODE BEGIN PFP / / 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_ETH_Init(); MX_USART3_UART_Init(); MX_USB_OTG_FS_PCD_Init(); / USER CODE BEGIN 2 / / USER CODE END 2 / / Infinite loop / / USER CODE BEGIN WHILE / while (1) { HAL_GPIO_TogglePin(GPIOB, LD1_Pin); HAL_Delay(5000); / USER CODE END WHILE / / USER CODE BEGIN 3 / } / USER CODE END 3 / } /* * @brief 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 / __HAL_RCC_PWR_CLK_ENABLE(); __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1); /* Initializes the RCC Oscillators according to the specified parameters * in the RCC_OscInitTypeDef structure. / 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 = 4; RCC_OscInitStruct.PLL.PLLN = 168; RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; RCC_OscInitStruct.PLL.PLLQ = 7; if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { Error_Handler(); } /* Initializes the CPU, AHB and APB buses clocks / RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK\|RCC_CLOCKTYPE_SYSCLK \|RCC_CLOCKTYPE_PCLK1\|RCC_CLOCKTYPE_PCLK2; RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4; RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2; if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK) { Error_Handler(); } } /* * @brief ETH Initialization Function * @param None * @retval None / static void MX_ETH_Init(void) { / USER CODE BEGIN ETH_Init 0 / / USER CODE END ETH_Init 0 / / USER CODE BEGIN ETH_Init 1 / / USER CODE END ETH_Init 1 / heth.Instance = ETH; heth.Init.AutoNegotiation = ETH_AUTONEGOTIATION_ENABLE; heth.Init.Speed = ETH_SPEED_100M; heth.Init.DuplexMode = ETH_MODE_FULLDUPLEX; heth.Init.PhyAddress = LAN8742A_PHY_ADDRESS; heth.Init.MACAddr[0] = 0x00; heth.Init.MACAddr[1] = 0x80; heth.Init.MACAddr[2] = 0xE1; heth.Init.MACAddr[3] = 0x00; heth.Init.MACAddr[4] = 0x00; heth.Init.MACAddr[5] = 0x00; heth.Init.RxMode = ETH_RXPOLLING_MODE; heth.Init.ChecksumMode = ETH_CHECKSUM_BY_HARDWARE; heth.Init.MediaInterface = ETH_MEDIA_INTERFACE_RMII; / USER CODE BEGIN MACADDRESS / / USER CODE END MACADDRESS / if (HAL_ETH_Init(&heth) != HAL_OK) { Error_Handler(); } / USER CODE BEGIN ETH_Init 2 / / USER CODE END ETH_Init 2 / } /* * @brief USART3 Initialization Function * @param None * @retval None / static void MX_USART3_UART_Init(void) { / USER CODE BEGIN USART3_Init 0 / / USER CODE END USART3_Init 0 / / USER CODE BEGIN USART3_Init 1 / / USER CODE END USART3_Init 1 / huart3.Instance = USART3; huart3.Init.BaudRate = 115200; huart3.Init.WordLength = UART_WORDLENGTH_8B; huart3.Init.StopBits = UART_STOPBITS_1; huart3.Init.Parity = UART_PARITY_NONE; huart3.Init.Mode = UART_MODE_TX_RX; huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE; huart3.Init.OverSampling = UART_OVERSAMPLING_16; if (HAL_UART_Init(&huart3) != HAL_OK) { Error_Handler(); } / USER CODE BEGIN USART3_Init 2 / / USER CODE END USART3_Init 2 / } /* * @brief USB_OTG_FS Initialization Function * @param None * @retval None / static void MX_USB_OTG_FS_PCD_Init(void) { / USER CODE BEGIN USB_OTG_FS_Init 0 / / USER CODE END USB_OTG_FS_Init 0 / / USER CODE BEGIN USB_OTG_FS_Init 1 / / USER CODE END USB_OTG_FS_Init 1 / hpcd_USB_OTG_FS.Instance = USB_OTG_FS; hpcd_USB_OTG_FS.Init.dev_endpoints = 4; hpcd_USB_OTG_FS.Init.speed = PCD_SPEED_FULL; hpcd_USB_OTG_FS.Init.dma_enable = DISABLE; hpcd_USB_OTG_FS.Init.phy_itface = PCD_PHY_EMBEDDED; hpcd_USB_OTG_FS.Init.Sof_enable = ENABLE; hpcd_USB_OTG_FS.Init.low_power_enable = DISABLE; hpcd_USB_OTG_FS.Init.lpm_enable = DISABLE; hpcd_USB_OTG_FS.Init.vbus_sensing_enable = ENABLE; hpcd_USB_OTG_FS.Init.use_dedicated_ep1 = DISABLE; if (HAL_PCD_Init(&hpcd_USB_OTG_FS) != HAL_OK) { Error_Handler(); } / USER CODE BEGIN USB_OTG_FS_Init 2 / / USER CODE END USB_OTG_FS_Init 2 / } /* * @brief GPIO Initialization Function * @param None * @retval None / static void MX_GPIO_Init(void) { GPIO_InitTypeDef GPIO_InitStruct = {0}; / GPIO Ports Clock Enable / __HAL_RCC_GPIOC_CLK_ENABLE(); __HAL_RCC_GPIOH_CLK_ENABLE(); __HAL_RCC_GPIOA_CLK_ENABLE(); __HAL_RCC_GPIOB_CLK_ENABLE(); __HAL_RCC_GPIOD_CLK_ENABLE(); __HAL_RCC_GPIOG_CLK_ENABLE(); /Configure GPIO pin Output Level / HAL_GPIO_WritePin(GPIOB, LD1_Pin\|LD3_Pin\|LD2_Pin, GPIO_PIN_RESET); /Configure GPIO pin Output Level / HAL_GPIO_WritePin(USB_PowerSwitchOn_GPIO_Port, USB_PowerSwitchOn_Pin, GPIO_PIN_RESET); /Configure GPIO pin : USER_Btn_Pin / GPIO_InitStruct.Pin = USER_Btn_Pin; GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(USER_Btn_GPIO_Port, &GPIO_InitStruct); /Configure GPIO pins : LD1_Pin LD3_Pin LD2_Pin / GPIO_InitStruct.Pin = LD1_Pin\|LD3_Pin\|LD2_Pin; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); /Configure GPIO pin : USB_PowerSwitchOn_Pin / GPIO_InitStruct.Pin = USB_PowerSwitchOn_Pin; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(USB_PowerSwitchOn_GPIO_Port, &GPIO_InitStruct); /Configure GPIO pin : USB_OverCurrent_Pin / GPIO_InitStruct.Pin = USB_OverCurrent_Pin; GPIO_InitStruct.Mode = GPIO_MODE_INPUT; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(USB_OverCurrent_GPIO_Port, &GPIO_InitStruct); } / USER CODE BEGIN 4 / / 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 / __disable_irq(); 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 %drn", file, line) / / USER CODE END 6 / } #endif / USE_FULL_ASSERT / /********************* (C) COPYRIGHT STMicroelectronics *END OF FILE**/ 0
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答案对人有帮助，有参考价值 0 我不知道从哪里开始解决这个疯狂问题。这就是发明调试器的目的。猜测：如果没有网络连接，MX_ETH_Init() 不会返回。

2023-1-6 14:40:21 评论举报刘鹏