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Diffstat (limited to 'Projects/NUCLEO-WB35CE/Examples/UART/UART_HyperTerminal_IT/Src/main.c')
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1 files changed, 377 insertions, 0 deletions
diff --git a/Projects/NUCLEO-WB35CE/Examples/UART/UART_HyperTerminal_IT/Src/main.c b/Projects/NUCLEO-WB35CE/Examples/UART/UART_HyperTerminal_IT/Src/main.c new file mode 100644 index 000000000..72551ecd8 --- /dev/null +++ b/Projects/NUCLEO-WB35CE/Examples/UART/UART_HyperTerminal_IT/Src/main.c @@ -0,0 +1,377 @@ +/* USER CODE BEGIN Header */ +/** + ****************************************************************************** + * @file UART/UART_HyperTerminal_IT/Src/main.c + * @author MCD Application Team + * @brief This sample code shows how to use UART HAL API to transmit + * and receive a data buffer with a communication process based on + * Interrupt transfer. + * The communication is done with the Hyperterminal PC application. + ****************************************************************************** + * @attention + * + * <h2><center>© Copyright (c) 2019 STMicroelectronics. + * All rights reserved.</center></h2> + * + * This software component is licensed by ST under BSD 3-Clause license, + * the "License"; You may not use this file except in compliance with the + * License. You may obtain a copy of the License at: + * opensource.org/licenses/BSD-3-Clause + * + ****************************************************************************** + */ +/* USER CODE END Header */ + +/* 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 ---------------------------------------------------------*/ +UART_HandleTypeDef huart1; + +/* USER CODE BEGIN PV */ +/* Buffer used for transmission */ +uint8_t aTxStartMessage[] = "\n\r ****UART-Hyperterminal communication based on IT ****\n\r Enter 10 characters using keyboard :\n\r"; +uint8_t aTxEndMessage[] = "\n\r Example Finished\n\r"; + +/* Buffer used for reception */ +uint8_t aRxBuffer[RXBUFFERSIZE]; +/* USER CODE END PV */ + +/* Private function prototypes -----------------------------------------------*/ +void SystemClock_Config(void); +static void MX_GPIO_Init(void); +static void MX_USART1_UART_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 */ + /* STM32WBxx 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 + */ + /* 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 */ + /* Configure leds */ + /* Configure LED2 and LED3 */ + BSP_LED_Init(LED2); + BSP_LED_Init(LED3); + /* USER CODE END SysInit */ + + /* Initialize all configured peripherals */ + MX_GPIO_Init(); + MX_USART1_UART_Init(); + /* USER CODE BEGIN 2 */ + + /*##-1- Start the transmission process #####################################*/ + /* While the UART in reception process, user can transmit data through + "aTxBuffer" buffer */ + if(HAL_UART_Transmit_IT(&huart1, (uint8_t*)aTxStartMessage, TXSTARTMESSAGESIZE)!= HAL_OK) + { + /* Transfer error in transmission process */ + Error_Handler(); + } + + /*##-2- Put UART peripheral in reception process ###########################*/ + /* Any data received will be stored in "aRxBuffer" buffer : the number max of + data received is 10 */ + if(HAL_UART_Receive_IT(&huart1, (uint8_t *)aRxBuffer, RXBUFFERSIZE) != HAL_OK) + { + /* Transfer error in reception process */ + Error_Handler(); + } + + /*##-3- Wait for the end of the transfer ###################################*/ + /* Before starting a new communication transfer, you need to check the current + state of the peripheral; if it’s busy you need to wait for the end of current + transfer before starting a new one. + For simplicity reasons, this example is just waiting till the end of the + transfer, but application may perform other tasks while transfer operation + is ongoing. */ + while (HAL_UART_GetState(&huart1) != HAL_UART_STATE_READY) + { + } + + /*##-4- Send the received Buffer ###########################################*/ + if(HAL_UART_Transmit_IT(&huart1, (uint8_t*)aRxBuffer, RXBUFFERSIZE)!= HAL_OK) + { + /* Transfer error in transmission process */ + Error_Handler(); + } + + /*##-5- Wait for the end of the transfer ###################################*/ + /* Before starting a new communication transfer, you need to check the current + state of the peripheral; if it’s busy you need to wait for the end of current + transfer before starting a new one. + For simplicity reasons, this example is just waiting till the end of the + transfer, but application may perform other tasks while transfer operation + is ongoing. */ + while (HAL_UART_GetState(&huart1) != HAL_UART_STATE_READY) + { + } + + /*##-6- Send the End Message ###############################################*/ + if(HAL_UART_Transmit_IT(&huart1, (uint8_t*)aTxEndMessage, TXENDMESSAGESIZE)!= HAL_OK) + { + /* Transfer error in transmission process */ + Error_Handler(); + } + + /*##-7- Wait for the end of the transfer ###################################*/ + while (HAL_UART_GetState(&huart1) != HAL_UART_STATE_READY) + { + } + + /* Turn on LED2 if test passes then enter infinite loop */ + BSP_LED_On(LED2); + + /* USER CODE END 2 */ + + /* Infinite loop */ + /* USER CODE BEGIN WHILE */ + while (1) + { + /* 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}; + + /** 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_6; + RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; + RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI; + RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV1; + RCC_OscInitStruct.PLL.PLLN = 32; + RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; + RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2; + RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2; + if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) + { + Error_Handler(); + } + /** Configure the SYSCLKSource, HCLK, PCLK1 and PCLK2 clocks dividers + */ + RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK4|RCC_CLOCKTYPE_HCLK2 + |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_DIV1; + RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; + RCC_ClkInitStruct.AHBCLK2Divider = RCC_SYSCLK_DIV2; + RCC_ClkInitStruct.AHBCLK4Divider = RCC_SYSCLK_DIV1; + + if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3) != HAL_OK) + { + Error_Handler(); + } + /** Initializes the peripherals clocks + */ + /* USER CODE BEGIN Smps */ + + /* USER CODE END Smps */ +} + +/** + * @brief USART1 Initialization Function + * @param None + * @retval None + */ +static void MX_USART1_UART_Init(void) +{ + + /* USER CODE BEGIN USART1_Init 0 */ + + /* USER CODE END USART1_Init 0 */ + + /* USER CODE BEGIN USART1_Init 1 */ + + /* USER CODE END USART1_Init 1 */ + huart1.Instance = USART1; + huart1.Init.BaudRate = 9600; + huart1.Init.WordLength = UART_WORDLENGTH_8B; + huart1.Init.StopBits = UART_STOPBITS_1; + huart1.Init.Parity = UART_PARITY_ODD; + huart1.Init.Mode = UART_MODE_TX_RX; + huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE; + huart1.Init.OverSampling = UART_OVERSAMPLING_16; + huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE; + huart1.Init.ClockPrescaler = UART_PRESCALER_DIV1; + huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT; + if (HAL_UART_Init(&huart1) != HAL_OK) + { + Error_Handler(); + } + if (HAL_UARTEx_SetTxFifoThreshold(&huart1, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK) + { + Error_Handler(); + } + if (HAL_UARTEx_SetRxFifoThreshold(&huart1, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK) + { + Error_Handler(); + } + if (HAL_UARTEx_DisableFifoMode(&huart1) != HAL_OK) + { + Error_Handler(); + } + /* USER CODE BEGIN USART1_Init 2 */ + + /* USER CODE END USART1_Init 2 */ + +} + +/** + * @brief GPIO Initialization Function + * @param None + * @retval None + */ +static void MX_GPIO_Init(void) +{ + + /* GPIO Ports Clock Enable */ + __HAL_RCC_GPIOB_CLK_ENABLE(); + +} + +/* USER CODE BEGIN 4 */ + + +/** + * @brief Tx Transfer completed callback + * @param UartHandle: UART handle. + * @note This example shows a simple way to report end of IT Tx transfer, and + * you can add your own implementation. + * @retval None + */ +void HAL_UART_TxCpltCallback(UART_HandleTypeDef *UartHandle) +{ +} + +/** + * @brief Rx Transfer completed callback + * @param UartHandle: UART handle + * @note This example shows a simple way to report end of IT Rx transfer, and + * you can add your own implementation. + * @retval None + */ +void HAL_UART_RxCpltCallback(UART_HandleTypeDef *UartHandle) +{ +} + +/** + * @brief UART error callbacks + * @param UartHandle: UART handle + * @note This example shows a simple way to report transfer error, and you can + * add your own implementation. + * @retval None + */ +void HAL_UART_ErrorCallback(UART_HandleTypeDef *UartHandle) +{ + /* Turn LED3 on: Transfer error in reception/transmission process */ + BSP_LED_On(LED3); +} + + +/* 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 */ + /* Turn LED3 on */ + BSP_LED_On(LED3); + 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 */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |