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Diffstat (limited to 'Projects/NUCLEO-WB35CE/Examples_MIX/I2C/I2C_OneBoard_ComSlave7_10bits_IT/Src/main.c')
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diff --git a/Projects/NUCLEO-WB35CE/Examples_MIX/I2C/I2C_OneBoard_ComSlave7_10bits_IT/Src/main.c b/Projects/NUCLEO-WB35CE/Examples_MIX/I2C/I2C_OneBoard_ComSlave7_10bits_IT/Src/main.c new file mode 100644 index 000000000..50d2dfba8 --- /dev/null +++ b/Projects/NUCLEO-WB35CE/Examples_MIX/I2C/I2C_OneBoard_ComSlave7_10bits_IT/Src/main.c @@ -0,0 +1,500 @@ +/* USER CODE BEGIN Header */ +/** + ****************************************************************************** + * @file Examples_MIX/I2C/I2C_OneBoard_ComSlave7_10bits_IT/Src/main.c + * @author MCD Application Team + * @brief This sample code shows how to use STM32WBxx I2C HAL and LL API + * to transmit and receive a data buffer with a communication process + * based on IT transfer. + * The communication is done using 1 Board. + ****************************************************************************** + * @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 ---------------------------------------------------------*/ +I2C_HandleTypeDef hi2c1; +I2C_HandleTypeDef hi2c3; + +/* USER CODE BEGIN PV */ +/* Buffer used for transmission */ +uint8_t aTxBuffer[] = " ****I2C_OneBoard communication based on IT**** ****I2C_OneBoard communication based on IT**** ****I2C_OneBoard communication based on IT**** "; + +/* 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_I2C1_Init(void); +static void MX_I2C3_Init(void); +/* USER CODE BEGIN PFP */ +static uint16_t Buffercmp(uint8_t *pBuffer1, uint8_t *pBuffer2, uint16_t BufferLength); +static void Flush_Buffer(uint8_t* pBuffer, uint16_t BufferLength); +/* 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 */ + /* Configure LED2 and LED3 */ + BSP_LED_Init(LED2); + BSP_LED_Init(LED3); + /* USER CODE END SysInit */ + + /* Initialize all configured peripherals */ + MX_GPIO_Init(); + MX_I2C1_Init(); + MX_I2C3_Init(); + /* USER CODE BEGIN 2 */ + + /* Enable the Analog I2C Filter */ + HAL_I2CEx_ConfigAnalogFilter(&hi2c1,I2C_ANALOGFILTER_ENABLE); + + + /* Enable the Analog I2C Filter */ + HAL_I2CEx_ConfigAnalogFilter(&hi2c1,I2C_ANALOGFILTER_ENABLE); + + /* Configure User push-button (SW1) button */ + BSP_PB_Init(BUTTON_SW1,BUTTON_MODE_GPIO); + + /* Wait for User push-button (SW1) press before starting the Communication */ + while (BSP_PB_GetState(BUTTON_SW1) != GPIO_PIN_RESET) + { + } + + /* Wait for User push-button (SW1) release before starting the Communication */ + while (BSP_PB_GetState(BUTTON_SW1) != GPIO_PIN_SET) + { + } + + /*##-3- Slave1 and Slave2 Receive process from master ####################*/ + /* Receive data through "aRxBuffer" buffer */ + while(HAL_I2C_Slave_Receive_IT(&hi2c1, (uint8_t*)&aRxBuffer, RXBUFFERSIZE)!= HAL_OK) + { + } + + /*##-4- Master Transmit process for Slave1 ###############################*/ + /* Transmit data through "aTxBuffer" buffer */ + while(HAL_I2C_Master_Transmit_IT(&hi2c3, (uint16_t)I2C_SLAVE_ADDRESS1, (uint8_t*)&aTxBuffer, TXBUFFERSIZE)!= HAL_OK) + { + /* Error_Handler() function is called when Timeout error occurs. + When Acknowledge failure occurs (Slave don't acknowledge its address) + Master restarts communication */ + if (HAL_I2C_GetError(&hi2c3) != HAL_I2C_ERROR_AF) + { + 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_I2C_GetState(&hi2c1) != HAL_I2C_STATE_READY) + { + } + + while (HAL_I2C_GetState(&hi2c3) != HAL_I2C_STATE_READY) + { + } + + /*##-6- Compare the sent and received buffers ##############################*/ + if(Buffercmp((uint8_t*)aTxBuffer, (uint8_t*)aRxBuffer, TXBUFFERSIZE)) + { + /* Processing Error */ + Error_Handler(); + } + + /* Toggle LED2: Transfer in reception Slave1 process is correct */ + BSP_LED_Toggle(LED2); + + /* Flush Rx buffers */ + Flush_Buffer((uint8_t*)aRxBuffer,RXBUFFERSIZE); + + /* Wait for User push-button (SW1) press before starting the Communication with Slave2 */ + while (BSP_PB_GetState(BUTTON_SW1) != GPIO_PIN_RESET) + { + } + + /* Wait for User push-button (SW1) release before starting the Communication with Slave2 */ + while (BSP_PB_GetState(BUTTON_SW1) != GPIO_PIN_SET) + { + } + + /*##-7- Slave1 and Slave2 Transmit process for master ######################*/ + while(HAL_I2C_Slave_Transmit_IT(&hi2c1, (uint8_t*)&aTxBuffer, TXBUFFERSIZE)!= HAL_OK) + { + } + + /*##-8- Configure the I2C MASTER peripheral to discuss with Slave2 (7-Bit address) #*/ + /* Using LL interface, initializes directly the I2C MASTER peripheral in 7-Bit addressing mode*/ + LL_I2C_SetMasterAddressingMode(hi2c3.Instance, I2C_ADDRESSINGMODE_7BIT); + + /* Following code sequence is needed in order to keep I2C handle structure */ + /* content in line with IP configuration */ + hi2c3.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; + + /* Using HAL interface, following interface must be used : */ + /* - HAL_I2C_DeInit() then HAL_I2C_Init() to deInitializes then Initializes */ + /* the I2C MASTER peripheral to perform an update of AddressingMode Init parameter */ + + /*##-9- Put I2C peripheral in Reception process from Slave 2 ###############*/ + while(HAL_I2C_Master_Receive_IT(&hi2c3, (uint16_t)I2C_SLAVE_ADDRESS2, (uint8_t*)&aRxBuffer, TXBUFFERSIZE)!= HAL_OK) + { + /* Error_Handler() function is called when Timeout error occurs. + When Acknowledge failure occurs (Slave don't acknowledge its address) + Master restarts communication */ + if (HAL_I2C_GetError(&hi2c3) != HAL_I2C_ERROR_AF) + { + Error_Handler(); + } + } + + /*##-10- 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_I2C_GetState(&hi2c1) != HAL_I2C_STATE_READY) + { + } + + while (HAL_I2C_GetState(&hi2c3) != HAL_I2C_STATE_READY) + { + } + + /*##-11- Compare the sent and received buffers #############################*/ + if(Buffercmp((uint8_t*)aTxBuffer, (uint8_t*)aRxBuffer, TXBUFFERSIZE)) + { + /* Processing Error */ + Error_Handler(); + } + + /* Toggle LED2: Transfer in Slave2 transmission process is correct */ + BSP_LED_Toggle(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 I2C1 Initialization Function + * @param None + * @retval None + */ +static void MX_I2C1_Init(void) +{ + + /* USER CODE BEGIN I2C1_Init 0 */ + + /* USER CODE END I2C1_Init 0 */ + + /* USER CODE BEGIN I2C1_Init 1 */ + + /* USER CODE END I2C1_Init 1 */ + hi2c1.Instance = I2C1; + hi2c1.Init.Timing = I2C_TIMING; + hi2c1.Init.OwnAddress1 = I2C_SLAVE_ADDRESS1; + hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_10BIT; + hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_ENABLE; + hi2c1.Init.OwnAddress2 = I2C_SLAVE_ADDRESS2; + hi2c1.Init.OwnAddress2Masks = I2C_OA2_NOMASK; + hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; + hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; + if (HAL_I2C_Init(&hi2c1) != HAL_OK) + { + Error_Handler(); + } + /** Configure Analogue filter + */ + if (HAL_I2CEx_ConfigAnalogFilter(&hi2c1, I2C_ANALOGFILTER_ENABLE) != HAL_OK) + { + Error_Handler(); + } + /** Configure Digital filter + */ + if (HAL_I2CEx_ConfigDigitalFilter(&hi2c1, 0) != HAL_OK) + { + Error_Handler(); + } + /* USER CODE BEGIN I2C1_Init 2 */ + + /* USER CODE END I2C1_Init 2 */ + +} + +/** + * @brief I2C3 Initialization Function + * @param None + * @retval None + */ +static void MX_I2C3_Init(void) +{ + + /* USER CODE BEGIN I2C3_Init 0 */ + + /* USER CODE END I2C3_Init 0 */ + + /* USER CODE BEGIN I2C3_Init 1 */ + + /* USER CODE END I2C3_Init 1 */ + hi2c3.Instance = I2C3; + hi2c3.Init.Timing = I2C_TIMING; + hi2c3.Init.OwnAddress1 = 0; + hi2c3.Init.AddressingMode = I2C_ADDRESSINGMODE_10BIT; + hi2c3.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; + hi2c3.Init.OwnAddress2 = 0; + hi2c3.Init.OwnAddress2Masks = I2C_OA2_NOMASK; + hi2c3.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; + hi2c3.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; + if (HAL_I2C_Init(&hi2c3) != HAL_OK) + { + Error_Handler(); + } + /** Configure Analogue filter + */ + if (HAL_I2CEx_ConfigAnalogFilter(&hi2c3, I2C_ANALOGFILTER_ENABLE) != HAL_OK) + { + Error_Handler(); + } + /** Configure Digital filter + */ + if (HAL_I2CEx_ConfigDigitalFilter(&hi2c3, 0) != HAL_OK) + { + Error_Handler(); + } + /* USER CODE BEGIN I2C3_Init 2 */ + + /* USER CODE END I2C3_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(); + __HAL_RCC_GPIOA_CLK_ENABLE(); + +} + +/* USER CODE BEGIN 4 */ + +/** + * @brief Compares two buffers. + * @param pBuffer1, pBuffer2: buffers to be compared. + * @param BufferLength: buffer's length + * @retval 0 : pBuffer1 identical to pBuffer2 + * >0 : pBuffer1 differs from pBuffer2 + */ +static uint16_t Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength) +{ + while (BufferLength--) + { + if ((*pBuffer1) != *pBuffer2) + { + return BufferLength; + } + pBuffer1++; + pBuffer2++; + } + + return 0; +} + +/** + * @brief Flushes the buffer + * @param pBuffer: buffers to be flushed. + * @param BufferLength: buffer's length + * @retval None + */ +static void Flush_Buffer(uint8_t* pBuffer, uint16_t BufferLength) +{ + while (BufferLength--) + { + *pBuffer = 0; + + pBuffer++; + } +} + +/** + * @brief I2C error callbacks. + * @param I2cHandle: I2C handle + * @note This example shows a simple way to report transfer error, and you can + * add your own implementation. + * @retval None + */ +void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *I2cHandle) +{ + /* Turn Off LED2 */ + BSP_LED_Off(LED2); + /* Turn On LED3 */ + 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, + tex: 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****/ |