395 lines
10 KiB
C
395 lines
10 KiB
C
/* USER CODE BEGIN Header */
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/**
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******************************************************************************
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* @file usart.c
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* @brief This file provides code for the configuration
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* of the USART instances.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2025 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* USER CODE END Header */
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/* Includes ------------------------------------------------------------------*/
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#include "usart.h"
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/* USER CODE BEGIN 0 */
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#include <stdbool.h>
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#define RING_BUFFER_SIZE 1500
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#define UART_RX_BUF_SIZE 128
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typedef struct
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{
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uint8_t data[RING_BUFFER_SIZE];
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uint16_t tail;
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uint16_t head;
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} ringbuffer_t;
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ringbuffer_t UART_RxData;
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uint8_t UART1_RxByte; // For single-byte interrupt reception
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uint8_t UART1_RxBuffer[UART_RX_BUF_SIZE]; // Circular or linear buffer
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volatile uint16_t uart1_rx_index = 0;
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volatile bool uart1_msg_ready = false;
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/* USER CODE END 0 */
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UART_HandleTypeDef hlpuart1;
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UART_HandleTypeDef huart1;
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/* LPUART1 init function */
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void MX_LPUART1_UART_Init(void)
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{
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/* USER CODE BEGIN LPUART1_Init 0 */
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/* USER CODE END LPUART1_Init 0 */
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/* USER CODE BEGIN LPUART1_Init 1 */
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/* USER CODE END LPUART1_Init 1 */
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hlpuart1.Instance = LPUART1;
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hlpuart1.Init.BaudRate = 115200;
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hlpuart1.Init.WordLength = UART_WORDLENGTH_8B;
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hlpuart1.Init.StopBits = UART_STOPBITS_1;
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hlpuart1.Init.Parity = UART_PARITY_NONE;
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hlpuart1.Init.Mode = UART_MODE_TX_RX;
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hlpuart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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hlpuart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
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hlpuart1.Init.ClockPrescaler = UART_PRESCALER_DIV1;
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hlpuart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
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hlpuart1.FifoMode = UART_FIFOMODE_DISABLE;
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if (HAL_UART_Init(&hlpuart1) != HAL_OK)
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{
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Error_Handler();
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}
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if (HAL_UARTEx_SetTxFifoThreshold(&hlpuart1, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
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{
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Error_Handler();
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}
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if (HAL_UARTEx_SetRxFifoThreshold(&hlpuart1, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
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{
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Error_Handler();
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}
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if (HAL_UARTEx_DisableFifoMode(&hlpuart1) != HAL_OK)
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{
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Error_Handler();
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}
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/* USER CODE BEGIN LPUART1_Init 2 */
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/* USER CODE END LPUART1_Init 2 */
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}
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/* USART1 init function */
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void MX_USART1_UART_Init(void)
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{
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/* USER CODE BEGIN USART1_Init 0 */
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/* USER CODE END USART1_Init 0 */
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/* USER CODE BEGIN USART1_Init 1 */
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/* USER CODE END USART1_Init 1 */
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huart1.Instance = USART1;
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huart1.Init.BaudRate = 115200;
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huart1.Init.WordLength = UART_WORDLENGTH_8B;
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huart1.Init.StopBits = UART_STOPBITS_1;
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huart1.Init.Parity = UART_PARITY_NONE;
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huart1.Init.Mode = UART_MODE_TX_RX;
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huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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huart1.Init.OverSampling = UART_OVERSAMPLING_16;
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huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
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huart1.Init.ClockPrescaler = UART_PRESCALER_DIV1;
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huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
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if (HAL_UART_Init(&huart1) != HAL_OK)
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{
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Error_Handler();
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}
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if (HAL_UARTEx_SetTxFifoThreshold(&huart1, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
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{
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Error_Handler();
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}
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if (HAL_UARTEx_SetRxFifoThreshold(&huart1, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
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{
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Error_Handler();
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}
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if (HAL_UARTEx_DisableFifoMode(&huart1) != HAL_OK)
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{
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Error_Handler();
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}
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/* USER CODE BEGIN USART1_Init 2 */
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UART_RxData.head = 0;
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UART_RxData.tail = 0;
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HAL_UART_Receive_IT(&huart1, (uint8_t*)&UART_RxData.data[UART_RxData.tail], 1);
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// /* USER CODE END USART1_Init 2 */
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}
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void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
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{
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
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if(uartHandle->Instance==LPUART1)
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{
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/* USER CODE BEGIN LPUART1_MspInit 0 */
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/* USER CODE END LPUART1_MspInit 0 */
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/** Initializes the peripherals clock
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*/
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PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_LPUART1;
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PeriphClkInit.Lpuart1ClockSelection = RCC_LPUART1CLKSOURCE_PCLK7;
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if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
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{
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Error_Handler();
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}
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/* LPUART1 clock enable */
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__HAL_RCC_LPUART1_CLK_ENABLE();
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__HAL_RCC_GPIOB_CLK_ENABLE();
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__HAL_RCC_GPIOA_CLK_ENABLE();
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/**LPUART1 GPIO Configuration
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PB11 ------> LPUART1_TX
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PA10 ------> LPUART1_RX
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*/
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GPIO_InitStruct.Pin = DEBUG_TX_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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GPIO_InitStruct.Alternate = GPIO_AF8_LPUART1;
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HAL_GPIO_Init(DEBUG_TX_GPIO_Port, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = DEBUG_RX_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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GPIO_InitStruct.Alternate = GPIO_AF8_LPUART1;
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HAL_GPIO_Init(DEBUG_RX_GPIO_Port, &GPIO_InitStruct);
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/* USER CODE BEGIN LPUART1_MspInit 1 */
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/* USER CODE END LPUART1_MspInit 1 */
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}
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else if(uartHandle->Instance==USART1)
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{
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/* USER CODE BEGIN USART1_MspInit 0 */
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/* USER CODE END USART1_MspInit 0 */
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/** Initializes the peripherals clock
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*/
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PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1;
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PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK2;
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if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
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{
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Error_Handler();
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}
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/* USART1 clock enable */
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__HAL_RCC_USART1_CLK_ENABLE();
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__HAL_RCC_GPIOB_CLK_ENABLE();
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__HAL_RCC_GPIOA_CLK_ENABLE();
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/**USART1 GPIO Configuration
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PB12 ------> USART1_TX
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PA8 ------> USART1_RX
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*/
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GPIO_InitStruct.Pin = LTE_TX_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
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HAL_GPIO_Init(LTE_TX_GPIO_Port, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = LTE_RX_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
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HAL_GPIO_Init(LTE_RX_GPIO_Port, &GPIO_InitStruct);
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/* USART1 interrupt Init */
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HAL_NVIC_SetPriority(USART1_IRQn, 0, 0);
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HAL_NVIC_EnableIRQ(USART1_IRQn);
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/* USER CODE BEGIN USART1_MspInit 1 */
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/* USER CODE END USART1_MspInit 1 */
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}
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}
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void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
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{
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if(uartHandle->Instance==LPUART1)
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{
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/* USER CODE BEGIN LPUART1_MspDeInit 0 */
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/* USER CODE END LPUART1_MspDeInit 0 */
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/* Peripheral clock disable */
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__HAL_RCC_LPUART1_CLK_DISABLE();
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/**LPUART1 GPIO Configuration
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PB11 ------> LPUART1_TX
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PA10 ------> LPUART1_RX
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*/
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HAL_GPIO_DeInit(DEBUG_TX_GPIO_Port, DEBUG_TX_Pin);
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HAL_GPIO_DeInit(DEBUG_RX_GPIO_Port, DEBUG_RX_Pin);
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/* USER CODE BEGIN LPUART1_MspDeInit 1 */
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/* USER CODE END LPUART1_MspDeInit 1 */
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}
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else if(uartHandle->Instance==USART1)
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{
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/* USER CODE BEGIN USART1_MspDeInit 0 */
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/* USER CODE END USART1_MspDeInit 0 */
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/* Peripheral clock disable */
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__HAL_RCC_USART1_CLK_DISABLE();
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/**USART1 GPIO Configuration
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PB12 ------> USART1_TX
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PA8 ------> USART1_RX
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*/
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HAL_GPIO_DeInit(LTE_TX_GPIO_Port, LTE_TX_Pin);
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HAL_GPIO_DeInit(LTE_RX_GPIO_Port, LTE_RX_Pin);
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/* USART1 interrupt Deinit */
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HAL_NVIC_DisableIRQ(USART1_IRQn);
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/* USER CODE BEGIN USART1_MspDeInit 1 */
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/* USER CODE END USART1_MspDeInit 1 */
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}
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}
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/* USER CODE BEGIN 1 */
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int8_t LTE_UART_SetBaudrate(uint32_t baudrate)
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{
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HAL_UART_DeInit(&huart1);
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huart1.Init.BaudRate = baudrate;
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if (HAL_UART_Init(&huart1) != HAL_OK)
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{
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return -1;
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}
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UART_RxData.head = 0;
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UART_RxData.tail = 0;
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// HAL_UART_Receive_IT(&huart1, (uint8_t *)&UART_RxData.data[UART_RxData.tail], 1);
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return 0;
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}
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void LTE_UART_FlushBuffer(void)
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{
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memset(UART_RxData.data, 0, RING_BUFFER_SIZE);
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UART_RxData.head = 0;
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UART_RxData.tail = 0;
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}
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int16_t LTE_UART_SendData(uint8_t *pData, uint16_t length)
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{
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if(HAL_UART_Transmit(&huart1, (uint8_t*)pData, length, HAL_MAX_DELAY) != HAL_OK)
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{
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return -1;
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}
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return 0;
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}
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int16_t LTE_UART_ReceiveSingleData(uint8_t *pSingleData)
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{
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if (UART_RxData.head != UART_RxData.tail)
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{
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*pSingleData = UART_RxData.data[UART_RxData.head++];
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if (UART_RxData.head >= RING_BUFFER_SIZE)
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{
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UART_RxData.head = 0;
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}
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} else
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{
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return -1;
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}
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return 0;
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}
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void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
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{
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if (++UART_RxData.tail >= RING_BUFFER_SIZE)
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{
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UART_RxData.tail = 0;
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}
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HAL_UART_Receive_IT(huart, (uint8_t*) &UART_RxData.data[UART_RxData.tail], 1);
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}
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#pragma module_name = "?__write"
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size_t __write(int handle, const unsigned char *buffer, size_t size)
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{
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if (handle != _LLIO_STDOUT && handle != _LLIO_STDERR)
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return _LLIO_ERROR;
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for (size_t i = 0; i < size; ++i)
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{
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HAL_UART_Transmit(&hlpuart1, (uint8_t *)&buffer[i], 1, HAL_MAX_DELAY);
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}
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return size;
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}
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void LTE_SendATCommand_Test(const char *cmd)
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{
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HAL_UART_Transmit(&huart1, (uint8_t *)cmd, strlen(cmd), 1000);
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}
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/* For Testing Purposes ONLY */
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void LTE_ATSendCommand(const char *cmd, int timeout)
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{
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// const char *cmd = "AT\r\n";
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uint8_t rx_byte;
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uint8_t rx_buff[100] = {0};
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int idx = 0;
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uint32_t startTick;
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// Transmit AT Command
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if (HAL_UART_Transmit(&huart1, (uint8_t *)cmd, strlen(cmd), 1000) != HAL_OK)
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{
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APP_ERROR_MSG("UART TX Failed\r\n");
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return;
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}
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// Wait and read each byte until timeout or buffer full
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startTick = HAL_GetTick();
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while ((HAL_GetTick() - startTick) < timeout && idx < sizeof(rx_buff) - 1)
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{
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if (HAL_UART_Receive(&huart1, &rx_byte, 1, 10) == HAL_OK)
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{
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rx_buff[idx++] = rx_byte;
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// Reset timeout if still receiving
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startTick = HAL_GetTick();
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}
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}
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rx_buff[idx] = '\0'; // Null-terminate the received string
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APP_LTE_MSG(" %s\r\n", rx_buff);
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}
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/* USER CODE END 1 */
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