crb_lte/Core/Src/usart.c

395 lines
10 KiB
C

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