You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
262 lines
7.7 KiB
262 lines
7.7 KiB
/******************************************************************************
|
|
* @file vcom.c
|
|
* @author MCD Application Team
|
|
* @version V1.1.2
|
|
* @date 08-September-2017
|
|
* @brief manages virtual com port
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* <h2><center>© Copyright (c) 2017 STMicroelectronics International N.V.
|
|
* All rights reserved.</center></h2>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted, provided that the following conditions are met:
|
|
*
|
|
* 1. Redistribution of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
* 3. Neither the name of STMicroelectronics nor the names of other
|
|
* contributors to this software may be used to endorse or promote products
|
|
* derived from this software without specific written permission.
|
|
* 4. This software, including modifications and/or derivative works of this
|
|
* software, must execute solely and exclusively on microcontroller or
|
|
* microprocessor devices manufactured by or for STMicroelectronics.
|
|
* 5. Redistribution and use of this software other than as permitted under
|
|
* this license is void and will automatically terminate your rights under
|
|
* this license.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
|
|
* PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
|
|
* RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
|
|
* SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
|
|
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
|
|
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
|
|
#include "hw.h"
|
|
#include "vcom.h"
|
|
#include <stdarg.h>
|
|
|
|
|
|
/* Private typedef -----------------------------------------------------------*/
|
|
/* Private define ------------------------------------------------------------*/
|
|
#define BUFSIZE 256
|
|
#define USARTX_IRQn USART2_IRQn
|
|
/* Private macro -------------------------------------------------------------*/
|
|
/* Private variables ---------------------------------------------------------*/
|
|
|
|
/* buffer */
|
|
static char buff[BUFSIZE];
|
|
/* buffer write index*/
|
|
__IO uint16_t iw=0;
|
|
/* buffer read index*/
|
|
static uint16_t ir=0;
|
|
/* Uart Handle */
|
|
static UART_HandleTypeDef UartHandle;
|
|
|
|
/* Private function prototypes -----------------------------------------------*/
|
|
/* Functions Definition ------------------------------------------------------*/
|
|
|
|
void vcom_Init(void)
|
|
{
|
|
/*## Configure the UART peripheral ######################################*/
|
|
/* Put the USART peripheral in the Asynchronous mode (UART Mode) */
|
|
/* UART1 configured as follow:
|
|
- Word Length = 8 Bits
|
|
- Stop Bit = One Stop bit
|
|
- Parity = ODD parity
|
|
- BaudRate = 921600 baud
|
|
- Hardware flow control disabled (RTS and CTS signals) */
|
|
UartHandle.Instance = USARTX;
|
|
|
|
UartHandle.Init.BaudRate = 115200;
|
|
UartHandle.Init.WordLength = UART_WORDLENGTH_8B;
|
|
UartHandle.Init.StopBits = UART_STOPBITS_1;
|
|
UartHandle.Init.Parity = UART_PARITY_NONE;
|
|
UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
|
|
UartHandle.Init.Mode = UART_MODE_TX_RX;
|
|
|
|
if(HAL_UART_Init(&UartHandle) != HAL_OK)
|
|
{
|
|
/* Initialization Error */
|
|
Error_Handler();
|
|
}
|
|
|
|
HAL_NVIC_SetPriority(USARTX_IRQn, 0x1, 0);
|
|
HAL_NVIC_EnableIRQ(USARTX_IRQn);
|
|
}
|
|
|
|
|
|
void vcom_DeInit(void)
|
|
{
|
|
#if 1
|
|
HAL_UART_DeInit(&UartHandle);
|
|
#endif
|
|
}
|
|
|
|
void vcom_Send( char *format, ... )
|
|
{
|
|
va_list args;
|
|
va_start(args, format);
|
|
uint8_t len;
|
|
uint8_t lenTop;
|
|
char tempBuff[128];
|
|
|
|
BACKUP_PRIMASK();
|
|
DISABLE_IRQ();
|
|
|
|
/*convert into string at buff[0] of length iw*/
|
|
len = vsprintf(&tempBuff[0], format, args);
|
|
|
|
if (iw+len<BUFSIZE)
|
|
{
|
|
memcpy( &buff[iw], &tempBuff[0], len);
|
|
iw+=len;
|
|
}
|
|
else
|
|
{
|
|
lenTop=BUFSIZE-iw;
|
|
memcpy( &buff[iw], &tempBuff[0], lenTop);
|
|
len-=lenTop;
|
|
memcpy( &buff[0], &tempBuff[lenTop], len);
|
|
iw = len;
|
|
}
|
|
RESTORE_PRIMASK();
|
|
|
|
HAL_NVIC_SetPendingIRQ(USARTX_IRQn);
|
|
|
|
va_end(args);
|
|
}
|
|
|
|
/* modifes only ir*/
|
|
void vcom_Print( void)
|
|
{
|
|
char* CurChar;
|
|
while( ( (iw+BUFSIZE-ir)%BUFSIZE) >0 )
|
|
{
|
|
BACKUP_PRIMASK();
|
|
DISABLE_IRQ();
|
|
|
|
CurChar = &buff[ir];
|
|
ir= (ir+1) %BUFSIZE;
|
|
|
|
RESTORE_PRIMASK();
|
|
|
|
HAL_UART_Transmit(&UartHandle,(uint8_t *) CurChar, 1, 300);
|
|
}
|
|
HAL_NVIC_ClearPendingIRQ(USARTX_IRQn);
|
|
}
|
|
|
|
void vcom_Send_Lp( char *format, ... )
|
|
{
|
|
va_list args;
|
|
va_start(args, format);
|
|
uint8_t len;
|
|
uint8_t lenTop;
|
|
char tempBuff[128];
|
|
|
|
BACKUP_PRIMASK();
|
|
DISABLE_IRQ();
|
|
|
|
/*convert into string at buff[0] of length iw*/
|
|
len = vsprintf(&tempBuff[0], format, args);
|
|
|
|
if (iw+len<BUFSIZE)
|
|
{
|
|
memcpy( &buff[iw], &tempBuff[0], len);
|
|
iw+=len;
|
|
}
|
|
else
|
|
{
|
|
lenTop=BUFSIZE-iw;
|
|
memcpy( &buff[iw], &tempBuff[0], lenTop);
|
|
len-=lenTop;
|
|
memcpy( &buff[0], &tempBuff[lenTop], len);
|
|
iw = len;
|
|
}
|
|
RESTORE_PRIMASK();
|
|
|
|
va_end(args);
|
|
}
|
|
/**
|
|
* @brief UART MSP Initialization
|
|
* This function configures the hardware resources used in this example:
|
|
* - Peripheral's clock enable
|
|
* - Peripheral's GPIO Configuration
|
|
* - NVIC configuration for UART interrupt request enable
|
|
* @param huart: UART handle pointer
|
|
* @retval None
|
|
*/
|
|
void HAL_UART_MspInit(UART_HandleTypeDef *huart)
|
|
{
|
|
|
|
/*##-1- Enable peripherals and GPIO Clocks #################################*/
|
|
|
|
/* Enable USART1 clock */
|
|
USARTX_CLK_ENABLE();
|
|
|
|
/*##-2- Configure peripheral GPIO ##########################################*/
|
|
vcom_IoInit( );
|
|
}
|
|
|
|
void vcom_IoInit(void)
|
|
{
|
|
GPIO_InitTypeDef GPIO_InitStruct={0};
|
|
/* Enable GPIO TX/RX clock */
|
|
USARTX_TX_GPIO_CLK_ENABLE();
|
|
USARTX_RX_GPIO_CLK_ENABLE();
|
|
/* UART TX GPIO pin configuration */
|
|
GPIO_InitStruct.Pin = USARTX_TX_PIN;
|
|
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
|
|
GPIO_InitStruct.Pull = GPIO_PULLUP;
|
|
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
|
|
GPIO_InitStruct.Alternate = USARTX_TX_AF;
|
|
|
|
HAL_GPIO_Init(USARTX_TX_GPIO_PORT, &GPIO_InitStruct);
|
|
|
|
/* UART RX GPIO pin configuration */
|
|
GPIO_InitStruct.Pin = USARTX_RX_PIN;
|
|
GPIO_InitStruct.Alternate = USARTX_RX_AF;
|
|
|
|
HAL_GPIO_Init(USARTX_RX_GPIO_PORT, &GPIO_InitStruct);
|
|
}
|
|
|
|
void vcom_IoDeInit(void)
|
|
{
|
|
GPIO_InitTypeDef GPIO_InitStructure={0};
|
|
|
|
USARTX_TX_GPIO_CLK_ENABLE();
|
|
USARTX_RX_GPIO_CLK_ENABLE();
|
|
|
|
GPIO_InitStructure.Mode = GPIO_MODE_ANALOG;
|
|
GPIO_InitStructure.Pull = GPIO_NOPULL;
|
|
|
|
GPIO_InitStructure.Pin = USARTX_TX_PIN ;
|
|
HAL_GPIO_Init( USARTX_TX_GPIO_PORT, &GPIO_InitStructure );
|
|
|
|
GPIO_InitStructure.Pin = USARTX_RX_PIN ;
|
|
HAL_GPIO_Init( USARTX_RX_GPIO_PORT, &GPIO_InitStructure );
|
|
}
|
|
|
|
/**
|
|
* @brief UART MSP DeInit
|
|
* @param huart: uart handle
|
|
* @retval None
|
|
*/
|
|
void HAL_UART_MspDeInit(UART_HandleTypeDef *huart)
|
|
{
|
|
vcom_IoDeInit( );
|
|
}
|
|
|
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
|
|