340 lines
9.6 KiB
C
340 lines
9.6 KiB
C
#include "usart.h"
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#include "delay.h"
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#include "timer.h"
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#include "EC800M.h"
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//////////////////////////////////////////////////////////////////////////////////
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//如果使用os,则包括下面的头文件即可.
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#if 1
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#pragma import(__use_no_semihosting)
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//标准库需要的支持函数
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struct __FILE
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{
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int handle;
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};
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FILE __stdout;
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//定义_sys_exit()以避免使用半主机模式
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void _sys_exit(int x)
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{
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x = x;
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}
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//重定义fputc函数
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int fputc(int ch, FILE *f)
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{
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while((USART1->SR&0X40)==0);//循环发送,直到发送完毕
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USART1->DR = (u8) ch;
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return ch;
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}
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#endif
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u8 RX1_len; //定义接收数据的字符长度
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u8 RX2_len; //定义接收数据的字符长度
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u8 RX3_len; //定义接收数据的字符长度
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#if 1 //如果使能了接收
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//串口1中断服务程序
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//注意,读取USARTx->SR能避免莫名其妙的错误
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u8 USART_RX_BUF[USART_REC_LEN]; //接收缓冲,最大USART_REC_LEN个字节.
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u8 USART2_RX_BUF[USART_REC_LEN]; //接收缓冲,最大USART_REC_LEN个字节.
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//USART3.C内容：
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u8 USART3_RX_BUF[USART3_MAX_RECV_LEN]; //接收缓冲,最大USART3_MAX_RECV_LEN个字节.
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u8 USART3_TX_BUF[USART3_MAX_SEND_LEN]; //发送缓冲,最大USART3_MAX_SEND_LEN字节
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u16 _tmpx_RX_STA,USART_RX_STA=0; //接收状态标记
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u16 _tmpy_RX_STA,USART2_RX_STA=0; //接收状态标记
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u16 _tmpz_RX_STA,USART3_RX_STA=0; //接收状态标记
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u8 aRxBuffer[RXBUFFERSIZE];//HAL库使用的串口接收缓冲
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u8 aRxBuffer2[RXBUFFERSIZE];//HAL库使用的串口接收缓冲
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u8 aRxBuffer3[RXBUFFERSIZE];//HAL库使用的串口接收缓冲
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//USART句柄
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UART_HandleTypeDef UART1_Handler;
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UART_HandleTypeDef UART2_Handler;
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UART_HandleTypeDef UART3_Handler;
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extern char rec_1;
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UART_BUF buf_uart2; //NBIOT
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UART_BUF buf_uart1; //TTL
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//串口发送
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void Uart2_SendStr(char*SendBuf)//串口6打印数据
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{
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while(*SendBuf)
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{
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while((USART2->SR&0X40)==0);//等待发送完成
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USART2->DR = (u8) *SendBuf;
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SendBuf++;
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}
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}
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void Uart1_SendStr(char*SendBuf)//串口1打印数据
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{
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while(*SendBuf)
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{
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while((USART1->SR&0X40)==0);//等待发送完成
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USART1->DR = (u8) *SendBuf;
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SendBuf++;
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}
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}
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void UART1_receive_process_event(char ch )
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{
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if(buf_uart1.index >= BUFLEN)
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{
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buf_uart1.index = 0 ;
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}
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else
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{
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buf_uart1.buf[buf_uart1.index++] = ch;
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}
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}
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void ec200x_receive_process_event(unsigned char ch )
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{
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if(buf_uart2.index >= BUFLEN)
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{
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buf_uart2.index = 0 ;
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}
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else
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{
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buf_uart2.buf[buf_uart2.index++] = ch;
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}
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}
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//初始化
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void usart_init1(u32 bound)
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{
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//UART 初始化设置
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UART1_Handler.Instance=USART1; //USART1
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UART1_Handler.Init.BaudRate=bound; //波特率
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UART1_Handler.Init.WordLength=UART_WORDLENGTH_8B; //字长为8位数据格式
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UART1_Handler.Init.StopBits=UART_STOPBITS_1; //一个停止位
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UART1_Handler.Init.Parity=UART_PARITY_NONE; //无奇偶校验位
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UART1_Handler.Init.HwFlowCtl=UART_HWCONTROL_NONE; //无硬件流控
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UART1_Handler.Init.Mode=UART_MODE_TX_RX; //收发模式
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HAL_UART_Init(&UART1_Handler); //HAL_UART_Init()会使能UART1
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//HAL_UART_Receive_IT(&UART1_Handler, (u8 *)aRxBuffer, RXBUFFERSIZE);//该函数会开启接收中断：标志位UART_IT_RXNE，并且设置接收缓冲以及接收缓冲接收最大数据量(使用回调函数处理中断需要调用该函数）
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}
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void usart_init2(u32 bound)
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{
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UART2_Handler.Instance=USART2; //USART1
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UART2_Handler.Init.BaudRate=bound; //波特率
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UART2_Handler.Init.WordLength=UART_WORDLENGTH_8B; //字长为8位数据格式
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UART2_Handler.Init.StopBits=UART_STOPBITS_1; //一个停止位
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UART2_Handler.Init.Parity=UART_PARITY_NONE; //无奇偶校验位
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UART2_Handler.Init.HwFlowCtl=UART_HWCONTROL_NONE; //无硬件流控
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UART2_Handler.Init.Mode=UART_MODE_TX_RX; //收发模式
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HAL_UART_Init(&UART2_Handler); //HAL_UART_Init()会使能UART1
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HAL_UART_Receive_IT(&UART2_Handler, (u8 *)aRxBuffer2, RXBUFFERSIZE);//该函数会开启接收中断：标志位UART_IT_RXNE，并且设置接收缓冲以及接收缓冲接收最大数据量
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}
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void usart_init3(u32 bound)
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{
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UART3_Handler.Instance=USART3; //UART3
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UART3_Handler.Init.BaudRate=bound; //波特率
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UART3_Handler.Init.WordLength=UART_WORDLENGTH_8B; //字长为8位数据格式
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UART3_Handler.Init.StopBits=UART_STOPBITS_1; //一个停止位
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UART3_Handler.Init.Parity=UART_PARITY_NONE; //无奇偶校验位
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UART3_Handler.Init.Mode=UART_MODE_TX_RX; //收发模式
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HAL_UART_Init(&UART3_Handler); //HAL_UART_Init()会使能UART3
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HAL_UART_Receive_IT(&UART3_Handler, (u8 *)aRxBuffer3, RXBUFFERSIZE);//该函数会开启接收中断：标志位UART_IT_RXNE，并且设置接收缓冲以及接收缓冲接收最大数据量
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}
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//GPIO端口设置
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void HAL_UART_MspInit(UART_HandleTypeDef *huart)
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{
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GPIO_InitTypeDef GPIO_Initure;
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if(huart->Instance==USART1)//如果是串口1，进行串口1 MSP初始化
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{
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__HAL_RCC_GPIOA_CLK_ENABLE(); //使能GPIOA时钟
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__HAL_RCC_USART1_CLK_ENABLE(); //使能USART1时钟
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GPIO_Initure.Pin=GPIO_PIN_9; //PA9
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GPIO_Initure.Mode=GPIO_MODE_AF_PP; //复用推挽输出
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GPIO_Initure.Pull=GPIO_PULLUP; //上拉
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GPIO_Initure.Speed=GPIO_SPEED_FAST; //高速
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GPIO_Initure.Alternate=GPIO_AF7_USART1; //复用为USART1
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HAL_GPIO_Init(GPIOA,&GPIO_Initure); //初始化PA9
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GPIO_Initure.Pin=GPIO_PIN_10; //PA10
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HAL_GPIO_Init(GPIOA,&GPIO_Initure); //初始化PA10
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__HAL_UART_DISABLE_IT(huart,UART_IT_TC);
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#if EN_USART1_RX
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__HAL_UART_ENABLE_IT(huart,UART_IT_RXNE); //开启接收中断
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HAL_NVIC_EnableIRQ(USART1_IRQn); //使能USART1中断通道
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HAL_NVIC_SetPriority(USART1_IRQn,3,3); //抢占优先级3，子优先级3
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#endif
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}
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if(huart->Instance==USART2)//如果是串口1，进行串口2 MSP初始化
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{
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__HAL_RCC_GPIOA_CLK_ENABLE(); //使能GPIOA时钟
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__HAL_RCC_USART2_CLK_ENABLE(); //使能USART1时钟
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GPIO_Initure.Pin=GPIO_PIN_2; //PA2
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GPIO_Initure.Mode=GPIO_MODE_AF_PP; //复用推挽输出
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GPIO_Initure.Pull=GPIO_PULLUP; //上拉
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GPIO_Initure.Speed=GPIO_SPEED_FREQ_HIGH; //高速
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GPIO_Initure.Alternate=GPIO_AF7_USART2; //复用为USART2
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HAL_GPIO_Init(GPIOA,&GPIO_Initure); //初始化PA2
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GPIO_Initure.Pin=GPIO_PIN_3; //PA3
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HAL_GPIO_Init(GPIOA,&GPIO_Initure); //初始化PA3
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#if 1
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HAL_NVIC_EnableIRQ(USART2_IRQn); //使能USART1中断通道
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HAL_NVIC_SetPriority(USART2_IRQn,1,1); //抢占优先级3，子优先级3
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#endif
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}
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if(huart->Instance==USART3)//如果是串口3，进行串口3 MSP初始化
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{
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__HAL_RCC_GPIOB_CLK_ENABLE(); //使能GPIOB时钟
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__HAL_RCC_USART3_CLK_ENABLE(); //使能USART3时钟
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GPIO_Initure.Pin=GPIO_PIN_10; //PB10
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GPIO_Initure.Mode = GPIO_MODE_AF_PP; // 复用推挽
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GPIO_Initure.Pull = GPIO_PULLUP; // 不上拉不下拉
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GPIO_Initure.Speed=GPIO_SPEED_FREQ_MEDIUM; //50mhz
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GPIO_Initure.Alternate=GPIO_AF7_USART3; //复用为USART3
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HAL_GPIO_Init(GPIOB,&GPIO_Initure); //初始化PB10
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GPIO_Initure.Pin=GPIO_PIN_11; //PB11
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HAL_GPIO_Init(GPIOB,&GPIO_Initure); //初始化PB11
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#if 1
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HAL_NVIC_EnableIRQ(USART3_IRQn); //使能USART3中断通道
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HAL_NVIC_SetPriority(USART3_IRQn,2,1); //抢占优先级2，子优先级3
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#endif
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}
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//以下为usart3.c内容
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USART3_RX_STA=0; //清零
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}
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//回调函数
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void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
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{
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//int _time1,_time2,_time3;
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if(huart->Instance==USART2)//如果是串口2
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{
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#define USARTy_RX_STA USART2_RX_STA
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#define aRxBuffery aRxBuffer2
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#define USARTy_RX_BUF USART2_RX_BUF
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USARTy_RX_BUF[USARTy_RX_STA&0X3FFF]=aRxBuffery[0];
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USARTy_RX_STA++;
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if(USARTy_RX_STA >= (USART_REC_LEN-1))USARTy_RX_STA=0;//接收数据错误,重新开始接收
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}
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if(huart->Instance==USART3)//如果是串口3
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{
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USART3_RX_BUF[USART3_RX_STA&0X3FFF]=aRxBuffer3[0]; //0011 1111 1111 1111
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USART3_RX_STA++;
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if(USART3_RX_STA >= (USART_REC_LEN-1))USART3_RX_STA=0;//接收数据错误,重新开始接收
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if(strstr((char*)USART3_RX_BUF, "$GPTXT")){USART3_RX_STA|=0x8000;}
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}
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}
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//串口1中断服务程序
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void USART1_IRQHandler(void)
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{
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u8 Res;
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#if SYSTEM_SUPPORT_OS //使用OS
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OSIntEnter();
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#endif
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if((__HAL_UART_GET_FLAG(&UART1_Handler,UART_FLAG_RXNE)!=RESET)) //接收中断(接收到的数据必须是0x0d 0x0a结尾)
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{
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HAL_UART_Receive(&UART1_Handler,&Res,1,1000);
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if((USART_RX_STA&0x8000)==0)//接收未完成
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{
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if(USART_RX_STA&0x4000)//接收到了0x0d
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{
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if(Res!=0x0a)USART_RX_STA=0;//接收错误,重新开始
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else USART_RX_STA|=0x8000; //接收完成了
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}
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else //还没收到0X0D
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{
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if(Res==0x0d)USART_RX_STA|=0x4000;
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else
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{
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USART_RX_BUF[USART_RX_STA&0X3FFF]=Res ;
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USART_RX_STA++;
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if(USART_RX_STA>(USART_REC_LEN-1))USART_RX_STA=0;//接收数据错误,重新开始接收
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}
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}
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}
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}
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HAL_UART_IRQHandler(&UART1_Handler);
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#if SYSTEM_SUPPORT_OS //使用OS
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OSIntExit();
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#endif
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}
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void USART2_IRQHandler(void)
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{
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u32 timeout=0;
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u32 maxDelay=0x1FFFF;
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#if SYSTEM_SUPPORT_OS //使用OS
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OSIntEnter();
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#endif
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HAL_UART_IRQHandler(&UART2_Handler); //调用HAL库中断处理公用函数
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timeout=0;
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while (HAL_UART_GetState(&UART2_Handler) != HAL_UART_STATE_READY)//等待就绪
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{
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timeout++;////超时处理
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if(timeout>maxDelay) break;
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}
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timeout=0;
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while(HAL_UART_Receive_IT(&UART2_Handler, (u8 *)aRxBuffer2, RXBUFFERSIZE) != HAL_OK)//一次处理完成之后，重新开启中断并设置RxXferCount为1
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{
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timeout++; //超时处理
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if(timeout>maxDelay) break;
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}
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#if SYSTEM_SUPPORT_OS //使用OS
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OSIntExit();
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#endif
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}
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void USART3_IRQHandler(void)
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{
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u32 timeout=0;
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#if SYSTEM_SUPPORT_OS //使用OS
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OSIntEnter();
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#endif
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HAL_UART_IRQHandler(&UART3_Handler); //调用HAL库中断处理公用函数
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timeout=0;
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u32 maxDelay=0x1FFFF;
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while (HAL_UART_GetState(&UART3_Handler) != HAL_UART_STATE_READY)//等待就绪
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{
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timeout++;////超时处理
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if(timeout>maxDelay) {break;}
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}
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timeout=0;
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while(HAL_UART_Receive_IT(&UART3_Handler, (u8 *)aRxBuffer3, RXBUFFERSIZE) != HAL_OK)//一次处理完成之后，重新开启中断并设置RxXferCount为1
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{
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timeout++; //超时处理
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if(timeout>maxDelay) {break;}
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}
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#if SYSTEM_SUPPORT_OS //使用OS
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OSIntExit();
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#endif
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}
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#endif
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