733 lines
20 KiB
C
733 lines
20 KiB
C
/*
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* uart.c
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*
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* Created on: May 14, 2025
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* Author: cc
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*
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* 目前有两个 RS485口
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*
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* Uart1 -> 调试串口
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* Uart0 -> U1 -> RS485 1
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* UART2 -> U2 -> RS485 2
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* Uart3 -> U3 -> BUS
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*
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*/
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#include "includes.h"
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#include <string.h>
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UART_t g_uart[UART_MAX];
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void UART0_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
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void UART1_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
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void UART2_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
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void UART3_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
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/*********************************************************************
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* @fn UARTx_Init
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* @brief UART初始化函数，注意串口2通讯引脚是PB22,PB23 - Boot,RST引脚
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* @param uart_id - 串口ID
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* @param buad - 波特率
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* @param prt_cf - 串口接收回调函数
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* @return none
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*/
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void UARTx_Init(UART_IDX uart_id, uint32_t buad) {
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switch (uart_id) {
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case UART_0:
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//RS485通讯引脚
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GPIOD_ModeCfg(GPIO_Pin_21, GPIO_ModeOut_PP);
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MCU485_EN1_L;
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UART0_Reset();
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GPIO_PinRemapConfig(GPIO_NoRemap_UART0,ENABLE);
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GPIOB_ModeCfg(GPIO_Pin_9, GPIO_ModeOut_PP);
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GPIOB_ModeCfg(GPIO_Pin_8, GPIO_ModeIN_Floating);
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UART0_BaudRateCfg(buad);
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R8_UART0_FCR = RB_FCR_FIFO_TRIG | RB_FCR_TX_FIFO_CLR | RB_FCR_RX_FIFO_CLR | RB_FCR_FIFO_EN;
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// FIFO open, trigger point 14 bytes
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R8_UART0_LCR = RB_LCR_WORD_SZ;
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R8_UART0_IER = RB_IER_TXD_EN;
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UART0_CLR_RXFIFO();
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UART0_CLR_TXFIFO();
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UART0_INTCfg(ENABLE, RB_IER_RECV_RDY | RB_IER_THR_EMPTY);
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NVIC_EnableIRQ(UART0_IRQn);
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memset(&g_uart[UART_0],0,sizeof(UART_t));
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Set_Uart_recvTimeout(&g_uart[UART_0],buad);
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g_uart[UART_0].send_data_cf = UART0_SendString;
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g_uart[UART_0].set_baud_cf = UART0_ChangeBaud;
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break;
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case UART_1:
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UART1_Reset();
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GPIO_PinRemapConfig(GPIO_NoRemap_UART1,ENABLE);
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GPIOB_ModeCfg(GPIO_Pin_11, GPIO_ModeOut_PP);
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GPIOB_ModeCfg(GPIO_Pin_10, GPIO_ModeIN_Floating);
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UART1_BaudRateCfg(buad);
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R8_UART1_FCR = RB_FCR_FIFO_TRIG | RB_FCR_TX_FIFO_CLR | RB_FCR_RX_FIFO_CLR | RB_FCR_FIFO_EN;
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// FIFO open, trigger point 14 bytes
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R8_UART1_LCR = RB_LCR_WORD_SZ;
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R8_UART1_IER = RB_IER_TXD_EN;
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UART1_INTCfg(ENABLE, RB_IER_RECV_RDY | RB_IER_THR_EMPTY);
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NVIC_EnableIRQ(UART1_IRQn);
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memset(&g_uart[UART_1],0,sizeof(UART_t));
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Set_Uart_recvTimeout(&g_uart[UART_1],buad);
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g_uart[UART_1].send_data_cf = UART1_SendString;
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g_uart[UART_1].set_baud_cf = UART1_ChangeBaud;
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break;
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case UART_2:
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//RS485通讯引脚
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GPIOB_ModeCfg(GPIO_Pin_15, GPIO_ModeOut_PP);
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MCU485_EN2_L;
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UART2_Reset();
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GPIO_PinRemapConfig(GPIO_PartialRemap1_UART2,ENABLE);
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GPIOB_ModeCfg(GPIO_Pin_14, GPIO_ModeOut_PP);
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GPIOB_ModeCfg(GPIO_Pin_12, GPIO_ModeIN_Floating);
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UART2_BaudRateCfg(buad);
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R8_UART2_FCR = RB_FCR_FIFO_TRIG | RB_FCR_TX_FIFO_CLR | RB_FCR_RX_FIFO_CLR | RB_FCR_FIFO_EN;
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// FIFO open, trigger point 14 bytes
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R8_UART2_LCR = RB_LCR_WORD_SZ;
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R8_UART2_IER = RB_IER_TXD_EN;
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UART2_INTCfg(ENABLE, RB_IER_RECV_RDY | RB_IER_THR_EMPTY);
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NVIC_EnableIRQ(UART2_IRQn);
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memset(&g_uart[UART_2],0,sizeof(UART_t));
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Set_Uart_recvTimeout(&g_uart[UART_2],buad);
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g_uart[UART_2].send_data_cf = UART2_SendString;
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g_uart[UART_2].set_baud_cf = UART2_ChangeBaud;
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break;
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case UART_3:
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UART3_Reset();
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GPIO_PinRemapConfig(GPIO_PartialRemap1_UART3,ENABLE);
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GPIOB_ModeCfg(GPIO_Pin_19, GPIO_ModeOut_PP);
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GPIOB_ModeCfg(GPIO_Pin_18, GPIO_ModeIN_Floating);
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UART3_BaudRateCfg(buad);
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R8_UART3_FCR = RB_FCR_FIFO_TRIG | RB_FCR_TX_FIFO_CLR | RB_FCR_RX_FIFO_CLR | RB_FCR_FIFO_EN;
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// FIFO open, trigger point 14 bytes
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R8_UART3_LCR = RB_LCR_WORD_SZ;
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R8_UART3_IER = RB_IER_TXD_EN;
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UART3_INTCfg(ENABLE, RB_IER_RECV_RDY | RB_IER_THR_EMPTY);
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NVIC_EnableIRQ(UART3_IRQn);
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memset(&g_uart[UART_3],0,sizeof(UART_t));
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Set_Uart_recvTimeout(&g_uart[UART_3],buad);
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g_uart[UART_3].send_data_cf = UART3_SendString;
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g_uart[UART_3].set_baud_cf = UART3_ChangeBaud;
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break;
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}
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}
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void Set_Uart_recvTimeout(UART_t *set_uart,uint32_t baud)
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{
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if(baud == 115200)
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{
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set_uart->RecvTimeout = Recv_115200_TimeOut;
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}else if(baud == 9600)
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{
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set_uart->RecvTimeout = Recv_9600_TimeOut;
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}else if(baud == 2400)
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{
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set_uart->RecvTimeout = Recv_2400_TimeOut;
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}else if(baud == 512000)
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{
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set_uart->RecvTimeout = Recv_512000_TimeOut;
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}else
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{
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set_uart->RecvTimeout = 20;
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}
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}
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/*********************************************************************
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* @fn USART1_IRQHandler
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*
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* @brief USART1中断函数
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*
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* @return none
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*/
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void UART0_IRQHandler(void)
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{
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switch( UART0_GetITFlag() )
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{
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case UART_II_THR_EMPTY:
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break;
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case UART_II_RECV_RDY:
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case UART_II_RECV_TOUT:
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if( (g_uart[UART_0].RecvLen + 1) >= USART_BUFFER_SIZE ) g_uart[UART_0].RecvLen = 0x00;
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g_uart[UART_0].RecvBuffer[g_uart[UART_0].RecvLen] = UART0_RecvByte();
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g_uart[UART_0].RecvLen += 1;
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g_uart[UART_0].Receiving = 0x01;
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g_uart[UART_0].RecvIdleTiming = SysTick_1ms;
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//当前处于繁忙状态
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g_uart[UART_0].CommBusy |= UART_COMMBUSY_RECV_Flag;
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break;
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}
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}
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/*********************************************************************
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* @fn USART1_IRQHandler
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*
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* @brief USART1中断函数
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*
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* @return none
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*/
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void UART1_IRQHandler(void)
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{
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switch( UART1_GetITFlag() )
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{
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case UART_II_THR_EMPTY:
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break;
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case UART_II_RECV_RDY:
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case UART_II_RECV_TOUT:
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if( (g_uart[UART_1].RecvLen + 1) >= USART_BUFFER_SIZE ) g_uart[UART_1].RecvLen = 0x00;
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g_uart[UART_1].RecvBuffer[g_uart[UART_1].RecvLen] = UART1_RecvByte();
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g_uart[UART_1].RecvLen += 1;
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g_uart[UART_1].Receiving = 0x01;
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g_uart[UART_1].RecvIdleTiming = SysTick_1ms;
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break;
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}
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}
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/*********************************************************************
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* @fn UART2_IRQHandler
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*
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* @brief USART2中断函数
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*
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* @return none
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*/
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void UART2_IRQHandler(void)
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{
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switch( UART2_GetITFlag() )
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{
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case UART_II_THR_EMPTY:
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break;
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case UART_II_RECV_RDY:
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case UART_II_RECV_TOUT:
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if( (g_uart[UART_2].RecvLen + 1) >= USART_BUFFER_SIZE ) g_uart[UART_2].RecvLen = 0x00;
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g_uart[UART_2].RecvBuffer[g_uart[UART_2].RecvLen] = UART2_RecvByte();
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g_uart[UART_2].RecvLen += 1;
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g_uart[UART_2].Receiving = 0x01;
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g_uart[UART_2].RecvIdleTiming = SysTick_1ms;
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break;
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}
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}
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/*********************************************************************
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* @fn USART3_IRQHandler
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*
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* @brief USART3中断函数
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*
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* @return none
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*/
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void UART3_IRQHandler(void)
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{
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switch( UART3_GetITFlag() )
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{
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case UART_II_THR_EMPTY:
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break;
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case UART_II_RECV_RDY:
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case UART_II_RECV_TOUT:
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if( (g_uart[UART_3].RecvLen + 1) >= USART_BUFFER_SIZE ) g_uart[UART_3].RecvLen = 0x00;
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g_uart[UART_3].RecvBuffer[g_uart[UART_3].RecvLen] = UART3_RecvByte();
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g_uart[UART_3].RecvLen += 1;
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g_uart[UART_3].Receiving = 0x01;
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g_uart[UART_3].RecvIdleTiming = SysTick_1ms;
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break;
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}
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}
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/*********************************************************************
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* @fn USART1_RECEIVE
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*
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* @brief USART1
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*
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* @return none
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*/
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void UART0_RECEIVE(void)
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{
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if(g_uart[UART_0].Receiving == 0x01)
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{
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if(SysTick_1ms - g_uart[UART_0].RecvIdleTiming >= g_uart[UART_0].RecvTimeout)
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{
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g_uart[UART_0].RecvIdleTiming = SysTick_1ms;
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DBG_SYS_Printf("--UART0_RECEIVE--\r\n");
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Launcher_Uart_Upgrade_Process(&g_uart[UART_0]);
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g_uart[UART_0].RecvLen = 0;
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g_uart[UART_0].Receiving = 0;
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}
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}
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}
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/*********************************************************************
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* @fn USART1_RECEIVE
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*
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* @brief USART1
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*
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* @return none
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*/
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void UART1_RECEIVE(void)
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{
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if(g_uart[UART_1].Receiving == 0x01)
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{
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if(SysTick_1ms - g_uart[UART_1].RecvIdleTiming >= g_uart[UART_1].RecvTimeout)
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{
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g_uart[UART_1].RecvIdleTiming = SysTick_1ms;
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DBG_SYS_Printf("--UART1_RECEIVE--\r\n");
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Launcher_Uart_Upgrade_Process(&g_uart[UART_1]);
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g_uart[UART_1].RecvLen = 0;
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g_uart[UART_1].Receiving = 0;
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}
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}
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}
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/*********************************************************************
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* @fn UART2_RECEIVE
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*
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* @brief USART2
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*
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* @return none
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*/
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void UART2_RECEIVE(void)
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{
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if(g_uart[UART_2].Receiving == 1)
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{
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if(SysTick_1ms - g_uart[UART_2].RecvIdleTiming > g_uart[UART_2].RecvTimeout)
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{
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g_uart[UART_2].RecvIdleTiming = SysTick_1ms;
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DBG_SYS_Printf("--UART2_RECEIVE--\r\n");
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Launcher_Uart_Upgrade_Process(&g_uart[UART_2]);
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g_uart[UART_2].RecvLen = 0;
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g_uart[UART_2].Receiving = 0;
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}
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}
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}
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/*********************************************************************
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* @fn USART3_RECEIVE
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*
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* @brief UART3
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*
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* @return none
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*/
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void UART3_RECEIVE(void)
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{
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if(g_uart[UART_3].Receiving == 1)
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{
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if(SysTick_1ms - g_uart[UART_3].RecvIdleTiming > g_uart[UART_3].RecvTimeout)
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{
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g_uart[UART_3].RecvIdleTiming = SysTick_1ms;
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DBG_SYS_Printf("--UART3_RECEIVE--\r\n");
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Launcher_Uart_Upgrade_Process(&g_uart[UART_3]);
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g_uart[UART_3].RecvLen = 0;
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g_uart[UART_3].Receiving = 0;
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}
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}
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}
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/*********************************************************************
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* @fn UART0_ChangeBaud
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*
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* @brief UART0切换波特率
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*
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* @return none
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*/
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uint8_t UART0_ChangeBaud(uint32_t baudrate)
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{
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uint16_t delay_num = 0;
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while(1)
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{
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if( UART0_GetLinSTA() & RB_LSR_TX_ALL_EMP )
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{
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/*发送为空*/
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__disable_irq();
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UART0_Reset();
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GPIO_PinRemapConfig(GPIO_NoRemap_UART0,ENABLE);
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GPIOB_ModeCfg(GPIO_Pin_9, GPIO_ModeOut_PP);
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GPIOB_ModeCfg(GPIO_Pin_8, GPIO_ModeIN_Floating);
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UART0_BaudRateCfg(baudrate);
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R8_UART0_FCR = RB_FCR_FIFO_TRIG | RB_FCR_TX_FIFO_CLR | RB_FCR_RX_FIFO_CLR | RB_FCR_FIFO_EN;
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// FIFO open, trigger point 14 bytes
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R8_UART0_LCR = RB_LCR_WORD_SZ;
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R8_UART0_IER = RB_IER_TXD_EN;
|
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UART0_CLR_RXFIFO();
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UART0_CLR_TXFIFO();
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UART0_INTCfg(ENABLE, RB_IER_RECV_RDY | RB_IER_THR_EMPTY);
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NVIC_EnableIRQ(UART0_IRQn);
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Set_Uart_recvTimeout(&g_uart[UART_0],baudrate);
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__enable_irq();
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return 0;
|
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}
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|
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Delay_Us(100);
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delay_num++;
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if(delay_num > 500) break;
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}
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|
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return 1;
|
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}
|
||
|
||
/*********************************************************************
|
||
* @fn UART1_ChangeBaud
|
||
*
|
||
* @brief UART1切换波特率
|
||
*
|
||
* @return none
|
||
*/
|
||
uint8_t UART1_ChangeBaud(uint32_t baudrate)
|
||
{
|
||
uint16_t delay_num = 0;
|
||
|
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while(1)
|
||
{
|
||
if( UART0_GetLinSTA() & RB_LSR_TX_ALL_EMP )
|
||
{
|
||
/*发送为空*/
|
||
__disable_irq();
|
||
|
||
UART1_Reset();
|
||
|
||
GPIO_PinRemapConfig(GPIO_NoRemap_UART1,ENABLE);
|
||
GPIOB_ModeCfg(GPIO_Pin_11, GPIO_ModeOut_PP);
|
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GPIOB_ModeCfg(GPIO_Pin_10, GPIO_ModeIN_Floating);
|
||
|
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UART1_BaudRateCfg(baudrate);
|
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R8_UART1_FCR = RB_FCR_FIFO_TRIG | RB_FCR_TX_FIFO_CLR | RB_FCR_RX_FIFO_CLR | RB_FCR_FIFO_EN;
|
||
// FIFO open, trigger point 14 bytes
|
||
R8_UART1_LCR = RB_LCR_WORD_SZ;
|
||
R8_UART1_IER = RB_IER_TXD_EN;
|
||
|
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UART1_INTCfg(ENABLE, RB_IER_RECV_RDY | RB_IER_THR_EMPTY);
|
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NVIC_EnableIRQ(UART1_IRQn);
|
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|
||
Set_Uart_recvTimeout(&g_uart[UART_1],baudrate);
|
||
|
||
__enable_irq();
|
||
|
||
return 0;
|
||
}
|
||
|
||
Delay_Us(100);
|
||
delay_num++;
|
||
if(delay_num > 500) break;
|
||
}
|
||
|
||
return 1;
|
||
}
|
||
|
||
/*********************************************************************
|
||
* @fn UART2_ChangeBaud
|
||
*
|
||
* @brief UART2切换波特率
|
||
*
|
||
* @return none
|
||
*/
|
||
uint8_t UART2_ChangeBaud(uint32_t baudrate)
|
||
{
|
||
uint16_t delay_num = 0;
|
||
|
||
while(1)
|
||
{
|
||
if( UART0_GetLinSTA() & RB_LSR_TX_ALL_EMP )
|
||
{
|
||
/*发送为空*/
|
||
__disable_irq();
|
||
|
||
UART2_Reset();
|
||
|
||
GPIO_PinRemapConfig(GPIO_PartialRemap1_UART2,ENABLE);
|
||
GPIOB_ModeCfg(GPIO_Pin_14, GPIO_ModeOut_PP);
|
||
GPIOB_ModeCfg(GPIO_Pin_12, GPIO_ModeIN_Floating);
|
||
|
||
UART2_BaudRateCfg(baudrate);
|
||
R8_UART2_FCR = RB_FCR_FIFO_TRIG | RB_FCR_TX_FIFO_CLR | RB_FCR_RX_FIFO_CLR | RB_FCR_FIFO_EN;
|
||
// FIFO open, trigger point 14 bytes
|
||
R8_UART2_LCR = RB_LCR_WORD_SZ;
|
||
R8_UART2_IER = RB_IER_TXD_EN;
|
||
|
||
UART2_INTCfg(ENABLE, RB_IER_RECV_RDY | RB_IER_THR_EMPTY);
|
||
NVIC_EnableIRQ(UART2_IRQn);
|
||
|
||
Set_Uart_recvTimeout(&g_uart[UART_2],baudrate);
|
||
|
||
__enable_irq();
|
||
|
||
return 0;
|
||
}
|
||
|
||
Delay_Us(100);
|
||
delay_num++;
|
||
if(delay_num > 500) break;
|
||
}
|
||
|
||
return 1;
|
||
}
|
||
|
||
/*********************************************************************
|
||
* @fn UART3_ChangeBaud
|
||
*
|
||
* @brief UART3切换波特率
|
||
*
|
||
* @return none
|
||
*/
|
||
uint8_t UART3_ChangeBaud(uint32_t baudrate)
|
||
{
|
||
uint16_t delay_num = 0;
|
||
|
||
while(1)
|
||
{
|
||
if( UART0_GetLinSTA() & RB_LSR_TX_ALL_EMP )
|
||
{
|
||
/*发送为空*/
|
||
__disable_irq();
|
||
|
||
UART3_Reset();
|
||
|
||
GPIO_PinRemapConfig(GPIO_PartialRemap1_UART3,ENABLE);
|
||
GPIOB_ModeCfg(GPIO_Pin_19, GPIO_ModeOut_PP);
|
||
GPIOB_ModeCfg(GPIO_Pin_18, GPIO_ModeIN_Floating);
|
||
|
||
UART3_BaudRateCfg(baudrate);
|
||
R8_UART3_FCR = RB_FCR_FIFO_TRIG | RB_FCR_TX_FIFO_CLR | RB_FCR_RX_FIFO_CLR | RB_FCR_FIFO_EN;
|
||
// FIFO open, trigger point 14 bytes
|
||
R8_UART3_LCR = RB_LCR_WORD_SZ;
|
||
R8_UART3_IER = RB_IER_TXD_EN;
|
||
|
||
UART3_INTCfg(ENABLE, RB_IER_RECV_RDY | RB_IER_THR_EMPTY);
|
||
NVIC_EnableIRQ(UART3_IRQn);
|
||
|
||
Set_Uart_recvTimeout(&g_uart[UART_3],baudrate);
|
||
|
||
__enable_irq();
|
||
|
||
return 0;
|
||
}
|
||
|
||
Delay_Us(100);
|
||
delay_num++;
|
||
if(delay_num > 500) break;
|
||
}
|
||
|
||
return 1;
|
||
}
|
||
|
||
/*
|
||
* RS485通讯避障检测
|
||
* 1、主动发送数据后，等待总线空闲(根据不同的波特率，等待时间不同),等待超时后，总线空闲
|
||
* 2、接收到数据后，等待数据接收完毕，总线为空闲状态
|
||
* 3、总线空闲可进行数据发送，总线繁忙，不可发送数据
|
||
* 4、数据发送需要在数据有效期内发送，每次数据需要发送前，需要记录当前时间，当超过数据有效期后，该数据便不在发送
|
||
* 5、在通讯发送完成后，切换通讯波特率
|
||
*
|
||
* - 新增变量
|
||
* - 1、繁忙状态
|
||
* - 2、等待空闲时间戳
|
||
* - 3、发送数据有效时间
|
||
*
|
||
* */
|
||
|
||
uint8_t MCU485_SendString_1(uint8_t *buff, uint16_t len)
|
||
{
|
||
uint32_t delay_num = 0;
|
||
MCU485_EN1_H;
|
||
|
||
UART0_SendString(buff,len);
|
||
|
||
//等待发送完成 - 50ms
|
||
while(1)
|
||
{
|
||
if((R8_UART0_LSR & RB_LSR_TX_ALL_EMP)) break;
|
||
Delay_Us(1);
|
||
delay_num++;
|
||
if(delay_num > 50000) break;
|
||
}
|
||
|
||
MCU485_EN1_L;
|
||
return 0x00;
|
||
}
|
||
|
||
uint8_t MCU485_SendString_2(uint8_t *buff, uint16_t len)
|
||
{
|
||
uint32_t delay_num = 0;
|
||
MCU485_EN2_H;
|
||
|
||
UART2_SendString(buff,len);
|
||
|
||
//等待发送完成 - 50ms
|
||
while(1)
|
||
{
|
||
if((R8_UART2_LSR & RB_LSR_TX_ALL_EMP)) break;
|
||
Delay_Us(1);
|
||
delay_num++;
|
||
if(delay_num > 50000) break;
|
||
}
|
||
|
||
MCU485_EN2_L;
|
||
return 0x00;
|
||
}
|
||
|
||
/*******************************************************************************
|
||
* Function Name : Uart0_Add_Data_To_SendBuff
|
||
* Description : Uart0 将数据填入发送缓冲区
|
||
* Input :
|
||
buff：发送数据
|
||
len：发送数据长度
|
||
sendCount ：发送次数
|
||
ValidDuration ：数据有效时间，单位：ms
|
||
sendInterval ：发送间隔时间，单位：ms
|
||
*******************************************************************************/
|
||
uint8_t Uart0_Add_Data_To_SendBuff(uint8_t *buff,uint16_t len,uint8_t sendCount,uint32_t ValidDuration,uint32_t sendInterval)
|
||
{
|
||
if( buff == NULL) return 0x01;
|
||
if( len > USART_BUFFER_SIZE ) return 0x02;
|
||
|
||
memset(g_uart[UART_0].SendBuffer,0,USART_BUFFER_SIZE);
|
||
memcpy(g_uart[UART_0].SendBuffer,buff,len);
|
||
g_uart[UART_0].SendLen = len;
|
||
g_uart[UART_0].SendCount = sendCount;
|
||
g_uart[UART_0].SendCnt = 0;
|
||
g_uart[UART_0].SendValidDuration = ValidDuration;
|
||
g_uart[UART_0].SendInterval = sendInterval;
|
||
g_uart[UART_0].SendValidTick = SysTick_1ms;
|
||
|
||
return 0x00;
|
||
}
|
||
|
||
/*******************************************************************************
|
||
* Function Name : Uart0_Clear_SendBuff
|
||
* Description : Uart0 清除发送缓冲区，同时取消发送
|
||
*******************************************************************************/
|
||
uint8_t Uart0_Clear_SendBuff(void)
|
||
{
|
||
memset(g_uart[UART_0].SendBuffer,0,USART_BUFFER_SIZE);
|
||
g_uart[UART_0].SendLen = 0x00;
|
||
|
||
return 0x00;
|
||
}
|
||
|
||
/*******************************************************************************
|
||
* Function Name : Uart0_Avoid_Conflict_Send_Task
|
||
* Description : Uart0 避免冲突 - 发送数据
|
||
*******************************************************************************/
|
||
uint8_t Uart0_Avoid_Conflict_Send_Task(void)
|
||
{
|
||
if( (g_uart[UART_0].SendLen == 0x00) || (g_uart[UART_0].SendLen > USART_BUFFER_SIZE) ) return 0x01;
|
||
|
||
if( g_uart[UART_0].SendCnt >= g_uart[UART_0].SendCount ) {
|
||
//发送次数，达到上限，不进行数据发送
|
||
g_uart[UART_0].SendLen = 0x00;
|
||
return 0x02;
|
||
}
|
||
|
||
if( SysTick_1ms - g_uart[UART_0].SendValidTick >= g_uart[UART_0].SendInterval ){
|
||
//数据已过有效期，便不在进行数据发送
|
||
g_uart[UART_0].SendLen = 0x00;
|
||
return 0x03;
|
||
}
|
||
|
||
if( g_uart[UART_0].CommBusy != UART_COMMBUSY_IDLE_Flag ) return 0x04; //通讯处于繁忙状态
|
||
|
||
//数据发送
|
||
if( ( g_uart[UART_0].SendCnt == 0x00 ) || ( SysTick_1ms - g_uart[UART_0].SendTick >= g_uart[UART_0].SendInterval ) )
|
||
{
|
||
__disable_irq(); //关闭全局中断
|
||
g_uart[UART_0].CommBusy |= UART_COMMBUSY_SEND_Flag;
|
||
g_uart[UART_0].SendIdleTick = SysTick_1ms;
|
||
__enable_irq(); //开启全局中断
|
||
|
||
UART0_SendString(g_uart[UART_0].SendBuffer, g_uart[UART_0].SendLen);
|
||
g_uart[UART_0].SendTick = SysTick_1ms;
|
||
g_uart[UART_0].SendCnt++;
|
||
|
||
if( g_uart[UART_0].SendCnt >= g_uart[UART_0].SendCount )
|
||
{
|
||
memset(g_uart[UART_0].SendBuffer,0,USART_BUFFER_SIZE);
|
||
g_uart[UART_0].SendLen = 0x00;
|
||
|
||
return 0x05; //通讯结束
|
||
}
|
||
}
|
||
|
||
return 0x00;
|
||
}
|
||
|
||
void Uart0_Task(void)
|
||
{
|
||
UART0_RECEIVE();
|
||
|
||
Uart0_Avoid_Conflict_Send_Task();
|
||
|
||
if( g_uart[UART_0].CommBusy == UART_COMMBUSY_IDLE_Flag )
|
||
{
|
||
/*当前处于总线空闲状态 - 可以进行切换波特率操作*/
|
||
if( g_uart[UART_0].ChangeBaudFlag == 0x01 )
|
||
{
|
||
g_uart[UART_0].set_baud_cf(g_uart[UART_0].CommBaud);
|
||
g_uart[UART_0].ChangeBaudFlag = 0x00;
|
||
}
|
||
|
||
}else {
|
||
/*当前处于发送繁忙状态，等待总线空闲状态 - 判断使用超时时间与接收超时时间一致*/
|
||
if( ((g_uart[UART_0].CommBusy & UART_COMMBUSY_SEND_Flag) != 0x00 ) && ( SysTick_1ms - g_uart[UART_0].SendIdleTick >= g_uart[UART_0].RecvTimeout ) )
|
||
{
|
||
g_uart[UART_0].SendIdleTick = SysTick_1ms;
|
||
|
||
__disable_irq(); //关闭全局中断
|
||
g_uart[UART_0].CommBusy &= ~(UART_COMMBUSY_SEND_Flag);
|
||
g_uart[UART_0].SendIdleTick = SysTick_1ms;
|
||
__enable_irq(); //开启全局中断
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
|
||
|
||
|
||
|