185 lines
4.0 KiB
C
185 lines
4.0 KiB
C
/*
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******************************************************************************
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*
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* @file uart.c
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* @brief uart module
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*
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*
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* @version 1.0
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* @date 2022/12/14 15:00:40
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* @author Alex Xu
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*
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* Copyright (c) 2013-2099,Tkplusemi Technology Co.,Ltd.
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* All Rights Reserved
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*
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* History:
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* Revision Date Author Desc
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* 1.0.0 2022/12/14 Alex build this file
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******************************************************************************/
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/*_____ I N C L U D E S ____________________________________________________*/
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#include "uart.h"
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#include "system.h"
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#include "vox_module.h"
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#if UART0_ENABLE
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/******************************************************************************\
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Macro definitions
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\******************************************************************************/
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#define NONE_PARITY 0 //无校验
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#define ODD_PARITY 1 //奇校验
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#define EVEN_PARITY 2 //偶校验
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#define MARK_PARITY 3 //标记校验
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#define SPACE_PARITY 4 //空白校验
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#define PARITYBIT EVEN_PARITY //定义校验位
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#define Baud_Rate0 2400//115200//19200//38400//93750
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#define S0REL_VALUE (1024-375000/Baud_Rate0)
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/******************************************************************************\
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Variables definitions
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\******************************************************************************/
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bit busy0;
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#endif
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#ifdef _DEBUG_ALL
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char putchar(char c)
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{
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/*
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while(!TI0);
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TI0 = 0;
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return (S0BUF = c);
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*/
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Uart0SendData(c);
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return(c);
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}
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#endif
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#if UART0_ENABLE
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/*
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*******************************************************************************
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* void UART0_Init(void)
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*
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* Description : UART0 Initialization UART0用于debug、打印、透传功能
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*
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* Arguments : NONE
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* Returns : NONE
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* Notes : NONE
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*
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*******************************************************************************
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*/
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void UART0_Init(void)
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{
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SFRADDR = MFP_CTL0;
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SFRDATA &= ~0x0C;
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SFRDATA |= 0x04; //P01 as UART's TX
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BD = 1; //Select additional Baudrate generator
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PCON |= 0x80; //Baudrate double enable
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//baudrate set
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S0RELH = HIBYTE(S0REL_VALUE);
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S0RELL = LOBYTE(S0REL_VALUE);//s0rel=1023, baudrate = fclk/32 = 187.5k
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S0CON = 0xD0; //SCON: MODE 3, 9-bit UART, RI enable, EVEN Parity
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TI0 = 1;
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RI0 = 1;
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ES0 = 1; //Enable UART0 IRQ
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}
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/*
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*******************************************************************************
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* void Uart0SendData(uint8_t Txdata)
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*
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* Description : UART0 Send Data
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*
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* Arguments : NONE
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* Returns : NONE
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* Notes : NONE
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*
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*******************************************************************************
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*/
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void Uart0SendData(uint8_t Txdata)
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{
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while(busy0);
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ACC = Txdata;
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if (P) //根据P来设置校验位
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{
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#if (PARITYBIT == ODD_PARITY)
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TB80 = 0; //设置校验位为0
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#elif (PARITYBIT == EVEN_PARITY)
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TB80 = 1; //设置校验位为1
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#endif
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}
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else
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{
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#if (PARITYBIT == ODD_PARITY)
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TB80 = 1; //设置校验位为1
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#elif (PARITYBIT == EVEN_PARITY)
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TB80 = 0; //设置校验位为0
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#endif
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}
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busy0 = 1;
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S0BUF = ACC;
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}
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/*
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*******************************************************************************
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* void Uart0SendPacket(uint8_t Length,uint8_t *TransBuf)
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*
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* Description : UART0 Send Packet
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*
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* Arguments : NONE
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* Returns : NONE
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* Notes : NONE
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*
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*******************************************************************************
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*/
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void Uart0SendPacket(uint8_t Length,uint8_t *TransBuf)
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{
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uint8_t i = 0;
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for(i=0;i<Length;i++)
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{
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Uart0SendData(*TransBuf++);
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}
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}
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#endif
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#if UART0_ENABLE
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/*uart0中断处理函数*/
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void uart0_Interrupt(void) interrupt Interrupt_Vector_RI_TI
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{
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uint16_t CrcCheckSum = 0;
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/*处理UART0发送中断*/
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if(TI0)
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{
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TI0 = 0;
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busy0 = 0;
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}
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/*处理UART0接收中断，透传开关功能协议监听。*/
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if(RI0)
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{
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RI0 = 0;
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}
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}
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#endif
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