157 lines
3.1 KiB
C
157 lines
3.1 KiB
C
#include "H/Function_Init.H"
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void Uart_Init(uint Freq,unsigned long int baud);
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long Cclt_Power(uchar a, long b);
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bit UartSendFlag = 0; //发送中断标志位
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bit UartReceiveFlag = 0; //接收中断标志位
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//乘方a幂，b底
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long Cclt_Power(uchar a, long b)
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{
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uchar i;
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long temp;
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temp = 1;
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for(i=0;i<a;i++)
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temp = temp*b;
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return temp;
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}
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/*****************************************************
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*函数名称：void Uart_Test(void)
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*函数功能：Uart测试
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*入口参数：void
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*出口参数：void
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*****************************************************/
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void Uart_Test(void)
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{
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Uart_Init(32,9600);
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}
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/*****************************************************
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*函数名称：void Uart_Init(uint Freq,unsigned long int baud)
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*函数功能：Uart中断初始化
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*入口参数：Freq-主频，baud-波特率
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*出口参数：void
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*****************************************************/
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void Uart_Init(uint Freq,unsigned long int baud) //选择Timer1作为波特率信号发生器
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{
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P2CON &= 0xFC; //TX/RX设置为输入带上拉
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P2PH |= 0x03;
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SCON |= 0X50; //设置通信方式为模式一，允许接收
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TXCON |= 0X03; //UART0时钟来源为定时器1
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TH1 = (Freq*1000000/baud)>>8; //波特率为T1的溢出时间；
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TL1 = Freq*1000000/baud;
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TR1 = 0; //SC95F761xB系列UARTO使用定时器1作为时钟源，TR1为0
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ET1 = 0;
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EUART = 1; //开启Uart中断
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EA = 1;
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}
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/*
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void Uart_Init(uint Freq,unsigned long int baud) //选择Timer2作为波特率信号发生器
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{
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P2CON &= 0xFC; //TX/RX设置为输入带上拉
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P2PH |= 0x03;
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SCON |= 0X50; //设置通信方式为模式一，允许接收
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TXINX = 0x02;
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TMCON |= 0X04;
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TXMOD = 0X00;
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TXCON = 0X30;
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RCAPXH = Freq*1000000/baud/256;
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RCAPXL = Freq*1000000/baud%256;
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TRX = 0;
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ET2 = 0;
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EUART = 1; //开启Uart中断
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EA = 1;
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}
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*/
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/*****************************************************
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*函数名称：void UartInt(void) interrupt 4
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*函数功能：Uart中断函数
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*入口参数：void
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*出口参数：void
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*****************************************************/
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void UartInt(void) interrupt 4
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{
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if(TI) //UART0发送中断
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{
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TI = 0;
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UartSendFlag = 1;
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}
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if(RI) //UART0接收中断
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{
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RI = 0;
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UartReceiveFlag = 1;
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}
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}
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void UART_SendByte(uchar Byte)//字节发送
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{
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SBUF = Byte;
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while(!UartSendFlag);
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UartSendFlag = 0;
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}
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void UART_SendLong(long Dat)//32位从高到低发送
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{
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uchar i;
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uchar temp[4];
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temp[0] = (Dat >> 24) & 0xFF;
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temp[1] = (Dat >> 16) & 0xFF;
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temp[2] = (Dat >> 8) & 0xFF;
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temp[3] = Dat & 0xFF;
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for(i=0;i<4;i++)
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{
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UART_SendByte(temp[i]);
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}
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}
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void UART_Send_VOFA(long uart_buff)
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{
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uchar j;
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uchar buff;
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uchar vofa_buff[8];
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bit negative=0;
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if(uart_buff<0)//负数补码转源码
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{
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uart_buff=~uart_buff+1;
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negative = 1;
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}
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for(j=0;j<8;j++)
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{
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vofa_buff[j] = (uart_buff % Cclt_Power(j+1,10)) / Cclt_Power(j,10);//16进制数转10进制，采用小端法存，低位在低字节
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}
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if(negative)
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UART_SendByte(45);//输出负数
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for(j=0;j<8;j++)
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{
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buff = vofa_buff[7-j]+48;//输出为字符串，需要先送高位
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UART_SendByte(buff);
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}
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}
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void UART_SendAll(long* Dat)//4个传感器原始数据都发送
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{
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uchar i,j;
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uchar temp[4];
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for(j=0;j<4;j++)
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{
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temp[0] = (Dat[j] >> 24) & 0xFF;
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temp[1] = (Dat[j] >> 16) & 0xFF;
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temp[2] = (Dat[j] >> 8) & 0xFF;
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temp[3] = Dat[j] & 0xFF;
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for(i=0;i<4;i++)
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{
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UART_SendByte(temp[i]);
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}
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}
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}
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