359 lines
7.7 KiB
C
359 lines
7.7 KiB
C
#include "H/Function_Init.H"
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//选择三合一模块：
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#define USCI2 2
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#define USCI3 3
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#define USCI4 4
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#define USCI5 5
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//选择三合一模式：
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#define UartX 0
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#define TWIX 1
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#define SPIX 2
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#define USCIX_Select USCI3
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#define USCIX_Mode 2
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void UARTX_Init(uint Freq, unsigned long int baud);
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void TWIX_Init(void);
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void SPIX_Init(void);
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bit UartXSendFlag = 0; //UartX发送中断标志位
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bit UartXReceiveFlag = 0; //UartX接收中断标志位
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bit SPIXFlag = 0; //SPIX数据传输完成标志位
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bit TWIXFlag = 0; //TWIX中断标志位
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/*****************************************************
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*函数名称：void USCIX_Test(void)
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*函数功能：USCIX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 USCIX_Test(void)
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{
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USXINX = USCIX_Select; //USCIX寄存器指向对应的USCI
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//判断三合一模式
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#if (USCIX_Mode == UartX)
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{
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UARTX_Init(32, 9600); //初始化串口，输入主频和波特兰
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while(1)
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{
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USXCON3 = 0xAA; //发送0xAA
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while(!UartXSendFlag); //等待发送完成标志位置起
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UartXSendFlag = 0; //清除发送标志位
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}
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}
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#elif (USCIX_Mode == TWIX)
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{
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TWIX_Init();
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while(1)
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{
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USXCON1 |= 0x20; //产生起始条件
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while(!TWIXFlag);
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TWIXFlag = 0;
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USXCON3 = 0x10; //发送地址及写命令
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while(!TWIXFlag);
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TWIXFlag = 0;
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USXCON3 = 0x55;
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while(!TWIXFlag);
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TWIXFlag = 0;
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Delay(100);
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USXCON1 |= 0x10; //发送结束信号
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Delay(100);
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}
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}
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#elif (USCIX_Mode == SPIX)
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{
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SPIX_Init();
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while(1)
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{
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USXCON2 = 0xAA;
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while(!SPIXFlag);
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SPIXFlag = 0;
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Delay(1000);
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}
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}
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#endif
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}
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/*****************************************************
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*函数名称：void UARTX_Init(uint Freq,unsigned long int baud)
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*函数功能：UartX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 UARTX_Init(uint Freq, unsigned long int baud)
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{
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TMCON |= 0xC0; //串行接口USCIX选择Uart通信
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#if (USCIX_Select == USCI2)
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P4CON &= ~0x30;
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P4PH |= 0x30;
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IE2 |= 0x02; //开启中断
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#elif (USCIX_Select == USCI3)
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P2CON &= ~0xC0;
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P2PH |= 0xC0;
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IE2 |= 0x04; //开启中断
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#elif (USCIX_Select == USCI4)
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P4CON &= ~0xC0;
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P4PH |= 0xC0;
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IE2 |= 0x08; //开启中断
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#elif (USCIX_Select == USCI5)
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P0CON &= ~0x0C;
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P0PH |= 0x0C;
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IE2 |= 0x10; //开启中断
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#endif
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USXCON0 = 0x50; //设置通信方式为模式一，允许接收
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USXCON1 = Freq * 1000000 / baud; //波特率低位控制
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USXCON2 = (Freq * 1000000 / baud) >> 8; //波特率高位控制
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EA = 1;
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}
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/*****************************************************
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*函数名称：void TWIX_Init(void)
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*函数功能：TWIX初始化
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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 TWIX_Init(void)
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{
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TMCON |= 0x80; //串行接口USCIX选择TWI通信
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#if (USCIX_Select == USCI2)
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P4CON &= ~0x18;
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P4PH |= 0x18;
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IE2 |= 0x02; //开启中断
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#elif (USCIX_Select == USCI3)
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P2CON &= ~0x60;
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P2PH |= 0x60;
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IE2 |= 0x04; //开启中断
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#elif (USCIX_Select == USCI4)
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P5CON &= ~0x20;
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P5PH |= 0x20;
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P4CON &= ~0x70;
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P4PH |= 0x70;
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IE2 |= 0x08; //开启中断
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#elif (USCIX_Select == USCI5)
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P0CON &= ~0x06;
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P0PH |= 0x06;
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IE2 |= 0x10; //开启中断
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#endif
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TMCON |= 0x80; //选择TWIX模式
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USXCON0 = 0x80; //主模式， 使能应答标志位
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USXCON1 = 0x05; //---- xxxx x为时钟速率
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IE2 |= 1 << (USCIX_Select - 1); //开启中断
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EA = 1;
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}
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/*****************************************************
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*函数名称：void SPIX_Init(void)
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*函数功能：SPIX初始化
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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 SPIX_Init(void)
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{
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TMCON |= 0x40; //串行接口USCIX选择SPI通信
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#if (USCIX_Select == USCI2)
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P4CON &= ~0x38;
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P4PH |= 0x38;
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IE2 |= 0x02; //开启中断
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#elif (USCIX_Select == USCI3)
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P2CON &= ~0xE0;
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P2PH |= 0xE0;
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IE2 |= 0x04; //开启中断
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#elif (USCIX_Select == USCI4)
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P5CON &= ~0x20;
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P5PH |= 0x20;
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P4CON &= ~0xC0;
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P4PH |= 0xC0;
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IE2 |= 0x08; //开启中断
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#elif (USCIX_Select == USCI5)
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P0CON &= ~0x0E;
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P0PH |= 0x0E;
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IE2 |= 0x10; //开启中断
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#endif
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TMCON |= 0X40; //选择SPIX模式
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USXCON0 = 0x3F; //设置SPIX为主设备，SCK空闲时间为高电平，SCK周期第二沿采集数据，时钟速率为Fsys/128
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USXCON1 = 0x01; //MSB优先发送，8位传输，允许发送中断
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USXCON0 |= 0x80; //开启SPIX
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IE2 |= 1 << (USCIX_Select - 1); //开启中断
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EA = 1;
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}
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#if (USCIX_Select == USCI2)
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/*****************************************************
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*函数名称：void TWI2/SPI2/UART2_Int() interrupt 7
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*函数功能：USCI2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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#if (USCIX_Mode == UartX)
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void UART2_Int() interrupt 16 //UartX中断函数
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{
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if(USXCON0 & 0x02) //发送标志位判断
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{
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USXCON0 &= 0xFE;
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UartXSendFlag = 1;
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}
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if((USXCON0 & 0x01)) //接收标志位判断
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{
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USXCON0 &= 0xFD;
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UartXReceiveFlag = 1;
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}
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}
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#elif (USCIX_Mode == TWIX)
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void TWI2_Int() interrupt 16 //TWIX中断函数
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{
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if(USXCON0 & 0x40)
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{
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USXCON0 &= 0xbf; //中断清零
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TWIXFlag = 1;
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}
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}
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#elif (USCIX_Mode == SPIX)
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void SPI2Int(void) interrupt 16 //SPIX中断函数
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{
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if(USXCON1 & 0X08) //发送缓存器空标志判断
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{
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USXCON1 &= ~0X08;
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}
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if(USXCON1 & 0X80) //数据传输标志位判断
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{
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USXCON1 &= ~0X80;
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SPIXFlag = 1;
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}
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}
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#endif
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#elif (USCIX_Select == USCI3)
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/*****************************************************
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*函数名称：void TWI3/SPI3/UART3_Int() interrupt 7
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*函数功能：USCI2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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#if (USCIX_Mode == UartX)
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void UART3_Int() interrupt 17 //UartX中断函数
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{
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if(USXCON0 & 0x02) //发送标志位判断
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{
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USXCON0 &= 0xFE;
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UartXSendFlag = 1;
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}
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if((USXCON0 & 0x01)) //接收标志位判断
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{
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USXCON0 &= 0xFD;
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UartXReceiveFlag = 1;
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}
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}
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#elif (USCIX_Mode == TWIX)
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void TWI3_Int() interrupt 17 //TWIX中断函数
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{
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if(USXCON0 & 0x40)
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{
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USXCON0 &= 0xbf; //中断清零
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TWIXFlag = 1;
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}
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}
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#elif (USCIX_Mode == SPIX)
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void SPI3_Int(void) interrupt 17 //SPIX中断函数
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{
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if(USXCON1 & 0X08) //发送缓存器空标志判断
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{
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USXCON1 &= ~0X08;
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}
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if(USXCON1 & 0X80) //数据传输标志位判断
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{
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USXCON1 &= ~0X80;
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SPIXFlag = 1;
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}
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}
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#endif
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#elif (USCIX_Select == USCI4)
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/*****************************************************
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*函数名称：void TWI4/SPI4/UART4_Int() interrupt 7
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*函数功能：USCI2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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#if (USCIX_Mode == UartX)
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void UART4_Int() interrupt 18 //UartX中断函数
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{
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if(USXCON0 & 0x02) //发送标志位判断
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{
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USXCON0 &= 0xFE;
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UartXSendFlag = 1;
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}
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if((USXCON0 & 0x01)) //接收标志位判断
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{
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USXCON0 &= 0xFD;
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UartXReceiveFlag = 1;
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}
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}
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#elif (USCIX_Mode == TWIX)
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void TWI4_Int() interrupt 18 //TWIX中断函数
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{
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if(USXCON0 & 0x40)
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{
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USXCON0 &= 0xbf; //中断清零
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TWIXFlag = 1;
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}
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}
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#elif (USCIX_Mode == SPIX)
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void SPI4_Int(void) interrupt 18 //SPIX中断函数
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{
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if(USXCON1 & 0X08) //发送缓存器空标志判断
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{
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USXCON1 &= ~0X08;
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}
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if(USXCON1 & 0X80) //数据传输标志位判断
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{
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USXCON1 &= ~0X80;
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SPIXFlag = 1;
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}
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}
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#endif
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#elif (USCIX_Select == USCI5)
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#if (USCIX_Mode == UartX)
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void UART5_Int() interrupt 19 //UartX中断函数
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{
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if(USXCON0 & 0x02) //发送标志位判断
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{
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USXCON0 &= 0xFE;
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UartXSendFlag = 1;
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}
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if((USXCON0 & 0x01)) //接收标志位判断
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{
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USXCON0 &= 0xFD;
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UartXReceiveFlag = 1;
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}
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}
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#elif (USCIX_Mode == TWIX)
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void TWI5_Int() interrupt 19 //TWIX中断函数
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{
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if(USXCON0 & 0x40)
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{
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USXCON0 &= 0xbf; //中断清零
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TWIXFlag = 1;
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}
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}
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#elif (USCIX_Mode == SPIX)
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void SPI5_Int(void) interrupt 19 //SPIX中断函数
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{
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if(USXCON1 & 0X08) //发送缓存器空标志判断
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{
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USXCON1 &= ~0X08;
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}
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if(USXCON1 & 0X80) //数据传输标志位判断
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{
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USXCON1 &= ~0X80;
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SPIXFlag = 1;
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}
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}
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#endif
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#endif
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