58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
#include "H/Function_Init.H"
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#define USCI0_Mode SPI0
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void Uart0_Init(uint Freq,unsigned long int baud);
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void TWI0_Init(void);
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void SPI0_Init(void);
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bit Uart0SendFlag = 0; //Uart0发送中断标志位
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bit Uart0ReceiveFlag = 0; //Uart0接收中断标志位
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bit SPI0Flag = 0; //SPI0数据传输完成标志位
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bit TWI0Flag = 0; //TWI0中断标志位
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/*****************************************************
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*函数名称：void USCI0_Test(void)
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*函数功能：USCI0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 USCI0_Test(void)
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{
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SPI0_Init();
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while(1)
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{
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US0CON2 = 0xAA;
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while(!SPI0Flag);
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SPI0Flag = 0;
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Delay(1000);
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}
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}
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/*****************************************************
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*函数名称：void SPI0_Init(void)
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*函数功能：SPI0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 SPI0_Init(void)
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{
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OTCON |= 0X10; //选择SPI0模式
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US0CON0 = 0x3F; //设置SPI0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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US0CON1 = 0x01; //MSB优先发送，8位传输，允许发送中断
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US0CON0 |= 0x80; //开启SPI0
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IE1 |= 0x01;
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EA = 1;
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}
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void Spi0_Int(void) interrupt 7 //SPI0中断函数
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{
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if(US0CON1&0X08) //发送缓存器空标志判断
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{
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US0CON1 &= ~0X08;
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}
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if(US0CON1&0X80) //数据传输标志位判断
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{
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US0CON1 &= ~0X80;
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SPI0Flag = 1;
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}
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} |