uart0.c

C8051F310单片机串口通信程序,串口发送,波特率96

#include "C8051F020.h"
#include "string.h"

// Peripheral specific initialization functions,
// Called from the Init_Device() function
void Reset_Sources_Init()
{
    WDTCN     = 0xDE;
    WDTCN     = 0xAD;
}

void Timer2_Init()
{
    CKCON     = 0x20; 		//T2按系统时钟计数
    T2CON     = 0x30;		//工作方式2
    RCAP2L    = 0x70;		//波特率2400，重载值65536-11059200/2400/32=65536-144=65392=0xff70
    RCAP2H    = 0xFF;
    TL2       = 0xFF;
    TH2       = 0xFF;
    T2CON|= 0x04;			//启动T2

}

void UART0_Init()
{
    SCON0     = 0x40;  		//方式1，波特率不加倍
}

void Port_IO_Init()
{
   

    XBR0      = 0x04; 		//UART0配置端口，并使能交叉开关
    XBR2      = 0x40;
}

void Oscillator_Init()
{
    int i = 0;
    OSCXCN    = 0x77;
    for (i = 0; i < 3000; i++);  // Wait 1ms for initialization
    while ((OSCXCN & 0x80) == 0);
    OSCICN    = 0x0C;
}

void Interrupts_Init()
{								
    IE        = 0x10;			//开UART中断
}

// Initialization function for device,
// Call Init_Device() from your main program

char c[]={"China"};			//中断方式
char i=0,length;
void main(void)
{
	//char c[]={"China"};	 查询方式
	//char i=0,length;
	Reset_Sources_Init();
    Oscillator_Init();
    Interrupts_Init();
    Port_IO_Init();
    Timer2_Init();
    UART0_Init();
	EA=1;
	length=strlen(c);
	SBUF0=c[i];
	while(1);
	
								//for(i=0;i<length;i++)			查询方式
								//{
								//	SBUF0=c[i];
								//	while(!TI0);
								//	TI0=0; 			
								//}
	
}

void interrupt_UART0 (void) interrupt 4
{
	TI0=0;
	if (i<length)
	{
	  	i++;
	  	SBUF0=c[i];
	}
	else
	{
		EA=0;
	}

}