jjdogrc.c

这是一个通过PC机发指令到串口,单片机接收后通过发射模块,发送到玩具上,玩具解析,得得相应动作,通过调试成功,可以直接使用

#include <stdio.h>
#include "cygnal\c8051f330.h"
#define SYSCLCK 3062500
#define BAUDRATE 9600

sfr16 T3   = 0x94;
sfr16 T3RL = 0x92;
sbit inA   = P1^0;
sbit inB   = P1^1;
sbit inC   = P1^2;
sbit OutA  = P1^3;
sbit OutB  = P1^4;
sbit OutC  = P1^5;
sbit LED1  = P1^6;
sbit LED2  = P1^7;

unsigned char tempBuffer[20];
unsigned char xdata PrintBuffer[128];
unsigned char p_PB_end, p_PB_this;
unsigned int t3delay;
bit errflag;

void Init_Device(void)
{
    int i = 0;
	unsigned long sclk = SYSCLCK;
    PCA0MD    &= ~0x40;
    PCA0MD    = 0x00;		//禁用看门狗	

	P0 = 0xF3;	//将晶振引脚置低


    P0MDIN    = 0xF3;
    P0SKIP    = 0x0C;
    XBR0      = 0x01;
    XBR1      = 0x40;

/*    OSCXCN    = 0x67;
    for (i = 0; i < 3000; i++);  // Wait 1ms for initialization
    while ((OSCXCN & 0x80) == 0);
    CLKSEL    = 0x01;
*/
	
	switch(sclk)
	{
	case 24500000:
	    OSCICN    = 0x83;
		break;
	case 12250000:
	    OSCICN    = 0x82;
		break;
	case 6125000:
	    OSCICN    = 0x81;
		break;
	case 3062500:
	default:
	    OSCICN    = 0x80;
		break;		
	}

    VDM0CN    = 0x80;
    for (i = 0; i < 350; i++);  // Wait 100us for initialization
    RSTSRC    = 0x06;			//内部电压监视,时钟丢失检测
    //OSCICN    = 0x00;			//禁止内部时钟

	EA = 1;
}




void WriteBuffer(unsigned char n, char *Buffer)
{	//Buffer总长为128
	unsigned char p_PB_temp,i;

	p_PB_temp = p_PB_end;
	for(i=0;i<n;i++)
	{
		*(PrintBuffer + p_PB_temp) = *(Buffer + i);
		p_PB_temp++;
		if(p_PB_temp > 127)
			p_PB_temp = 0;
	}
	if(p_PB_end == p_PB_this)
	{
		p_PB_end = p_PB_temp;
		SBUF0 = *(PrintBuffer + p_PB_this);
	}
	else
		p_PB_end = p_PB_temp;
}

void UART0_Init(unsigned int baud)
{
	unsigned long sclk = SYSCLCK;
	TMOD      = 0x20;	
	switch(sclk)
	{
	case 3062500:
		switch(baud)	//sysclk/2/分频数/baud
		{
		case 4800:				//系统时钟4分频,4785
	    	CKCON     = 0x01;
		    TH1       = -80;
			break;
		case 19200:				//系统时钟4分频,19140
	    	CKCON     = 0x01;
		    TH1       = -20;
			break;
		case 9600:				//系统时钟4分频,9570
		default:				//缺省为9600
			CKCON     = 0x01;	//外部晶振8分频
	    	TH1       = -40;	//9600;
			break;
		}
		break;
	case 6125000:
		switch(baud)	//sysclk/2/分频数/baud
		{
		case 4800:				//系统时钟4分频,4785
	    	CKCON     = 0x01;
		    TH1       = -160;
			break;
		case 19200:				//系统时钟4分频,19140
	    	CKCON     = 0x01;
		    TH1       = -40;
			break;
		case 9600:				//系统时钟4分频,9570
		default:				//缺省为9600
			CKCON     = 0x01;	//外部晶振8分频
	    	TH1       = -80;	//9600;
			break;
		}
		break;
	case 12250000:
		switch(baud)	//sysclk/2/分频数/baud
		{
		case 4800:				//系统时钟12分频,4770
	    	CKCON     = 0;
		    TH1       = -107;
			break;
		case 19200:				//系统时钟4分频,19140
	    	CKCON     = 0x01;
		    TH1       = -80;
			break;
		case 9600:				//系统时钟4分频,9570
		default:				//缺省为9600
			CKCON     = 0x01;	
	    	TH1       = -160;	//9600;
			break;
		}
		break;
	case 24500000:
	default:
		switch(baud)	//sysclk/2/分频数/baud
		{
		case 4800:				//系统时钟12分频,4770
	    	CKCON     = 0;
		    TH1       = -214;
			break;
		case 19200:				//系统时钟4分频,19140
	    	CKCON     = 0x01;
		    TH1       = -160;
			break;
		case 9600:				//系统时钟12分频,9570
		default:				//缺省为9600
			CKCON     = 0;	
	    	TH1       = -107;	//9540;
			break;
		}
		break;		
	}
	TL1 	  = TH1;
	TR1 	  = 1;

    SCON0     = 0x10;
	ES0 = 1;
}




void Timer3_Init(unsigned char ms)	//定时长ms
{
	if(ms>250)
		ms = 250;
    T3RL = -SYSCLCK/12/1000*ms;//100HZ
	T3 = T3RL;
    TMR3CN = 0x04;		//使用内部晶振的12分频
	EIE1 |= 0x80;		//定时器3中断允许	
}


void Timer3_ISR(void) interrupt 14		//启动发送数据
{
	TMR3CN &= 0x7F;		//清中断标志
    TMR3CN = 0x00;		//禁止定时器

	LED2 = ~LED2;	//工作指示灯
	P1 |= 0x3F;
/*	InA = 1;
	InB = 1;
	InC = 1;
	OutA = 1;
	OutB = 1;
	OutC = 1;
*/
	
	if(t3delay)
		t3delay--;
}


void UART0_ISR(void) interrupt 4
{
	static unsigned char Buf[5];
	static unsigned char c,in,out;
    if(TI0)
    {   TI0=0;
		p_PB_this++;
		if(p_PB_this > 127)
 			p_PB_this = 0;
		if(p_PB_this != p_PB_end)
			SBUF0 = *(PrintBuffer + p_PB_this);
	}
	 if(RI0)
	    {   RI0 = 0;
			c = SBUF0;
			Buf[0] = Buf[1];
			Buf[1] = Buf[2];
			Buf[2] = Buf[3];
			Buf[3] = Buf[4];
			Buf[4] = c;
			if(Buf[0] == 0xFF && Buf[3] == 0xFE  && Buf[4] == 0xFD)
			{
				in = Buf[1] - 8;
				in &= 0x07;
				out = Buf[2] - 1;
				out &= 0x07;
				if(in>6 || out>6)
				{
					errflag = 1;
				}
				else 
				{
					out <<= 3;
					out |=  in;
					in = P1 & 0xC0;
					out |= in;
					P1 = out;
					LED1 = ~LED1;
			   		Timer3_Init(50);
				}
			}
//		Timer3_Init(100);
		}
}
void main(void)
{
	unsigned int i;
	t3delay= 0;
	errflag =0;
	p_PB_this =0;
	p_PB_end =0;
	Init_Device();
	UART0_Init(BAUDRATE);
	
	Timer3_Init(10);
	while(1)
	{
		if(errflag)
		{
			errflag = 0;
			i = sprintf(tempBuffer,"Err Input!");
			WriteBuffer(i,tempBuffer);
		}
	}
}