master.c

无线模块nrf24l01程序

#include<reg52.h>
#include<def.h>
#include<nRF24L01.h>



sbit    LED2    =P0^5;
sbit    LED1    =P0^6;

sbit    KEY1    =P2^4;//P2^1;
sbit    KEY2    =P2^5;				 
sbit    KEY3    =P2^3;
sbit    KEY4    =P2^2;
sbit    KEY5    =P2^0;
sbit    KEY6    =P2^1;
sbit    FORWARD =P1^0;//P3^5;
sbit    BACK    =P1^1;
sbit    LEFT    =P1^3;
sbit    RIGHT   =P1^2;

void delay(unsigned int s)
{
	unsigned int i;
	for(i=0; i<s; i++);
	for(i=0; i<s; i++);
}


unsigned char old=0xff,new=0xff;
unsigned char bdata keycheck[2]={0xff,0xff};

unsigned char checkkeys_0()
{
	old=new;
	new=0xff;
	if(KEY1==0)new&=0x7f;
	if(KEY2==0)new&=0xbf;
	if(KEY3==0)new&=0xdf;
	if(KEY4==0)new&=0xef;
	if(KEY5==0)new&=0xf7;
	if(KEY6==0)new&=0xfb;
	if(FORWARD==0)new&=0xfd;
	if(BACK==0)new&=0xfe;
	old&=(~new);
	if(old)
	{
		inerDelay_us(10000);
		new=0xff;
		if(KEY1==0)new&=0x7f;
		if(KEY2==0)new&=0xbf;
		if(KEY3==0)new&=0xdf;
		if(KEY4==0)new&=0xef;
		if(KEY5==0)new&=0xf7;
		if(KEY6==0)new&=0xfb;
		if(FORWARD==0)new&=0xfd;
		if(BACK==0)new&=0xfe;
		return old&(~new);
	}
	return 0;
}

unsigned char checkkeys_1()
{
	old=new;
	new=0xff;
	if(LEFT==0)new&=0x7f;
	if(RIGHT==0)new&=0xbf;
//	if(KEY3==0)new&=0xdf;
//	if(KEY4==0)new&=0xef;
//	if(KEY5==0)new&=0xf7;
//	if(KEY6==0)new&=0xfb;
//	if(FORWARD==0)new&=0xfd;
//	if(BACK==0)new&=0xfe;
	old&=(~new);
	if(old)
	{
		inerDelay_us(10000);
		new=0xff;
		if(LEFT==0)new&=0x7f;
		if(RIGHT==0)new&=0xbf;
//		if(KEY3==0)new&=0xdf;
//		if(KEY4==0)new&=0xef;
//		if(KEY5==0)new&=0xf7;
//		if(KEY6==0)new&=0xfb;
//		if(FORWARD==0)new&=0xfd;
//		if(BACK==0)new&=0xfe;
		return old&(~new);
	}
	return 0;
}



void main()
{

	
	TMOD =  0x11;  //设置计数器工作方式为16位装载 ,计数器1波特率发生器2400bps@12MHz
	IE   =  0xff;
	SCON=0x50;
	TCLK=1;
	RCLK=1;
	RCAP2H=0xff;
	RCAP2L=0xFD;//115200Bps
	TR2=1;

	init_io() ;


	while(1)
	 {
		keycheck[0]=checkkeys_0();
		keycheck[1]=checkkeys_1();	   
		if(keycheck[0] || keycheck[1]) nRF24L01_TxPacket(keycheck);
		delay(1000);										  
	 }
}