Header部分

#ifndef __STATE_H
#define __STATE_H	 
#include "sys.h"
#include "24l01.h"
#include "key.h"
#include "led.h"
#include "lcd.h"
#include "delay.h"
//Mini STM32开发板
//LED驱动代码			 
//ZForce@STM32
//2010/11/24
#define RF_IDLE 	  0x00
#define RF_INQUERY    0x01	
#define RF_COMMUTE    0x02

#define RF_SLAVE_CH    0x02
#define RF_SLAVE_ID    0x02
extern u8 tmp_buf[33];	
void StateMachine(u8 mode);
 				    
#endif

C部分

#include "state.h"


u8 test[100];  //测试用
 

void StateMachine(u8 mode)
{
	static u8 sta;
	static u8 RF_IDLE_CH;
	u8 key = 0;
	//tmp_buf[31] = 0x00;	//确认复位
	//test[0] = sta;
	//test[1] = RF_IDLE_CH;
	if(0 == mode)// MASTER 主机模式
	{
		LCD_ShowString(60,130,"Master Mode    ");
		switch(sta)
		{
			case RF_IDLE :
						  	LCD_ShowString(60,150,"Scan Channel...");	
				            LCD_ShowString(60,170,"               ");
							LCD_ShowString(60,190,"               ");
						  	LED0 = 1;
						    if(125 == RF_IDLE_CH)	//最大值复位
							{
								RF_IDLE_CH = 0;
							} 

							RX_Mode(RF_IDLE_CH);// 括号是频率
							
							if(0 == NRF24L01_RxPacket(tmp_buf))//	当接收到数据时更改状态 返回值为0表示收到 1为未收到
							{
								sta = RF_COMMUTE;
								
								
							}								
							else							  //	没接收到数据时保持状态
							{
								sta = RF_IDLE;
								RF_IDLE_CH++;
							}
							break;
						  
			case RF_COMMUTE :
						  
						  	
							LCD_ShowString(60,150,"Commute with    ");
							LCD_ShowString(60,170,tmp_buf);//显示从机发送信息，例如从机身份
						    LED0 = 0;
							key= KEY_Scan();
							if(1 == key)		 //done
							{
							
								
								LCD_ShowString(60,190,"Done     ");
								delay_ms(5000);
								LCD_ShowString(60,190,"         ");
								sta = RF_IDLE;	
									
								
							}
							else if(2 == key)  //cancel
							{
								sta = RF_IDLE;
								
							}
						    else
							{
								sta = RF_COMMUTE;	
							}
							
							
							
							break;
						  

		
			default : break;
		}
	}
	
	if(mode == 1)// SLAVE 从机模式
		{
		
		LCD_ShowString(60,130,"Slave Mode       ");
		key= KEY_Scan();
		if(2 == key)		 //done
		{
			sta = RF_INQUERY;
		}
		
		switch(sta)
		{
			
			case RF_IDLE    :
							
								LCD_ShowString(60,150,"RF Off              ");
								PowerOff_Mode();
								break;
							
			case RF_INQUERY :
							
								LED0 = 0;
								LED1 = 1;
								LCD_ShowString(60,150,"Inquery             ");
								tmp_buf[0] = 0x41;				 //这里可详细给32byte赋值
								TX_Mode(RF_SLAVE_CH);
								if(TX_OK == NRF24L01_TxPacket(tmp_buf)) //发送并且得到返回值
								{
	               //这里可以根据需要继续发数据  NRF24L01_TxPacket
									sta = RF_IDLE;
								}
								else
								{
									sta = RF_INQUERY;
								}
								break;
					
			default : break;
		}
	}	
}