基于NRF24L01無線模塊的STC89C52單片機接收(RX)C語言程序

#include #define unchar unsigned char#define unint  unsigned int/*******************************************************/#define TX_ADDR_WITDH 5//發(fā)送地址寬度設置為5個字節(jié)#define RX_ADDR_WITDH 5//接收地址寬度設置為5個字節(jié)#define TX_DATA_WITDH 4//發(fā)送數(shù)據(jù)寬度1個字節(jié)#define RX_DATA_WITDH 4//接收數(shù)據(jù)寬度1個字節(jié)/*******************命令寄存器***************************/#define  R_REGISTER      0x00//讀取配置寄存器#define  W_REGISTER      0x20//寫配置寄存器#define  R_RX_PAYLOAD 0x61//讀取RX有效數(shù)據(jù)#define  W_TX_PAYLOAD 0xa0//寫TX有效數(shù)據(jù)#define  FLUSH_TX 0xe1//清除TXFIFO寄存器#define  FLUSH_RX 0xe2//清除RXFIFO寄存器#define  REUSE_TX_PL     0xe3//重新使用上一包有效數(shù)據(jù)#define  NOP             0xff//空操作/******************寄存器地址****************************/#define  CONFIG          0x00//配置寄存器#define  EN_AA 0x01//使能自動應答#define  EN_RXADDR       0x02//接收通道使能0-5個通道#define  SETUP_AW        0x03//設置數(shù)據(jù)通道地址寬度3-5#define  SETUP_RETR      0x04//建立自動重發(fā)#define  RF_CH           0x05//射頻通道設置#define  RF_SETUP        0x06//射頻寄存器#define  STATUS          0x07//狀態(tài)寄存器#define  OBSERVE_TX      0x08//發(fā)送檢測寄存器#define  CD              0x09//載波#define  RX_ADDR_P0      0x0a//數(shù)據(jù)通道0接收地址#define  RX_ADDR_P1      0x0b//數(shù)據(jù)通道1接收地址#define  RX_ADDR_P2      0x0c//數(shù)據(jù)通道2接收地址#define  RX_ADDR_P3      0x0d//數(shù)據(jù)通道3接收地址#define  RX_ADDR_P4      0x0e//數(shù)據(jù)通道4接收地址#define  RX_ADDR_P5      0x0f//數(shù)據(jù)通道5接收地址#define  TX_ADDR         0x10//發(fā)送地址#define  RX_PW_P0        0x11//P0通道數(shù)據(jù)寬度設置#define  RX_PW_P1        0x12//P1通道數(shù)據(jù)寬度設置#define  RX_PW_P2        0x13//P2通道數(shù)據(jù)寬度設置#define  RX_PW_P3        0x14//P3通道數(shù)據(jù)寬度設置#define  RX_PW_P4        0x15//P4通道數(shù)據(jù)寬度設置#define  RX_PW_P5        0x16//P5通道數(shù)據(jù)寬度設置#define  FIFO_STATUS     0x17//FIFO狀態(tài)寄存器/*******************相關函數(shù)聲明**************************/unchar NRFACK();unchar NRFSPI(unchar date);unchar NRFReadReg(unchar RegAddr);unchar NRFWriteReg(unchar RegAddr,unchar date);unchar NRFReadRxDate(unchar RegAddr,unchar *RxDate,unchar DateLen);unchar NRFWriteTxDate(unchar RegAddr,unchar *TxDate,unchar DateLen);unchar NRFRevDate(unchar *RevDate);void NRFSetTxMode(unchar *TxDate);void NRF24L01Int();void NRFSetRXMode();unchar CheckACK();unchar sta;/******************SPI口定義*******************************/sbit CE=P2^0;  //RX/TX模式選擇端sbit IRQ=P2^5; //可屏蔽中斷端sbit CSN=P2^3; //SPI片選端//就是SSsbit MOSI=P2^4;//SPI主機輸出從機輸入端sbit MISO=P2^2;//SPI主機輸出從機輸出端sbit SCLK=P2^1;//SPI時鐘端unchar RevTempDate[5];//最后一位用來存放結(jié)束標志unchar code TxAddr[]={0x34,0x43,0x10,0x10,0x01};//發(fā)送地址/*****************狀態(tài)標志*****************************************/unchar bdata sta;   //狀態(tài)標志sbit RX_DR=sta^6;sbit TX_DS=sta^5;sbit MAX_RT=sta^4;/*****************SPI時序函數(shù)******************************************/unchar NRFSPI(unchar date){unchar i;for(i=0;i<8;i++)          // 循環(huán)8次{if(date&0x80)MOSI=1;elseMOSI=0;   // byte最高位輸出到MOSIdate<<=1;             // 低一位移位到最高位SCLK=1;if(MISO)               // 拉高SCK，nRF24L01從MOSI讀入1位數(shù)據(jù)，同時從MISO輸出1位數(shù)據(jù)date|=0x01;       // 讀MISO到byte最低位SCLK=0;            // SCK置低}return(date);           // 返回讀出的一字節(jié)}/**********************NRF24L01初始化函數(shù)*******************************/void NRF24L01Int(){Delay(2);//讓系統(tǒng)什么都不干CE=0; //待機模式1  CSN=1;  SCLK=0;IRQ=1;}/*****************SPI讀寄存器一字節(jié)函數(shù)*********************************/unchar NRFReadReg(unchar RegAddr){unchar BackDate;CSN=0;//啟動時序NRFSPI(RegAddr);//寫寄存器地址BackDate=NRFSPI(0x00);//寫入讀寄存器指令  CSN=1;return(BackDate); //返回狀態(tài)}
				
            

				
					
					
				
			
                
			
							

                
			            

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