33、51单片机温度烟雾采集NRF905无线传输程序

#include <reg52.h> #include <ABSACC.h> #include <intrins.h> #include <stdio.h> //---------------------------------------------------------------------------------------------------------------- #define uint unsigned int #define uchar unsigned char //---------------------------------------------------------------------------------------------------------------- #define BYTE_BIT0 0x01 #define BYTE_BIT7 0x80 //---------------------------------------------------------------------------------------------------------------- bdata unsigned char DATA_BUF; #define DATA7 ((DATA_BUF&BYTE_BIT7) != 0) #define DATA0 ((DATA_BUF&BYTE_BIT0) != 0) sbit flag =DATA_BUF^7; sbit flag1 =DATA_BUF^0; //---------------------------------------------------发送数据缓冲区------------------------------------------------- #define TxRxBuf_Len 4 unsigned char TxRxBuf[TxRxBuf_Len]={0x29,0x30,0x31,0x32,}; code TxAddress[4]={0xcc,0xcc,0xcc,0xcc}; char tf; uchar H_temp=40; uint L_temp=3000; uchar set_flag=0; bit beep_flag=0; bit beep1=0; //----------------------------------------NRF905工作模式控制端口------------------------------------------------------ sbit TXEN=P1^4; sbit TRX_CE=P3^2; sbit PWR=P1^3; //----------------------------------------LED显示端口--------------------------------------------------- //sbit LED=P3^5; //----------------------------------------NRF905 数据交换端口--------------------------------------------------- sbit MISO=P1^6; sbit MOSI=P1^1; sbit SCK=P1^5; sbit CSN=P1^0; //----------------------------------------nrf905状态端口--------------------------------------------------------- sbit AM=P1^7; sbit DR=P3^3; sbit CD=P1^2; //--------------------------------------------------------------------------------------------------------------- //----------------------------------------按键端口------------------------------------------------------- sbit KEY1=P3^5; sbit KEY2=P3^6; sbit KEY3=P3^7; sbit BEEP=P3^4; sbit LED1=P2^0; sbit LED2=P2^1; sbit LED3=P2^2; //sbit LED4=P2^3; //----------------------------------------nrf905控制指令------------------------------------------- #define WC 0x00 #define RC 0x10 #define WTP 0x20 #define RTP 0x21 #define WTA 0x22 #define RTA 0x23 #define RRP 0x24 //------------------------------------------------NRF905寄存器配置------------------------------------------------ unsigned char idata RFConf[11]= { 0x00, //配置命令// 0x4c, //CH_NO,配置频段在430MHZ 0x0c, //输出功率为10db,不重发，节电为正常模式 0x44, //地址宽度设置，为4字节 0x04,0x04, //接收发送有效数据长度为4字节 0xCC,0xCC,0xCC,0xCC, //接收地址 0x58, //CRC充许，8位CRC校验，外部时钟信号不使能，16M晶振 }; //================================================延时=========================================================== void nrf905_Delay(int n) { uint i; while(n--) for(i=0;i<80;i++); } //=================================================SPI读函数======================================================= unsigned char SpiRead(void) { unsigned char j; for (j=0;j<8;j++) { DATA_BUF=DATA_BUF<<1; SCK=1; if (MISO) //读取最高位，保存至最末尾，通过左移位完成整个字节 { DATA_BUF|=BYTE_BIT0; } else { DATA_BUF&=~BYTE_BIT0; } SCK=0; } return DATA_BUF; } //===========================================SPI写函数=============================================================== void SpiWrite(unsigned char send) { unsigned char i; DATA_BUF=send; for (i=0;i<8;i++) { if (DATA7) //总是发送最高位 { MOSI=1; } else { MOSI=0; } SCK=1; DATA_BUF=DATA_BUF<<1; SCK=0; } } //------------------------------------------------------初始化nRF905--------------------------------------------- void nRF905Init(void) { CSN=1; // Spi disable SCK=0; // Spi clock line init low DR=1; // Init DR for input AM=1; // Init AM for input CD=1; // Init CD for input PWR=1; // nRF905 power on TRX_CE=0; // Set nRF905 in standby mode TXEN=0; // set radio in Rx mode } //-----------------------------------------------------初始化寄存器----------------------------------------------- void Config905(void) { uchar i; CSN=0; // Spi enable for write a spi command //SpiWrite(WC); // Write config command写放配置命令 for (i=0;i<11;i++) // Write configration words 写放配置字 { SpiWrite(RFConf[i]); } CSN=1; // Disable Spi } //-----------------------------------------------------发送数据打包--------------------------------------------------- void TxPacket(uchar *TxRxBuf) { uchar i; //Config905(); CSN=0; SpiWrite(WTP); // Write payload command for (i=0;i<4;i++) { SpiWrite(TxRxBuf[i]); // Write 32 bytes Tx data } CSN=1; nrf905_Delay(1); // Spi disable CSN=0; // Spi enable for write a spi command SpiWrite(WTA); // Write address command for (i=0;i<4;i++) // 写入与对方地址一样的地址 { SpiWrite(TxAddress[i]); } CSN=1; // Spi disable TRX_CE=1; // Set TRX_CE high,start Tx data transmission nrf905_Delay(1); // while (DR!=1); TRX_CE=0; // Set TRX_CE low } //----------------------------------------------设置发送初始状态--------------------------------------------- void SetTxMode(void) { TRX_CE=0; TXEN=1; nrf905_Delay(1); // nrf905_Delay for mode change(>=650us) } //-----------------------------------------------设置接收初始化--------------------------------------------------- void SetRxMode(void) { TXEN=0; TRX_CE=1; nrf905_Delay(1); // nrf905_Delay for mode change(>=650us) } //-------------------------------------------------判断数据接收状态----------------------------------------------------- unsigned char CheckDR(void) //检查是否有新数据传入 Data Ready { DR=1; //通过对端口写1，可以使端口为输入状态，这51的 特性。不熟悉者可以参阅51相关书籍作证(将DR端口设置为输入状态。) if (DR==1) { DR=0; return 1; } else { return 0; } } //----------------------------------------------------读NRF905接收数据------------------------------------------------------------ void RxPacket(void) { uchar i; nrf905_Delay(1); // TRX_CE=0; // Set nRF905 in standby mode nrf905_Delay(100); TRX_CE=0; CSN=0; // Spi enable for write a spi command nrf905_Delay(1); SpiWrite(RRP); for (i = 0 ;i < 4 ;i++) { TxRxBuf[i]=SpiRead(); // Read data and save to buffer } CSN=1; nrf905_Delay(10); TRX_CE=1; } //--------------------------------------------------------数据接收------------------------------------------------ #include"LCD1602.H" void RX(void) { SetRxMode(); //while (CheckDR()==0); // nrf905_Delay(10); RxPacket(); if(TxRxBuf[0]==0x29) { display(); TxRxBuf[0]=0; } } void key() { uchar i; if(KEY1==0) { nrf905_Delay(8); if(KEY1==0) { set_flag++; if(set_flag>2) { WRITE_LCD1602_COM(0x80); for(i=0;i<16;i++) WRITE_LCD1602_DAT(DIS_TAB1[i]); WRITE_LCD1602_COM(0x80+0x40); for(i=0;i<16;i++) WRITE_LCD1602_DAT(DIS_TAB2[i]); set_flag=0; } else if(set_flag==1) { WRITE_LCD1602_COM(0x80); for(i=0;i<16;i++) WRITE_LCD1602_DAT(DIS_TAB3[i]); WRITE_LCD1602_COM(0x80+0x40); for(i=0;i<16;i++) WRITE_LCD1602_DAT(DIS_TAB4[i]); } while(!KEY1); } } switch(set_flag) { case 1: if(KEY2==0) { nrf905_Delay(8); if(KEY2==0) { if(H_temp<99) H_temp++; while(!KEY2); } } else if(KEY3==0) { nrf905_Delay(8); if(KEY3==0) { if(H_temp>0) H_temp--; while(!KEY3); }