nrf905无线温度传输与控制

#include <reg52.h> #include <ABSACC.h> #include <intrins.h> #include <stdio.h> #define uint unsigned int //0 ~ 255 #define uchar unsigned char uchar code cdis2[ ] = {"Wendu : . C "} ; char t1,t2; unsigned char data display[5] = {0x00,0x00,0x00,0x00,0x00} ; unsigned char data temp_data[2] = {0x00,0x00} ; char code ditab[16] = {0x00,0x01,0x01,0x02,0x03,0x03,0x04,0x04, 0x05,0x06,0x06,0x07,0x08,0x08,0x09,0x09} ; typedef bit BOOL ; ///////////////// #define BYTE_BIT0 0x01 #define BYTE_BIT1 0x02 #define BYTE_BIT2 0x04 #define BYTE_BIT3 0x08 #define BYTE_BIT4 0x10 #define BYTE_BIT5 0x20 #define BYTE_BIT6 0x40 #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; //-------------------------------------------------------------------------------------------------------------- #define TxRxBuf_Len 4 unsigned char TxRxBuffer[TxRxBuf_Len]; char temp[4]; //--------------------------------------------------------NRF905端口设置------------------------------------------------------- sbit TXEN=P1^0; sbit TRX_CE=P3^4; sbit PWR=P1^1; sbit MISO=P1^6; sbit MOSI=P1^5; sbit SCK=P1^7; sbit CSN=P1^3; sbit AM=P1^4; sbit DR=P3^2; sbit CD=P1^2; sbit beep=P2^3; //---------------------------------------------------------------------------------------------------------------- uchar count1; uchar count2; //---------------------------------------------------------------------------------------------------------------- sbit rs = P2^0; //数据/命令选择端(1/0) sbit rw = P2^1; //读/写选择端(1/0) sbit ep = P2^2; //使能端 //---------------------------------------------------------------------------------------------------------------- uchar seg[10]={0xC0,0xCF,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90}; //0~~9段码 //---------------------------------------------------------NRF905寄存器配置------------------------------------------------ unsigned char idata RFConf[11]= { 0x00, //配置命令// 0x4c, 0x0c, 0x44, 0x04,0x04, 0xcc,0xcc,0xcc,0xcc, 0x58, //CRC充许，8位CRC校验，外部时钟信号不使能，16M晶振 }; //--------------------------------------------------------NRF905控制命令-------------------------------------------- #define WC 0x00 #define RC 0x10 #define WTP 0x20 #define RTP 0x21 #define WTA 0x22 #define RTA 0x23 #define RRP 0x24 //--------------------------------------------------------延时---------------------------------------------------- void Delay(uchar n) { uint k; while(n--) for(k=0;k<8;k++); } void di() { beep=0;Delay(200); beep=1;Delay(200); } //---------------------------------------------------------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状态-------------------------------------------------------- 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NRF905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 } //--------------------------------------------设置接收模式-------------------------------------------------------- void SetRxMode(void) { TXEN=0; TRX_CE=1; Delay(1); // delay for mode change(>=650us) } //--------------------------------------------判断是否接收到数据-------------------------------------------------- unsigned char CheckDR(void) //检查是否有新数据传入 Data Ready { if (DR=1&&TRX_CE==1 && TXEN==0) { // Delay(50) ; return 1; } else { return 0; } } //----------------------------------------------读数据------------------------------------------------------------ void RxPacket(void) //读数据 { uchar i; Delay(1); // TRX_CE=0; // Set nRF905 in standby mode Delay(100); TRX_CE=0; CSN=0; // Spi enable for write a spi command Delay(1); SpiWrite(RRP); for (i = 0 ;i < 4 ;i++) { TxRxBuffer[i]=SpiRead(); Delay(50); // Read data and save to buffer } CSN=1; Delay(10); TRX_CE=1; } //-----------------------------------------------接收数据-------------------------------------------------------- void RX(void) { SetRxMode(); // Set nRF905 in Rx mode while (CheckDR()==0); Delay(10); RxPacket(); Delay(10); } //---------------------------------------------------------------------------------------------------------------- lcddelay(uchar ms) { // 延时子程序 uchar i; while(ms--) { for(i = 0; i<250; i++) { _nop_(); //_nop_(); _nop_(); _nop_(); } } } BOOL lcd_bz() { // 测试LCD忙碌状态 BOOL result; rs = 0; rw = 1; ep = 1; _nop_(); _nop_(); //_nop_(); _nop_(); result = (BOOL)(P0 & 0x80); ep = 0; return result; } lcd_wcmd(uchar cmd) { // 写入指令数据到LCD while(lcd_bz()); rs = 0; rw = 0; ep = 0; _nop_(); _nop_(); P0 = cmd; _nop_(); //_nop_(); //_nop_(); _nop_(); ep = 1; _nop_(); //_nop_(); //_nop_(); _nop_(); ep = 0; } lcd_wdat(uchar dat) { //写入字符显示数据到LCD while(lcd_bz()); rs = 1; rw = 0; ep = 0; P0 = dat; _nop_(); //_nop_(); //_nop_(); _nop_(); ep = 1; _nop_(); //_nop_(); //_nop_(); _nop_(); ep = 0; } lcd_pos(uchar pos) { //设定显示位置 lcd_wcmd(pos | 0x80); } lcd_init() { uchar m ; //LCD初始化设定 lcd_wcmd(0x38); // lcddelay(1); lcd_wcmd(0x0c); // 显示开关 lcddelay(1); lcd_wcmd(0x06); // 输入方式 lcddelay(1); lcd_wcmd(0x01); //清除LCD的显示内容 lcddelay(1); lcd_pos(0x00) ; //设置显示位置为第二行第1个字符 m = 0 ; while(cdis2[m] != '\0') { lcd_wdat(cdis2[m]) ; //显示字符 m++ ; } } /* 数据转换与温度显示 */ /*******************************************************************/ Disp_Temperature() { display[4]=temp_data[0]&0x0f ; display[0]=ditab[display[4]]+0x30 ; //查表得小数位的值 display[4]=((temp_data[0]&0xf0)>>4)|((temp_data[1]&0x0f)<<4) ; display[3]=display[4]/100+0x30 ; display[1]=display[4]%100 ; display[2]=display[1]/10+0x30 ; display[1]=display[1]%10+0x30 ; t1=display[2]; t2=display[1]; if(display[3]==0x30) //高位为0，不显示 { display[3]=0x20 ; if(display[2]==0x30) //次高位为0，不显示 display[2]=0x20 ; } //lcd_pos(0x08) ; // lcd_wdat(display[3]) ; //百位数显示 lcd_pos(0x09) ;