nrf24l01無線評估開發(fā)包模塊使用手冊

錯誤！未定義書簽 nRF24L01+SPI讀操 ShockBurstdBm的功率發(fā)射時(shí)，工作電流也只有9mA;而對應(yīng)的工作電流12.3mA，多種低功率工作模式(掉電模式和空閑模式)使節(jié)能設(shè)2.4GMultiCeiver功能提供了比現(xiàn)有的nRF24XX的功能和更低的電源消耗,與目前的藍(lán)牙技術(shù)相比在提供更高速率的同時(shí)，而只需花更小的功耗.nRF24L01nRF24L01250kbps低速功能。V-40to℃10%～%2.4--250kbps1Mbps個(gè)11.9-3.62無3456789無超過3.6V將會燒毀模塊。推薦電壓3.3V左右；SPI51P010KIO10mA，需要串聯(lián)2-5K電阻分壓，否則容易燒毀模塊!如果是3.3V的MCU，可以直接和RF24L01 PWR_UPregisterPRIM_RXregister數(shù)據(jù)在空中停留時(shí)間短，性高。EnhancedShockBurstTM技術(shù)EnhancedShockBurstTMnRF24L01+自動處理字高，至少10us，將時(shí)發(fā)送過程完成后。10usShockBurstTM發(fā)射； 后，當(dāng)接收到正確的數(shù)據(jù)包(正確的地址和CRC)，nRF2401自動把字頭、地址和CRC校驗(yàn)位移去；nRF24L01+的所有配置工作都是MCU通過SPI接口讀寫操作完成，30EnhancedShockBurstTM文著重介紹如何把nRF24L01+配置為EnhancedShockBurstTM收發(fā)模式，從而掌握無線數(shù)據(jù)控制操作方法。ShockBurstTM的配置字使夠區(qū)分接收數(shù)據(jù)包中的數(shù)據(jù)和CRC；CRC校驗(yàn)：使nRF24L01+能夠生成CRC和。當(dāng)使用nRF24L01+片內(nèi)的CRCCONFIGEN_CRC)CRCvoid{ //SPI SPI_Write_Buf(WRITE_REG+TX_ADDR,TX_ADDRESS,SPI_Write_Buf(WRITE_REG+RX_ADDR_P0,RX_ADDRESS,SPI_RW_Reg(WRITE_REG+EN_AA,//0ACKSPI_RW_Reg(WRITE_REG+EN_RXADDR,SPI_RW_Reg(WRITE_REG+RF_CH,0); 設(shè)置信道工作為2.4GHZ，收發(fā)必須一致SPI_RW_Reg(WRITE_REGRX_PW_P0,RX_PLOAD_WIDTH);SPI_RW_Reg(WRITE_REG+RF_SETUP, }uintSPI_RW(uint{uintfor(bit_ctr=0;bit_ctr<8;bit_ctr++)//output8-{MOSI=(uchar&0x80); //output'uchar',MSBtoMOSIuchar=(uchar<<1); //shiftnextbitintoMSB..SCK=1; //SetSCKhigh..uchar|=MISO; //capturecurrentMISObitSCK=0; //..thensetSCKlowagain} //returnread}ucharSPI_Read(uchar{ucharCSN= //CSNlow,initializeSPI //Selectregistertoreadfrom..reg_val=SPI_RW(0); //..thenreadregistervalueCSN=1; //CSNhigh,terminateSPIcommunication //returnregistervalue}uintSPI_RW_Reg(ucharreg,uchar{uintCSN=0; //CSNlow,initSPItransactionstatus= //selectregister//..andwritevaluetoCSN= //CSNhigh //returnnRF24L01+status}uintSPI_Read_Buf(ucharreg,uchar*pBuf,uchar{uintCSN=0; //SetCSNlow,initSPIstatus= //SelectregistertowriteandreadstatusucharpBuf[uchar_ctr]=SPI_RW(0); CSN= //returnnRF24L01+status}uintSPI_Write_Buf(ucharreg,uchar*pBuf,uchar{uintCSN= status=for(uchar_ctr=0;uchar_ctr<uchars;uchar_ctr++)//CSN=1; }void{SPI_RW_Reg(WRITE_REG+CONFIG,IRQ，16CRC，主接收CE=}unsignedcharnRF24L01+_RxPacket(unsignedchar*{unsignedchar //狀態(tài)寄存其來判斷數(shù)據(jù)接收狀 {CE= //readreceivepayloadfromRX_FIFOrevale //數(shù)據(jù)完成標(biāo)}return}voidnRF24L01+_TxPacket(unsignedchar*{ //StandByISPI_Write_Buf(WRITE_REG+RX_ADDR_P0,TX_ADDRESS,SPI_Write_Buf(WR_TX_PLOAD,tx_buf,TX_PLOAD_WIDTH);SPI_RW_Reg(WRITE_REG+CONFIG, //置高CE