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nrf24l01不能接收数据啊!

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问答对人有帮助，内容完整，我也想知道答案 0 本帖最后由 Supercm 于 2015-1-18 09:18 编辑手上有两个nrf，可以发送数据就是不能接收，大家说说是什么问题啊？如果有完整的收发程序，麻烦发上来！谢谢大家!请大家帮帮忙 0
2015-1-16 16:24:05　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × richthoffen 该类别下有 182 个回答。邀请回答 7vyydyfwef 该类别下有 57 个回答。邀请回答我是卖报的小男孩该类别下有 32 个回答，其中被选为最佳答案 1 次。邀请回答 chenbingjy 该类别下有 31 个回答。邀请回答谦谦三君子该类别下有 27 个回答。邀请回答短短该类别下有 25 个回答。邀请回答 YY599566 该类别下有 22 个回答。邀请回答 dingyang598 该类别下有 22 个回答，其中被选为最佳答案 1 次。邀请回答 nvuuweew 该类别下有 22 个回答。邀请回答 60user16 该类别下有 19 个回答。邀请回答 hapyy 该类别下有 19 个回答。邀请回答 h1654155957.9572 该类别下有 19 个回答。邀请回答 HEHELA 该类别下有 18 个回答。邀请回答 DerSohn 该类别下有 18 个回答。邀请回答 huhu12 该类别下有 18 个回答。邀请回答 csz9981 该类别下有 15 个回答。邀请回答天地直方该类别下有 15 个回答。邀请回答 dull20112011 该类别下有 15 个回答。邀请回答陈军该类别下有 15 个回答。邀请回答 sfafa 该类别下有 14 个回答。邀请回答举报 Supercm 相关推荐 • nrf24l01在stm32与电脑上位机通讯不能接受数据的原因？ 1835 • 为什么移植后的NRF24L01模块只能接收一次数据呢 1166 • nrf24l01模块不能正常接收数据的原因？ 2200 • spi2与nrf24l01复位不能接收是为什么？ 1618 • NRF24L01能接收能发送但是发送的总是20000fe什么的 775 • stm8 nrf24l01驱动问题如何解决 1388 • 请问STM32的MCOx驱动nRF24L01能通信成功吗？ 1257 • STM8S103无线模块nrf24l01接收失败 2150 • NRF24L01模块程序的接收与发送有何区别呢 916 • NRF24L01接收信息时发送端都要重启电源才能接收信息怎么办？ 1393 2个回答

答案对人有帮助，有参考价值 0 发送函数: #include #include *it MISO =P1^5; it MOSI =P1^4; it SCK =P1^3; it CE =P1^1; it CSN =P1^2; it IRQ =P1^6; it LED2 =P0^5; it LED1 =P0^4; it LED3 =P0^6; it KEY1 =P3^0; it KEY2 =P3^1; #define TX_ADR_WIDTH 5 // 5 bytes TX address width #define RX_ADR_WIDTH 5 // 5 bytes RX address width #define TX_PLOAD_WIDTH 20 // 20 bytes TX payload #define RX_PLOAD_WIDTH 20 // 20 bytes TX payload typedef unsigned char BYTE; typedef unsigned char uchar; //************************************************************// // SPI(nRF24L01) commands #define READ_REG 0x00 // Define read command to register #define WRITE_REG 0x20 // Define write command to register #define RD_RX_PLOAD 0x61 // Define RX payload register address #define WR_TX_PLOAD 0xA0 // Define TX payload register address #define FLUSH_TX 0xE1 // Define flush TX register command #define FLUSH_RX 0xE2 // Define flush RX register command #define REUSE_TX_PL 0xE3 // Define reuse TX payload register command #define NOP 0xFF // Define No Operation, might be used to read status register //***********************************************// // SPI(nRF24L01) registers(addresses) #define CONFIG 0x00 // 'Config' register address #define EN_AA 0x01 // 'Enable Auto Acknowledgment' register address #define EN_RXADDR 0x02 // 'Enabled RX addresses' register address #define SETUP_AW 0x03 // 'Setup address width' register address #define SETUP_RETR 0x04 // 'Setup Auto. Retrans' register address #define RF_CH 0x05 // 'RF channel' register address #define RF_SETUP 0x06 // 'RF setup' register address #define STATUS 0x07 // 'Status' register address #define OBSERVE_TX 0x08 // 'Observe TX' register address #define CD 0x09 // 'Carrier Detect' register address #define RX_ADDR_P0 0x0A // 'RX address pipe0' register address #define RX_ADDR_P1 0x0B // 'RX address pipe1' register address #define RX_ADDR_P2 0x0C // 'RX address pipe2' register address #define RX_ADDR_P3 0x0D // 'RX address pipe3' register address #define RX_ADDR_P4 0x0E // 'RX address pipe4' register address #define RX_ADDR_P5 0x0F // 'RX address pipe5' register address #define TX_ADDR 0x10 // 'TX address' register address #define RX_PW_P0 0x11 // 'RX payload width, pipe0' register address #define RX_PW_P1 0x12 // 'RX payload width, pipe1' register address #define RX_PW_P2 0x13 // 'RX payload width, pipe2' register address #define RX_PW_P3 0x14 // 'RX payload width, pipe3' register address #define RX_PW_P4 0x15 // 'RX payload width, pipe4' register address #define RX_PW_P5 0x16 // 'RX payload width, pipe5' register address #define FIFO_STATUS 0x17 // 'FIFO Status Register' register address //***********************************************************// // FUNCTION's PROTOTYPES // /*************************************************************/ // void SPI_Init(BYTE Mode); // Init HW or SW SPI BYTE SPI_RW(BYTE byte); // Single SPI read/write BYTE SPI_Read(BYTE reg); // Read one byte from nRF24L01 BYTE SPI_RW_Reg(BYTE reg, BYTE byte); // Write one byte to register 'reg' BYTE SPI_Write_Buf(BYTE reg, BYTE pBuf, BYTE bytes); // Writes multiply bytes to one register BYTE SPI_Read_Buf(BYTE reg, BYTE pBuf, BYTE bytes); // Read multiply bytes from one register //***************************************************************/ void inerDelay_us(unsigned char n); void init_io(void) ; void SetRX_Mode(void); unsigned char nRF24L01_RxPacket(unsigned char rx_buf); void nRF24L01_TxPacket(unsigned char * tx_buf); extern uchar const TX_ADDRESS[TX_ADR_WIDTH];//TX address extern uchar const RX_ADDRESS[RX_ADR_WIDTH];//;RX address uchar const TX_ADDRESS[TX_ADR_WIDTH] = {0x34,0x43,0x10,0x10,0x01}; // Define a static TX address uchar const RX_ADDRESS[RX_ADR_WIDTH] = {0x34,0x43,0x10,0x10,0x01}; // Define a static RX address uchar bdata sta; *it RX_DR =sta^6; it TX_DS =sta^5; it MAX_RT =sta^4; void inerDelay_us(unsigned char n) { for(;n>0;n--) _nop_(); } void init_io(void) { inerDelay_us(100); CE=0; // chip enable CSN=1; // Spi disable SCK=0; // SPI_Write_Buf(WRITE_REG + TX_ADDR, TX_ADDRESS, TX_ADR_WIDTH); // 写本地地址 SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, RX_ADDRESS, RX_ADR_WIDTH); // 写接收端地址 SPI_RW_Reg(WRITE_REG + EN_AA, 0x01); // 频道0自动 ACK应答允许 SPI_RW_Reg(WRITE_REG + EN_RXADDR, 0x01); // 允许接收地址只有频道0，如果需要多频道可以参考Page21 SPI_RW_Reg(WRITE_REG + RF_CH, 0); // 设置信道工作为2.4GHZ，收发必须一致 SPI_RW_Reg(WRITE_REG + RX_PW_P0, RX_PLOAD_WIDTH); //设置接收数据长度，本次设置为32字节 SPI_RW_Reg(WRITE_REG + RF_SETUP, 0x07); //设置发射速率为1MHZ，发射功率为最大值0dB发送 } /********************************************** Function: SPI_RW(); Description: Writes one byte to nRF24L01, and return the byte read from nRF24L01 during write, according to SPI protocol /**********************************************/ uchar SPI_RW(uchar byte) { uchar bit_ctr; for(bit_ctr=0;bit_ctr<8;bit_ctr++) // output 8-bit { MOSI = (byte & 0x80); // output 'byte', MSB to MOSI byte = (byte << 1); // shift next bit into MSB.. SCK = 1; // Set SCK high.. byte \|= MISO; // capture current MISO bit SCK = 0; // ..then set SCK low again } return(byte); // return read byte } /**********************************************/ /********************************************** Function: SPI_RW_Reg(); Description: Writes value 'value' to register 'reg' /**********************************************/ uchar SPI_RW_Reg(BYTE reg, BYTE value) { uchar status; CSN = 0; // CSN low, init SPI transaction status = SPI_RW(reg); // select register SPI_RW(value); // ..and write value to it.. CSN = 1; // CSN high again return(status); // return nRF24L01 status byte } /**********************************************/ /********************************************** Function: SPI_Read(); Description: Read one byte from nRF24L01 register, 'reg' /**********************************************/ BYTE SPI_Read(BYTE reg) { BYTE reg_val; CSN = 0; // CSN low, initialize SPI communication... SPI_RW(reg); // Select register to read from.. reg_val = SPI_RW(0); // ..then read registervalue CSN = 1; // CSN high, terminate SPI communication return(reg_val); // return register value } /**********************************************/ /********************************************** Function: SPI_Read_Buf(); Description: /***********************************************/ uchar SPI_Read_Buf(BYTE reg, BYTE pBuf, BYTE bytes) { uchar status,byte_ctr; CSN = 0; // Set CSN low, init SPI tranaction status = SPI_RW(reg); // Select register to write to and read status byte for(byte_ctr=0;byte_ctr pBuf[byte_ctr] = SPI_RW(0); // CSN = 1; return(status); // return nRF24L01 status byte } /************************************************/ /************************************************ Function: SPI_Write_Buf(); Description: Writes contents of buffer 'pBuf' to nRF24L01 Typically used to write TX payload, Rx/Tx address /************************************************/ uchar SPI_Write_Buf(BYTE reg, BYTE pBuf, BYTE bytes) { uchar status,byte_ctr; CSN = 0; status = SPI_RW(reg); for(byte_ctr=0; byte_ctr SPI_RW(pBuf++); CSN = 1; return(status); } /***********************************************/ /********************************************** Function: RX_Mode(); Description: /**********************************************/ void SetRX_Mode(void) { CE=0; SPI_RW_Reg(WRITE_REG + CONFIG, 0x0f); // IRQ收发完成中断响应，16位CRC ，主接收 CE = 1; inerDelay_us(130); } /***********************************************/ unsigned char nRF24L01_RxPacket(unsigned char rx_buf) { unsigned char revale=0; sta=SPI_Read(STATUS); // 读取状态寄存其来判断数据接收状况 if(RX_DR) // 判断是否接收到数据 { LED3=0; CE = 0; //SPI使能 SPI_Read_Buf(RD_RX_PLOAD,rx_buf,TX_PLOAD_WIDTH);// read receive payload from RX_FIFO buffer revale =1; //读取数据完成标志 } SPI_RW_Reg(WRITE_REG+STATUS,sta); //接收到数据后RX_DR,TX_DS,MAX_PT都置高为1，通过写1来清楚中断标志 return revale; } /************************************************ Function: nRF24L01_TxPacket(); Description: This function initializes one nRF24L01 device to TX mode, set TX address, set RX address for auto.ack, fill TX payload, select RF channel, datarate & TX pwr. PWR_UP is set, CRC(2 bytes) is enabled, & PRIM:TX. ToDo: One high pulse(>10us) on CE will now send this packet and expext an acknowledgment from the RX device. /***********************************************/ void nRF24L01_TxPacket(unsigned char tx_buf) { CE=0; //StandBy I模式 SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, TX_ADDRESS, TX_ADR_WIDTH); // 装载接收端地址 SPI_Write_Buf(WR_TX_PLOAD, tx_buf, TX_PLOAD_WIDTH); // 装载数据 SPI_RW_Reg(WRITE_REG + CONFIG, 0x0e); // IRQ收发完成中断响应，16位CRC，主发送 CE=1; //置高CE，激发数据发送 LED1=0; LED2=0; inerDelay_us(10); } void Delay(unsigned int s) { unsigned int i; for(i=0; i for(i=0; i } void main(void) { unsigned char a; unsigned char leng =0; unsigned char tf =0; unsigned char TxBuf[20]={0}; // unsigned char RxBuf[20]={0}; init_io() ; while(1) { TxBuf[1] = 0x01; TxBuf[2] = 0x02; nRF24L01_TxPacket(TxBuf); // Transmit Tx buffer data TxBuf[1] = 0x00; TxBuf[2] = 0x00; Delay(1000); LED1 = 1; LED2 = 1; Delay(100000); } }

2015-1-18 09:16:27 评论举报 Supercm

答案对人有帮助，有参考价值 0 接收函数： #include #include //hard pin mapping *it MISO =P1^5; it MOSI =P1^4; it SCK =P1^3; it CE =P1^1; it CSN =P1^2; it IRQ =P1^6; it LED3 =P0^6; it LED2 =P0^5; it LED1 =P0^4; it KEY1 =P3^0; it KEY2 =P3^1; #define TX_ADR_WIDTH 5 // 5 bytes TX address width #define RX_ADR_WIDTH 5 // 5 bytes RX address width #define TX_PLOAD_WIDTH 20 // 20 bytes TX payload #define RX_PLOAD_WIDTH 20 // 20 bytes TX payload typedef unsigned char BYTE; typedef unsigned char uchar; //************************************************************// // SPI(nRF24L01) commands #define READ_REG 0x00 // Define read command to register #define WRITE_REG 0x20 // Define write command to register #define RD_RX_PLOAD 0x61 // Define RX payload register address #define WR_TX_PLOAD 0xA0 // Define TX payload register address #define FLUSH_TX 0xE1 // Define flush TX register command #define FLUSH_RX 0xE2 // Define flush RX register command #define REUSE_TX_PL 0xE3 // Define reuse TX payload register command #define NOP 0xFF // Define No Operation, might be used to read status register //***********************************************// // SPI(nRF24L01) registers(addresses) #define CONFIG 0x00 // 'Config' register address #define EN_AA 0x01 // 'Enable Auto Acknowledgment' register address #define EN_RXADDR 0x02 // 'Enabled RX addresses' register address #define SETUP_AW 0x03 // 'Setup address width' register address #define SETUP_RETR 0x04 // 'Setup Auto. Retrans' register address #define RF_CH 0x05 // 'RF channel' register address #define RF_SETUP 0x06 // 'RF setup' register address #define STATUS 0x07 // 'Status' register address #define OBSERVE_TX 0x08 // 'Observe TX' register address #define CD 0x09 // 'Carrier Detect' register address #define RX_ADDR_P0 0x0A // 'RX address pipe0' register address #define RX_ADDR_P1 0x0B // 'RX address pipe1' register address #define RX_ADDR_P2 0x0C // 'RX address pipe2' register address #define RX_ADDR_P3 0x0D // 'RX address pipe3' register address #define RX_ADDR_P4 0x0E // 'RX address pipe4' register address #define RX_ADDR_P5 0x0F // 'RX address pipe5' register address #define TX_ADDR 0x10 // 'TX address' register address #define RX_PW_P0 0x11 // 'RX payload width, pipe0' register address #define RX_PW_P1 0x12 // 'RX payload width, pipe1' register address #define RX_PW_P2 0x13 // 'RX payload width, pipe2' register address #define RX_PW_P3 0x14 // 'RX payload width, pipe3' register address #define RX_PW_P4 0x15 // 'RX payload width, pipe4' register address #define RX_PW_P5 0x16 // 'RX payload width, pipe5' register address #define FIFO_STATUS 0x17 // 'FIFO Status Register' register address //***********************************************************// // FUNCTION's PROTOTYPES // /*************************************************************/ // void SPI_Init(BYTE Mode); // Init HW or SW SPI BYTE SPI_RW(BYTE byte); // Single SPI read/write BYTE SPI_Read(BYTE reg); // Read one byte from nRF24L01 BYTE SPI_RW_Reg(BYTE reg, BYTE byte); // Write one byte to register 'reg' BYTE SPI_Write_Buf(BYTE reg, BYTE pBuf, BYTE bytes); // Writes multiply bytes to one register BYTE SPI_Read_Buf(BYTE reg, BYTE pBuf, BYTE bytes); // Read multiply bytes from one register //***************************************************************/ void inerDelay_us(unsigned char n); void init_io(void) ; void SetRX_Mode(void); unsigned char nRF24L01_RxPacket(unsigned char rx_buf); void nRF24L01_TxPacket(unsigned char * tx_buf); extern uchar const TX_ADDRESS[TX_ADR_WIDTH];//TX address extern uchar const RX_ADDRESS[RX_ADR_WIDTH];//;RX address uchar const TX_ADDRESS[TX_ADR_WIDTH] = {0x34,0x43,0x10,0x10,0x01}; // Define a static TX address uchar const RX_ADDRESS[RX_ADR_WIDTH] = {0x34,0x43,0x10,0x10,0x01}; // Define a static RX address uchar bdata sta; *it RX_DR =sta^6; it TX_DS =sta^5; it MAX_RT =sta^4; void inerDelay_us(unsigned char n) { for(;n>0;n--) _nop_(); } void init_io(void) { inerDelay_us(100); CE=0; // chip enable CSN=1; // Spi disable SCK=0; // Spi clock line init high SPI_Write_Buf(WRITE_REG + TX_ADDR, TX_ADDRESS, TX_ADR_WIDTH); // 写本地地址 SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, RX_ADDRESS, RX_ADR_WIDTH); // 写接收端地址 SPI_RW_Reg(WRITE_REG + EN_AA, 0x01); // 频道0自动 ACK应答允许 SPI_RW_Reg(WRITE_REG + EN_RXADDR, 0x01); // 允许接收地址只有频道0，如果需要多频道可以参考Page21 SPI_RW_Reg(WRITE_REG + RF_CH, 0); // 设置信道工作为2.4GHZ，收发必须一致 SPI_RW_Reg(WRITE_REG + RX_PW_P0, RX_PLOAD_WIDTH); //设置接收数据长度，本次设置为32字节 SPI_RW_Reg(WRITE_REG + RF_SETUP, 0x07); //设置发射速率为1MHZ，发射功率为最大值0dB SPI_RW_Reg(WRITE_REG + CONFIG, 0x0f); // IRQ收发完成中断响应，16位CRC ，主接收 } /********************************************** Function: SPI_RW(); Description: Writes one byte to nRF24L01, and return the byte read from nRF24L01 during write, according to SPI protocol /**********************************************/ uchar SPI_RW(uchar byte) { uchar bit_ctr; for(bit_ctr=0;bit_ctr<8;bit_ctr++) // output 8-bit { MOSI = (byte & 0x80); // output 'byte', MSB to MOSI byte = (byte << 1); // shift next bit into MSB.. SCK = 1; // Set SCK high.. byte \|= MISO; // capture current MISO bit SCK = 0; // ..then set SCK low again } return(byte); // return read byte } /**********************************************/ /********************************************** Function: SPI_RW_Reg(); Description: Writes value 'value' to register 'reg' /**********************************************/ uchar SPI_RW_Reg(BYTE reg, BYTE value) { uchar status; CSN = 0; // CSN low, init SPI transaction status = SPI_RW(reg); // select register SPI_RW(value); // ..and write value to it.. CSN = 1; // CSN high again return(status); // return nRF24L01 status byte } /**********************************************/ /********************************************** Function: SPI_Read(); Description: Read one byte from nRF24L01 register, 'reg' /**********************************************/ BYTE SPI_Read(BYTE reg) { BYTE reg_val; CSN = 0; // CSN low, initialize SPI communication... SPI_RW(reg); // Select register to read from.. reg_val = SPI_RW(0); // ..then read registervalue CSN = 1; // CSN high, terminate SPI communication return(reg_val); // return register value } /**********************************************/ /********************************************** Function: SPI_Read_Buf(); Description: /***********************************************/ uchar SPI_Read_Buf(BYTE reg, BYTE pBuf, BYTE bytes) { uchar status,byte_ctr; CSN = 0; // Set CSN low, init SPI tranaction status = SPI_RW(reg); // Select register to write to and read status byte for(byte_ctr=0;byte_ctr pBuf[byte_ctr] = SPI_RW(0); // CSN = 1; return(status); // return nRF24L01 status byte } /************************************************/ /************************************************ Function: SPI_Write_Buf(); Description: Writes contents of buffer 'pBuf' to nRF24L01 Typically used to write TX payload, Rx/Tx address /************************************************/ uchar SPI_Write_Buf(BYTE reg, BYTE pBuf, BYTE bytes) { uchar status,byte_ctr; CSN = 0; status = SPI_RW(reg); for(byte_ctr=0; byte_ctr SPI_RW(pBuf++); CSN = 1; // Set CSN high again return(status); // } /***********************************************/ /********************************************** Function: RX_Mode(); Description: /**********************************************/ void SetRX_Mode(void) { CE=0; inerDelay_us(130); SPI_RW_Reg(WRITE_REG + CONFIG, 0x0f); // IRQ收发完成中断响应，16位CRC ，主接收 CE = 1; inerDelay_us(130); } /***********************************************/ unsigned char nRF24L01_RxPacket(unsigned char rx_buf) { unsigned char revale=0; //SetRX_Mode(); sta=SPI_Read(STATUS); // read register STATUS's value LED3=0; if(RX_DR) // if receive data ready (RX_DR) interrupt { CE = 0; SPI_Read_Buf(RD_RX_PLOAD,rx_buf,TX_PLOAD_WIDTH);// read receive payload from RX_FIFO buffer revale =1;//we have receive data LED1=0; LED2=0; } SPI_RW_Reg(WRITE_REG+STATUS,sta);// clear RX_DR or TX_DS or MAX_RT interrupt flag return revale; } /************************************************ Function: nRF24L01_TxPacket(); Description: This function initializes one nRF24L01 device to TX mode, set TX address, set RX address for auto.ack, fill TX payload, select RF channel, datarate & TX pwr. PWR_UP is set, CRC(2 bytes) is enabled, & PRIM:TX. ToDo: One high pulse(>10us) on CE will now send this packet and expext an acknowledgment from the RX device. /***********************************************/ void nRF24L01_TxPacket(unsigned char tx_buf) { CE=0; //StandBy I模式 SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, TX_ADDRESS, TX_ADR_WIDTH); // 装载接收端地址 SPI_Write_Buf(WR_TX_PLOAD, tx_buf, TX_PLOAD_WIDTH); // 装载数据 SPI_RW_Reg(WRITE_REG + CONFIG, 0x0e); // IRQ收发完成中断响应，16位CRC，主发送 CE=1; //置高CE，激发数据发送 inerDelay_us(10); } void Delay(unsigned int s) { unsigned int i; for(i=0; i for(i=0; i } void initcom () { TMOD=0x20; PCON=0x00; SCON=0x50; TH1=0xFd;//波特率9600 TL1=0xFd; TR1=1; } void comm (int len) { SBUF=len; while(!TI); TI=0; } void main(void) { unsigned char a,b; unsigned char leng =0; unsigned char tf =0; unsigned char TxBuf[20]={0}; // unsigned char RxBuf[20]={0}; init_io() ; initcom (); while(1) { SetRX_Mode(); if(nRF24L01_RxPacket(RxBuf)) { comm(RxBuf[1]); comm(RxBuf[2]); Delay(1000); LED1=1; LED2=1; } RxBuf[1] = 0x00; RxBuf[2] = 0x00; a=SPI_Read(); comm(a); //串口一直显示STATUS是0x0f } }

2015-1-18 09:17:50 评论举报 Supercm

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