NRF24L01收发测试程序

来源：互联网发布：windows vista 镜像编辑：程序博客网时间：2024/05/21 17:34

调试好了NRF24L01的程序，前几天一直接收不到，今天发现是寄存器设置错误，更新最新调试好的程序：

接收：

#include "include.h"unsigned char sta;  // 状态变量     unsigned char rx_dr_flag;//接收成功标志位#define RX_DR (sta & 0x40)  // 接收成功中断标志#define TX_DS (sta & 0x20)  // 发射成功中断标志#define MAX_RT (sta & 0x10) // 重发溢出中断标志sbit IRQ = P0^0;sbit MISO = P0^1;sbit MOSI = P0^2;sbit SCK = P0^3;sbit CSN = P0^4;sbit CE = P0^5;unsigned char const TX_ADDRESS[TX_ADR_WIDTH]= {0x34,0x43,0x10,0x10,0x01};//接收地址unsigned char const RX_ADDRESS[RX_ADR_WIDTH]= {0x34,0x43,0x10,0x10,0x01};//本地地址/********************************************************************************** 函数名称：void Init_io(void)** 功    能：初始化io口** 调用清单：无** 参    数：1)无** 返 回 值：无** 注    意：1) *           2) *********************************************************************************/void Init_NRF24L01(void){CE  = 0;        // 待机CSN = 1;        // SPI禁止SCK = 0;        // SPI时钟置低IRQ = 1;        // 中断复位}/********************************************************************************** 函数名称：unsigned char SPI_RW(unsigned char byte)    ** 功    能：写时序** 调用清单：无** 参    数：1)byte: 写入的数据** 返 回 值：byte** 注    意：1) *           2) *********************************************************************************/unsigned char SPI_RW(unsigned char byte){    unsigned char bit_ctr;for(bit_ctr = 0; bit_ctr < 8; bit_ctr++)    {    MOSI = (0x80 & byte);        byte <<= 1;        SCK = 1;byte |= MISO;SCK = 0;      }return (byte);}/********************************************************************************** 函数名称：unsigned char SPI_RW_Reg(unsigned char reg, unsigned char value)    ** 功    能：设置寄存器的值** 调用清单：1)unsigned char SPI_RW(unsigned char byte)** 参    数：1)reg  : 待设置寄存器地址            2)value: 设置寄存器的值** 返 回 值：status** 注    意：1) *           2) *********************************************************************************/unsigned char SPI_RW_Reg(unsigned char reg, unsigned char value){    unsigned char status;    CSN = 0;    status = SPI_RW(reg);    SPI_RW(value);    CSN = 1;    return (status);}/********************************************************************************** 函数名称：unsigned char SPI_Read(unsigned char reg)** 功    能：读取寄存器中的值** 调用清单：1)unsigned char SPI_RW(unsigned char byte)** 参    数：1)reg: 待读取寄存器的地址** 返 回 值：1)reg_val: 读取的值** 注    意：1) *           2) *********************************************************************************/unsigned char SPI_Read(unsigned char reg){    unsigned char reg_val;    CSN = 0;    SPI_RW(reg);    reg_val = SPI_RW(0);    CSN = 1;    return (reg_val);}/********************************************************************************** 函数名称：unsigned char SPI_Read_Buf(unsigned char reg, unsigned char *pBuf, unsigned char bytes)** 功    能：在接收时读取FIFO缓冲区中的值** 调用清单：1)unsigned char SPI_RW(unsigned char byte)** 参    数：1)reg  : 寄存器地址            2)pBuf : 待读取的数据地址            3)bytes: 读出数据的个数** 返 回 值：status: 寄存器状态** 注    意：1) *           2) *********************************************************************************/unsigned char SPI_Read_Buf(unsigned char reg, unsigned char *pBuf, unsigned char bytes){    unsigned char status;    unsigned char byte_ctr;    CSN = 0;    status = SPI_RW(reg);    for(byte_ctr = 0; byte_ctr < bytes; byte_ctr++)    {        pBuf[byte_ctr] = SPI_RW(0);    }    CSN = 1;    return (status);}/********************************************************************************** 函数名称：unsigned char SPI_Write_Buf(unsigned char reg, unsigned char *pBuf, unsigned char bytes)** 功    能: 把数组里的数放到发射FIFO缓冲区中去** 调用清单：1)unsigned char SPI_RW(unsigned char byte)** 参    数：1)reg  : 寄存器地址            2)pBuf : 待写入数据地址            3)bytes: 读出字节的个数** 返 回 值：status: 寄存器状态** 注    意：1) *           2) *********************************************************************************/unsigned char SPI_Write_Buf(unsigned char reg, unsigned char *pBuf, unsigned char bytes){    unsigned char status;    unsigned char byte_ctr;    CSN = 0;    status = SPI_RW(reg);    Delay_Us(10);    for(byte_ctr = 0; byte_ctr < bytes; byte_ctr++)    {        SPI_RW(*pBuf++);    }    CSN = 1;    return (status);}/********************************************************************************** 函数名称：void RX_Mode(void)** 功    能：设置NRF24L01为接收方式** 调用清单：1)unsigned char SPI_Write_Buf(unsigned char reg, unsigned char *pBuf, unsigned char bytes)*2)unsigned char SPI_RW_Reg(unsigned char reg, unsigned char value)* 参    数：无** 返 回 值：无** 注    意：1)  *           2) *********************************************************************************/#if 1void RX_Mode(void){    CE = 0;    SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, TX_ADDRESS, TX_ADR_WIDTH);    SPI_RW_Reg(WRITE_REG + EN_AA, 0x01);    SPI_RW_Reg(WRITE_REG + EN_RXADDR, 0x01);    SPI_RW_Reg(WRITE_REG + RF_CH, 40);    SPI_RW_Reg(WRITE_REG + RX_PW_P0, TX_PLOAD_WIDTH);    SPI_RW_Reg(WRITE_REG + RF_SETUP, 0x07);    SPI_RW_Reg(WRITE_REG + CONFIG, 0x0f);    CE = 1;    Delay_Us(130);}#endif/********************************************************************************** 函数名称：void TX_Mode(void)** 功    能：设置NRF24L01为发射方式** 调用清单：1)unsigned char SPI_Write_Buf(unsigned char reg, unsigned char *pBuf, unsigned char bytes)*2)unsigned char SPI_RW_Reg(unsigned char reg, unsigned char value)* 参    数：无** 返 回 值：无** 注    意：1)  *           2) *********************************************************************************///void TX_Mode(unsigned char *tx_data)//{//    CE = 0;    //待机//    SPI_Write_Buf(WRITE_REG + TX_ADDR, TX_ADDRESS, TX_ADR_WIDTH);       //写寄存器指令 + 接收节电地址 + 地址宽度//    SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, TX_ADDRESS, TX_ADR_WIDTH);    //为了接收设备应答信号，接收通道0地址与发送地址相同//    SPI_Write_Buf(TX_PLOAD_WIDTH, tx_data, TX_ADR_WIDTH);      //写有效数据地址 + 有效数据 + 有效数据宽度////  SPI_RW_Reg(WRITE_REG + EN_AA, 0x01);       // 使能接收通道0自动应答//  SPI_RW_Reg(WRITE_REG + EN_RXADDR, 0x01);   // 使能接收通道0//  SPI_RW_Reg(WRITE_REG + SETUP_RETR, 0x0a);  // 自动重发延时等待250us+86us，自动重发10次//  SPI_RW_Reg(WRITE_REG + RF_CH, 40);         // 选择射频通道0x40 (2.4G HZ)//  SPI_RW_Reg(WRITE_REG + RF_SETUP, 0x07);    // 数据传输率1Mbps，发射功率0dBm，低噪声放大器增益//  SPI_RW_Reg(WRITE_REG + CONFIG, 0x0e);      // CRC使能，16位CRC校验，上电//    CE = 1;         //启动发射//    Delay_Ms(1);    //CE高电平持续事件最少10us以上//}//unsigned char Check_ACK(void)//{//while(IRQ);//sta = SPI_RW(NOP);                    // 返回状态寄存器//if(MAX_RT || TX_DS)//    {//    SPI_RW_Reg(WRITE_REG + STATUS, sta);  // 清除TX_DS或MAX_RT中断标志//        CSN = 0;//        SPI_RW(FLUSH_TX);//        CSN = 1;////        return 0x00;//    }////    return 0xff;//}/******************************************************************************************************//*函数：unsigned char nRF24L01_RxPacket(unsigned char* rx_buf)/*功能：数据读取后放如rx_buf接收缓冲区中/******************************************************************************************************/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{    rx_dr_flag = 1;     //成功接受数据置1        CE = 0; //SPI使能SPI_Read_Buf(RD_RX_PLOAD,rx_buf,TX_PLOAD_WIDTH);// read receive payload from RX_FIFO bufferrevale =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;}

#include "include.h"extern unsigned char rx_dr_flag;/********************************************************************************** 主函数*********************************************************************************/void main(){    unsigned char i;    unsigned char RX_Buf[20] = {0};    Init_NRF24L01();    i = 0;    while(1)    {        RX_Mode();        nRF24L01_RxPacket(&RX_Buf[i]);        Delay_Ms(2);        if(rx_dr_flag)//接收一次数据，为P1赋值一次        {            P1 = RX_Buf[i];            i++;            if(8 == i)            {                i = 0;            }            rx_dr_flag = 0;   //赋值之后清空标志位        }    }   }

发送：

#include "include.h"unsigned char giv_status;  // 状态变量#define RX_DR (giv_status & 0x40)  // 接收成功中断标志#define TX_DS (giv_status & 0x20)  // 发射成功中断标志#define MAX_RT (giv_status & 0x10) // 重发溢出中断标志sbit IRQ = P0^0;sbit MISO = P0^1;sbit MOSI = P0^2;sbit SCK = P0^3;sbit CSN = P0^4;sbit CE = P0^5;unsigned char const TX_ADDRESS[TX_ADR_WIDTH]= {0x34,0x43,0x10,0x10,0x01};//接收地址unsigned char const RX_ADDRESS[RX_ADR_WIDTH]= {0x34,0x43,0x10,0x10,0x01};//本地地址/********************************************************************************** 函数名称：void Init_io(void)** 功    能：初始化io口** 调用清单：无** 参    数：1)无** 返 回 值：无** 注    意：1) *           2) *********************************************************************************/void Init_NRF24L01(void){CE  = 0;        // 待机CSN = 1;        // SPI禁止SCK = 0;        // SPI时钟置低IRQ = 1;        // 中断复位}/********************************************************************************** 函数名称：unsigned char SPI_RW(unsigned char byte)    ** 功    能：写时序** 调用清单：无** 参    数：1)byte: 写入的数据** 返 回 值：byte** 注    意：1) *           2) *********************************************************************************/unsigned char SPI_RW(unsigned char byte){    unsigned char bit_ctr;for(bit_ctr = 0; bit_ctr < 8; bit_ctr++)    {    MOSI = (0x80 & byte);        byte <<= 1;        SCK = 1;byte |= MISO;SCK = 0;      }return (byte);}/********************************************************************************** 函数名称：unsigned char SPI_RW_Reg(unsigned char reg, unsigned char value)    ** 功    能：设置寄存器的值** 调用清单：1)unsigned char SPI_RW(unsigned char byte)** 参    数：1)reg  : 待设置寄存器地址            2)value: 设置寄存器的值** 返 回 值：status** 注    意：1) *           2) *********************************************************************************/unsigned char SPI_RW_Reg(unsigned char reg, unsigned char value){    unsigned char status;    CSN = 0;    status = SPI_RW(reg);    SPI_RW(value);    CSN = 1;    return (status);}/********************************************************************************** 函数名称：unsigned char SPI_Read(unsigned char reg)** 功    能：读取寄存器中的值** 调用清单：1)unsigned char SPI_RW(unsigned char byte)** 参    数：1)reg: 待读取寄存器的地址** 返 回 值：1)reg_val: 读取的值** 注    意：1) *           2) *********************************************************************************/unsigned char SPI_Read(unsigned char reg){    unsigned char reg_val;    CSN = 0;    SPI_RW(reg);    reg_val = SPI_RW(0);    CSN = 1;    return (reg_val);}/********************************************************************************** 函数名称：unsigned char SPI_Read_Buf(unsigned char reg, unsigned char *pBuf, unsigned char bytes)** 功    能：在接收时读取FIFO缓冲区中的值** 调用清单：1)unsigned char SPI_RW(unsigned char byte)** 参    数：1)reg  : 寄存器地址            2)pBuf : 待读取的数据地址            3)bytes: 读出数据的个数** 返 回 值：status: 寄存器状态** 注    意：1) *           2) *********************************************************************************///unsigned char SPI_Read_Buf(unsigned char reg, unsigned char *pBuf, unsigned char bytes)//{//    unsigned char status;//    unsigned char byte_ctr;////    CSN = 0;//    status = SPI_RW(reg);//    for(byte_ctr = 0; byte_ctr < bytes; byte_ctr++)//    {//        pBuf[byte_ctr] = SPI_RW(0);//    }//    CSN = 1;////    return (status);//}/********************************************************************************** 函数名称：unsigned char SPI_Write_Buf(unsigned char reg, unsigned char *pBuf, unsigned char bytes)** 功    能: 把数组里的数放到发射FIFO缓冲区中去** 调用清单：1)unsigned char SPI_RW(unsigned char byte)** 参    数：1)reg  : 寄存器地址            2)pBuf : 待写入数据地址            3)bytes: 读出字节的个数** 返 回 值：status: 寄存器状态** 注    意：1) *           2) *********************************************************************************/unsigned char SPI_Write_Buf(unsigned char reg, unsigned char *pBuf, unsigned char bytes){    unsigned char status;    unsigned char byte_ctr;    CSN = 0;    status = SPI_RW(reg);    Delay_Us(10);    for(byte_ctr = 0; byte_ctr < bytes; byte_ctr++)    {        SPI_RW(*pBuf++);    }    CSN = 1;    return (status);}/********************************************************************************** 函数名称：void RX_Mode(void)** 功    能：设置NRF24L01为接收方式** 调用清单：1)unsigned char SPI_Write_Buf(unsigned char reg, unsigned char *pBuf, unsigned char bytes)*2)unsigned char SPI_RW_Reg(unsigned char reg, unsigned char value)* 参    数：无** 返 回 值：无** 注    意：1)  *           2) *********************************************************************************/#if 0void RX_Mode(void){    CE = 0;    SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, TX_ADDRESS, TX_ADR_WIDTH);    SPI_RW_Reg(WRITE_REG + EN_AA, 0x01);    SPI_RW_Reg(WRITE_REG + EN_RXADDR, 0x01);    SPI_RW_Reg(WRITE_REG + RF_CH, 40);    SPI_RW_Reg(WRITE_REG + RX_PW_P0, TX_PLOAD_WIDTH);    SPI_RW_Reg(WRITE_REG + RF_SETUP, 0x07);    SPI_RW_Reg(WRITE_REG + CONFIG, 0x0f);    CE = 1;}#endif/********************************************************************************** 函数名称：void TX_Mode(void)** 功    能：设置NRF24L01为发射方式** 调用清单：1)unsigned char SPI_Write_Buf(unsigned char reg, unsigned char *pBuf, unsigned char bytes)*2)unsigned char SPI_RW_Reg(unsigned char reg, unsigned char value)* 参    数：无** 返 回 值：无** 注    意：1)  *           2) *********************************************************************************/void TX_Mode(unsigned char *tx_data){    CE = 0;    //待机    SPI_Write_Buf(WRITE_REG + TX_ADDR, TX_ADDRESS, TX_ADR_WIDTH);       //写寄存器指令 + 接收节电地址 + 地址宽度    SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, TX_ADDRESS, TX_ADR_WIDTH);    //为了接收设备应答信号，接收通道0地址与发送地址相同    SPI_Write_Buf(WR_TX_PLOAD, tx_data, TX_ADR_WIDTH);      //写有效数据地址 + 有效数据 + 有效数据宽度  SPI_RW_Reg(WRITE_REG + EN_AA, 0x01);       // 使能接收通道0自动应答  SPI_RW_Reg(WRITE_REG + EN_RXADDR, 0x01);   // 使能接收通道0  SPI_RW_Reg(WRITE_REG + SETUP_RETR, 0x0a);  // 自动重发延时等待250us+86us，自动重发10次  SPI_RW_Reg(WRITE_REG + RF_CH, 40);         // 选择射频通道0x40 (2.4G HZ)  SPI_RW_Reg(WRITE_REG + RF_SETUP, 0x07);    // 数据传输率1Mbps，发射功率0dBm，低噪声放大器增益  SPI_RW_Reg(WRITE_REG + CONFIG, 0x0e);      // CRC使能，16位CRC校验，上电    CE = 1;         //启动发射    Delay_Ms(1);    //CE高电平持续事件最少10us以上}//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//    Delay_Us(10);//}unsigned char Check_ACK(void){while(IRQ);giv_status = SPI_RW(NOP);                    // 返回状态寄存器if(MAX_RT || TX_DS)    {    SPI_RW_Reg(WRITE_REG + STATUS, giv_status);  // 清除TX_DS或MAX_RT中断标志        CSN = 0;        SPI_RW(FLUSH_TX);        CSN = 1;        IRQ = 1;        return 0x00;    }    IRQ = 1;    return 0xff;}

#include "include.h"sbit led = P1^0;/********************************************************************************** 主函数*********************************************************************************/void main(){    unsigned char i;    unsigned char TX_Buf[8] = {0xfe, 0xfd, 0xfb, 0xf7, 0xef, 0xdf, 0xbf, 0x7f};                                     //1111 1110, 1111 1101, 1111 1011, 1111 0111,                                      //1110 1111, 1101 1111, 1011 1111, 0111 1111    Init_NRF24L01();    while(1)    {        for(i = 0; i < 8; i++)        {            TX_Mode(&TX_Buf[i]);            while(Check_ACK());            led = ~led;            Delay_S(1);        }        i = 0;    }   }

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