無線收發器　itead arduino 2.4G無線模塊 RF數傳通信模塊配套資料

ID:124161 · 發表于 2016-6-6 10:31

NRF24L01是一款工作在2.4-2.5GHz世界通用ISM頻段的單片收發芯片，無線收發器包括：頻率發生器增強型 SchockBurstTM 模式控制器功率放大器晶體放大器調制器解調器輸出功率頻道選擇和協議的設置可以通過SPI接口進行設置極低的電流消耗，當工作在發射模式下發射功率為6dBm時電流消耗為9.0mA 接受模式為12.3mA掉電模式和待機模式下電流消耗模式更低。

球開放ISM 頻段，最大0dBm 發射功率，免許可證使用�？諘�100米！支持六路通道的數據接收

特性如下：

1.低工作電壓：1.9～3.6V低電壓工作

2.高速率：2Mbps，由于空中傳輸時間很短，極大的降低了無線傳輸中的碰撞現象（軟件設置1Mbps或者2Mbps的空中傳輸速率）

3.多頻點：125 頻點，滿足多點通信和跳頻通信需要

4.超小型：內置2.4GHz天線，體積小巧，15x29mm（包括天線）

5.低功耗：當工作在應答模式通信時，快速的空中傳輸及啟動時間，極大的降低了電流消耗。

6.低應用成本：NRF24L01集成了所有與RF協議相關的高速信號處理部分，比如：自動重發丟失數據包和自動產生應答信號等，NRF24L01的SPI接口可以利用單片機的硬件SPI口連接或用單片機I/O口進行模擬，內部有FIFO可以與各種高低速微處理器接口，便于使用低成本單片機。

7.便于開發：由于鏈路層完全集成在模塊上，非常便于開發。自動重發功能，自動檢測和重發丟失的數據包，重發時間及重發次數可軟件控制自動存儲未收到應答信號的數據包自動應答功能，在收到有效數據后，模塊自動發送應答信號，無須另行編程載波檢測—固定頻率檢測內置硬件CRC 檢錯和點對多點通信地址控制數據包傳輸錯誤計數器及載波檢測功能可用于跳頻設置可同時設置六路接收通道地址，可有選擇性的打開接收通道標準插針Dip2.54MM間距接口，便于嵌入式應用

原代碼：

/****************************************/
/* nRF24L01_SPI通信程序
連線方式：
IOB0---》CE （7腳）
IOB1---》CSN （6腳）
IOB2---》SCK （5腳）
IOB3---》MOSI （4腳）
IOB4---》MISO （3腳）
IOB5---》IRQ （2腳）
*/
/****************************************/
#include "SPCE061V004.H"
//#include "LCD.h"
#define MISO *P_IOB_Data
#define uchar unsigned char
#define MOSI_High *P_IOB_Data|=0x0008
#define MOSI_Low *P_IOB_Data&=0xfff7
#define SCK_High *P_IOB_Data|=0x0004
#define SCK_Low *P_IOB_Data&=0xfffb
#define CE_High *P_IOB_Data|=0x0001
#define CE_Low *P_IOB_Data&=0xfffe
#define CSN_High *P_IOB_Data|=0x0002
#define CSN_Low *P_IOB_Data&=0xfffd
#define TX_ADR_WIDTH 5 // 5 bytes TX(RX) address width
#define TX_PLOAD_WIDTH 20 // 20 bytes TX payload
#define RX_DS sta&0x40 // RX_DR=sta^6;
#define TX_DS sta&0x20 // TX_DS =sta^5;
#define MAX_RT sta&0x10 // MAX_RT =sta^4;
// 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
unsigned char Buffer[5]={"0","3","4","5","8"};
unsigned char const TX_ADDRESS[TX_ADR_WIDTH] = {0x34,0x43,0x10,0x10,0x01}; // Define a static TX address
unsigned char SPI_ReceiveData;
unsigned char RX[16];
unsigned char Tx_Buffer[5]={"abc"};
void Initial_IOB() //初始化IOB端口
{
*P_IOB_Dir=0xffcf; //set IRQ,MISO input ,the other output
*P_IOB_Attrib=0xffcf;
*P_IOB_Data=0x0000;
}
void delay1us(unsigned char t)
{
while(--t)
*P_Watchdog_Clear=1;
}
unsigned char SPI_RW(unsigned char byte) //寫一個字節到24L01，同時讀一個字節
{
unsigned char bit_ctr;
for(bit_ctr=0;bit_ctr<8;bit_ctr++) //output 8-bit
{
if(byte&0x80)
MOSI_High;
else
MOSI_Low;
byte=(byte<<1);
SCK_High;
if(MISO&0x0010) byte |= 1; //SPI_ReceiveData=MISO;
SCK_Low;
// SPI_ReceiveData =( SPI_ReceiveData<<1);
}
return(byte); //return read byte
}
unsigned char SPI_Read(unsigned char reg)
{
unsigned char reg_val;
CSN_Low; // CSN low, initialize SPI communication...
SPI_RW(reg); // Select register to read from..
reg_val = SPI_RW(0); // ..then read registervalue
CSN_High; // CSN high, terminate SPI communication
return(reg_val); // return register value
}
/****向寄存器reg寫一個字節，同時返回狀態字節**************/
unsigned char SPI_RW_Reg(unsigned char reg,unsigned char value)
{
unsigned char status;
CSN_Low;
status=SPI_RW(reg); //select register and write value to it
SPI_RW(value);
CSN_High;
return(status);
}
/********讀出bytes字節的數據*************************/
unsigned char SPI_Read_Buf(uchar reg,uchar *pBuf,uchar bytes)
{
uchar status,byte_ctr;
CSN_Low;
status=SPI_RW(reg);
for(byte_ctr=0;byte_ctr<bytes;byte_ctr++)
pBuf[byte_ctr]=SPI_RW(0);
CSN_High;
return(status);
}
/****************寫入bytes字節的數據*******************/
unsigned char SPI_Write_Buf(uchar reg,uchar *pBuf,uchar bytes)
{
uchar status,byte_ctr;
CSN_Low;
delay1us(1);
status=SPI_RW(reg);
for(byte_ctr=0;byte_ctr<bytes;byte_ctr++)
SPI_RW(*pBuf++);
CSN_High;
delay1us(1);
return(status);
}
/*接收函數，返回1表示有數據收到，否則沒有數據接收到**/
unsigned char nRF24L01_RxPacket(unsigned char *rx_buf)
{
unsigned char sta,revale=0;
SPI_RW_Reg(WRITE_REG + CONFIG, 0x0f);
CE_High;
delay1us(10);
sta=SPI_Read(STATUS); // read register STATUS's value
if(RX_DS) // if receive data ready (RX_DR) interrupt
{
CE_Low; // stand by mode
SPI_Read_Buf(RD_RX_PLOAD,rx_buf,WR_TX_PLOAD); // read receive payload from RX_FIFO buffer
revale =1;
}
SPI_RW_Reg(WRITE_REG+STATUS,sta); // clear RX_DR or TX_DS or MAX_RT interrupt flag
return revale;
}
/****************發送函數***************************/
void nRF24L01_TxPacket(unsigned char *tx_buf)
{
CE_Low; // CE=0;
SPI_Write_Buf(WRITE_REG + TX_ADDR, TX_ADDRESS, TX_ADR_WIDTH); // WritesTX_Address to nRF24L01
SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, TX_ADDRESS, TX_ADR_WIDTH); //RX_Addr0 same as TX_Adr for Auto.Ack
SPI_Write_Buf(WR_TX_PLOAD, tx_buf, TX_PLOAD_WIDTH); // Writes data to TX payload
SPI_RW_Reg(WRITE_REG + CONFIG, 0x0e); // Set PWR_UP bit, enable CRC(2 bytes) &Prim:TX. MAX_RT & TX_DS enabled..
CE_High; //CE=1;
delay1us(10);
CE_Low; //CE=0;
}
void RX_Mode(void)
{
CE_Low; //CE=0;
delay1us(1);
SPI_Write_Buf(WRITE_REG + TX_ADDR, TX_ADDRESS, TX_ADR_WIDTH); // Writes TX_Address to nRF24L01
SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, TX_ADDRESS, TX_ADR_WIDTH); // RX_Addr0 same as TX_Adr for Auto.Ack
SPI_Write_Buf(WR_TX_PLOAD, Buffer, TX_PLOAD_WIDTH); // Writes data to TX payload
SPI_RW_Reg(WRITE_REG + EN_AA, 0x01); // Enable Auto.Ack:Pipe0
SPI_RW_Reg(WRITE_REG + EN_RXADDR, 0x01); // Enable Pipe0
SPI_RW_Reg(WRITE_REG + SETUP_RETR, 0x1a); // 500us + 86us, 10 retrans...
SPI_RW_Reg(WRITE_REG + RF_CH, 40); // Select RF channel 40
SPI_RW_Reg(WRITE_REG + RF_SETUP, 0x07); // TX_PWR:0dBm, Datarate:2Mbps, LNA:HCURR
SPI_RW_Reg(WRITE_REG + CONFIG, 0x0e); // Set PWR_UP bit, enable CRC(2 bytes) & Prim:TX. MAX_RT & TX_DS enabled..
CE_High; //CE = 1 Set CE pin high to enable RX device
delay1us(1);
// This device is now ready to receive one packet of 16 bytes payload from a TX device sending to address
// '3443101001', with auto acknowledgment, retransmit count of 10, RF channel 40 and datarate = 2Mbps.
}
void TX_Mode(void)
{
CE_Low; //CE=0;
delay1us(1);
SPI_Write_Buf(WRITE_REG + TX_ADDR, TX_ADDRESS, TX_ADR_WIDTH); // Writes TX_Address to nRF24L01
SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, TX_ADDRESS, TX_ADR_WIDTH); // RX_Addr0 same as TX_Adr for Auto.Ack
SPI_Write_Buf(WR_TX_PLOAD,Tx_Buffer, TX_PLOAD_WIDTH); // Writes data to TX payload
SPI_RW_Reg(WRITE_REG + EN_AA, 0x01); // Enable Auto.Ack:Pipe0
SPI_RW_Reg(WRITE_REG + EN_RXADDR, 0x01); // Enable Pipe0
SPI_RW_Reg(WRITE_REG + SETUP_RETR, 0x1a); // 500us + 86us, 10 retrans...
SPI_RW_Reg(WRITE_REG + RF_CH, 40); // Select RF channel 40
SPI_RW_Reg(WRITE_REG + RF_SETUP, 0x07); // TX_PWR:0dBm, Datarate:2Mbps, LNA:HCURR
SPI_RW_Reg(WRITE_REG + CONFIG, 0x0e); // Set PWR_UP bit, enable CRC(2 bytes) & Prim:TX. MAX_RT & TX_DS enabled..
CE_High; // CE=1;
delay1us(1);
}
void nRF24L01_Initial(void)
{
CE_Low; //nRF24L01_CE=0; chip enable
CSN_High; //nRF24L01_CSN=1; Spi disable
SCK_Low; //nRF24L01_SCK=0; Spi clock line init high
}
/****************** 配置函數********************************/
void nRF24L01_Config(void)
{
//initial io
CE_Low; // CE=0 ;chip enable
CSN_High; //CSN=1 Spi disable
SCK_Low; //SCK=0 // Spi clock line init high
CE_Low; //CE=0;
SPI_RW_Reg(WRITE_REG + CONFIG, 0x0f); // Set PWR_UP bit, enable CRC(2 bytes) &Prim:RX. RX_DR enabled..
SPI_RW_Reg(WRITE_REG + EN_AA, 0x01);
SPI_RW_Reg(WRITE_REG + EN_RXADDR, 0x01); // Enable Pipe0
SPI_RW_Reg(WRITE_REG + SETUP_AW, 0x02); // Setup address width=5 bytes
SPI_RW_Reg(WRITE_REG + SETUP_RETR, 0x1a); // 500us + 86us, 10 retrans...
SPI_RW_Reg(WRITE_REG + RF_CH, 0);
SPI_RW_Reg(WRITE_REG + RF_SETUP,0x0f); // TX_PWR:0dBm, Datarate:2Mbps,
}
main()
{
int a;
Initial_IOB();
nRF24L01_Initial();
TX_Mode();
// RX_Mode();
while(1)
{
//自己添加要發送的內容到數組里
/// nRF24L01_TxPacket(*****)
delay1us(100);
*P_Watchdog_Clear=1;
}
}

復制代碼

全部資料（壓縮包）下載：

ID:112693 · 發表于 2016-6-6 12:52

經典，參考了，謝謝樓主

帳號		自動登錄	找回密碼
密碼			立即注冊

久久久久久久999_99精品久久精品一区二区爱城_成人欧美一区二区三区在线播放_国产精品日本一区二区不卡视频_国产午夜视频_欧美精品在线观看免费

無線收發器 itead arduino 2.4G無線模塊 RF數傳通信模塊配套資料

無線收發器　itead arduino 2.4G無線模塊 RF數傳通信模塊配套資料