基本够用了~自己领悟吧~以后经常半夜**叫~~~

2万 · 2007-8-22 02:55

应网友要求,现在才发布,望谅解~~~

转帖必须注明在21ic双龙处."作者是倒塌的菜农"

哈哈~~~又是半夜**叫了~~~

2万 · 2007-8-22 02:56

/*---------------------------------------------------------------------------------
        nRF905头文件(IAR AVR)
HotPower@126.com   2007.6.1 于西安大雁塔菜地 http://www.**/blog/hotpower/
---------------------------------------------------------------------------------*/
#define RX_ADDRESS           0x00000000               //接收有效地址(本方)
#define TX_ADDRESS           0x12345678               //发送有效地址(对方)

#define CH_NO_FREQ_422_4MHz  0x000                     //工作频率422.4MHz(433MHz频段最低频率)
#define CH_NO_FREQ_422_5MHz  0x001                     //工作频率422.5MHz
#define CH_NO_FREQ_425_0MHz  0x01a                     //工作频率425.0MHz
#define CH_NO_FREQ_427_5MHz  0x033                     //工作频率427.5MHz

#define CH_NO_FREQ_430_0MHz  0x04c                     //工作频率430.0MHz
#define CH_NO_FREQ_433_0MHz  0x06a                     //工作频率433.0MHz(433MHz频段基准频率)
#define CH_NO_FREQ_433_1MHz  0x06b                     //工作频率433.1MHz
#define CH_NO_FREQ_433_2MHz  0x06c                     //工作频率433.2MHz
#define CH_NO_FREQ_434_7MHz  0x07b                     //工作频率434.7MHz
#define CH_NO_FREQ_473_5MHz  0x1ff                     //工作频率473.5MHz(433MHz频段最高频率)

#define CH_NO_FREQ_844_8MHz  0x000                     //工作频率844.8MHz(868MHz频段最低频率)

#define CH_NO_FREQ_862_0MHz  0x056                     //工作频率862.0MHz
#define CH_NO_FREQ_868_0MHz  0x074                     //工作频率868.0MHz(868MHz频段基准频率)
#define CH_NO_FREQ_868_2MHz  0x075                     //工作频率868.2MHz
#define CH_NO_FREQ_868_4MHz  0x076                     //工作频率868.4MHz
#define CH_NO_FREQ_869_8MHz  0x07d                     //工作频率869.8MHz
#define CH_NO_FREQ_895_8MHz  0x0ff                     //工作频率895.8MHz
#define CH_NO_FREQ_896_0MHz  0x100                     //工作频率896.0MHz
#define CH_NO_FREQ_900_0MHz  0x114                     //工作频率900.0MHz
#define CH_NO_FREQ_902_2MHz  0x11f                     //工作频率902.2MHz
#define CH_NO_FREQ_902_4MHz  0x120                     //工作频率902.4MHz
#define CH_NO_FREQ_915_0MHz  0x15f                     //工作频率915.0MHz(915MHz频段基准频率)
#define CH_NO_FREQ_927_8MHz  0x19f                     //工作频率927.8MHz

#define CH_NO_FREQ_947_0MHz  0x1ff                     //工作频率947.0MHz(915MHz频段最高频率)

#define CH_NO_FREQ           CH_NO_FREQ_433_0MHz       //工作频率433.0MHz

#define CH_NO_BYTE           CH_NO_FREQ & 0xff         //工作频率低8位       Byte0       01101100

#define AUTO_RETRAN          0x20                      //重发数据包          Byte1.5     0
#define RX_RED_PWR           0x10                      //接收低功耗模式      Byte1.4     0
#define PA_PWR__10dBm        0x00                      //输出功率-10dBm      Byte1.3~2   00
#define PA_PWR_2dBm          0x04                      //输出功率+2dBm       Byte1.3~2
#define PA_PWR_6dBm          0x08                      //输出功率+6dBm       Byte1.3~2
#define PA_PWR_10dBm         0x0c                      //输出功率+10dBm      Byte1.3~2
#define HFREQ_PLL_433MHz     0x00                      //工作在433MHz频段    Byte1.1     0
#define HFREQ_PLL_868MHz     0x02                      //工作在868MHz频段    Byte1.1
#define HFREQ_PLL_915MHz     0x02                      //工作在915MHz频段    Byte1.1
#define CH_NO_BIT8           CH_NO_FREQ >> 8           //工作频率第9位       Byte1.0     0

#define TX_AFW_1BYTE         1 * 16                    //发送地址宽度1字节   Byte2.7~4
#define TX_AFW_2BYTE         2 * 16                    //发送地址宽度2字节   Byte2.7~4
#define TX_AFW_3BYTE         3 * 16                    //发送地址宽度3字节   Byte2.7~4
#define TX_AFW_4BYTE         4 * 16                    //发送地址宽度4字节   Byte2.7~4   100
#define RX_AFW_1BYTE         1                         //接收地址宽度1字节   Byte2.3~0
#define RX_AFW_2BYTE         2                         //接收地址宽度2字节   Byte2.3~0
#define RX_AFW_3BYTE         3                         //接收地址宽度3字节   Byte2.3~0
#define RX_AFW_4BYTE         4                         //接收地址宽度4字节   Byte2.3~0   100

#define RX_PW_1BYTE          1                         //接收数据宽度1字节   Byte3.5~0
#define RX_PW_32BYTE         32                        //接收数据宽度32字节  Byte3.5~0   00100000
#define TX_PW_1BYTE          1                         //发送数据宽度1字节   Byte4.5~0
#define TX_PW_32BYTE         32                        //发送数据宽度32字节  Byte4.5~0   00100000
#define RX_ADDRESS_0         RX_ADDRESS >> 24          //接收有效地址第1字节 Byte5       11100111
#define RX_ADDRESS_1         (RX_ADDRESS >> 16) & 0xff //接收有效地址第2字节 Byte6       11100111
#define RX_ADDRESS_2         (RX_ADDRESS >> 8) & 0xff  //接收有效地址第3字节 Byte7       11100111
#define RX_ADDRESS_3         RX_ADDRESS & 0xff         //接收有效地址第4字节 Byte8       11100111

#define CRC_MODE_16BIT       0x80                      //CRC16模式           Byte9.7     1
#define CRC_MODE_8BIT        0x00                      //CRC8模式            Byte9.7
#define CRC_EN               0x40                      //CRC使能             Byte9.6     1
#define CRC16_EN             0xc0                      //CRC16模式使能       Byte9.7~6   11
#define CRC8_EN              0x40                      //CRC8模式使能        Byte9.7~6
#define XOF_20MHz            0x20                      //晶体振荡器频率20MHz Byte9.5~3
#define XOF_16MHz            0x18                      //晶体振荡器频率16MHz Byte9.5~3   100
#define XOF_12MHz            0x10                      //晶体振荡器频率12MHz Byte9.5~3
#define XOF_8MHz             0x08                      //晶体振荡器频率8MHz  Byte9.5~3
#define XOF_4MHz             0x00                      //晶体振荡器频率4MHz  Byte9.5~3
#define UP_CLK_EN            0x40                      //输出时钟使能        Byte9.2     1
#define UP_CLK_FREQ_500kHz   0x03                      //输出时钟频率500kHz  Byte9.1~0   11
#define UP_CLK_FREQ_1MHz     0x02                      //输出时钟频率1MHz    Byte9.1~0
#define UP_CLK_FREQ_2MHz     0x01                      //输出时钟频率2MHz    Byte9.1~0
#define UP_CLK_FREQ_4MHz     0x00                      //输出时钟频率4MHz    Byte9.1~0

#define UP_CLK_EN_500kHz     0x43                      //输出时钟频率500kHz  Byte9.2~0   111
#define UP_CLK_EN_1MHz       0x42                      //输出时钟频率1MHz    Byte9.2~0
#define UP_CLK_EN_2MHz       0x41                      //输出时钟频率2MHz    Byte9.2~0
#define UP_CLK_EN_4MHz       0x40                      //输出时钟频率4MHz    Byte9.2~0

#define TX_ADDRESS_0         TX_ADDRESS >> 24          //发送有效地址第1字节
#define TX_ADDRESS_1         (TX_ADDRESS >> 16) & 0xff //发送有效地址第2字节
#define TX_ADDRESS_2         (TX_ADDRESS >> 8) & 0xff  //发送有效地址第3字节
#define TX_ADDRESS_3         TX_ADDRESS & 0xff         //发送有效地址第4字节

/*-----------------------------------------------
        nrf905命令控制字
------------------------------------------------*/
#define WC        0x00            // Write configuration register command
#define RC        0x10             // Read  configuration register command
#define WTP        0x20             // Write TX Payload  command
#define RTP        0x21            // Read  TX Payload  command
#define WTA        0x22            // Write TX Address  command
#define RTA        0x23            // Read  TX Address  command
#define RRP        0x24            // Read  RX Payload  command

//PORTB
#define BUZZER 0
#define LED    1
#define SS     2
#define MOSI   3
#define MISO   4
#define SCK    5

//PORTC
#define TX_EN  0
#define TRX_CE 1
#define PWR    2
#define UPLCK  3

//PORTD
#define CD     2
#define DR     3
#define AM     4

/*
#define DDR_BUZZER DDRB_Bit0
#define DDR_LED    DDRB_Bit1
#define DDR_SS     DDRB_Bit2
#define DDR_MOSI   DDRB_Bit3
#define DDR_MISO   DDRB_Bit4
#define DDR_SCK    DDRB_Bit5

#define DDR_TX_EN  DDRC_Bit0
#define DDR_TRX_CE DDRC_Bit1
#define DDR_PWR    DDRC_Bit2
#define DDR_UPLCK  DDRC_Bit3

#define DDR_CD     DDRD_Bit2
#define DDR_DR     DDRD_Bit3
#define DDR_AM     DDRD_Bit4

//#define DDR_BUZZER PORTB_Bit0
//#define DDR_LED    PORTB_Bit1
*/

2万 · 2007-8-22 02:59

nRFObj::nRFObj(void)
{
    Init ();
}

void nRFObj::Init(void)
{
    SpiInit ();
    nRFInit ();
}

void nRFObj::nRFInit(void)
{
    PORTC |= (0 << TX_EN)//设置接收方式
          |(0 << TRX_CE)//设置nRF905为待机方式
          |(1 << PWR)//nRF905上电
          |(0 << UPLCK);
    PORTD |= (0 << CD)
          |(0 << DR)
          |(0 << AM);

    DDRC  |= (1 << TX_EN)
          |(1 << TRX_CE)
          |(1 << PWR)
          |(0 << UPLCK);

    EICRA = (0 << ISC11)
         |(1 << ISC10)
         |(0 << ISC01)
         |(1 << ISC00);
    EIMSK  = (1 << INT1)
         | (1 << INT0);
    SetConfig(0);
    SetReceiveMode();//设置接收模式
    for (int i = 0; i < 32; i ++)
    {
        SendBuffer = 0;
        ReceiveBuffer = 0;
    }
}

void nRFObj::SpiInit(void)
{
/* 设置MOSI 和SCK 及SS 为输出，其他为输入 */
    PORTB |= (1 << MOSI)
          |(1 << MISO)
          |(1 << SCK)
          |(1 << SS);//关闭SPI
    DDRB  |= (1 << MOSI)
          |(1 << MISO)
          |(1 << SCK)
          |(1 << SS);
/* 使能SPI 主机模式，设置时钟速率为fck/16 ,SPI方式0*/
    SPCR = (1 << SPE)
        |(1 << MSTR)
        |(0 << CPOL)
        |(0 << SPR0);
}

unsigned char nRFObj::SpiReadWrite(unsigned char cData)
{
/* 启动数据传输 */
    SPDR = cData;
/* 等待传输结束 */
    while(!(SPSR & (1 << SPIF)))
    {
    //    __watchdog_reset ();
    }
    return SPDR;
}

unsigned char nRFObj::ReadStatus(void)
{
unsigned char val;
    PORTB &= ~(1 << SS);//打开SPI
    val = SpiReadWrite(RC);//读状态
    PORTB |= (1 << SS);//关闭SPI
    return val;//返回nRF905状态字
}

void nRFObj::SetSendMode(void)//设置发送模式
{
    __nop();///
    __nop();///
    __nop();///
    PORTC |= (1 << TX_EN);
    __nop();
    __nop();
    __nop();
    __nop();
    __nop();
    __nop();
    __nop();
    __nop();
    __nop();
    __nop();
    __nop();
    __nop();
    __nop();
    __nop();
    __nop();
    __nop();
    __nop();
    __nop();
    __nop();
    __nop();
    PORTC &= ~(1 << TRX_CE);//设置nRF905为待机方式
    __delay_cycles(1000);
}

void nRFObj::SetReceiveMode(void)//设置接收模式
{
    __nop();
    __nop();
    __nop();
    PORTC &= ~(1 << TX_EN);
    __nop();
    PORTC |= (1 << TRX_CE);//设置nRF905为工作方式
    __nop();
    __nop();
    __nop();
}

void nRFObj::SendStart(void)
{
    __nop();
    __nop();
    __nop();
    ///  _delay_loop_(1);
    PORTC |= (1 << TRX_CE);//设置nRF905为工作方式
    ///  _delay_loop_(10);
    __nop();
    __nop();
    __nop();
    /*
    __nop();
    __nop();
    __nop();
    __nop();
    __nop();
    __nop();
    __nop();
    */
    PORTC &= ~(1 << TRX_CE);//设置nRF905为待机方式
    ///  _delay_loop_(1);
    __nop();
    __nop();
    __nop();
}

void nRFObj::SetConfig(unsigned long nRFAddr)//配置nRF905
{
    PORTC &= ~(1 << TRX_CE);//设置nRF905为待机方式
    __nop();
    PORTB &= ~(1 << SS);//打开SPI
    SpiReadWrite(WC);                // Write config command
    SpiReadWrite(CH_NO_BYTE);                       //中心频率低8位
    SpiReadWrite(PA_PWR_10dBm | HFREQ_PLL_433MHz); //发射+10dBm,发射频率433MHz,中心频率第9位=0
    SpiReadWrite(TX_AFW_4BYTE | RX_AFW_4BYTE);     //接收地址宽度4字节,发送地址宽度4字节
    SpiReadWrite(RX_PW_32BYTE);                    //接收数据宽度32字节
    SpiReadWrite(TX_PW_32BYTE);                    //发送数据宽度32字节
    SpiReadWrite((nRFAddr >> 24));  //接收有效地址第1字节
    SpiReadWrite((nRFAddr >> 16) & 0xff);                       //接收有效地址第2字节
    SpiReadWrite((nRFAddr >> 8) & 0xff);                       //接收有效地址第3字节
    SpiReadWrite(nRFAddr & 0xff);                       //接收有效地址第4字节
    SpiReadWrite(CRC16_EN | XOF_16MHz);            //CRC16模式使能,晶体振荡器频率16MHz
    PORTB |= (1 << SS);//关闭SPI
    if (PORTC & (1 << TX_EN))//再回到原来的无线收发模式
    {
        PORTC &= ~(1 << TRX_CE);//设置nRF905为待机方式
    }
    else
    {
        PORTC |= (1 << TRX_CE);//设置nRF905为工作方式
    }
}

void nRFObj::ReceiveCallback(void)//无线接收模块
{
    SetReceiveMode();//设置接收模式
    if ((PIND & (1 << CD))//接收到CD信号
        && ((PIND & ((1 << AM) | (1 << DR))) == 0))//此时不应该有AM和DR信号
    {
        PORTC &= ~(1 << TRX_CE);//设置nRF905为待机方式
        __nop();
        PORTB &= ~(1 << SS);//打开SPI
        SpiReadWrite(RRP);
        for (int i = 0; i < 32; i ++)
        {
            ReceiveBuffer = SpiReadWrite(0xff);
        }
        PORTB |= (1 << SS);//关闭SPI
        ReceiveCount = 32;//接收到32个字节的数据
        PORTC |= (1 << TRX_CE);//设置nRF905为工作方式
//        if ((ReceiveBuffer[30] == 0x55) && (ReceiveBuffer[31] == 0xaa))
//        if (ReceiveBuffer[31] == 0xaa)
//        {
            PORTB |= (1 << BUZZER);
            PORTB |= (1 << LED);
//        }
    }
}

void nRFObj::SendCallback(void)//无线发送模块
{
    if ((PIND & ((1 << CD) | (1 <<AM) | (1 << DR))) == 0)//周边无射频信号
    {
        SetSendMode();//设置发送模式
        PORTB |= (1 << LED);
        __nop();
        __nop();
        __nop();
        PORTB &= ~(1 << SS);//打开SPI
        SpiReadWrite(WTA);//写发送地址
        for (int i = 0; i < 4; i ++)
        {
            SpiReadWrite(SendBuffer);
        }
        PORTB |= (1 << SS);//关闭SPI
        __nop();
        __nop();
        __nop();
        PORTB &= ~(1 << SS);//打开SPI
        SendBuffer[30] = 0x55;
        SendBuffer[31] = 0xaa;
        SpiReadWrite(WTP);// Write payload command
        for (int i = 0; i < 32; i ++)
        {
            SpiReadWrite(SendBuffer);
        }
        PORTB |= (1 << SS);//关闭SPI
        SendCount = 32;//接收到32个字节的数据
        SendStart();//开始发送
        SetReceiveMode();//设置接收模式
        PORTB &= ~(1 << LED);
    }
}

2万 · 2007-8-22 03:01

#include "main.h"

#ifdef  __IAR_SYSTEMS_ICC__
#ifndef _SYSTEM_BUILD
#pragma system_include
#endif
#endif

#ifndef __M48_CLASS_H
#define __M48_CLASS_H

#ifdef __cplusplus
extern "C"
{
#endif
class SystemObj;
class TimerObj;
class nRFObj;

void __watchdog_enable(void);

class SystemObj
{
private:
    unsigned char Count;
public:
    SystemObj(void);
    void Init(void);
    void PortInit(void);
public:
    unsigned int RamTest;
    union
    {
        unsigned char SystemFlag;
        struct
        {
            unsigned char MainExecFlag: 1;
            unsigned char EInt0ExecFlag: 1;
            unsigned char EInt1ExecFlag: 1;
            unsigned char Timer0ExecFlag: 1;
            unsigned char Timer1ExecFlag: 1;
            unsigned char Timer2ExecFlag: 1;
        };
    };
};

class TimerObj
{
private:
public:
    TimerObj(void);
    void Init(void);
    void Timer0Init(void);
    void Timer1Init(void);
    void Timer2Init(void);
public:
    unsigned char Count0;
    unsigned char Count1;
    unsigned char Count2;
};

class nRFObj{
public:
    nRFObj(void);//nRFObj的构造函数
    void Init(void);
    void ReceiveCallback(void);//接收无线回调函数
    void SendCallback(void);//发送无线回调函数
private:
    void SpiInit(void);//SPI接口初始化
    void nRFInit(void);//RF模块初始化
    unsigned char SpiReadWrite(unsigned char);//SPI一体化读写程序
    unsigned char ReadStatus(void);//读RF模块状态
    void SetConfig(unsigned long);//配置nRF905
    void SetReceiveMode(void);//设置接收模式
    void SetSendMode(void);//设置发送模式
    void SendStart(void);//开始发送
public:
    unsigned char ReceiveBuffer[32];//RF接收缓冲区
    unsigned char SendBuffer[32];//RF发送缓冲区
    unsigned char ReceiveCount;//RF接收缓冲区接收个数
    unsigned char SendCount;//RF发送缓冲区发送个数
};

#ifdef __cplusplus
}
#endif

#endif//__M48_CLASS_H