24l01_remote.c.bak

nRF24L01 RF接收发送例子程序

/*
    Testing with the new nRF24L01's
    
    This code receives with a Mirf V2 and  PIC16F88 dip.  It will output the status register contents
        in a couple of spots so you can see what's going on internally, 9600 baud.
        
    This code will also compile with the free version of CC5X!!!!!!!!!!!!!!!!
        
    This configuration is compatable with nRF2401's (1MB, 8 bit CRC, 4 byte payload), it doesn't implement all of the extra
        functionality of the 24L01's
        
    Pete, 4/20/06
        
*/
#define Clock_8MHz
#define Baud_9600

#include "C:\Global\PIC\C\16F88.h"

//There is no config word because this program tested on a 16F88 using Bloader the boot load program

#pragma origin 4


#define RX_CE      PORTB.0  //PIN 6
#define RX_CSN     PORTB.1  //PIN 7
#define RX_SCK     PORTB.3  //PIN 9
#define RX_MOSI    PORTB.4  //PIN 10
#define RX_MISO    PORTB.6  //PIN 12
#define RX_IRQ     PORTA.0  //PIN 17

#define RED_LED        PORTB.7
#define BLUE_LED       PORTA.2

uns8 data_array[4];


void boot_up(void);

void configure_RX(void);

void reset_RX(void);

void delay_ms(uns16);

void main()
{
    uns8 x, y;
    
      
    boot_up();
    
    for (x = 0; x < 5; x++)
    {
        RED_LED = 1;
        delay_ms(10);
        RED_LED = 0;
        BLUE_LED = 1;
        delay_ms(10);
        BLUE_LED = 0;
    }
    
    configure_RX();
    
    
    while(1)
    {
        
        if (RX_IRQ == 0)    //wait for anything
        {
            for (x = 0; x < 5; x++)
            {
                RED_LED = 1;
                delay_ms(10);
                RED_LED = 0;
                BLUE_LED = 1;
                delay_ms(10);
                BLUE_LED = 0;
            }
            
            delay_ms(200);
            reset_RX();
            
        }
        
    
    }
        
}

void boot_up(void)
{
    OSCCON = 0b.0111.0000; //Setup internal oscillator for 8MHz
    while(OSCCON.2 == 0); //Wait for frequency to stabilize

    ANSEL = 0b.0000.0000; //Turn pins to Digital instead of Analog
    CMCON = 0b.0000.0111; //Turn off comparator on RA port

    PORTA = 0b.0000.0000;  
    TRISA = 0b.1111.1011;  //0 = Output, 1 = Input 

    PORTB = 0b.0000.0010;  
    TRISB = 0b.0100.0100;  //0 = Output, 1 = Input (RX is an input)

    BRGH = 0; //Normal speed UART
    SPBRG = 12; //8MHz for 9600 Baud

    SYNC = 0;
    SPEN = 1;
    CREN = 1;
    TXEN = 1;

}



//2.4G Configuration - Transmitter
//This sets up one RF-24G for shockburst transmission
void configure_RX(void)
{
    uns8 i, j, data, cmd;
    
    RX_CSN = 0;
    RX_CE = 0;
    
    data = 0x39; //PRX, CRC enabled======================================================================================
    cmd = 0x20;
    
    for(i = 0 ; i < 8 ; i++)
    {
        RX_MOSI = cmd.7;

        RX_SCK = 1;

        RX_SCK = 0;
        
        cmd <<= 1;
    }
    
    for(i = 0 ; i < 8 ; i++)
    {
        RX_MOSI = data.7;

        RX_SCK = 1;

        RX_SCK = 0;
        
        data <<= 1;
    }
    
    RX_CSN = 1;
    
    
    RX_CSN = 0;
    
    data = 0x00; //dissable auto-ack for all channels==================================================================   
    cmd = 0x21;
    
    for(i = 0 ; i < 8 ; i++)
    {
        RX_MOSI = cmd.7;

        RX_SCK = 1;

        RX_SCK = 0;
        
        cmd <<= 1;
    }
    
    for(i = 0 ; i < 8 ; i++)
    {
        RX_MOSI = data.7;

        RX_SCK = 1;

        RX_SCK = 0;
        
        data <<= 1;
    }
    
    RX_CSN = 1;
    
    
    RX_CSN = 0;
    
    data = 0x03; //address width = 5 bytes =====================================================================================
    cmd = 0x23;
    
    for(i = 0 ; i < 8 ; i++)
    {
        RX_MOSI = cmd.7;

        RX_SCK = 1;

        RX_SCK = 0;
        
        cmd <<= 1;
    }
    
    for(i = 0 ; i < 8 ; i++)
    {
        RX_MOSI = data.7;

        RX_SCK = 1;

        RX_SCK = 0;
        
        data <<= 1;
    }
    
    RX_CSN = 1;

    
    RX_CSN = 0;
    
    data = 0x07; //data rate = 1MB =========================================================================================
    cmd = 0x26;
    
    for(i = 0 ; i < 8 ; i++)
    {
        RX_MOSI = cmd.7;

        RX_SCK = 1;

        RX_SCK = 0;
        
        cmd <<= 1;
    }
    
    for(i = 0 ; i < 8 ; i++)
    {
        RX_MOSI = data.7;

        RX_SCK = 1;

        RX_SCK = 0;
        
        data <<= 1;
    }
    
    RX_CSN = 1;
    

    RX_CSN = 0;

    //
    data = 0x04; //4 byte payload =======================================================================================
    cmd = 0x31;
    
    for(i = 0 ; i < 8 ; i++)
    {
        RX_MOSI = cmd.7;

        RX_SCK = 1;

        RX_SCK = 0;
        
        cmd <<= 1;
    }
    
    for(i = 0 ; i < 8 ; i++)
    {
        RX_MOSI = data.7;

        RX_SCK = 1;

        RX_SCK = 0;
        
        data <<= 1;
    }
    
    RX_CSN = 1;

    
    RX_CSN = 0;

    //set channel 2======================================================================================================
    data = 0x02; 
    cmd = 0x25;
    
    for(i = 0 ; i < 8 ; i++)
    {
        RX_MOSI = cmd.7;

        RX_SCK = 1;

        RX_SCK = 0;
        
        cmd <<= 1;
    }
    
    for(i = 0 ; i < 8 ; i++)
    {
        RX_MOSI = data.7;

        RX_SCK = 1;

        RX_SCK = 0;
        
        data <<= 1;
    }
    
    RX_CSN = 1;
    
    
    
    
    RX_CSN = 0;

    //set address E7E7E7E7E7===============================================================================================
    data = 0xE7; 
    cmd = 0x30;
    
    for(i = 0 ; i < 8 ; i++)
    {
        RX_MOSI = cmd.7;

        RX_SCK = 1;

        RX_SCK = 0;
        
        cmd <<= 1;
    }
    
    for (j = 0; j < 5; j++)
    {
        for(i = 0 ; i < 8 ; i++)
        {
            RX_MOSI = data.7;

            RX_SCK = 1;

            RX_SCK = 0;
            
            data <<= 1;
        }
        
        data = 0xE7;
    }
    
    RX_CSN = 1;
  
  
    RX_CSN = 0;
    
    data = 0x3B; //PWR_UP = 1 ==============================================================================================
    cmd = 0x20;
    
    for(i = 0 ; i < 8 ; i++)
    {
        RX_MOSI = cmd.7;

        RX_SCK = 1;

        RX_SCK = 0;
        
        cmd <<= 1;
    }
    
    for(i = 0 ; i < 8 ; i++)
    {
        RX_MOSI = data.7;

        RX_SCK = 1;

        RX_SCK = 0;
        
        data <<= 1;
    }
    
    RX_CSN = 1;
    
    RX_CE = 1;
   
    
    
}



//reset all ints
void reset_RX(void)
{
    uns8 i, j, data, cmd;
    
    
    cmd = 0x61; //Read RX payload ==========================================================================================
    
    RX_CSN = 0;
    
    for(i = 0 ; i < 8 ; i++)
    {
        RX_MOSI = cmd.7;

        RX_SCK = 1;

        RX_SCK = 0;
        
        cmd <<= 1;
    }
    
    for (j = 0; j < 4; j++)
    {
        data = 0;
        
        for(i = 0 ; i < 8 ; i++)
        {
            data <<= 1;
            
            RX_SCK = 1;
            
            data.0 = RX_MISO;
    
            RX_SCK = 0;

        }
        
        while(TXIF == 0);   //print out RX payload...=====================================================================
        TXREG = data;
 
    }
    
    RX_CSN = 1;
    
    while(TXIF == 0);
    TXREG = 10;
    while(TXIF == 0);
    TXREG = 13;
    
    cmd = 0xE2; //Flush RX FIFO ==========================================================================================
    
    RX_CSN = 0;
    
    for(i = 0 ; i < 8 ; i++)
    {
        RX_MOSI = cmd.7;

        RX_SCK = 1;

        RX_SCK = 0;
        
        cmd <<= 1;
    }
    
    RX_CSN = 1;

    RX_CSN = 0;

    //
    cmd = 0x27;
    data = 0x40;    //reset int ===========================================================================================
    
    for(i = 0 ; i < 8 ; i++)
    {
        RX_MOSI = cmd.7;
                
        RX_SCK = 1;

        RX_SCK = 0;
        
        cmd <<= 1;
        
    }
    
    for(i = 0 ; i < 8 ; i++)
    {
        RX_MOSI = data.7;
                
        RX_SCK = 1;

        RX_SCK = 0;
        
        data <<= 1;
        
    }
    
    RX_CSN = 1;
    
    
    
}

//General short delay
void delay_ms(uns16 x)
{
    uns8 y, z;
    for ( ; x > 0 ; x--)
        for ( y = 0 ; y < 4 ; y++)
            for ( z = 0 ; z < 176 ; z++);
}