?? 24l01_remote.c
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/*
Testing with the new nRF24L01's
This code receives with a Mirf V2 and PIC16F88 dip. It will output the 4 byte RX payload at 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++);
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