?? 24l01_base.c.bak
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/*
Testing with the new nRF24L01's
This code transmits 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, 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 TX_CE PORTB.0 //PIN 6
#define TX_CSN PORTB.1 //PIN 7
#define TX_SCK PORTB.3 //PIN 9
#define TX_MOSI PORTB.4 //PIN 10
#define TX_MISO PORTB.6 //PIN 12
#define TX_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_transmitter(void);
void transmit_data(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_transmitter();
while(1)
{
while (1)
{
transmit_data();
RED_LED = 1;
delay_ms(10);
RED_LED = 0;
delay_ms(500);
}
}
}
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;
}
//This sends out the data stored in the data_array
//data_array must be setup before calling this function
void transmit_data(void)
{
uns8 i, data, cmd;
bit data2;
TX_CSN = 0;
data = 0x7E; //clear previous ints======================================================================================
cmd = 0x27;
for(i = 0 ; i < 8 ; i++)
{
TX_MOSI = cmd.7;
TX_SCK = 1;
data2 = TX_MISO;
TX_SCK = 0;
cmd <<= 1;
while(TXIF == 0); //print out the status register before clearing stuff...==============================
TXREG = data2+48;
}
while(TXIF == 0);
TXREG = 44;
while(TXIF == 0);
TXREG = 32;
for(i = 0 ; i < 8 ; i++)
{
TX_MOSI = data.7;
TX_SCK = 1;
TX_SCK = 0;
data <<= 1;
}
TX_CSN = 1;
TX_CSN = 0;
data = 0x3A; //PWR_UP = 1===========================================================================================
cmd = 0x20;
for(i = 0 ; i < 8 ; i++)
{
TX_MOSI = cmd.7;
TX_SCK = 1;
TX_SCK = 0;
cmd <<= 1;
}
for(i = 0 ; i < 8 ; i++)
{
TX_MOSI = data.7;
TX_SCK = 1;
TX_SCK = 0;
data <<= 1;
}
TX_CSN = 1;
TX_CSN = 0;
//clear TX fifo===========================================================================================
//the data sheet says that this is supposed to come up 0 after POR, but that doesn't seem to be the case
cmd = 0xE1;
for(i = 0 ; i < 8 ; i++)
{
TX_MOSI = cmd.7;
TX_SCK = 1;
TX_SCK = 0;
cmd <<= 1;
}
TX_CSN = 1;
TX_CSN = 0;
data2 = 0;
data = 0x34; //4 byte payload================================================================================
cmd = 0xA0;
for(i = 0 ; i < 8 ; i++)
{
TX_MOSI = cmd.7;
TX_SCK = 1;
data2 = TX_MISO;
TX_SCK = 0;
cmd <<= 1;
while(TXIF == 0); //print out status register after clearing ints...===============================
TXREG = data2+48;
}
while(TXIF == 0);
TXREG = 10;
while(TXIF == 0);
TXREG = 13;
//clock in payload==============================================================================================
for(i = 0 ; i < 8 ; i++) //"4"
{
TX_MOSI = data.7;
TX_SCK = 1;
TX_SCK = 0;
data <<= 1;
}
data = 0x33;
for(i = 0 ; i < 8 ; i++) //"3"
{
TX_MOSI = data.7;
TX_SCK = 1;
TX_SCK = 0;
data <<= 1;
}
data = 0x32;
for(i = 0 ; i < 8 ; i++) //"2"
{
TX_MOSI = data.7;
TX_SCK = 1;
TX_SCK = 0;
data <<= 1;
}
data = 0x31;
for(i = 0 ; i < 8 ; i++) //"1"
{
TX_MOSI = data.7;
TX_SCK = 1;
TX_SCK = 0;
data <<= 1;
}
TX_CSN = 1;
//Pulse CE to start transmission ========================================================================
TX_CE = 1;
delay_ms(1);
TX_CE = 0;
}
//2.4G Configuration - Transmitter
//This sets up one RF-24G for shockburst transmission
void configure_transmitter(void)
{
uns8 i, j, data, data2, cmd;
data2 = 0;
TX_CE = 0;
TX_CSN = 0;
cmd = 0x20;
data = 0x38; // PTX, CRC enabled, mask a couple of ints=============================================================
for(i = 0 ; i < 8 ; i++)
{
TX_MOSI = cmd.7;
TX_SCK = 1;
TX_SCK = 0;
cmd <<= 1;
}
for(i = 0 ; i < 8 ; i++)
{
TX_MOSI = data.7;
TX_SCK = 1;
TX_SCK = 0;
data <<= 1;
}
TX_CSN = 1;
TX_CSN = 0;
data = 0x00; //auto retransmit off===========================================================================================
cmd = 0x24;
for(i = 0 ; i < 8 ; i++)
{
TX_MOSI = cmd.7;
TX_SCK = 1;
TX_SCK = 0;
cmd <<= 1;
}
for(i = 0 ; i < 8 ; i++)
{
TX_MOSI = data.7;
TX_SCK = 1;
TX_SCK = 0;
data <<= 1;
}
TX_CSN = 1;
TX_CSN = 0;
data = 0x03; //address width = 5======================================================================================
cmd = 0x23;
for(i = 0 ; i < 8 ; i++)
{
TX_MOSI = cmd.7;
TX_SCK = 1;
data2.0 = TX_MISO;
TX_SCK = 0;
data2 <<= 1;
cmd <<= 1;
}
for(i = 0 ; i < 8 ; i++)
{
TX_MOSI = data.7;
TX_SCK = 1;
TX_SCK = 0;
data <<= 1;
}
TX_CSN = 1;
TX_CSN = 0;
data = 0x07; //data rate = 1MB=====================================================================================
cmd = 0x26;
for(i = 0 ; i < 8 ; i++)
{
TX_MOSI = cmd.7;
TX_SCK = 1;
TX_SCK = 0;
cmd <<= 1;
}
for(i = 0 ; i < 8 ; i++)
{
TX_MOSI = data.7;
TX_SCK = 1;
TX_SCK = 0;
data <<= 1;
}
TX_CSN = 1;
TX_CSN = 0;
data = 0x02; //set channel 2, this is default but we did it anyway...====================================================
cmd = 0x25;
for(i = 0 ; i < 8 ; i++)
{
TX_MOSI = cmd.7;
TX_SCK = 1;
TX_SCK = 0;
cmd <<= 1;
}
for(i = 0 ; i < 8 ; i++)
{
TX_MOSI = data.7;
TX_SCK = 1;
TX_SCK = 0;
data <<= 1;
}
TX_CSN = 1;
data = 0xE7; //set address E7E7E7E7E7, also default...====================================================================
cmd = 0x30;
for(i = 0 ; i < 8 ; i++)
{
TX_MOSI = cmd.7;
TX_SCK = 1;
TX_SCK = 0;
cmd <<= 1;
}
for (j = 0; j < 5; j++)
{
for(i = 0 ; i < 8 ; i++)
{
TX_MOSI = data.7;
TX_SCK = 1;
TX_SCK = 0;
data <<= 1;
}
data = 0xE7;
}
TX_CSN = 1;
TX_CSN = 0;
//disable auto-ack, RX mode===========================================================================================
//shouldn't have to do this, but it won't TX if you don't
data = 0x00;
cmd = 0x21;
for(i = 0 ; i < 8 ; i++)
{
TX_MOSI = cmd.7;
TX_SCK = 1;
TX_SCK = 0;
cmd <<= 1;
}
for(i = 0 ; i < 8 ; i++)
{
TX_MOSI = data.7;
TX_SCK = 1;
TX_SCK = 0;
data <<= 1;
}
TX_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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