/Designs/HOPEwireless/SW_RX_RFM01/atmel/RFM01.h
0,0 → 1,135
/* mija 2008
defines for module RFM01 - RX 868MHz
*/
 
#define CMD_SETTING 0x8000 // b1, b0, eb, et, ex, x3..x0, i2..i0, dc
#define CMD_FREQUENCY 0xA000 // f11..f0 860+F*0.005 MHz 36..3903
#define CMD_RATE 0xC800 // cs, r6..r0 BR=10M/29/(R+1)/1+cs*7)
#define CMD_RX 0xC000 // d1, d0, g1, g0, r2..r0, en
#define CMD_FILTER 0xC420 // al, ml, s1, s0, f2..f0
#define CMD_FIFO 0xCE00 // f3..f0, s1, s0, ff, fe
#define CMD_AFC 0xC600 // a1, a0, rl1, rl0, st, fi, oe, en
#define CMD_WAKE_UP 0xE000 // r4..r0, m7..m0 T=M*2^R [ms]
#define CMD_DUTY 0xCC00 // d6..d0 D.C.= (D*2+1)/M*100%
#define CMD_BATTERY 0xC200 // d2..d0, t4..t0
#define CMD_STATUS 0x0000 // for read status
 
// CMD_SETTING
#define BAND_315 0x0000
#define BAND_433 0x800
#define BAND_868 0x1000
#define BADN_915 0x1800
#define SETTING_EB 0x400 // enable low battery detect
#define SETTING_ET 0x200 // enable wake-up timer
#define SETTING_EX 0x100 // enable crystal oscilator
#define C_8_5pF 0x00
#define C_9pF 0x10
#define C_9_5pF 0x20
#define C_10pF 0x30
#define C_10_5pF 0x40
#define C_11pF 0x50
#define C_11_5pF 0x60
#define C_12pF 0x70
#define C_12_5pF 0x80
#define C_13pF 0x90
#define C_13_5pF 0xA0
#define C_14pF 0xB0
#define C_14_5pF 0xC0
#define C_15pF 0xD0
#define C_15_5pF 0xE0
#define C_16pF 0xF0
#define BANDWIDTH_400 0x02 // baseband bandwidth[kHz]
#define BANDWIDTH_340 0x04
#define BANDWIDTH_270 0x06
#define BANDWIDTH_200 0x08
#define BANDWIDTH_134 0x0A
#define BANDWIDTH_67 0x0C
#define SETTING_DC 0x01 // disable siglanl of CLK pin
 
// CMD_FREQUENCY
#define FREQUENCY_867 0x578
#define FREQUENCY_868 0x640
#define FREQUENCY_869 0x708
 
// CMD_RATE
#define RATE_1200 0x123
#define RATE_2400 0x8F
#define RATE_4800 0x47
#define RATE_CS_4800 0x108
#define RATE_9600 0x23
#define RATE_19200 0x11
#define RATE_38400 0x8
#define RATE_57600 0x5
#define RATE_115200 0x2
// CMD_RX
#define VDI_RSSI 0x00 // VDI response time
#define VDI_DQD 0x40
#define VDI_CLOCK 0x80
#define VDI_ALWAYS_ON 0xC0
#define LNA_GAIN_0 0x00 // LNA_GAIN
#define LNA_GAIN_6 0x10 // -6dBm
#define LNA_GAIN_14 0x20 // -14dBm
#define LNA_GAIN_20 0x30 // -20dBm
#define DRSSI_103 0x00 // RSSI= DRSSI + LNA_GAIN -103dBm
#define DRSSI_97 0x02 // -97dBm
#define DRSSI_91 0x04 // -91dBm
#define DRSSI_85 0x06 // -85dBm
#define DRSSI_79 0x08 // -79dBm
#define DRSSI_73 0x0A // -73dBm
#define DRSSI_67 0x0C // -67dBm
#define DRSSI_61 0x0E // -61dBm
#define RX_EN 0x01 // enablel receiver
 
// CMD_FILTER
#define FILTER_AL 0x80 // enable clock recovery atuo-lock
#define FILTER_ML 0x40 // enable clock recovery fast mode
#define FILTER_S0 0x08 // enable digital filter
#define DQD_7 0x7
#define DQD_6 0x6
#define DQD_5 0x5
#define DQD_4 0x4
#define DQD_3 0x3
#define DQD_2 0x2
#define DQD_1 0x1
#define DQD_0 0x0
 
// CMD_FIFO
#define FIFO_16 0x00 // FIFO level
#define FIFO_15 0xF0
#define FIFO_14 0xE0
#define FIFO_13 0xD0
#define FIFO_12 0xC0
#define FIFO_11 0xB0
#define FIFO_10 0xA0
#define FIFO_9 0x90
#define FIFO_8 0x80
#define FIFO_7 0x70
#define FIFO_6 0x60
#define FIFO_5 0x50
#define FIFO_4 0x40
#define FIFO_3 0x30
#define FIFO_2 0x20
#define FIFO_1 0x10
#define FIFO_VDI 0x00 // FIFO start VDI
#define FIFO_SYNC_WORD 0x04 //
#define FIFO_VDI_WORD 0x08 //
#define FIFO_ALWAYS 0x0C //
#define FIFO_FF 0x02 // enable FIFO fill
#define FIFO_FE 0x01 // enable FIFO function
 
// CMD_AFC
#define AFC_MCU 0x00 // AFC auto_mode by MCU
#define AFC_POWER_ON 0x40 // AFC at poweron
#define AFC_OFFSET 0x80 // AFC keep offset when VDI hi
#define AFC_VDI 0xC0 // AFC keeps independently from VDI
#define AFC_NORESTR 0x00 // range limit no restriction
#define AFC_RANG_16 0x10 // range limit +15/-16
#define AFC_RANG_8 0x20 // range limit +7/-8
#define AFC_RANG_4 0x30 // range limit +3/-4
#define AFC_ST 0x08 // store offset into outpur register
#define AFC_FI 0x04 // enable AFC hi accuracy mode
#define AFC_OE 0x02 // enable AFC output register
#define AFC_EN 0x01 // enable AFC function
 
 
/Designs/HOPEwireless/SW_RX_RFM01/atmel/RX_RFM01.c
0,0 → 1,245
/* mija 2008
demo for RFM01 - RX 868MHz
CPU ATMEGA8
fcpu = 1MHz
 
!! define PIN,PORT,DDR for IOpin !!
 
tested with module RFM12B - TX,9600,Fdev 15kHz
*/
 
#include <avr/io.h>
#include <util/delay.h>
#include "RFM01.h"
 
//************************************************************************
 
#define SDI PB3
#define SDI_PORT PORTB
#define SDI_DDR DDRB
 
#define FSK PC1
#define FSK_PORT PORTC
#define FSK_DDR DDRC
 
#define SDO PB4 // input for mega
#define SDO_PORT PORTB
#define SDO_DDR DDRB
#define SDO_PIN PINB
 
#define SCK PB5
#define SCK_PORT PORTB
#define SCK_DDR DDRB
 
#define nIRQ PD2 // input for mega
#define nIRQ_PORT PORTD
#define nIRQ_DDR DDRD
#define nIRQ_PIN PIND
 
#define nSEL PB2
#define nSEL_PORT PORTB
#define nSEL_DDR DDRB
 
#define LED PD3
#define LED_PORT PORTD
#define LED_DDR DDRD
 
// interni
#define SDI_H SDI_PORT |= _BV(SDI)
#define SDI_L SDI_PORT &= (~(_BV(SDI)))
#define SDI_INIT SDI_DDR |= _BV(SDI)
 
#define FSK_H FSK_PORT |= _BV(FSK)
#define FSK_L FSK_PORT &= (~(_BV(FSK)))
#define FSK_INIT FSK_DDR |= _BV(FSK)
 
#define SDO_INPUT (SDO_PIN & _BV(SDO))
#define SDO_INIT SDO_DDR &= (~(_BV(SDO)))
 
#define SCK_H SCK_PORT |= _BV(SCK)
#define SCK_L SCK_PORT &= (~(_BV(SCK)))
#define SCK_INIT SCK_DDR |= _BV(SCK)
 
#define nIRQ_INPUT (nIRQ_PIN & _BV(nIRQ))
#define nIRQ_INIT nIRQ_DDR &= (~(_BV(nIRQ)))
 
#define nSEL_H nSEL_PORT |= _BV(nSEL)
#define nSEL_L nSEL_PORT &= (~(_BV(nSEL)))
#define nSEL_INIT nSEL_DDR |= _BV(nSEL)
 
#define LED_H LED_PORT |= _BV(LED)
#define LED_L LED_PORT &= (~(_BV(LED)))
#define LED_INIT LED_DDR |= _BV(LED)
 
#define START_FIFO RF_WRITE_CMD(CMD_FIFO|FIFO_8|FIFO_VDI_WORD|FIFO_FF|FIFO_FE)
#define STOP_FIFO RF_WRITE_CMD(CMD_FIFO)
 
//************************************************************************
 
uint8_t rx_buf[16];
 
//************************************************************************
 
void delay_ms(uint16_t time)
{
while(time--) _delay_ms(1);
}
 
void IO_INIT(void)
{
SDI_INIT;
SDO_INIT;
SCK_INIT;
nIRQ_INIT;
nSEL_INIT;
FSK_INIT;
LED_INIT;
}
 
void RF_INIT(void)
{
nSEL_H;
SDI_H;
SCK_L;
nIRQ_INPUT;
SDO_INPUT;
FSK_H;
}
 
uint16_t RF_WRITE_CMD(uint16_t cmd)
{
uint8_t i;
uint16_t temp;
 
SCK_L;
nSEL_L;
temp=0;
for (i=0;i<16;i++)
{
if (cmd & 0x8000) SDI_H;
else SDI_L;
SCK_H;
cmd <<= 1;
temp <<= 1;
if(SDO_INPUT) temp |= 0x0001;
SCK_L;
}
SCK_L;
nSEL_H;
return (temp);
}
 
void RF_WRITE_DATA(uint8_t data)
{
while (nIRQ_INPUT);
RF_WRITE_CMD(0xB800 + data);
}
 
uint8_t RF_READ_DATA(void)
{
uint8_t i,result;
 
while (nIRQ_INPUT);
SCK_L;
nSEL_L;
SDI_L;
result=0;
for (i=0;i<24;i++)
{
result <<= 1;
if (SDO_INPUT) result |= 0x01;
SCK_H;
SCK_L;
}
nSEL_H;
return (result);
}
 
void RS232_INIT(void)
{
//set baud rate 9600 8N1 for Fosc 1MHz
UBRRH = 0;
UBRRL = 12;
UCSRB = (1<<RXEN)|(1<<TXEN); //enable RX TX
UCSRC = (1<<URSEL) |(3<<UCSZ0); //8N1
UCSRA |= _BV(U2X);
}
 
void put_rs232(char data)
{
// Wait for empty transmit buffer
while ( !( UCSRA & (1<<UDRE)) );
// Put data into buffer, sends the data
UDR = data;
}
 
int main()
{
uint8_t i,ChkSum;
uint8_t LED_TRG;
uint8_t b;
 
IO_INIT();
RS232_INIT();
RF_INIT();
delay_ms(100);
LED_L;
LED_TRG=0;
 
RF_WRITE_CMD(CMD_SETTING |BAND_868 | C_12pF | BANDWIDTH_67 | SETTING_DC);
RF_WRITE_CMD(CMD_FREQUENCY |FREQUENCY_868);
RF_WRITE_CMD(CMD_RATE |RATE_9600);
RF_WRITE_CMD(CMD_FILTER |FILTER_AL | FILTER_S0 | DQD_4);
RF_WRITE_CMD(CMD_AFC |AFC_POWER_ON | AFC_RANG_8 | AFC_ST | AFC_OE | AFC_EN);
RF_WRITE_CMD(CMD_RX);
RF_WRITE_CMD(CMD_RX |VDI_CLOCK | LNA_GAIN_0 | DRSSI_103 | RX_EN);
RF_WRITE_CMD(CMD_FIFO);
 
while (1)
{
START_FIFO;
ChkSum = 0;
for (i=0;i<16;i++)
{
b = RF_READ_DATA();
rx_buf[i] = b;
ChkSum += b;
}
b = RF_READ_DATA();
RF_READ_DATA();
STOP_FIFO;
for (i=0;i<16;i++)
{
put_rs232(rx_buf[i]);
delay_ms(2);
}
if (ChkSum == b)
{
LED_TRG = ~ LED_TRG;
put_rs232(' ');
put_rs232('o');
put_rs232('k');
}
else
{
put_rs232('\n');
delay_ms(2);
put_rs232('\r');
delay_ms(2);
put_rs232('e');
put_rs232('r');
put_rs232('r');
}
if (LED_TRG) LED_H;
else LED_L;
}
return 0;
}
 
 
 
/Designs/HOPEwireless/SW_RX_RFM01/atmel/RX_RFM01.hex
0,0 → 1,34
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