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HFBEACON.cpp
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HFBEACON.cpp
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/********************************************************************************************
* HF multimodes beacon Arduino library
* Created 04/10/2014
* Christophe Caiveau [email protected]
*
* Use this library freely
*
* Instance :
*
* Functions :
*
*******************************************************************************************/
#include <HFBEACON.h>
#include <AD9850SPI.h>
#include <avr/pgmspace.h>
HFBEACON Beacon;
HFBEACON::HFBEACON(){
rsidTxEnable = 1;
pinMode(7,OUTPUT);
pinMode(A2,OUTPUT);
pinMode(A1,OUTPUT);
digitalWrite(7, HIGH);
digitalWrite(A2, HIGH);
digitalWrite(A1, HIGH);
}
/********************************************************
* Power management
********************************************************/
void HFBEACON::ddsPower(int powDds){
if(powDds == 1)
{
digitalWrite(7, LOW);
DDS.powerOn();
}
else if(powDds == 0)
{
digitalWrite(7, HIGH);
DDS.powerOff();
}
}
/********************************************************
* RSID
********************************************************/
void HFBEACON::rsidToggle(boolean rsidEnable){
if(rsidEnable == true)
{
rsidTxEnable = 1;
}
else
{
rsidTxEnable = 0;
}
}
void HFBEACON::rsidTx(long freqRsid, int modeRsid){
static int RSID[8][16] PROGMEM = {
{0,0,8,10,9,10,1,8,2,11,9,2,3,11,1,-83}, //bpsk31
{0,2,3,12,13,14,12,1,13,2,15,15,3,0,14,-83}, //qpsk31
{0,0,9,13,11,13,2,9,4,15,11,4,6,15,2,-83}, //bpsk63
{0,0,1,7,2,7,3,1,6,4,2,6,5,4,3,-83}, //qpsk63
{0,9,7,15,0,6,14,14,1,8,9,8,6,1,7,0}, //RTTY45
{0,2,1,2,9,0,10,3,1,10,11,3,9,8,8,-66}, //feld hell
{0,0,11,3,15,3,4,11,8,7,15,8,12,7,4,-83}, //bpsk125
{0,0,3,9,6,9,5,3,10,12,6,10,15,12,5,-83} //qpsk125
};
int a = 0;
int offset;
offset = int(pgm_read_word(&RSID[modeRsid][15])); // used to center RSID and transmission
DDS.setfreq(freqRsid + offset, 0);
delay(500); // 0.5s for RSID start
for (int element=0; element<15; element++) { // For Each Element in the message
a = int(pgm_read_word(&RSID[modeRsid][element])); // get the numerical ASCII Code
DDS.setfreq(freqRsid + offset + (a * 10.766), 0);
delay(92); // baud rate 92,88ms
}
}
/***************************************************************************
* CW
***************************************************************************/
void HFBEACON::cwTx(long freqCw, char * stringCw, int cwWpm){
static int morseVaricode[2][59] PROGMEM = {
{0,212,72,0,144,0,128,120,176,180,0,80,204,132,84,144,248,120,56,24,8,0,128,192,224,240,224,168,0,136,0,48,104,64,128,160,128,0,32,192,0,0,112,160,64,192,128,224,96,208,64,0,128,32,16,96,144,176,192},
{7,6,5,0,4,0,4,6,5,6,0,5,6,6,6,5,5,5,5,5,5,5,5,5,5,5,6,6,0,5,0,6,6,2,4,4,3,1,4,3,4,2,4,3,4,2,2,3,4,4,3,3,1,3,4,3,4,4,4}
};
int tempo = 1200 / cwWpm; // Duration of 1 dot
byte nb_bits,val;
int d;
int c = *stringCw++;
while(c != '\0'){
c = toupper(c); // Uppercase
if(c == 32){ // Space character between words in string
DDS.setfreq(0,0); // 7 dots length spacing
delay(tempo * 7); // between words
}
else if (c > 32 && c < 91) {
c = c - 32;
d = int(pgm_read_word(&morseVaricode[0][c])); // Get CW varicode
nb_bits = int(pgm_read_word(&morseVaricode[1][c])); // Get CW varicode length
if(nb_bits != 0){ // Number of bits = 0 -> invalid character #%<>
for(int b = 7; b > 7 - nb_bits; b--){ // Send CW character, each bit represents a symbol (0 for dot, 1 for dash) MSB first
val=bitRead(d,b); //look varicode
DDS.setfreq(freqCw,0); // Let's transmit
delay(tempo + 2 * tempo * val); // A dot length or a dash length (3 times the dot)
DDS.setfreq(0,0); // 1 dot length spacing
delay(tempo); // between symbols in a character
}
}
DDS.setfreq(0,0); // 3 dots length spacing
delay(tempo * 3); // between characters in a word
}
c = *stringCw++; // Next caracter in string
}
DDS.setfreq(0, 0); // No more transmission
}
/********************************************************
* PSK
********************************************************/
void HFBEACON::pskTx(long freqPsk, char * stringPsk, int modePsk, int baudsPsk)
{
static int PskVaricode[2][128] PROGMEM = {
{683,731,749,887,747,863,751,765,767,239,29,879,733,31,885,939,759,757,941,943,859,875,877,
855,891,893,951,853,861,955,763,895,1,511,351,501,475,725,699,383,251,247,367,479,117,53,
87,431,183,189,237,255,375,347,363,429,427,439,245,445,493,85,471,687,701,125,235,173,181,
119,219,253,341,127,509,381,215,187,221,171,213,477,175,111,109,343,437,349,373,379,685,503,
495,507,703,365,735,11,95,47,45,3,61,91,43,13,491,191,27,59,15,7,63,447,21,23,5,55,123,107,
223,93,469,695,443,693,727,949},
{10,10,10,10,10,10,10,10,10,8,5,10,10,5,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,
10,1,9,9,9,9,10,10,9,8,8,9,9,7,6,7,9,8,8,8,8,9,9,9,9,9,9,8,9,9,7,9,10,10,7,8,8,8,7,8,8,9,7,
9,9,8,8,8,8,8,9,8,7,7,9,9,9,9,9,10,9,9,9,10,9,10,4,7,6,6,2,6,7,6,4,9,8,5,6,4,3,6,9,5,5,3,6,
7,7,8,7,9,10,9,10,10,10}
};
static int QpskConvol[32] PROGMEM = {16,8,-8,0,-8,0,16,8,0,-8,8,16,8,16,0,-8,8,16,0,-8,0,-8,8,16,-8,0,16,8,16,8,-8,0};
int shreg = 0; // Shift register qpsk
int phase = 0;
if(rsidTxEnable == 1)
{
// 0 bpsk31
// 1 qpsk31
// 2 bpsk63
rsidTx(freqPsk, (baudsPsk >> 4) - (modePsk == 'B')); // 3 qpsk63
// 6 bpsk125
// 7 qpsk125
}
pskIdle(freqPsk, baudsPsk); // A little idle on start of transmission for AFC capture
byte nb_bits,val;
int d,e;
int c = *stringPsk++;
while (c != '\0')
{
d = int(pgm_read_word(&PskVaricode[0][c])); // Get PSK varicode
nb_bits = int(pgm_read_word(&PskVaricode[1][c])); // Get PSK varicode length
d <<= 2; //add 00 on lsb for spacing between caracters
e = d;
for(int b = nb_bits + 2; b >= 0; b--) //send car in psk
{
val=bitRead(e,b); //look varicode
if(modePsk == 'B') // BPSK mode
{
if (val == 0)
{
phase = (phase ^ 16) &16; // Phase reverted on 0 bit
}
}
else if(modePsk == 'Q'){ // QPSK mode
shreg = (shreg << 1) | val; // Loading shift register with next bit
d=(int)int(pgm_read_word(&QpskConvol[shreg & 31])); // Get the phase shift from convolution code of 5 bits in shit register
phase = (phase + d) & 31; // Phase shifting
}
DDS.setfreq(freqPsk, phase); // Let's transmit
delay((961 + baudsPsk) / baudsPsk); // Gives the baud rate
}
c = *stringPsk++; // Next caracter in string
}
pskIdle(freqPsk, baudsPsk); // A little idle to end the transmission
DDS.setfreq(0, 0); // No more transmission
}
void HFBEACON::pskIdle(long freqIdle, int baudsIdle)
{
int phaseIdle = 0;
for(int n = 0; n < baudsIdle; n++)
{
phaseIdle = (phaseIdle ^ 16) & 16; // Idle is a flow of zeroes so only phase inversion
DDS.setfreq(freqIdle, phaseIdle); // Let's transmit
delay((961 + baudsIdle) / baudsIdle); // Gives the baud rate
}
}
/********************************************
* RTTY
********************************************/
void HFBEACON::rttyTx(long freqRtty, char * stringRtty)
{
static int TableRtty[59] PROGMEM = {4,22,17,5,18,0,11,26,30,9,0,0,6,24,7,23,13,29,25,16,10,1,21,28,12,3,14,15,0,0,0,19,0,24,19,14,18,16,22,11,5,12,26,30,9,7,6,3,13,29,10,20,1,28,15,25,23,21,17};
int signlett = 1; // RTTY Baudot signs/letters tables toggle
char c;
c = *stringRtty++;
if(rsidTxEnable == 1)
{
rsidTx(freqRtty, 4);
}
while ( c != '\0')
{
c = toupper(int(c)); // Uppercase
if(c == 10) // Line Feed
{
rttyTxByte(freqRtty, 8);
}
else if(c == 13) // Carriage Return
{
rttyTxByte(freqRtty, 2);
}
else if(c == 32) // Space
{
rttyTxByte(freqRtty, 4);
}
else if (c > 32 && c < 91)
{
c = c - 32;
if(c < 33)
{
if (signlett == 1)
{
signlett = 0; // toggle form signs to letters table
rttyTxByte(freqRtty, 27); //
}
}
else if(signlett == 0)
{
signlett = 1; // toggle form letters to signs table
rttyTxByte(freqRtty, 31); //
}
rttyTxByte(freqRtty, int(pgm_read_word(&TableRtty[int(c)]))); // Send the 5 bits word
}
c = *stringRtty++; // Next character in string
}
DDS.setfreq(0, 0); // No more transmission
}
void HFBEACON::rttyTxByte(long freqRttyTxbyte, char c){
int val;
c = (c << 2)+3;
for(int b = 7; b >= 0; b--) // MSB first
{
val = bitRead(c,b); // Read 1 bit
DDS.setfreq(freqRttyTxbyte + (170 * val), 0); // Let's transmit (bit 1 is 170Hz shifted)
delay(22); // Gives the baud rate
}
}
/***********************************************************************************
* Hellschreiber 122.5 bauds => 8,888ms
* http://brainwagon.org/2012/01/11/hellduino-sending-hellschreiber-from-an-arduino
************************************************************************************/
void HFBEACON::hellTx(long freqHell, char * stringHell)
{
static word GlyphTab[59][8] PROGMEM = {
{0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000},{0x1f9c, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000},{0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000},{0x0330, 0x0ffc, 0x0330, 0x0ffc, 0x0330, 0x0000, 0x0000},
{0x078c, 0x0ccc, 0x1ffe, 0x0ccc, 0x0c78, 0x0000, 0x0000},{0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000},{0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000},{0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000},
{0x01e0, 0x0738, 0x1c0e, 0x0000, 0x0000, 0x0000, 0x0000},{0x1c0e, 0x0738, 0x01e0, 0x0000, 0x0000, 0x0000, 0x0000},{0x018c, 0x0198, 0x0ff0, 0x0198, 0x018c, 0x0000, 0x0000},{0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000},
{0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000},{0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000},{0x001c, 0x001c, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000},{0x001c, 0x0070, 0x01c0, 0x0700, 0x1c00, 0x0000, 0x0000},
{0x07f8, 0x0c0c, 0x0c0c, 0x0c0c, 0x07f8, 0x0000, 0x0000},{0x0300, 0x0600, 0x0ffc, 0x0000, 0x0000, 0x0000, 0x0000},{0x061c, 0x0c3c, 0x0ccc, 0x078c, 0x000c, 0x0000, 0x0000},{0x0006, 0x1806, 0x198c, 0x1f98, 0x00f0, 0x0000, 0x0000},
{0x1fe0, 0x0060, 0x0060, 0x0ffc, 0x0060, 0x0000, 0x0000},{0x000c, 0x000c, 0x1f8c, 0x1998, 0x18f0, 0x0000, 0x0000},{0x07fc, 0x0c66, 0x18c6, 0x00c6, 0x007c, 0x0000, 0x0000},{0x181c, 0x1870, 0x19c0, 0x1f00, 0x1c00, 0x0000, 0x0000},
{0x0f3c, 0x19e6, 0x18c6, 0x19e6, 0x0f3c, 0x0000, 0x0000},{0x0f80, 0x18c6, 0x18cc, 0x18cc, 0x0ff0, 0x0000, 0x0000},{0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000},{0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000},
{0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000},{0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000},{0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000},{0x1800, 0x1800, 0x19ce, 0x1f00, 0x0000, 0x0000, 0x0000},
{0x01f0, 0x0208, 0x04e4, 0x0514, 0x0514, 0x03e0, 0x0000},{0x07fc, 0x0e60, 0x0c60, 0x0e60, 0x07fc, 0x0000, 0x0000},{0x0c0c, 0x0ffc, 0x0ccc, 0x0ccc, 0x0738, 0x0000, 0x0000},{0x0ffc, 0x0c0c, 0x0c0c, 0x0c0c, 0x0c0c, 0x0000, 0x0000},
{0x0c0c, 0x0ffc, 0x0c0c, 0x0c0c, 0x07f8, 0x0000, 0x0000},{0x0ffc, 0x0ccc, 0x0ccc, 0x0c0c, 0x0c0c, 0x0000, 0x0000},{0x0ffc, 0x0cc0, 0x0cc0, 0x0c00, 0x0c00, 0x0000, 0x0000},{0x0ffc, 0x0c0c, 0x0c0c, 0x0ccc, 0x0cfc, 0x0000, 0x0000},
{0x0ffc, 0x00c0, 0x00c0, 0x00c0, 0x0ffc, 0x0000, 0x0000},{0x0c0c, 0x0c0c, 0x0ffc, 0x0c0c, 0x0c0c, 0x0000, 0x0000},{0x003c, 0x000c, 0x000c, 0x000c, 0x0ffc, 0x0000, 0x0000},{0x0ffc, 0x00c0, 0x00e0, 0x0330, 0x0e1c, 0x0000, 0x0000},
{0x0ffc, 0x000c, 0x000c, 0x000c, 0x000c, 0x0000, 0x0000},{0x0ffc, 0x0600, 0x0300, 0x0600, 0x0ffc, 0x0000, 0x0000},{0x0ffc, 0x0700, 0x01c0, 0x0070, 0x0ffc, 0x0000, 0x0000},{0x0ffc, 0x0c0c, 0x0c0c, 0x0c0c, 0x0ffc, 0x0000, 0x0000},
{0x0c0c, 0x0ffc, 0x0ccc, 0x0cc0, 0x0780, 0x0000, 0x0000},{0x0ffc, 0x0c0c, 0x0c3c, 0x0ffc, 0x000f, 0x0000, 0x0000},{0x0ffc, 0x0cc0, 0x0cc0, 0x0cf0, 0x079c, 0x0000, 0x0000},{0x078c, 0x0ccc, 0x0ccc, 0x0ccc, 0x0c78, 0x0000, 0x0000},
{0x0c00, 0x0c00, 0x0ffc, 0x0c00, 0x0c00, 0x0000, 0x0000},{0x0ff8, 0x000c, 0x000c, 0x000c, 0x0ff8, 0x0000, 0x0000},{0x0ffc, 0x0038, 0x00e0, 0x0380, 0x0e00, 0x0000, 0x0000},{0x0ff8, 0x000c, 0x00f8, 0x000c, 0x0ff8, 0x0000, 0x0000},
{0x0e1c, 0x0330, 0x01e0, 0x0330, 0x0e1c, 0x0000, 0x0000},{0x0e00, 0x0380, 0x00fc, 0x0380, 0x0e00, 0x0000, 0x0000},{0x0c1c, 0x0c7c, 0x0ccc, 0x0f8c, 0x0e0c, 0x0000, 0x0000}
};
int val;
char ch;
word fbits ;
ch = *stringHell++;
if(rsidTxEnable == 1)
{
rsidTx(freqHell, 5);
}
while (ch != '\0')
{
ch = toupper(int(ch)); // Uppercase
if(ch >= 32 && ch <= 90) // Character is in the range of ASCII space to Z
{
ch -= 32; // Character number starting at 0
for (int i = 0; i < 7; i++) // Scanning each 7 columns of glyph
{
fbits = int(pgm_read_word(&GlyphTab[int(ch)][i])); // Get each column of glyph
for (int b = 0; b < 14; b++) // Scanning each 14 rows
{
val = bitRead(fbits,b); // Get binary state of pixel
DDS.setfreq(freqHell * val, 0); // Let's transmit (or not if pixel is clear)
delayMicroseconds(4002) ; // Gives the baud rate. 4045µs minus DDS loading time, 4002µs in SPI mode, 3438µs in software serial mode
}
}
}
ch = *stringHell++; // Next character in string
}
DDS.setfreq(0, 0);
}
/*******************************************************
* WSPR
********************************************************/
void HFBEACON::wsprTx(long freqWspr, char * callWsprTx, char * locWsprTx, char * powWsprTx)
{
if(wsprSymbGen == 0)
{
wsprEncode(callWsprTx, locWsprTx, powWsprTx);
}
if(wsprSymbGen == 1)
{
int a = 0;
for (int element = 0; element < 162; element++) { // For each element in the message
a = int(wsprSymb[element]); // get the numerical ASCII Code
DDS.setfreq(freqWspr + a * 1.4548, 0);
delay(682);
}
DDS.setfreq(0, 0);
}
}
/*************************************************************************
* WSPR message encoder
* http://www.g4jnt.com/Coding%5CWSPR_Coding_Process.pdf
**************************************************************************/
void HFBEACON::wsprEncode(char * callWsprProc, char * locWsprProc, char * powWsprProc)
{
char callsign[] = " ";
char encode_call[] = " ";
char locator[] = " ";
char power[] = "00";
byte pwr_lvl;
char ch;
int counter = 0;
ch = *callWsprProc++;
while(ch != '\0')
{
callsign[counter] = ch;
ch = *callWsprProc++;
counter++;
}
counter = 0;
ch = *locWsprProc++;
while(ch != '\0')
{
locator[counter] = ch;
ch = *locWsprProc++;
counter++;
}
counter = 0;
ch = *powWsprProc++;
while(ch != '\0')
{
power[counter] = ch;
ch = *powWsprProc++;
counter++;
}
for(int i = 0; i < 6; i++){
if(callsign[i] == ' ')
{
callsign[i] = callsign[i] + 4;
}
else if(callsign[i] > 47 && callsign[i] < 58)
{
callsign[i] = callsign[i] - 48;
}
else if(callsign[i] > 64 && callsign[i] < 91)
{
callsign[i] = callsign[i] - 55;
}
else if(callsign[i] > 96 && callsign[i] < 123)
{
callsign[i] = callsign[i] - 87;
}
}
if(callsign[2] > 9){
encode_call[0] = 36;
for(int i = 0; i < 5; i++)
{
encode_call[i + 1] = callsign [i];
}
}
/*****************************************************************
* Callsign encoding
*****************************************************************/
unsigned long N;
N = encode_call[0];
N = 36 * N + encode_call[1];
N = 10 * N + encode_call[2];
N = 27 * N + encode_call[3] - 10;
N = 27 * N + encode_call[4] - 10;
N = 27 * N + encode_call[5] - 10;
/*****************************************************************
* Locator encoding
*****************************************************************/
unsigned long M1;
for(int i = 0; i < 4; i++){
if(locator[i] > 64 && locator[i] < 83){
locator[i] = locator[i] - 65;
}
else if(locator[i] > 96 && locator[i] < 123)
{
locator[i] = locator[i] - 97;
}
else if(locator[i] > 47 && locator[i] < 58){
locator[i] = locator[i] - 48;
}
}
M1 = 180 * (179 - 10 * locator[0] - locator[2]) + 10 * locator[1] + locator[3];
/*****************************************************************
* Power encoding
*****************************************************************/
pwr_lvl = 10 * (power[0] - '0') + power[1] - '0';
/*****************************************************************
* Locator + power packing
*****************************************************************/
unsigned long M;
M = 128 * M1 + pwr_lvl + 64;
/*****************************************************************
* Bit packing
*****************************************************************/
unsigned char c[11];
c[0] = N >> 20; // 8 MSB
c[1] = N >> 12; // 8 next
c[2] = N >> 4; // 8 next
c[3] = N << 4; // 4 LSB -> 4 MSB c[3]
c[3] = c[3] + (0x0f & M >> 18);
c[4] = M >> 10;
c[5] = M >> 2;
c[6] = M << 6;
c[7] = 0;
c[8] = 0;
c[9] = 0;
c[10] = 0;
/*****************************************************************
* Convolutional encoding
*****************************************************************/
unsigned long reg = 0;
int conv;
int conv_byte = 0;
int compt_bits = 0;
byte S[162];
conv = c[0];
int m = 0;
for(int i = 0; i < 81; i++){
if(compt_bits % 8 == 0){
conv = c[conv_byte];
conv_byte++;
}
reg = reg | bitRead(conv, 7);
S[m++] = parity(reg & 0xf2d05351);
S[m++] = parity(reg & 0xe4613c47);
compt_bits++;
conv = conv << 1;
reg = reg << 1;
}
/*****************************************************************
* Interleaving
*****************************************************************/
byte D[162];
int p = 0;
byte temp = 0;
int j = 0;
for(int i = 0; i < 256; i++)
{
j = i;
temp = j;
for(int k = 0; k < 8; k++){
bitWrite(j, k , bitRead(temp, 7 - k));
}
if(j < 162){
D[j] = S[p];
p++;
}
}
/*****************************************************************
* Merge with sync vector
*****************************************************************/
static byte Sync[] PROGMEM = {1,1,0,0,0,0,0,0,1,0,0,0,1,1,1,0,0,0,1,0,0,1,0,1,1,1,1,0,0,0,0,0,0,0,1,0,0,1,0,1,0,0,0,0,0,0,1,0,1,1,
0,0,1,1,0,1,0,0,0,1,1,0,1,0,0,0,0,1,1,0,1,0,1,0,1,0,1,0,0,1,0,0,1,0,1,1,0,0,0,1,1,0,1,0,1,0,0,0,1,0,
0,0,0,0,1,0,0,1,0,0,1,1,1,0,1,1,0,0,1,1,0,1,0,0,0,1,1,1,0,0,0,0,0,1,0,1,0,0,1,1,0,0,0,0,0,0,0,1,1,0,
1,0,1,1,0,0,0,1,1,0,0,0};
for(int i = 0; i < 162; i++){
wsprSymb[i] = pgm_read_word(&Sync[i]) + 2 * D[i];
}
wsprSymbGen = 1;
}
/*****************************************************************
* Parity calculator
*****************************************************************/
byte HFBEACON::parity(unsigned long tempo){
byte par = 0;
for(int k = 0; k < 32; k++){
par = par ^ (tempo & 0x01);
tempo = tempo >> 1;
}
return par;
}