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//Software for Zachtek for the WSPR-TX_LP1 product withh product number 1011. This board is also known as "WSPR Transmitter Experimenters version"
//There are two different flawors of firmware for this board.
//1: This code with hardcoded Callsign and Power data that just transmitt on one single band. It is smaller in size and simpler in many ways so for
// experimenters that want to modify the code, expand, add sensors etc etc, this might be easier to use.
//2: The regular version that is designed to be used with a PC software to set all the data like callsign, power level, band hopping etc
// To acheive this it uses a Serial API and stores settings in EEPROM. It can do more but it is much bigger and can be hard to understand for the beginner.
//The Version of this software is stored in the constant "softwareversion" and is displayed on the Serialport att startup
//
//To compile you need to install several libraries, se below in the #include section what they are and download them using The Library manager in the Arduino IDE or use the direct URL
//For Arduino Pro Mini 3.3V 8MHz.
//
// Version History
// 1.05 initial Release
// 10.06 Disabled transmission if callsing was not changed (variable "call[]" on row 115 sets callsign), added TXPause variable to set duty cycle of transmission.
//
//The WSPR coding is based on Jason Mildrums example code. See his orgiginal Copyright text below the line.
//Harry "deBug" Zachrisson of ZachTek 2018
//-----------------------------------------------------------------
// WSPR beacon for Arduino, by Jason Milldrum NT7S.
// Original code based on Feld Hell beacon for Arduino by Mark
// Vandewettering K6HX, adapted for the Si5351A by Robert
// Liesenfeld AK6L <ak6l@ak6l.org>.
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject
// to the following conditions:
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
#include <TinyGPS++.h> //TinyGPS++ library by Mikal Hart https://github.com/mikalhart/TinyGPSPlus
#include <JTEncode.h> //JTEncode by NT7S https://github.com/etherkit/JTEncode
#include <SoftwareSerial.h> //Arduino SoftSerial
void i2cInit();
uint8_t i2cSendRegister(uint8_t reg, uint8_t data);
uint8_t i2cReadRegister(uint8_t reg, uint8_t *data);
#define I2C_START 0x08
#define I2C_START_RPT 0x10
#define I2C_SLA_W_ACK 0x18
#define I2C_SLA_R_ACK 0x40
#define I2C_DATA_ACK 0x28
#define I2C_WRITE 0b11000000
#define I2C_READ 0b11000001
#define SI5351A_H
#define SI_CLK0_CONTROL 16 // Register definitions
#define SI_CLK1_CONTROL 17
#define SI_CLK2_CONTROL 18
#define SI_SYNTH_PLL_A 26
#define SI_SYNTH_PLL_B 34
#define SI_SYNTH_MS_0 42
#define SI_SYNTH_MS_1 50
#define SI_SYNTH_MS_2 58
#define SI_PLL_RESET 177
#define SI_R_DIV_1 0b00000000 // R-division ratio definitions
#define SI_R_DIV_2 0b00010000
#define SI_R_DIV_4 0b00100000
#define SI_R_DIV_8 0b00110000
#define SI_R_DIV_16 0b01000000
#define SI_R_DIV_32 0b01010000
#define SI_R_DIV_64 0b01100000
#define SI_R_DIV_128 0b01110000
#define SI_CLK_SRC_PLL_A 0b00000000
#define SI_CLK_SRC_PLL_B 0b00100000
#define XTAL_FREQ 25000026 // Crystal frequency for a certain board in Hertz, change to fit your induvidual TCXO
//defines for TX Frequeny of WSPR on the HAM bands
#define WSPR_TONE_SPACING 146 // ~1.46 Hz Tone spacng in centiHz
#define WSPR_DELAY 683 // Delay value for WSPR delay in milliseconds
#define WSPR_FREQ23cm 18521450000ULL //23cm 1296.501,500MHz (7th overtone, not implemented)
#define WSPR_FREQ70cm 14410050000ULL //70cm 432.301,500MHz (3rd overtone, not implemented)
#define WSPR_FREQ2m 14449000000ULL //2m 144.490,000MHz
#define WSPR_FREQ4m 5029450000ULL //6m 50.294,500MHz
#define WSPR_FREQ17m 1810610000ULL //17m 18.106,100MHz
#define WSPR_FREQ20m 1409710000ULL //20m 14.097,100MHz
#define WSPR_FREQ30m 1014020000ULL //30m 10.140,200MHz
#define WSPR_FREQ40m 704010000ULL //40m 7.040,100MHz
#define WSPR_FREQ80m 359410000ULL //80m 3.394,100MHz
#define WSPR_FREQ160m 183810000ULL //160m 1.838,100MHz
#define WSPR_FREQ630m 47570000ULL //630m 475.700kHz
#define WSPR_FREQ2190m 13750000ULL //2190m 137.500kHz
// Hardware defines
#define LEDIndicator1 4 //Yellow LED to indicator that blinks at different rates depending on GPS Lock, waiting for time to go to top of minute, Transmitting etc
#define TransmitLED 8 //Red LED next to RF out SMA that will turn on when Transmitting
const char softwareversion[] = "1.06" ; //Version of this program, sent to serialport at startup
// Enumerations
// Class instantiation
JTEncode jtencode;
// The TinyGPS++ object
TinyGPSPlus gps;
// The serial connection to the GPS device
SoftwareSerial GPSSerial(2, 3); //GPS Serial port, RX on pin 2, TX on pin 3
void si5351aOutputOff(uint8_t clk);
void si5351aSetFrequency(uint32_t frequency);
//*********************************************************************************************
//----------------------- Set Transmit Frequency and Amateur call sign here--------------------
//*********************************************************************************************
char call[] = "AA0AAA"; //**********Set your call sign here **************
const uint64_t WSPR_DEFAULT_FREQ = WSPR_FREQ20m; // Set this to one of the defined WSPR band constants, or set to any frequency in centiHertz
uint8_t dbm = 23; //Output power in dBm. The WSPR-TX gives out about 24dBm after Low Pass filtering so 23 is closest value in WSPR coding, change this if you have an attenuater or Amplifier connected
unsigned long TXPause=180000; //numer of milliseconds to pause after a trasnmission block (sets duty cycle of the trasnmission, avoid 100%). 100=100%, 20000=50%, 180000=33%, 300000=25% duty cycle
char loc[] = "AB01"; //If you dont want to use the GPS provided locator you can hard code a locator here, 4 chars only. You will still need the GPS for timing - Only used if LocatorByGPS=false
boolean LocatorByGPS = true; //Set to false to disable automatic location by GPS and switch to use the "loc" value
//''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
char MHLocator[] = "AA68BB";// Dont change, this is only here to allocate memory, will be changed by the GPS position and Maidenhead calculations.
uint8_t tx_buffer[180];
uint8_t symbol_count;
uint16_t tone_delay, tone_spacing;
uint64_t freq;
void setup()
{
// Set the proper frequency, tone spacing, symbol count, and
// tone delay depending on mode
freq = WSPR_DEFAULT_FREQ;
symbol_count = WSPR_SYMBOL_COUNT; // From the library defines
tone_spacing = WSPR_TONE_SPACING;
tone_delay = WSPR_DELAY;
bool i2c_found;
//Initialize Arduinos Serial port
Serial.begin (9600);
delay(500);//Wait for Serialport to be initialized properly
GPSSerial.begin(9600); // //The GPS Serial port
//Output Initialization text on the serial port
Serial.print(F("Zachtek WSPR-TX_LP1 -Hard Codeed Info- Software version: "));
Serial.println(softwareversion);
Serial.println(F("Initializing.."));
Serial.print(F("Callsign set to "));
Serial.println(call);
Serial.println(F("Maidenhead postion will be set by GPS"));
Serial.print(F("Power Data set to "));
Serial.print(dbm);
Serial.println(F("dBm"));
Serial.print (F("Frequency set to "));
Serial.print (uint64ToStr((freq / 100ULL), false));
Serial.println(F("Hz +/-100Hz random at every TX"));
Serial.println(F("Initializing.."));
pinMode(TransmitLED, OUTPUT);
pinMode(LEDIndicator1, OUTPUT);
Serial.println(F("Blinking Yellow LED indicator"));
for (int i = 0; i <= 30; i++) {
digitalWrite(LEDIndicator1, HIGH);
delay (20);
digitalWrite(LEDIndicator1, LOW);
delay (20);;
}
Serial.println(F("Initializing I2C"));
i2cInit();
Serial.println(F("Initializing Si5351"));
si5351aSetFrequency(2000000000ULL);
//delay(10000);
si5351aOutputOff(SI_CLK0_CONTROL);
// Encode the message in the transmit buffer
// This is RAM intensive and should be done separately from other subroutines
//set_tx_buffer();
Serial.println(F("Initialization is complete."));
Serial.println();
}
void loop()
{
static double Lat;
static double Lon;
static int GPSH;
static int GPSM;
static int GPSS;
//encode ();
while (GPSSerial.available()) {
gps.encode(GPSSerial.read());
if (gps.location.isUpdated())
{
//Serial.println(F("Is updated"));
GPSH = gps.time.hour();
GPSM = gps.time.minute();
GPSS = gps.time.second();
if (LocatorByGPS)
{
//Serial.println(F("LocatorByGPS"));
Lat = gps.location.lat();
// Serial.println(F("Lat set"));
Lon = gps.location.lng();
//Serial.print(F("Lat, Lon= "));
//Serial.print (Lat);
//Serial.println (Lon);
//Serial.print(" ");
// Serial.println(F("Before CalcLocator"));
calcLocator (Lat, Lon);
// Serial.println(F("After CalcLocator"));
Serial.print (F("GPS Fix accuired - Maidenhead locator is "));
Serial.print(MHLocator);
loc[0] = MHLocator[0]; loc[1] = MHLocator[1]; loc[2] = MHLocator[2]; loc[3] = MHLocator[3];
Serial.print (F(" (using "));
Serial.print(loc);
Serial.println (F(")"));
LocatorByGPS = false;
long seed = (long) (((long)Lat * 10000) + ((long)Lon * 10000));
randomSeed(seed);
// Encode the message in the transmit buffer so we are prepared to transmit
// This is RAM intensive and should be done separately from other subroutines
set_tx_buffer();
Serial.println (F("Waiting for start of even minute to start WSPR transmission block"));
}
if ((GPSS == 0) && ((GPSM % 2) == 0))//If second is zero at even minute then start WSPR transmission
{
Serial.println(F("Top of even minute."));
Serial.print(F("Transmitting for 1 Minute and 50 seconds at frequency :"));
freq = WSPR_DEFAULT_FREQ + (100ULL * random (-100, 100));
Serial.print(uint64ToStr(freq / 100, false));
Serial.println(F("Hz"));
encode ();
Serial.print(F("Pausing transmission for "));
Serial.print(TXPause);
Serial.println(F(" milliseconds to give room to other users on the WSPR segment"));
smartdelay(TXPause);//Pause for some time to give a duty cycle on the transmit. 2000=100%, 20000=50%, 130000=33%
Serial.println (F("Waiting for start of even minute to start WSPR transmission block"));
}
else //Dubble-blink to indicate waiting for top of minute
{
Serial.print (GPSH);
Serial.print (F(":"));
Serial.print (GPSM);
Serial.print (F(":"));
Serial.print (GPSS);
Serial.println( );
//Serial.println (F("Waiting for WSPR timeslot."));
digitalWrite(LEDIndicator1, HIGH);
smartdelay (100);
digitalWrite(LEDIndicator1, LOW);
smartdelay (100);
digitalWrite(LEDIndicator1, HIGH);
smartdelay (100);
digitalWrite(LEDIndicator1, LOW);
smartdelay(300);
}
}
if (gps.location.isValid())
{
//digitalWrite(LEDIndicator1, HIGH); // turn the LED on
}
else
{
// //singelblink to indicate waiting for GPS Lock
digitalWrite(LEDIndicator1, HIGH); // turn the LED on
smartdelay(100);
digitalWrite(LEDIndicator1, LOW); // turn the LED off
Serial.println(F("Waiting for GPS location fix. "));
smartdelay(500);
}
}
}
// Loop through the string, transmitting one character at a time.
void encode()
{
uint8_t i;
unsigned long startmillis;
unsigned long endmillis;
boolean TXEnabled=true;
// Send WSPR for two minutes
digitalWrite(LEDIndicator1, HIGH);
if ((call[0]=='A') && (call[1]=='A') && (call[2]=='0') && (call[3]=='A') && (call[4]=='A') && (call[5]=='A')) //Do not actually key the transmitter if the callsign has not been changed from the default one AA0AAA
{
Serial.println(F("Callsign is not changed from the default one, Transmit is disabled"));
Serial.println(F("Recompile this software with your Callsign to enable transmission"));
TXEnabled=false;
}
startmillis = millis();
for (i = 0; i < symbol_count; i++)
{
endmillis = startmillis + ((i + 1) * (unsigned long) tone_delay) ;
uint64_t tonefreq;
tonefreq = freq + ((tx_buffer[i] * tone_spacing));
if (TXEnabled) si5351aSetFrequency(tonefreq);
//wait untill tone is transmitted for the correct amount of time
while (millis() < endmillis) {
//just wait
}
}
// Turn off the output
// Switches off Si5351a output
si5351aOutputOff(SI_CLK0_CONTROL);
digitalWrite(LEDIndicator1, LOW);
Serial.println(F("TX Off"));
}
void set_tx_buffer()
{
// Clear out the transmit buffer
memset(tx_buffer, 0, sizeof(tx_buffer));
jtencode.wspr_encode(call, loc, dbm, tx_buffer);
}
//Maidenhead code from Ossi Väänänen https://ham.stackexchange.com/questions/221/how-can-one-convert-from-lat-long-to-grid-square
void calcLocator(double lat, double lon) {
int o1, o2, o3;
int a1, a2, a3;
double remainder;
// longitude
remainder = lon + 180.0;
o1 = (int)(remainder / 20.0);
remainder = remainder - (double)o1 * 20.0;
o2 = (int)(remainder / 2.0);
remainder = remainder - 2.0 * (double)o2;
o3 = (int)(12.0 * remainder);
// latitude
remainder = lat + 90.0;
a1 = (int)(remainder / 10.0);
remainder = remainder - (double)a1 * 10.0;
a2 = (int)(remainder);
remainder = remainder - (double)a2;
a3 = (int)(24.0 * remainder);
MHLocator[0] = (char)o1 + 'A';
MHLocator[1] = (char)a1 + 'A';
MHLocator[2] = (char)o2 + '0';
MHLocator[3] = (char)a2 + '0';
MHLocator[4] = (char)o3 + 'A';
MHLocator[5] = (char)a3 + 'A';
}
// This custom version of delay() ensures that the gps object
// is being "fed".
static void smartdelay(unsigned long ms)
{
unsigned long start = millis();
do
{
while (GPSSerial.available())
gps.encode(GPSSerial.read());
} while (millis() - start < ms);
}
uint8_t i2cStart()
{
TWCR = (1 << TWINT) | (1 << TWSTA) | (1 << TWEN);
while (!(TWCR & (1 << TWINT))) ;
return (TWSR & 0xF8);
}
void i2cStop()
{
TWCR = (1 << TWINT) | (1 << TWEN) | (1 << TWSTO);
while ((TWCR & (1 << TWSTO))) ;
}
uint8_t i2cByteSend(uint8_t data)
{
TWDR = data;
TWCR = (1 << TWINT) | (1 << TWEN);
while (!(TWCR & (1 << TWINT))) ;
return (TWSR & 0xF8);
}
uint8_t i2cByteRead()
{
TWCR = (1 << TWINT) | (1 << TWEN);
while (!(TWCR & (1 << TWINT))) ;
return (TWDR);
}
uint8_t i2cSendRegister(uint8_t reg, uint8_t data)
{
uint8_t stts;
stts = i2cStart();
if (stts != I2C_START) return 1;
stts = i2cByteSend(I2C_WRITE);
if (stts != I2C_SLA_W_ACK) return 2;
stts = i2cByteSend(reg);
if (stts != I2C_DATA_ACK) return 3;
stts = i2cByteSend(data);
if (stts != I2C_DATA_ACK) return 4;
i2cStop();
return 0;
}
uint8_t i2cReadRegister(uint8_t reg, uint8_t *data)
{
uint8_t stts;
stts = i2cStart();
if (stts != I2C_START) return 1;
stts = i2cByteSend(I2C_WRITE);
if (stts != I2C_SLA_W_ACK) return 2;
stts = i2cByteSend(reg);
if (stts != I2C_DATA_ACK) return 3;
stts = i2cStart();
if (stts != I2C_START_RPT) return 4;
stts = i2cByteSend(I2C_READ);
if (stts != I2C_SLA_R_ACK) return 5;
*data = i2cByteRead();
i2cStop();
return 0;
}
// Init TWI (I2C)
//
void i2cInit()
{
TWBR = 92;
TWSR = 0;
TWDR = 0xFF;
PRR = 0;
}
//
// Set up specified PLL with mult, num and denom
// mult is 15..90
// num is 0..1,048,575 (0xFFFFF)
// denom is 0..1,048,575 (0xFFFFF)
//
void setupPLL(uint8_t pll, uint8_t mult, uint32_t num, uint32_t denom)
{
uint32_t P1; // PLL config register P1
uint32_t P2; // PLL config register P2
uint32_t P3; // PLL config register P3
P1 = (uint32_t)(128 * ((float)num / (float)denom));
P1 = (uint32_t)(128 * (uint32_t)(mult) + P1 - 512);
P2 = (uint32_t)(128 * ((float)num / (float)denom));
P2 = (uint32_t)(128 * num - denom * P2);
P3 = denom;
i2cSendRegister(pll + 0, (P3 & 0x0000FF00) >> 8);
i2cSendRegister(pll + 1, (P3 & 0x000000FF));
i2cSendRegister(pll + 2, (P1 & 0x00030000) >> 16);
i2cSendRegister(pll + 3, (P1 & 0x0000FF00) >> 8);
i2cSendRegister(pll + 4, (P1 & 0x000000FF));
i2cSendRegister(pll + 5, ((P3 & 0x000F0000) >> 12) | ((P2 &
0x000F0000) >> 16));
i2cSendRegister(pll + 6, (P2 & 0x0000FF00) >> 8);
i2cSendRegister(pll + 7, (P2 & 0x000000FF));
}
//
// Set up MultiSynth with integer Divider and R Divider
// R Divider is the bit value which is OR'ed onto the appropriate
// register, it is a #define in si5351a.h
//
void setupMultisynth(uint8_t synth, uint32_t Divider, uint8_t rDiv)
{
uint32_t P1; // Synth config register P1
uint32_t P2; // Synth config register P2
uint32_t P3; // Synth config register P3
P1 = 128 * Divider - 512;
P2 = 0; // P2 = 0, P3 = 1 forces an integer value for the Divider
P3 = 1;
i2cSendRegister(synth + 0, (P3 & 0x0000FF00) >> 8);
i2cSendRegister(synth + 1, (P3 & 0x000000FF));
i2cSendRegister(synth + 2, ((P1 & 0x00030000) >> 16) | rDiv);
i2cSendRegister(synth + 3, (P1 & 0x0000FF00) >> 8);
i2cSendRegister(synth + 4, (P1 & 0x000000FF));
i2cSendRegister(synth + 5, ((P3 & 0x000F0000) >> 12) | ((P2 &
0x000F0000) >> 16));
i2cSendRegister(synth + 6, (P2 & 0x0000FF00) >> 8);
i2cSendRegister(synth + 7, (P2 & 0x000000FF));
}
//
// Switches off Si5351a output
// Example: si5351aOutputOff(SI_CLK0_CONTROL);
// will switch off output CLK0
//
void si5351aOutputOff(uint8_t clk)
{
digitalWrite(TransmitLED, LOW);
i2cSendRegister(clk, 0x80); // Refer to SiLabs AN619 to see
//bit values - 0x80 turns off the output stage
}
//
// Set CLK0 output ON and to the specified frequency
// Frequency is in the range 10kHz to 150MHz and given in centiHertz (hundreds of Hertz)
// Example: si5351aSetFrequency(1000000200);
// will set output CLK0 to 10.000,002MHz
//
// This example sets up PLL A
// and MultiSynth 0
// and produces the output on CLK0
//
void si5351aSetFrequency(uint64_t frequency) //Frequency is in centiHz
{
static uint64_t oldFreq;
int32_t FreqChange;
uint64_t pllFreq;
uint32_t xtalFreq = XTAL_FREQ;
uint32_t l;
float f;
uint8_t mult;
uint32_t num;
uint32_t denom;
uint32_t Divider;
uint8_t rDiv;
digitalWrite(TransmitLED, HIGH);
// Serial.print (F("Freq is="));
// Serial.println (uint64ToStr(frequency,false));
if (frequency > 100000000) { //If higher than 1MHz then set output divider to 1
rDiv = SI_R_DIV_1;
Divider = 90000000000ULL / frequency;// Calculate the division ratio. 900MHz is the maximum internal (expressed as deciHz)
//Serial.print (F("Divider="));
//Serial.println (Divider);
pllFreq = Divider * frequency; // Calculate the pllFrequency:
//the Divider * desired output frequency
//Serial.print (F("pllFreq="));
//Serial.println (uint64ToStr(pllFreq,false));
mult = pllFreq / (xtalFreq * 100UL); // Determine the multiplier to
//Serial.print (F("mult="));
//Serial.println (mult);
//get to the required pllFrequency
l = pllFreq % (xtalFreq * 100UL); // It has three parts:
//Serial.print (F("l="));
//Serial.println (l);
f = l; // mult is an integer that must be in the range 15..90
//Serial.print (F("f="));
//Serial.println (f);
f *= 1048575; // num and denom are the fractional parts, the numerator and denominator
//Serial.print (F("f="));
//Serial.println (f);
f /= xtalFreq; // each is 20 bits (range 0..1048575)
//Serial.print (F("f="));
//Serial.println (f);
num = f; // the actual multiplier is mult + num / denom
//Serial.print (F("num="));
//Serial.println (num);
denom = 1048575; // For simplicity we set the denominator to the maximum 1048575
num = num / 100;
}
else // lower freq than 1MHz - use output Divider set to 128
{
rDiv = SI_R_DIV_128;
frequency = frequency * 128ULL; //Set base freq 128 times higher as we are dividing with 128 in the last output stage
Divider = 90000000000ULL / frequency;// Calculate the division ratio. 900,000,000 is the maximum internal
pllFreq = Divider * frequency; // Calculate the pllFrequency:
//the Divider * desired output frequency
mult = pllFreq / (xtalFreq * 100UL); // Determine the multiplier to
//get to the required pllFrequency
l = pllFreq % (xtalFreq * 100UL); // It has three parts:
//Serial.print (F("l="));
//Serial.println (l);
f = l; // mult is an integer that must be in the range 15..90
//Serial.print (F("f="));
//Serial.println (f);
f *= 1048575; // num and denom are the fractional parts, the numerator and denominator
//Serial.print (F("f="));
//Serial.println (f);
f /= xtalFreq; // each is 20 bits (range 0..1048575)
//Serial.print (F("f="));
//Serial.println (f);
num = f; // the actual multiplier is mult + num / denom
//Serial.print (F("num="));
//Serial.println (num);
denom = 1048575; // For simplicity we set the denominator to the maximum 1048575
num = num / 100;
}
// Set up PLL A with the calculated multiplication ratio
setupPLL(SI_SYNTH_PLL_A, mult, num, denom);
// Set up MultiSynth Divider 0, with the calculated Divider.
// The final R division stage can divide by a power of two, from 1..128.
// reprented by constants SI_R_DIV1 to SI_R_DIV128 (see si5351a.h header file)
// If you want to output frequencies below 1MHz, you have to use the
// final R division stage
setupMultisynth(SI_SYNTH_MS_0, Divider, rDiv);
// Reset the PLL. This causes a glitch in the output. For small changes to
// the parameters, you don't need to reset the PLL, and there is no glitch
FreqChange = frequency - oldFreq;
if ( abs(FreqChange) > 100000) //If changed more than 1kHz then reset PLL (completely arbitrary choosen)
{
i2cSendRegister(SI_PLL_RESET, 0xA0);
}
// Finally switch on the CLK0 output (0x4F)
// and set the MultiSynth0 input to be PLL A
i2cSendRegister(SI_CLK0_CONTROL, 0x4F | SI_CLK_SRC_PLL_A);
oldFreq = frequency;
}
/*
uint64_t StrTouint64_t (String InString)
{
uint64_t y = 0;
for (int i = 0; i < InString.length(); i++) {
char c = InString.charAt(i);
if (c < '0' || c > '9') break;
y *= 10;
y += (c - '0');
}
return y;
}
*/
String uint64ToStr (uint64_t p_InNumber, boolean p_LeadingZeros)
{
char l_HighBuffer[7]; //6 digits + null terminator char
char l_LowBuffer[7]; //6 digits + null terminator char
char l_ResultBuffer [13]; //12 digits + null terminator char
String l_ResultString = "";
uint8_t l_Digit;
sprintf(l_HighBuffer, "%06lu", p_InNumber / 1000000L); //Convert high part of 64bit unsigned integer to char array
sprintf(l_LowBuffer, "%06lu", p_InNumber % 1000000L); //Convert low part of 64bit unsigned integer to char array
l_ResultString = l_HighBuffer;
l_ResultString = l_ResultString + l_LowBuffer; //Copy the 2 part result to a string
if (!p_LeadingZeros) //If leading zeros should be romeved
{
l_ResultString.toCharArray(l_ResultBuffer, 13);
for (l_Digit = 0; l_Digit < 12; l_Digit++ )
{
if (l_ResultBuffer[l_Digit] == '0')
{
l_ResultBuffer[l_Digit] = ' '; // replace zero with a space character
}
else
{
break; //We have found all the leading Zeros, exit loop
}
}
l_ResultString = l_ResultBuffer;
l_ResultString.trim();//Remove all leading spaces
}
return l_ResultString;
}