W1CDN/KK9JEF_DDS_VFO
1
0
Fork 0
mirror of https://github.com/JeffersGlass/DDS_VFO.git synced 2024-11-27 02:37:37 -06:00
Code Issues Packages Projects Releases Wiki Activity

Create VFO.ino

Browse Source
This commit is contained in:
JeffersGlass 2015-09-21 15:42:29 -05:00
parent 0e1db2eadb
commit e126029540
1 changed files with 130 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

130
VFO.ino Normal file
View File

@ -0,0 +1,130 @@
#include <Encoder.h>
#include <Wire.h>
#include <LiquidCrystal.h>
#include <si5351.h>
//-----------Variables & Declarations---------------
long currFreq = 1000000;
//long steps[] = {1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, 2000, 5000, 10000, 20000, 50000, 100000};
//const int MAX_STEP_INDEX = 15;
//char* stepNames[] = {" 1 hz", " 2 hz", " 5 hz", " 10 hz", " 20 hz", " 50 hz", "100 hz", "200 hz", "500 hz", " 1 Khz", " 2 Khz", " 5 Khz", "10 Khz", "20 Khz", "50 Khz", "100Khz"};
long steps[] = {1, 10, 100, 1000, 10000, 100000, 500000, 1000000, 5000000, 10000000};
const int MAX_STEP_INDEX = 9;
char* stepNames[] = {" 1 hz", " 10 hz", "100 hz", " 1Khz", " 10KHZ", "100Khz", "500Khz", " 1Mhz", " 5Mhz", " 10Mhz"};
int stepIndex = 0;
long lastButtonPress[] = {0,0,0,0,0};
boolean buttonActive[] = {false, false, false, false, false};
const long MIN_FREQ = 8500;
const long MAX_FREQ = 150000000;
//---------LCD SETUP-------//
int PIN_RS = 7;
int PIN_EN = 8;
int PIN_DB4 = 9;
int PIN_DB5 = 10;
int PIN_DB6 = 11;
int PIN_DB7 = 12;
LiquidCrystal lcd(PIN_RS, PIN_EN, PIN_DB4, PIN_DB5, PIN_DB6, PIN_DB7);
//--------Si5351 Declaration---------------//
Si5351 si5351;
//SDA is on pin A4 for Arduino Uno
//SCL is on pin A5 for Arduino Uno
//--------Tuning Knob Interrupt Pins-------//
//Encoder knob(2, 3);
const int PIN_BUTTON_UP = 2;
const int PIN_BUTTON_DOWN = 3;
const int PIN_BUTTON_STEP = 4;
const int BUTTON_DEBOUNCE_TIME = 10; //milliseconds
void setup(){
// inialize LCD, display welcome message
lcd.begin(20, 4);
delay(250);
lcd.setCursor(4, 1);
lcd.print("VFO STARTING");
si5351.init(SI5351_CRYSTAL_LOAD_8PF, 0);
si5351.set_freq(currFreq * 100ULL, 0ULL, SI5351_CLK0);
delay(750);
//knob.write(0);
pinMode(PIN_BUTTON_UP, INPUT);
digitalWrite(PIN_BUTTON_UP, HIGH);
pinMode(PIN_BUTTON_DOWN, INPUT);
digitalWrite(PIN_BUTTON_DOWN, HIGH);
pinMode(PIN_BUTTON_STEP, INPUT);
digitalWrite(PIN_BUTTON_STEP, HIGH);
lcd.clear();
lcd.setCursor(2, 7);
lcd.print("WELCOME!");
delay(500);
}
void loop(){
displayInfo();
delay(200);
if (checkButtonPress(PIN_BUTTON_UP)){currFreq += steps[stepIndex]; currFreq = min(currFreq, MAX_FREQ); si5351.set_freq(currFreq * 100ULL, 0ULL, SI5351_CLK0);}
if (checkButtonPress(PIN_BUTTON_DOWN)){currFreq -= steps[stepIndex]; currFreq = max(currFreq, MIN_FREQ); si5351.set_freq(currFreq * 100ULL, 0ULL, SI5351_CLK0);}
if (checkButtonPress(PIN_BUTTON_STEP)){stepIndex = (stepIndex + 1) % (MAX_STEP_INDEX+1);}
}
void displayInfo(){
lcd.clear();
// frequency information should take up the first 11 spaces on the first line:
if (currFreq >= 100000000) lcd.setCursor(4, 1);
else if (currFreq > 10000000) lcd.setCursor(5, 1);
else lcd.setCursor(6, 1);
int mhz = int(currFreq/ 1000000);
int khz = int((currFreq - (mhz*1000000)) / 1000);
int hz = int(currFreq % 1000);
int khzPad = 0;
if (khz < 100) khzPad++;
if (khz < 10) khzPad++;
int hzPad = 0;
if (hz < 100) hzPad++;
if (hz < 10) hzPad++;
lcd.print(mhz);
lcd.print(".");
for (int i = 0; i < khzPad; i++) lcd.print("0");
lcd.print(khz);
lcd.print(".");
for (int i = 0; i < hzPad; i++) lcd.print("0");
lcd.print(hz);
//Step Information should take the first 11 spaces on the 2nd line
//The first 5 symbols are "STEP:", leaving 6 chars for step info.
lcd.setCursor(4, 3);
lcd.print("STEP:");
lcd.print(stepNames[stepIndex]);
}
boolean checkButtonPress(int pin){
long time = millis();
if (buttonActive[pin] && digitalRead(pin) == HIGH){
buttonActive[pin] = false;
lastButtonPress[pin] = time;
}
else if (digitalRead(pin) == LOW && !buttonActive[pin] && time > lastButtonPress[pin] + BUTTON_DEBOUNCE_TIME){
buttonActive[pin] = true;
lastButtonPress[pin] = time;
return true;
}
return false;
}