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383 lines
11 KiB
C
383 lines
11 KiB
C
/** @brief BJ-Keyer
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Morsekeyer von DL7BJ
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tom@dl7bj.de
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OLED functions from https://github.com/Sylaina/oled-display
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@verbatim
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History
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--------------------------------------------------------------------------
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2012-05-24 DL7BJ erste Version
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2013-05-10 DL7BJ Generierung des Mithörtons als Sinus mit PWM/DDS
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2013-07-15 DL7BJ Änderungen der Keyerfunktionen
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2013-07-19 DL7BJ Beep/Boop (Spielkram)
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2013-10-20 DL7BJ Änderungen der PWM Funktionen für besseren Sinus
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2022-04-10 DL7BJ erste Leiterplatten für Prototyp (bisher Lochraster)
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2022-09-02 DL7BJ viele Softwareänderungen, neuer Filter für PWM
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2022-09-11 DL7BJ Encoder, LC-Display, Frontplatine "entsorgt"
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2023-06-28 DL7BJ Port Anpassungen an neue Leiterplatte V1.01
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2023-07-29 DL7BJ Menü für Einstellungen implementiert
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2023-08-06 DL7BJ Quelltexte umstrukturiert, Aufteilung
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ATMEGA328(P)
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----------
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(PCINT14/_RESET) PC6 -| 1 28|- PC5 (ADC5/SCL/PCINT13)
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(PCINT16/RXD) PD0 -| 2 27|- PC4 (ADC4/SDA/PCINT12)
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(PCINT17/TXT) PD1 -| 3 26|- PC3 (ADC3/PCINT11)
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(PCINT18/INT0) PD2 -| 4 25|- PC2 (ADC2/PCINT10)
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(PCINT19/OC2B/INT1) PD3 -| 5 24|- PC1 (ADC1/PCINT9)
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(PCINT20/XCK/T0) PD4 -| 6 23|- PC0 (ADC0/PCINT8)
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VCC -| 7 22|- GND
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GND -| 8 21|- AREF
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(PCINT6/XTAL1/TOSC1) PB6 -| 9 20|- AVCC
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(PCINT7/XTAL2/TOSC2) PB7 -|10 19|- PB5 (SCK/PCINT5)
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(PCINT21/OC0B/T1) PD5 -|11 18|- PB4 (MISO/PCINT4)
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(PCINT22/OC0A/AIN0) PD6 -|12 17|- PB3 (MOSI/OC2A/PCINT3)
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(PCINT23/AIN1) PD7 -|13 16|- PB2 (SS/OC1B/PCINT2)
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(PCINT0/CLK0/ICP1) PB0 -|14 15|- PB1 (OC1A/PCINT1)
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----------
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Pin 1 - PC6 - Reset Pin 28 - PC5 - SCL Display
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Pin 2 - PD0 - RxD Pin 27 - PC4 - SDA Display
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Pin 3 - PD1 - TxD Pin 26 - PC3 - LED Key
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Pin 4 - PD2 - Left Paddle Pin 25 - PC2 - TRX 2 Out
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Pin 5 - PD3 - Right Paddle Pin 24 - PC1 - TRX 1 Out
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Pin 6 - PD4 - Straight Key Pin 23 - PC0 - Mem 4
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Pin 19 - PB5 - Mem 5
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Pin 11 - PD5 - Mem 1 Pin 18 - PB4 - _Audio SD
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Pin 12 - PD6 - Mem 2 Pin 17 - OC2A - Audio PWM output
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Pin 13 - PD7 - Mem 3 Pin 16 - PB2 - Encoder Switch
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Pin 14 - PB0 - Encoder A Pin 15 - PB1 - Encoder B
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Value 1 2 4 8 32 64 128 255
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Bit 1 2 3 4 5 6 7 8
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Pin 0 1 2 3 4 5 6 7
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@endverbatim
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*/
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#include "main.h"
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// Sinustabelle für PWM mit 64 Werten
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const unsigned char sinewave[] PROGMEM = {
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0x00, 0x01, 0x02, 0x05, 0x0a, 0x0f, 0x15, 0x1d, 0x25, 0x2f, 0x39, 0x43, 0x4f, 0x5a, 0x67, 0x73,
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0x80, 0x8c, 0x98, 0xa5, 0xb0, 0xbc, 0xc6, 0xd0, 0xda, 0xe2, 0xea, 0xf0, 0xf5, 0xfa, 0xfd, 0xfe,
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0xff, 0xfe, 0xfd, 0xfa, 0xf5, 0xf0, 0xea, 0xe2, 0xda, 0xd0, 0xc6, 0xbc, 0xb0, 0xa5, 0x98, 0x8c,
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0x80, 0x73, 0x67, 0x5a, 0x4f, 0x43, 0x39, 0x2f, 0x25, 0x1d, 0x15, 0x0f, 0x0a, 0x05, 0x02, 0x01
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};
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/**
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* \brief Initialsieren der Timer
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*
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* Alle Parameter der Timer basieren auf 16MHz Systemtakt.
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*
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* Timer 0 - 8 Bit timer für 1ms
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* Timer 2 - 8 Bit timer für PWM zur Erzeugung des Sinustons
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* Timer 1A - 16 Bit timer zur Erzeugung der Hüllkurve
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* Timer 1B - 16 Bit timer wird nicht benutzt
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*
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* T - dot duration
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* wpm - Words per Minute based on PARIS
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* Formula T = 1200 / wpm
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* Minimum speed 10 wpm - dot duration 120ms
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* Maximum speed 99 wpm - dot duration 12ms
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*
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*/
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void InitTimer(void)
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{
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cli();
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// Timer 2 PWM
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TCCR2A = 0;
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TCCR2B = 0;
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// No prescaling
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sbi(TCCR2B,CS20);
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// Clear OC2A on compare match
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sbi(TCCR2A,COM2A1);
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// Fast PWM Mode
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sbi(TCCR2A,WGM20);
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sbi(TCCR2A,WGM21);
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// Phase Correct PWM
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//sbi(TCCR2A,WGM22);
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//sbi(TCCR2A,WGM20);
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// Initial value
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OCR2A = 0x80;
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sbi(DDRB,PB3);
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cbi(TIMSK2,OCIE0A);
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// Timer 1 für die Sinus Hüllkurve
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TCCR1A = 0; TCCR1B = 0; TIMSK1 = 0;
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// CTC Mode
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sbi(TCCR1B,WGM12);
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// Prescaling 8
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sbi(TCCR1B,CS11);
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// Output Compare Match Interrupt Enable
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OCR1A = 51; // 600Hz
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sbi(TIMSK1,OCIE1A); // Timer 1 Sinus Hüllkurve einschalten
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// Timer 0 1ms für diverse Zähler
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TCCR0A = 0; TCCR0B = 0; TCNT0 = 0;
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cbi(TCCR0A,WGM00);
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sbi(TCCR0A,WGM01);
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cbi(TCCR0B,WGM02); // CTC Mode 2 Immediate
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cbi(TCCR0B,CS02);
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sbi(TCCR0B,CS01);
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sbi(TCCR0B,CS00); // prescaler 64
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OCR0A = 249; // CTC 1ms
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sbi(TIMSK0,OCIE0A); // Timer 0 1ms einschalten
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sei();
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}
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void Init()
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{
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cli(); // disable all interrupts
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bState.SendStatus = SENDING_NOTHING;
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// PORTB
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DDRB = 0x00;
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// Interne PullUps einschalten
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sbi(PORTB,PB0);
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sbi(PORTB,PB1);
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sbi(PORTB,PB2);
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sbi(PORTB,PB3);
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sbi(PORTB,PB5);
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sbi(PORTB,AUDIO_EN);
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// Ein- und Ausgänge festlegen
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sbi(DDRB,PB3); // PWM
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sbi(DDRB,AUDIO_EN); // Audio Verstärker
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// PORTC
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sbi(DDRC,MORSE_LED);
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// PORTD
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// Ein- und Ausgänge festlegen
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DDRD = 0x00;
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// Interne PullUps für die Eingänge abschalten
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cbi(PORTD,LEFT_PADDLE);
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cbi(PORTD,RIGHT_PADDLE);
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cbi(PORTD,STRAIGHT_KEY);
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LengthOfElement = (uint16_t)1200/bConfig.WpM;
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// Pin Change Interrupts Port D - Keys
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// Alle Pins liegen im PCINT2 Vektor
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// PD4 - StraightKey - PCINT20 - Pin Change Interrupt 20
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// PD3 - Right Paddle - PCINT19 - Pin Change Interrupt 19
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// PD2 - Left Paddle - PCINT18 - Pin Change Interrupt 18
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// sbi(PCICR,PCIE2);
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// sbi(PCMSK2,PCINT18);
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// sbi(PCMSK2,PCINT19);
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// sbi(PCMSK2,PCINT20);
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// Init serial
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UBRR0=UBRR_VALUE; // Set baud rate
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sbi(UCSR0B,TXEN0); // Enable TX
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sbi(UCSR0B,RXEN0); // Enable RX
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sbi(UCSR0B,RXCIE0); // RX complete interrupt
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sbi(UCSR0C,UCSZ01); // no parity, 1 stop bit
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sbi(UCSR0C,UCSZ01); // 8-bit data
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InitTimer();
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EncoderInit();
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// Initialisierung Menüvariablen
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bMenuCtrl.ClrScr = 1;
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bMenuCtrl.Update = 1;
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bMenuCtrl.Config = 0;
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bMenuCtrl.buttonPressed = 0;
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bMenuCtrl.buttonPressedLong = 0;
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bMenuCtrl.WriteEEprom = 0;
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sei(); // enable all interrupts
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}
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ISR(TIMER1_COMPA_vect)
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{
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ocr2a = pgm_read_byte_near(sinewave+icnt);
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icnt++;
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if(StateRiseTime > 0)
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OCR2A = (ocr2a >> StateRiseTime);
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else
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OCR2A = ocr2a;
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if(icnt == SINEWAVELENGTH)
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{
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icnt = 0;
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if(bState.SidetoneOff == 0)
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{
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if(StateRiseTime > 0)
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{
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StateRiseTimeCounter++;
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if(StateRiseTimeCounter > bConfig.RiseTimeCounter)
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StateRiseTime--;
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}
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}
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if(bState.SidetoneOff == 1)
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{
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if(StateRiseTime < bConfig.RiseTime)
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{
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StateRiseTimeCounter++;
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if(StateRiseTimeCounter > bConfig.RiseTimeCounter)
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StateRiseTime++;
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} else {
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OCR2A = 0;
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cbi(TIMSK1,OCIE1A);
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}
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}
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}
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}
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/** @brief 8 Bit Timer 0 ISR routine
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*
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* The Timer 0 CTC interrupt will be fired every millisecond and
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* has a bundle of counter variables for different timings.
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*
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* params: none
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* return: none
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*
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*/
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ISR(TIMER0_COMPA_vect)
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{
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t_delayms++; // 16Bit counter for milliseconds
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t_elementlength++; // Length of element dit/dah
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t_wait++;
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t_timer++;
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StoreEEprom++; // Zähler für Zeitablauf speichern EEprom
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MenuCtrlTimer++; // Zähler für Zeitablauf Einstellungen
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EncoderTimer++; // Zähler für 5ms Drehencoder Timer
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if(t_timer >= L_WAIT)
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{
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t_timer = 0;
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}
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// Alle 5ms den Drehencoder abfragen
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if(EncoderTimer > 5)
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{
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EncoderTimer = 0;
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EncoderPolling();
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// Schalter vom Drehencoder abfragen
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lastButton = EncoderGetButtonState();
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if(lastButton == ButtonPressed_Short)
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{
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bMenuCtrl.buttonPressed = 1;
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}
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if(lastButton == ButtonPressed_Long)
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{
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bMenuCtrl.buttonPressedLong = 1;
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if(bMenuCtrl.Config == 1)
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bState.WriteEEprom = 1;
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}
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}
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// WpM verändert? Nach 5 Sekunden im EEPROM Speichern
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if((StoreEEprom > 1000) && (bState.WpMChanged))
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{
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bState.WriteWpMEEprom = 1;
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bState.WpMChanged = 0;
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}
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// Softwareentprellung für StraightKey
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TimerStraightKeyPressed++;
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if(StateStraightKeyPressed == KEY_PRESSED_DEBOUNCE)
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{
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if(TimerStraightKeyPressed > bConfig.DebounceTime)
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StateStraightKeyPressed = KEY_PRESSED;
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}
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// Softwarentprellung für Paddle
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TimerPaddleDitKeyPressed++;
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if(StatePaddleDitKeyPressed == KEY_PRESSED_DEBOUNCE)
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{
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if(TimerPaddleDitKeyPressed > bConfig.DebounceTime)
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StatePaddleDitKeyPressed = KEY_PRESSED;
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}
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// Softwarentprellung für Paddle
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TimerPaddleDahKeyPressed++;
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if(StatePaddleDahKeyPressed == KEY_PRESSED_DEBOUNCE)
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{
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if(TimerPaddleDahKeyPressed > bConfig.DebounceTime)
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StatePaddleDahKeyPressed = KEY_PRESSED;
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}
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}
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/** \brief 8 Bit Timer 2
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*
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* Timer 2 overflow interrupt
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* Mit diesem Interrupt wird der nächste Wert für die
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* Erzeugung des Sinus für den Mithörton geladen.
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*
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*/
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ISR(TIMER2_OVF_vect)
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{
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/* nothing */
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}
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/** @brief Interrupt RX serielle Schnittstelle
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* @param none
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* @return none
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*/
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ISR(USART_RX_vect)
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{
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unsigned char data;
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data = UDR0;
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SerialWriteChar(data);
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}
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/** @brief Initialisierung bei Reset und Neustart
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* @param none
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* @return none
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*/
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void ReStart(void)
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{
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MenuCtrlTimer = 0;
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t_delayms = 0;
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bState.SendStatus = SENDING_NOTHING;
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Init();
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DisplayVersion();
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ReadEEprom();
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WpM = bConfig.WpM;
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EncoderPos = bConfig.WpM;
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EncoderWrite(bConfig.WpM);
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EncoderPosConfig = 1;
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SetFrequency(bConfig.SidetoneFreq);
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SetRatio(0);
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KeyerMode = bConfig.KeyerMode;
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PaddleMode = bConfig.Reverse;
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bState.KeyTX = 1;
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bState.KeyState = 0;
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if(bConfig.SidetoneEnabled)
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SidetoneEnable();
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else
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SidetoneDisable();
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}
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/** @brief main()
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* @param none
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* @return none
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*/
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int main(void)
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{
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ReStart();
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SerialAbout();
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SerialInfo();
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while(1)
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{
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Drehencoder();
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// Wenn Geschwindigkeit verändert und Zeit abgelaufen,
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// dann im EEprom speichern und Merker löschen.
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if(bState.WriteWpMEEprom)
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{
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sprintf(sdebug," %i WpM in EEprom speichern\r\n", bConfig.WpM);
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SerialWriteString(sdebug);
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WriteEEpromWpM();
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bState.WriteWpMEEprom = 0;
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}
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if(bState.WriteEEprom)
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{
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sprintf(sdebug,"Einstellungen in EEprom speichern\r\n");
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SerialWriteString(sdebug);
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WriteEEprom();
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bState.WriteEEprom = 0;
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}
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UpdateDisplay();
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CheckStraightKey();
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CheckPaddles();
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DitDahBuffers();
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}
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}
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