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/** @file main.c
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* @date 2023-09-05
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* @author Tom, DL7BJ
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* @version 1.03
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* @brief BJ-Keyer, ein elektronischer Morsekeyer
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*
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* Morsekeyer für 3 Handtasten und 3 Paddle mit einem
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* Sinus Mithörton und Ausgängen für 2 Transceiver
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*
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* OLED Funktionen von https://github.com/Sylaina/oled-display
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* Encoder Funktionen von https://www.mikrocontroller.net/articles/Drehgeber
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*
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*
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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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2023-08-25 DL7BJ Code dokumentiert und aufgeräumt
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2023-09-03 DL7BJ Funktionen für die Speichertasten hinzugefügt
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2023-09-04 DL7BK Programmierung der Textspeicher über serielle Schnittstelle
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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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@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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/** @fn void InitTimer(void)
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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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*
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* @param none
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* @retval none
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*/
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void InitTimer(void)
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{
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cli(); // Interrupts verbieten
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TCCR2A = 0; // Timer 2 PWM
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TCCR2B = 0; // Pulswellenmodulation
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sbi(TCCR2B,CS20); // kein Prescaler
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sbi(TCCR2A,COM2A1); // Clear OC2A on compare match
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sbi(TCCR2A,WGM20); // Fast PWM Mode
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sbi(TCCR2A,WGM21); // Fast PWM Mode
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OCR2A = 0x80; // Initialer Wert
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sbi(DDRB,PB3); // Datenrichtungsregister PB3 Ausgang
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cbi(TIMSK2,OCIE0A); // Timer 2 nicht starten
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TCCR1A = 0; TCCR1B = 0; TIMSK1 = 0; // Timer 1 für die Sinus Hüllkurve
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sbi(TCCR1B,WGM12); // CTC Mode
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sbi(TCCR1B,CS11); // Prescaling 8
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OCR1A = 51; // Initialer Wert für 600Hz Ton
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sbi(TIMSK1,OCIE1A); // Timer 1 Sinus Hüllkurve einschalten
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TCCR0A = 0; TCCR0B = 0; TCNT0 = 0; // Timer 0 1ms für diverse Zähler
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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(); // Interrupts erlauben
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}
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/** @fn void Init(void)
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* @brief Initialisierung aller Variablen, Timer
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* @param none
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* @retval none
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*/
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void Init(void)
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{
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cli(); // disable all interrupts
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bState.SendStatus = SENDING_NOTHING;
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// Alle Ports auf Eingang
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DDRB = 0x00; DDRD = 0x00; DDRC = 0x00;
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// Interne PullUps einschalten
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sbi(PORTB,PB0); // Encoder A
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sbi(PORTB,PB1); // Encoder B
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sbi(PORTB,PB2); // Encoder Switch
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// Eingänge für Speichertasten
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sbi(PORTD,MEM1); // PD5
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sbi(PORTD,MEM2); // PD6
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sbi(PORTD,MEM3); // PD7
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sbi(PORTC,MEM4); // PC0
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sbi(PORTB,MEM5); // PB5
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// Ausgänge festlegen
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// PORTB Ausgänge
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sbi(DDRB,PB3); // PWM
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sbi(DDRB,AUDIO_EN); // Audio Verstärker
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sbi(PORTB,AUDIO_EN); // Audio Verstärker Enable
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// PORTC Ausgänge
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sbi(DDRC,MORSE_LED); // LED
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sbi(DDRC,TRX1); // Transceiver 1
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sbi(DDRC,TRX2); // Transceiver 2
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// Serielle Schnittstelle
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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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// Alle Timer Variablen rücksetzen
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StateRiseTimeCounter = 0;
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MenuCtrlTimer = 0;
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EncoderTimer = 0;
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StoreEEpromTimer = 0;
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t_elementlength = 0;
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t_delayms = 0;
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// Timer initialisieren
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InitTimer();
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// Encoder initialisieren
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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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bState.WriteEEprom = 0;
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sei(); // enable all interrupts
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}
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/** @fn ISR(TIMER1_COMPA_vect)
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* @brief 8 Bit Timer 1 ISR routine
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*
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* Der Timer 1 lädt die Sinuswerte für die PWM
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*
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* @param none
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* @retval none
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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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/** @fn ISR(TIMER0_COMPA_vect)
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* @brief 8 Bit Timer 0 ISR routine
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*
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* Der Timer 0 mit CTC Interrupt läuft mit einem Takt
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* von einer Millisekunde Es werden mehrere Werte innerhalb
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* des Timerinterrupts verarbeitet.
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*
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* @param none
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* @retval none
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*/
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ISR(TIMER0_COMPA_vect)
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{
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t_delayms++; // 16Bit Zähler für Warteschleifen
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t_elementlength++; // Länge eines Symbols
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StoreEEpromTimer++; // 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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// 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((StoreEEpromTimer > 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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TimerButtonPressed++;
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if(StateButtonPressed == KEY_PRESSED_DEBOUNCE)
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{
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if(TimerButtonPressed > 250)
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{
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StateButtonPressed = KEY_PRESSED;
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}
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}
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}
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/** @fn ISR(USART_RX_vect)
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* @brief Interrupt RX serielle Schnittstelle
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*
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* @param none
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* @retval 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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SerialReceive(data);
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}
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/** @fn void ReStart(void)
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* @brief Initialisierung bei Reset und Power On
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* @param none
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* @retval none
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*/
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void ReStart(void)
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{
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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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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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bState.Automatic = 0;
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bState.WriteMsgEEprom = 0;
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|
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bState.WriteEEprom = 0;
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|
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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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SetRatio();
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|
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SetWeight();
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for(uint8_t i = 1; i < 6; i++)
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ReadMsgEEprom(i);
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|
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}
|
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|
|
/** @fn int main(void)
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|
|
|
* @brief One Infinite Loop
|
|
|
|
|
* @param none
|
|
|
|
|
* @retval none
|
|
|
|
|
*/
|
|
|
|
|
int main(void)
|
|
|
|
|
{
|
|
|
|
|
ReStart();
|
|
|
|
|
SerialReset();
|
|
|
|
|
while(1)
|
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|
|
|
{
|
|
|
|
|
// Wenn Geschwindigkeit verändert und Zeit abgelaufen,
|
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|
|
|
// dann neue Geschwindigkeit im EEprom speichern und
|
|
|
|
|
// Merker löschen.
|
|
|
|
|
if(bState.WriteWpMEEprom)
|
|
|
|
|
{
|
|
|
|
|
WriteEEpromWpM();
|
|
|
|
|
bState.WriteWpMEEprom = 0;
|
|
|
|
|
}
|
|
|
|
|
// Wenn Einstellungen verändert wurden, diese im EEprom
|
|
|
|
|
// speichern
|
|
|
|
|
if(bState.WriteEEprom)
|
|
|
|
|
{
|
|
|
|
|
WriteEEprom();
|
|
|
|
|
bState.WriteEEprom = 0;
|
|
|
|
|
}
|
|
|
|
|
if(bState.WriteMsgEEprom == 2)
|
|
|
|
|
{
|
|
|
|
|
for(uint8_t i = 1; i < 6; i++)
|
|
|
|
|
WriteMsgEEprom(i);
|
|
|
|
|
bState.WriteMsgEEprom = 0;
|
|
|
|
|
SerialReset();
|
|
|
|
|
}
|
|
|
|
|
Drehencoder(); // Drehencoder abfragen
|
|
|
|
|
UpdateDisplay(); // Display aktualisieren
|
|
|
|
|
CheckStraightKey(); // Handtaste auf Betätigung prüfen
|
|
|
|
|
CheckPaddles(); // Paddles auf Betätigung prüfen
|
|
|
|
|
CheckButtons(); // Taster abfragen
|
|
|
|
|
}
|
|
|
|
|
}
|
