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QCX-SSB.ino
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QCX-SSB.ino
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// QCX-SSB.ino - https://github.com/threeme3/QCX-SSB
//
// Copyright 2019, 2020 Guido PE1NNZ <pe1nnz@amsat.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. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#define VERSION "1.02h"
#define QCX 1 // If you DO NOT have a QCX then comment-out (add two-slashes // in the beginning of this line)
// QCX pin defintions
#define LCD_D4 0 //PD0 (pin 2)
#define LCD_D5 1 //PD1 (pin 3)
#define LCD_D6 2 //PD2 (pin 4)
#define LCD_D7 3 //PD3 (pin 5)
#define LCD_EN 4 //PD4 (pin 6)
#define FREQCNT 5 //PD5 (pin 11)
#define ROT_A 6 //PD6 (pin 12)
#define ROT_B 7 //PD7 (pin 13)
#define RX 8 //PB0 (pin 14)
#define SIDETONE 9 //PB1 (pin 15)
#define KEY_OUT 10 //PB2 (pin 16)
#define SIG_OUT 11 //PB3 (pin 17)
#define DAH 12 //PB4 (pin 18)
#define DIT 13 //PB5 (pin 19)
#define AUDIO1 14 //PC0/A0 (pin 23)
#define AUDIO2 15 //PC1/A1 (pin 24)
#define DVM 16 //PC2/A2 (pin 25)
#define BUTTONS 17 //PC3/A3 (pin 26)
#define LCD_RS 18 //PC4 (pin 27)
#define SDA 18 //PC4 (pin 27)
#define SCL 19 //PC5 (pin 28)
//#define NTX 11 //PB3 (pin 17) - experimental: LOW on TX
/*
// UCX installation: On blank chip, use (standard Arduino Uno) fuse settings (E:FD, H:DE, L:FF), and use customized Optiboot bootloader for 20MHz clock, then upload via serial interface (with RX, TX and DTR lines connected to pin 1, 2, 3 respectively)
// UCX pin defintions
+#define SDA 3 //PD3 (pin 5)
+#define SCL 4 //PD4 (pin 6)
+#define ROT_A 6 //PD6 (pin 12)
+#define ROT_B 7 //PD7 (pin 13)
+#define RX 8 //PB0 (pin 14)
+#define SIDETONE 9 //PB1 (pin 15)
+#define KEY_OUT 10 //PB2 (pin 16)
+#define NTX 11 //PB3 (pin 17)
+#define DAH 12 //PB4 (pin 18)
+#define DIT 13 //PB5 (pin 19)
+#define AUDIO1 14 //PC0/A0 (pin 23)
+#define AUDIO2 15 //PC1/A1 (pin 24)
+#define DVM 16 //PC2/A2 (pin 25)
+#define BUTTONS 17 //PC3/A3 (pin 26)
// In addition set:
#define OLED 1
#define ONEBUTTON 1
#undef DEBUG
adjust I2C and I2C_ ports,
ssb_cap=1; dsp_cap=2;
#define _DELAY() for(uint8_t i = 0; i != 5; i++) asm("nop");
#define F_XTAL 20004000
#define F_CPU F_XTAL
experimentally: #define AUTO_ADC_BIAS 1
*/
#include <avr/sleep.h>
#include <avr/wdt.h>
//FUSES = { .low = 0xFF, .high = 0xD6, .extended = 0xFD }; // Fuse settings should be these at programming.
class LCD : public Print { // inspired by: http://www.technoblogy.com/show?2BET
public: // LCD1602 display in 4-bit mode, RS is pull-up and kept low when idle to prevent potential display RFI via RS line
#define _dn 0 // PD0 to PD3 connect to D4 to D7 on the display
#define _en 4 // PC4 - MUST have pull-up resistor
#define _rs 4 // PC4 - MUST have pull-up resistor
//#define LCD_RS_HI() DDRC &= ~(1 << _rs); // RS high (pull-up)
//#define LCD_RS_LO() DDRC |= 1 << _rs; // RS low (pull-down)
#define LCD_RS_LO() PORTC &= ~(1 << _rs); // RS low
#define LCD_RS_HI() PORTC |= (1 << _rs); // RS high
#define LCD_EN_LO() PORTD &= ~(1 << _en); // EN low
#define LCD_EN_HI() PORTD |= (1 << _en); // EN high
#define LCD_PREP_NIBBLE(b) (PORTD & ~(0xf << _dn)) | (b) << _dn | 1 << _en // Send data and enable high
void begin(uint8_t x = 0, uint8_t y = 0){ // Send command , make sure at least 40ms after power-up before sending commands
bool reinit = (x == 0) && (y == 0);
DDRD |= 0xf << _dn | 1 << _en; // Make data, EN outputs
DDRC |= 1 << _rs;
//PORTC &= ~(1 << _rs); // Set RS low in case to support pull-down when DDRC is output
delayMicroseconds(50000); // *
LCD_RS_LO(); LCD_EN_LO();
cmd(0x33); // Ensures display is in 8-bit mode
delayMicroseconds(4500); cmd(0x33); delayMicroseconds(4500); cmd(0x33); delayMicroseconds(150); // * Ensures display is in 8-bit mode
cmd(0x32); // Puts display in 4-bit mode
cmd(0x28); // * Function set: 2-line, 5x8
cmd(0x0c); // Display on
if(reinit) return;
cmd(0x01); // Clear display
delay(3); // Allow to execute Clear on display [https://www.sparkfun.com/datasheets/LCD/HD44780.pdf, p.49, p58]
cmd(0x06); // * Entrymode: left, shift-dec
}
void nib(uint8_t b){ // Send four bit nibble to display
PORTD = LCD_PREP_NIBBLE(b); // Send data and enable high
//asm("nop"); // Enable high pulse width must be at least 230ns high, data-setup time 80ns
delayMicroseconds(4);
LCD_EN_LO();
//delayMicroseconds(52); // Execution time
delayMicroseconds(60); // Execution time
}
void cmd(uint8_t b){ nib(b >> 4); nib(b & 0xf); }// Write command: send nibbles while RS low
size_t write(uint8_t b){ // Write data: send nibbles while RS high
//LCD_EN_HI(); // Complete Enable cycle must be at least 500ns (so start early)
uint8_t nibh = LCD_PREP_NIBBLE(b >> 4); // Prepare high nibble data and enable high
PORTD = nibh; // Send high nibble data and enable high
uint8_t nibl = LCD_PREP_NIBBLE(b & 0xf); // Prepare low nibble data and enable high
//asm("nop"); // Enable high pulse width must be at least 230ns high, data-setup time 80ns; ATMEGA clock-cycle is 50ns (so at least 5 cycles)
LCD_RS_HI();
LCD_EN_LO();
PORTD = nibl; // Send low nibble data and enable high
LCD_RS_LO();
//asm("nop"); asm("nop"); // Complete Enable cycle must be at least 500ns
//PORTD = nibl; // Send low nibble data and enable high
//asm("nop"); // Enable high pulse width must be at least 230ns high, data-setup time 80ns; ATMEGA clock-cycle is 50ns (so at least 5 cycles)
LCD_RS_HI();
LCD_EN_LO();
LCD_RS_LO();
delayMicroseconds(60); // Execution time (37+4)*1.25 us
PORTD |= 0x02; // To support serial-interface keep LCD_D5 high, so that DVM is not pulled-down via D
return 1;
}
void setCursor(uint8_t x, uint8_t y){ cmd(0x80 | (x + y * 0x40)); }
void cursor(){ cmd(0x0e); }
void noCursor(){ cmd(0x0c); }
void noDisplay(){ cmd(0x08); }
void createChar(uint8_t l, uint8_t glyph[]){ cmd(0x40 | ((l & 0x7) << 3)); for(int i = 0; i != 8; i++) write(glyph[i]); }
};
/*
class LCD : public Print { // inspired by: http://www.technoblogy.com/show?2BET
public: // LCD1602 display in 4-bit mode, RS is pull-up and kept low when idle to prevent potential display RFI via RS line
#define _dn 0 // PD0 to PD3 connect to D4 to D7 on the display
#define _en 4 // PC4 - MUST have pull-up resistor
#define _rs 4 // PC4 - MUST have pull-up resistor
#define LCD_RS_HI() DDRC &= ~(1 << _rs); // RS high (pull-up)
#define LCD_RS_LO() DDRC |= 1 << _rs; // RS low (pull-down)
#define LCD_EN_LO() PORTD &= ~(1 << _en); // EN low
#define LCD_PREP_NIBBLE(b) (PORTD & ~(0xf << _dn)) | (b) << _dn | 1 << _en // Send data and enable high
void begin(uint8_t x, uint8_t y){ // Send command
DDRD |= 0xf << _dn | 1 << _en; // Make data, EN and RS pins outputs
PORTC &= ~(1 << _rs); // Set RS low in case to support pull-down when DDRC is output
delayMicroseconds(50000); // * At least 40ms after power rises above 2.7V before sending commands
LCD_RS_LO();
cmd(0x33); // Ensures display is in 8-bit mode
cmd(0x32); // Puts display in 4-bit mode
cmd(0x0e); // Display and cursor on
cmd(0x01); // Clear display
delay(3); // Allow to execute on display [https://www.sparkfun.com/datasheets/LCD/HD44780.pdf, p.49, p58]
}
void nib(uint8_t b){ // Send four bit nibble to display
PORTD = LCD_PREP_NIBBLE(b); // Send data and enable high
delayMicroseconds(4);
LCD_EN_LO();
delayMicroseconds(60); // Execution time (was: 37)
}
void cmd(uint8_t b){ nib(b >> 4); nib(b & 0xf); }// Write command: send nibbles while RS low
size_t write(uint8_t b){ // Write data: send nibbles while RS high
uint8_t nibh = LCD_PREP_NIBBLE(b >> 4); // Prepare high nibble data and enable high
uint8_t nibl = LCD_PREP_NIBBLE(b & 0xf); // Prepare low nibble data and enable high
PORTD = nibh; // Send high nibble data and enable high
LCD_RS_HI();
LCD_EN_LO();
PORTD = nibl; // Send low nibble data and enable high
LCD_RS_LO();
LCD_RS_HI();
LCD_EN_LO();
LCD_RS_LO();
delayMicroseconds(41); // Execution time
PORTD |= 0x02; // To support serial-interface keep LCD_D5 high, so that DVM is not pulled-down via D
return 1;
}
void setCursor(uint8_t x, uint8_t y){ cmd(0x80 | (x + y * 0x40)); }
void cursor(){ cmd(0x0e); }
void noCursor(){ cmd(0x0c); }
void noDisplay(){ cmd(0x08); }
void createChar(uint8_t l, uint8_t glyph[]){ cmd(0x40 | ((l & 0x7) << 3)); for(int i = 0; i != 8; i++) write(glyph[i]); }
};
*/
#include <LiquidCrystal.h>
class LCD_ : public LiquidCrystal {
public: // QCXLiquidCrystal extends LiquidCrystal library for pull-up driven LCD_RS, as done on QCX. LCD_RS needs to be set to LOW in advance of calling any operation.
//LCD_(uint8_t rs = LCD_RS, uint8_t en = LCD_EN, uint8_t d4 = LCD_D4, uint8_t d5, = LCD_D5 uint8_t d6 = LCD_D6, uint8_t d7 = LCD_D7) : LiquidCrystal(rs, en, d4, d5, d6, d7){ };
LCD_() : LiquidCrystal(LCD_RS, LCD_EN, LCD_D4, LCD_D5, LCD_D6, LCD_D7){ };
virtual size_t write(uint8_t value){ // overwrites LiquidCrystal::write() and re-implements LCD data writes
pinMode(LCD_RS, INPUT); // pull-up LCD_RS
write4bits(value >> 4);
write4bits(value);
pinMode(LCD_RS, OUTPUT); // pull-down LCD_RS
return 1;
};
void write4bits(uint8_t value){
digitalWrite(LCD_D4, (value >> 0) & 0x01);
digitalWrite(LCD_D5, (value >> 1) & 0x01);
digitalWrite(LCD_D6, (value >> 2) & 0x01);
digitalWrite(LCD_D7, (value >> 3) & 0x01);
digitalWrite(LCD_EN, LOW); // pulseEnable
delayMicroseconds(1);
digitalWrite(LCD_EN, HIGH);
delayMicroseconds(1); // enable pulse must be >450ns
digitalWrite(LCD_EN, LOW);
delayMicroseconds(100); // commands need > 37us to settle
};
};
// I2C class used by SSD1306 driver; you may connect a SSD1306 (128x32) display on LCD header pins: 1 (GND); 2 (VCC); 13 (SDA); 14 (SCL)
class I2C_ { // direct port I/O (disregards/does-not-need pull-ups)
public:
#define _DELAY() for(uint8_t i = 0; i != 4; i++) asm("nop"); // 4=731kb/s
#define _I2C_SDA (1<<2) // PD2
#define _I2C_SCL (1<<3) // PD3
#define _I2C_INIT() _I2C_SDA_HI(); _I2C_SCL_HI(); DDRD |= (_I2C_SDA | _I2C_SCL);
#define _I2C_SDA_HI() PORTD |= _I2C_SDA; _DELAY();
#define _I2C_SDA_LO() PORTD &= ~_I2C_SDA; _DELAY();
#define _I2C_SCL_HI() PORTD |= _I2C_SCL; _DELAY();
#define _I2C_SCL_LO() PORTD &= ~_I2C_SCL; _DELAY();
#define _I2C_START() _I2C_SDA_LO(); _I2C_SCL_LO(); _I2C_SDA_HI();
#define _I2C_STOP() _I2C_SCL_HI(); _I2C_SDA_HI();
#define _I2C_SUSPEND() //_I2C_SDA_LO(); // SDA_LO to allow re-use as output port
#define _SendBit(data, bit) \
if(data & 1 << bit){ \
_I2C_SDA_HI(); \
} else { \
_I2C_SDA_LO(); \
} \
_I2C_SCL_HI(); \
_I2C_SCL_LO();
inline void start(){ _I2C_INIT(); _I2C_START(); };
inline void stop() { _I2C_STOP(); _I2C_SUSPEND(); };
inline void SendByte(uint8_t data){
_SendBit(data, 7);
_SendBit(data, 6);
_SendBit(data, 5);
_SendBit(data, 4);
_SendBit(data, 3);
_SendBit(data, 2);
_SendBit(data, 1);
_SendBit(data, 0);
_I2C_SDA_HI(); // recv ACK
_DELAY(); //
_I2C_SCL_HI();
_I2C_SCL_LO();
}
void SendRegister(uint8_t addr, uint8_t* data, uint8_t n){
start();
SendByte(addr << 1);
while(n--) SendByte(*data++);
stop();
}
//void SendRegister(uint8_t addr, uint8_t val){ SendRegister(addr, &val, 1); }
void begin(){};
void beginTransmission(uint8_t addr){ start(); SendByte(addr << 1); };
bool write(uint8_t byte){ SendByte(byte); return 1; };
uint8_t endTransmission(){ stop(); return 0; };
};
I2C_ Wire;
//#include <Wire.h>
/* // 6x8 technoblogy font
const uint8_t font[]PROGMEM = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x5F, 0x00, 0x00, 0x00,
0x00, 0x07, 0x00, 0x07, 0x00, 0x00,
0x14, 0x7F, 0x14, 0x7F, 0x14, 0x00,
0x24, 0x2A, 0x7F, 0x2A, 0x12, 0x00,
0x23, 0x13, 0x08, 0x64, 0x62, 0x00,
0x36, 0x49, 0x56, 0x20, 0x50, 0x00,
0x00, 0x08, 0x07, 0x03, 0x00, 0x00,
0x00, 0x1C, 0x22, 0x41, 0x00, 0x00,
0x00, 0x41, 0x22, 0x1C, 0x00, 0x00,
0x2A, 0x1C, 0x7F, 0x1C, 0x2A, 0x00,
0x08, 0x08, 0x3E, 0x08, 0x08, 0x00,
0x00, 0x80, 0x70, 0x30, 0x00, 0x00,
0x08, 0x08, 0x08, 0x08, 0x08, 0x00,
0x00, 0x00, 0x60, 0x60, 0x00, 0x00,
0x20, 0x10, 0x08, 0x04, 0x02, 0x00,
0x3E, 0x51, 0x49, 0x45, 0x3E, 0x00,
0x00, 0x42, 0x7F, 0x40, 0x00, 0x00,
0x72, 0x49, 0x49, 0x49, 0x46, 0x00,
0x21, 0x41, 0x49, 0x4D, 0x33, 0x00,
0x18, 0x14, 0x12, 0x7F, 0x10, 0x00,
0x27, 0x45, 0x45, 0x45, 0x39, 0x00,
0x3C, 0x4A, 0x49, 0x49, 0x31, 0x00,
0x41, 0x21, 0x11, 0x09, 0x07, 0x00,
0x36, 0x49, 0x49, 0x49, 0x36, 0x00,
0x46, 0x49, 0x49, 0x29, 0x1E, 0x00,
0x00, 0x00, 0x14, 0x00, 0x00, 0x00,
0x00, 0x40, 0x34, 0x00, 0x00, 0x00,
0x00, 0x08, 0x14, 0x22, 0x41, 0x00,
0x14, 0x14, 0x14, 0x14, 0x14, 0x00,
0x00, 0x41, 0x22, 0x14, 0x08, 0x00,
0x02, 0x01, 0x59, 0x09, 0x06, 0x00,
0x3E, 0x41, 0x5D, 0x59, 0x4E, 0x00,
0x7C, 0x12, 0x11, 0x12, 0x7C, 0x00,
0x7F, 0x49, 0x49, 0x49, 0x36, 0x00,
0x3E, 0x41, 0x41, 0x41, 0x22, 0x00,
0x7F, 0x41, 0x41, 0x41, 0x3E, 0x00,
0x7F, 0x49, 0x49, 0x49, 0x41, 0x00,
0x7F, 0x09, 0x09, 0x09, 0x01, 0x00,
0x3E, 0x41, 0x41, 0x51, 0x73, 0x00,
0x7F, 0x08, 0x08, 0x08, 0x7F, 0x00,
0x00, 0x41, 0x7F, 0x41, 0x00, 0x00,
0x20, 0x40, 0x41, 0x3F, 0x01, 0x00,
0x7F, 0x08, 0x14, 0x22, 0x41, 0x00,
0x7F, 0x40, 0x40, 0x40, 0x40, 0x00,
0x7F, 0x02, 0x1C, 0x02, 0x7F, 0x00,
0x7F, 0x04, 0x08, 0x10, 0x7F, 0x00,
0x3E, 0x41, 0x41, 0x41, 0x3E, 0x00,
0x7F, 0x09, 0x09, 0x09, 0x06, 0x00,
0x3E, 0x41, 0x51, 0x21, 0x5E, 0x00,
0x7F, 0x09, 0x19, 0x29, 0x46, 0x00,
0x26, 0x49, 0x49, 0x49, 0x32, 0x00,
0x03, 0x01, 0x7F, 0x01, 0x03, 0x00,
0x3F, 0x40, 0x40, 0x40, 0x3F, 0x00,
0x1F, 0x20, 0x40, 0x20, 0x1F, 0x00,
0x3F, 0x40, 0x38, 0x40, 0x3F, 0x00,
0x63, 0x14, 0x08, 0x14, 0x63, 0x00,
0x03, 0x04, 0x78, 0x04, 0x03, 0x00,
0x61, 0x59, 0x49, 0x4D, 0x43, 0x00,
0x00, 0x7F, 0x41, 0x41, 0x41, 0x00,
0x02, 0x04, 0x08, 0x10, 0x20, 0x00,
0x00, 0x41, 0x41, 0x41, 0x7F, 0x00,
0x04, 0x02, 0x01, 0x02, 0x04, 0x00,
0x40, 0x40, 0x40, 0x40, 0x40, 0x00,
0x00, 0x03, 0x07, 0x08, 0x00, 0x00,
0x20, 0x54, 0x54, 0x78, 0x40, 0x00,
0x7F, 0x28, 0x44, 0x44, 0x38, 0x00,
0x38, 0x44, 0x44, 0x44, 0x28, 0x00,
0x38, 0x44, 0x44, 0x28, 0x7F, 0x00,
0x38, 0x54, 0x54, 0x54, 0x18, 0x00,
0x00, 0x08, 0x7E, 0x09, 0x02, 0x00,
0x18, 0xA4, 0xA4, 0x9C, 0x78, 0x00,
0x7F, 0x08, 0x04, 0x04, 0x78, 0x00,
0x00, 0x44, 0x7D, 0x40, 0x00, 0x00,
0x20, 0x40, 0x40, 0x3D, 0x00, 0x00,
0x7F, 0x10, 0x28, 0x44, 0x00, 0x00,
0x00, 0x41, 0x7F, 0x40, 0x00, 0x00,
0x7C, 0x04, 0x78, 0x04, 0x78, 0x00,
0x7C, 0x08, 0x04, 0x04, 0x78, 0x00,
0x38, 0x44, 0x44, 0x44, 0x38, 0x00,
0xFC, 0x18, 0x24, 0x24, 0x18, 0x00,
0x18, 0x24, 0x24, 0x18, 0xFC, 0x00,
0x7C, 0x08, 0x04, 0x04, 0x08, 0x00,
0x48, 0x54, 0x54, 0x54, 0x24, 0x00,
0x04, 0x04, 0x3F, 0x44, 0x24, 0x00,
0x3C, 0x40, 0x40, 0x20, 0x7C, 0x00,
0x1C, 0x20, 0x40, 0x20, 0x1C, 0x00,
0x3C, 0x40, 0x30, 0x40, 0x3C, 0x00,
0x44, 0x28, 0x10, 0x28, 0x44, 0x00,
0x4C, 0x90, 0x90, 0x90, 0x7C, 0x00,
0x44, 0x64, 0x54, 0x4C, 0x44, 0x00,
0x00, 0x08, 0x36, 0x41, 0x00, 0x00,
0x00, 0x00, 0x77, 0x00, 0x00, 0x00,
0x00, 0x41, 0x36, 0x08, 0x00, 0x00,
0x02, 0x01, 0x02, 0x04, 0x02, 0x00,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00 };
#define FONT_W 12//6
#define FONT_H 2
#define FONT_STRETCHV 1
#define FONT_STRETCHH 1//0
*/
// C64 real
const uint8_t font[]PROGMEM = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x4f, 0x4f, 0x00, 0x00, 0x00,
0x00, 0x07, 0x07, 0x00, 0x00, 0x07, 0x07, 0x00,
0x14, 0x7f, 0x7f, 0x14, 0x14, 0x7f, 0x7f, 0x14,
0x00, 0x24, 0x2e, 0x6b, 0x6b, 0x3a, 0x12, 0x00,
0x00, 0x63, 0x33, 0x18, 0x0c, 0x66, 0x63, 0x00,
0x00, 0x32, 0x7f, 0x4d, 0x4d, 0x77, 0x72, 0x50,
0x00, 0x00, 0x00, 0x04, 0x06, 0x03, 0x01, 0x00,
0x00, 0x00, 0x1c, 0x3e, 0x63, 0x41, 0x00, 0x00,
0x00, 0x00, 0x41, 0x63, 0x3e, 0x1c, 0x00, 0x00,
0x08, 0x2a, 0x3e, 0x1c, 0x1c, 0x3e, 0x2a, 0x08,
0x00, 0x08, 0x08, 0x3e, 0x3e, 0x08, 0x08, 0x00,
0x00, 0x00, 0x80, 0xe0, 0x60, 0x00, 0x00, 0x00,
0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x00,
0x00, 0x00, 0x00, 0x60, 0x60, 0x00, 0x00, 0x00,
0x00, 0x40, 0x60, 0x30, 0x18, 0x0c, 0x06, 0x02,
0x00, 0x3e, 0x7f, 0x49, 0x45, 0x7f, 0x3e, 0x00,
0x00, 0x40, 0x44, 0x7f, 0x7f, 0x40, 0x40, 0x00,
0x00, 0x62, 0x73, 0x51, 0x49, 0x4f, 0x46, 0x00,
0x00, 0x22, 0x63, 0x49, 0x49, 0x7f, 0x36, 0x00,
0x00, 0x18, 0x18, 0x14, 0x16, 0x7f, 0x7f, 0x10,
0x00, 0x27, 0x67, 0x45, 0x45, 0x7d, 0x39, 0x00,
0x00, 0x3e, 0x7f, 0x49, 0x49, 0x7b, 0x32, 0x00,
0x00, 0x03, 0x03, 0x79, 0x7d, 0x07, 0x03, 0x00,
0x00, 0x36, 0x7f, 0x49, 0x49, 0x7f, 0x36, 0x00,
0x00, 0x26, 0x6f, 0x49, 0x49, 0x7f, 0x3e, 0x00,
0x00, 0x00, 0x00, 0x24, 0x24, 0x00, 0x00, 0x00,
0x00, 0x00, 0x80, 0xe4, 0x64, 0x00, 0x00, 0x00,
0x00, 0x08, 0x1c, 0x36, 0x63, 0x41, 0x41, 0x00,
0x00, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x00,
0x00, 0x41, 0x41, 0x63, 0x36, 0x1c, 0x08, 0x00,
0x00, 0x02, 0x03, 0x51, 0x59, 0x0f, 0x06, 0x00,
0x00, 0x3e, 0x7f, 0x41, 0x4d, 0x4f, 0x2e, 0x00,
0x00, 0x7c, 0x7e, 0x0b, 0x0b, 0x7e, 0x7c, 0x00,
0x00, 0x7f, 0x7f, 0x49, 0x49, 0x7f, 0x36, 0x00,
0x00, 0x3e, 0x7f, 0x41, 0x41, 0x63, 0x22, 0x00,
0x00, 0x7f, 0x7f, 0x41, 0x63, 0x3e, 0x1c, 0x00,
0x00, 0x7f, 0x7f, 0x49, 0x49, 0x41, 0x41, 0x00,
0x00, 0x7f, 0x7f, 0x09, 0x09, 0x01, 0x01, 0x00,
0x00, 0x3e, 0x7f, 0x41, 0x49, 0x7b, 0x3a, 0x00,
0x00, 0x7f, 0x7f, 0x08, 0x08, 0x7f, 0x7f, 0x00,
0x00, 0x00, 0x41, 0x7f, 0x7f, 0x41, 0x00, 0x00,
0x00, 0x20, 0x60, 0x41, 0x7f, 0x3f, 0x01, 0x00,
0x00, 0x7f, 0x7f, 0x1c, 0x36, 0x63, 0x41, 0x00,
0x00, 0x7f, 0x7f, 0x40, 0x40, 0x40, 0x40, 0x00,
0x00, 0x7f, 0x7f, 0x06, 0x0c, 0x06, 0x7f, 0x7f,
0x00, 0x7f, 0x7f, 0x0e, 0x1c, 0x7f, 0x7f, 0x00,
0x00, 0x3e, 0x7f, 0x41, 0x41, 0x7f, 0x3e, 0x00,
0x00, 0x7f, 0x7f, 0x09, 0x09, 0x0f, 0x06, 0x00,
0x00, 0x1e, 0x3f, 0x21, 0x61, 0x7f, 0x5e, 0x00,
0x00, 0x7f, 0x7f, 0x19, 0x39, 0x6f, 0x46, 0x00,
0x00, 0x26, 0x6f, 0x49, 0x49, 0x7b, 0x32, 0x00,
0x00, 0x01, 0x01, 0x7f, 0x7f, 0x01, 0x01, 0x00,
0x00, 0x3f, 0x7f, 0x40, 0x40, 0x7f, 0x3f, 0x00,
0x00, 0x1f, 0x3f, 0x60, 0x60, 0x3f, 0x1f, 0x00,
0x00, 0x7f, 0x7f, 0x30, 0x18, 0x30, 0x7f, 0x7f,
0x00, 0x63, 0x77, 0x1c, 0x1c, 0x77, 0x63, 0x00,
0x00, 0x07, 0x0f, 0x78, 0x78, 0x0f, 0x07, 0x00,
0x00, 0x61, 0x71, 0x59, 0x4d, 0x47, 0x43, 0x00,
0x00, 0x00, 0x7f, 0x7f, 0x41, 0x41, 0x00, 0x00,
0x00, 0x02, 0x06, 0x0c, 0x18, 0x30, 0x60, 0x40,
0x00, 0x00, 0x41, 0x41, 0x7f, 0x7f, 0x00, 0x00,
0x00, 0x08, 0x0c, 0xfe, 0xfe, 0x0c, 0x08, 0x00,
0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
0x00, 0x01, 0x03, 0x06, 0x04, 0x00, 0x00, 0x00,
0x00, 0x20, 0x74, 0x54, 0x54, 0x7c, 0x78, 0x00,
0x00, 0x7e, 0x7e, 0x48, 0x48, 0x78, 0x30, 0x00,
0x00, 0x38, 0x7c, 0x44, 0x44, 0x44, 0x00, 0x00,
0x00, 0x30, 0x78, 0x48, 0x48, 0x7e, 0x7e, 0x00,
0x00, 0x38, 0x7c, 0x54, 0x54, 0x5c, 0x18, 0x00,
0x00, 0x00, 0x08, 0x7c, 0x7e, 0x0a, 0x0a, 0x00,
0x00, 0x98, 0xbc, 0xa4, 0xa4, 0xfc, 0x7c, 0x00,
0x00, 0x7e, 0x7e, 0x08, 0x08, 0x78, 0x70, 0x00,
0x00, 0x00, 0x48, 0x7a, 0x7a, 0x40, 0x00, 0x00,
0x00, 0x00, 0x80, 0x80, 0x80, 0xfa, 0x7a, 0x00,
0x00, 0x7e, 0x7e, 0x10, 0x38, 0x68, 0x40, 0x00,
0x00, 0x00, 0x42, 0x7e, 0x7e, 0x40, 0x00, 0x00,
0x00, 0x7c, 0x7c, 0x18, 0x38, 0x1c, 0x7c, 0x78,
0x00, 0x7c, 0x7c, 0x04, 0x04, 0x7c, 0x78, 0x00,
0x00, 0x38, 0x7c, 0x44, 0x44, 0x7c, 0x38, 0x00,
0x00, 0xfc, 0xfc, 0x24, 0x24, 0x3c, 0x18, 0x00,
0x00, 0x18, 0x3c, 0x24, 0x24, 0xfc, 0xfc, 0x00,
0x00, 0x7c, 0x7c, 0x04, 0x04, 0x0c, 0x08, 0x00,
0x00, 0x48, 0x5c, 0x54, 0x54, 0x74, 0x24, 0x00,
0x00, 0x04, 0x04, 0x3e, 0x7e, 0x44, 0x44, 0x00,
0x00, 0x3c, 0x7c, 0x40, 0x40, 0x7c, 0x7c, 0x00,
0x00, 0x1c, 0x3c, 0x60, 0x60, 0x3c, 0x1c, 0x00,
0x00, 0x1c, 0x7c, 0x70, 0x38, 0x70, 0x7c, 0x1c,
0x00, 0x44, 0x6c, 0x38, 0x38, 0x6c, 0x44, 0x00,
0x00, 0x9c, 0xbc, 0xa0, 0xe0, 0x7c, 0x3c, 0x00,
0x00, 0x44, 0x64, 0x74, 0x5c, 0x4c, 0x44, 0x00,
0x00, 0x08, 0x3e, 0x77, 0x41, 0x41, 0x00, 0x00,
0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00,
0x00, 0x00, 0x41, 0x41, 0x77, 0x3e, 0x08, 0x00,
0x00, 0x04, 0x02, 0x02, 0x04, 0x04, 0x02, 0x00
};
#define FONT_W 8
#define FONT_H 2
#define FONT_STRETCHV 1
#define FONT_STRETCHH 0
/* //16x8 C-64 kind of
const uint8_t font[]PROGMEM = {
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // 0x20
0x00,0x06,0x5F,0x5F,0x06,0x00,0x00,0x00, // 0x21
0x00,0x07,0x07,0x00,0x07,0x07,0x00,0x00, // 0x22
0x14,0x7F,0x7F,0x14,0x7F,0x7F,0x14,0x00, // 0x23
0x24,0x2E,0x6B,0x6B,0x3A,0x12,0x00,0x00, // 0x24
0x46,0x66,0x30,0x18,0x0C,0x66,0x62,0x00, // 0x25
0x30,0x7A,0x4F,0x5D,0x37,0x7A,0x48,0x00, // 0x26
0x04,0x07,0x03,0x00,0x00,0x00,0x00,0x00, // 0x27
0x00,0x1C,0x3E,0x63,0x41,0x00,0x00,0x00, // 0x28
0x00,0x41,0x63,0x3E,0x1C,0x00,0x00,0x00, // 0x29
0x08,0x2A,0x3E,0x1C,0x1C,0x3E,0x2A,0x08, // 0x2A
0x08,0x08,0x3E,0x3E,0x08,0x08,0x00,0x00, // 0x2B
0x00,0xA0,0xE0,0x60,0x00,0x00,0x00,0x00, // 0x2C
0x08,0x08,0x08,0x08,0x08,0x08,0x00,0x00, // 0x2D
0x00,0x00,0x60,0x60,0x00,0x00,0x00,0x00, // 0x2E
0x60,0x30,0x18,0x0C,0x06,0x03,0x01,0x00, // 0x2F
0x3E,0x7F,0x59,0x4D,0x7F,0x3E,0x00,0x00, // 0x30
0x42,0x42,0x7F,0x7F,0x40,0x40,0x00,0x00, // 0x31
0x62,0x73,0x59,0x49,0x6F,0x66,0x00,0x00, // 0x32
0x22,0x63,0x49,0x49,0x7F,0x36,0x00,0x00, // 0x33
0x18,0x1C,0x16,0x13,0x7F,0x7F,0x10,0x00, // 0x34
0x27,0x67,0x45,0x45,0x7D,0x39,0x00,0x00, // 0x35
0x3C,0x7E,0x4B,0x49,0x79,0x30,0x00,0x00, // 0x36
0x03,0x63,0x71,0x19,0x0F,0x07,0x00,0x00, // 0x37
0x36,0x7F,0x49,0x49,0x7F,0x36,0x00,0x00, // 0x38
0x06,0x4F,0x49,0x69,0x3F,0x1E,0x00,0x00, // 0x39
0x00,0x00,0x6C,0x6C,0x00,0x00,0x00,0x00, // 0x3A
0x00,0xA0,0xEC,0x6C,0x00,0x00,0x00,0x00, // 0x3B
0x08,0x1C,0x36,0x63,0x41,0x00,0x00,0x00, // 0x3C
0x14,0x14,0x14,0x14,0x14,0x14,0x00,0x00, // 0x3D
0x00,0x41,0x63,0x36,0x1C,0x08,0x00,0x00, // 0x3E
0x02,0x03,0x51,0x59,0x0F,0x06,0x00,0x00, // 0x3F
0x3E,0x7F,0x41,0x5D,0x5D,0x1F,0x1E,0x00, // 0x40
0x7C,0x7E,0x13,0x13,0x7E,0x7C,0x00,0x00, // 0x41
0x41,0x7F,0x7F,0x49,0x49,0x7F,0x36,0x00, // 0x42
0x1C,0x3E,0x63,0x41,0x41,0x63,0x22,0x00, // 0x43
0x41,0x7F,0x7F,0x41,0x63,0x7F,0x1C,0x00, // 0x44
0x41,0x7F,0x7F,0x49,0x5D,0x41,0x63,0x00, // 0x45
0x41,0x7F,0x7F,0x49,0x1D,0x01,0x03,0x00, // 0x46
0x1C,0x3E,0x63,0x41,0x51,0x73,0x72,0x00, // 0x47
0x7F,0x7F,0x08,0x08,0x7F,0x7F,0x00,0x00, // 0x48
0x00,0x41,0x7F,0x7F,0x41,0x00,0x00,0x00, // 0x49
0x30,0x70,0x40,0x41,0x7F,0x3F,0x01,0x00, // 0x4A
0x41,0x7F,0x7F,0x08,0x1C,0x77,0x63,0x00, // 0x4B
0x41,0x7F,0x7F,0x41,0x40,0x60,0x70,0x00, // 0x4C
0x7F,0x7F,0x06,0x0C,0x06,0x7F,0x7F,0x00, // 0x4D
0x7F,0x7F,0x06,0x0C,0x18,0x7F,0x7F,0x00, // 0x4E
0x1C,0x3E,0x63,0x41,0x63,0x3E,0x1C,0x00, // 0x4F
0x41,0x7F,0x7F,0x49,0x09,0x0F,0x06,0x00, // 0x50
0x1E,0x3F,0x21,0x71,0x7F,0x5E,0x00,0x00, // 0x51
0x41,0x7F,0x7F,0x19,0x39,0x6F,0x46,0x00, // 0x52
0x26,0x67,0x4D,0x59,0x7B,0x32,0x00,0x00, // 0x53
0x03,0x41,0x7F,0x7F,0x41,0x03,0x00,0x00, // 0x54
0x7F,0x7F,0x40,0x40,0x7F,0x7F,0x00,0x00, // 0x55
0x1F,0x3F,0x60,0x60,0x3F,0x1F,0x00,0x00, // 0x56
0x7F,0x7F,0x30,0x18,0x30,0x7F,0x7F,0x00, // 0x57
0x63,0x77,0x1C,0x08,0x1C,0x77,0x63,0x00, // 0x58
0x07,0x4F,0x78,0x78,0x4F,0x07,0x00,0x00, // 0x59
0x67,0x73,0x59,0x4D,0x47,0x63,0x71,0x00, // 0x5A
0x00,0x7F,0x7F,0x41,0x41,0x00,0x00,0x00, // 0x5B
0x01,0x03,0x06,0x0C,0x18,0x30,0x60,0x00, // 0x5C
0x00,0x41,0x41,0x7F,0x7F,0x00,0x00,0x00, // 0x5D
0x08,0x0C,0x06,0x03,0x06,0x0C,0x08,0x00, // 0x5E
0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80, // 0x5F
0x00,0x00,0x03,0x07,0x04,0x00,0x00,0x00, // 0x60
0x20,0x74,0x54,0x54,0x3C,0x78,0x40,0x00, // 0x61
0x41,0x3F,0x7F,0x44,0x44,0x7C,0x38,0x00, // 0x62
0x38,0x7C,0x44,0x44,0x6C,0x28,0x00,0x00, // 0x63
0x30,0x78,0x48,0x49,0x3F,0x7F,0x40,0x00, // 0x64
0x38,0x7C,0x54,0x54,0x5C,0x18,0x00,0x00, // 0x65
0x48,0x7E,0x7F,0x49,0x03,0x02,0x00,0x00, // 0x66
0x98,0xBC,0xA4,0xA4,0xF8,0x7C,0x04,0x00, // 0x67
0x41,0x7F,0x7F,0x08,0x04,0x7C,0x78,0x00, // 0x68
0x00,0x44,0x7D,0x7D,0x40,0x00,0x00,0x00, // 0x69
0x40,0xC4,0x84,0xFD,0x7D,0x00,0x00,0x00, // 0x6A
0x41,0x7F,0x7F,0x10,0x38,0x6C,0x44,0x00, // 0x6B
0x00,0x41,0x7F,0x7F,0x40,0x00,0x00,0x00, // 0x6C
0x7C,0x7C,0x0C,0x18,0x0C,0x7C,0x78,0x00, // 0x6D
0x7C,0x7C,0x04,0x04,0x7C,0x78,0x00,0x00, // 0x6E
0x38,0x7C,0x44,0x44,0x7C,0x38,0x00,0x00, // 0x6F
0x84,0xFC,0xF8,0xA4,0x24,0x3C,0x18,0x00, // 0x70
0x18,0x3C,0x24,0xA4,0xF8,0xFC,0x84,0x00, // 0x71
0x44,0x7C,0x78,0x44,0x1C,0x18,0x00,0x00, // 0x72
0x48,0x5C,0x54,0x54,0x74,0x24,0x00,0x00, // 0x73
0x00,0x04,0x3E,0x7F,0x44,0x24,0x00,0x00, // 0x74
0x3C,0x7C,0x40,0x40,0x3C,0x7C,0x40,0x00, // 0x75
0x1C,0x3C,0x60,0x60,0x3C,0x1C,0x00,0x00, // 0x76
0x3C,0x7C,0x60,0x30,0x60,0x7C,0x3C,0x00, // 0x77
0x44,0x6C,0x38,0x10,0x38,0x6C,0x44,0x00, // 0x78
0x9C,0xBC,0xA0,0xA0,0xFC,0x7C,0x00,0x00, // 0x79
0x4C,0x64,0x74,0x5C,0x4C,0x64,0x00,0x00, // 0x7A
0x08,0x08,0x3E,0x77,0x41,0x41,0x00,0x00, // 0x7B
0x00,0x00,0x00,0x77,0x77,0x00,0x00,0x00, // 0x7C
0x41,0x41,0x77,0x3E,0x08,0x08,0x00,0x00, // 0x7D
0x02,0x03,0x01,0x03,0x02,0x03,0x01,0x00, // 0x7E
0x78,0x7C,0x46,0x43,0x46,0x7C,0x78,0x00}; // 0x7F
#define FONT_W 8
#define FONT_H 2
#define FONT_STRETCHV 1
#define FONT_STRETCHH 0
*/
#define BRIGHT 1
static const uint8_t ssd1306_init_sequence [] PROGMEM = { // Initialization Sequence
// 0xAE, // Display OFF (sleep mode)
0x20, 0b10, // Set Memory Addressing Mode
// 00=Horizontal Addressing Mode; 01=Vertical Addressing Mode;
// 10=Page Addressing Mode (RESET); 11=Invalid
0xB0, // Set Page Start Address for Page Addressing Mode, 0-7
0xC8, // Set COM Output Scan Direction. Flip Veritically.
0x00, // Set low nibble of column address
0x10, // Set high nibble of column address
0x40, // Set display start line address
#ifdef BRIGHT
0x81, /*32*/ 0x7F, // Set contrast control register
#else
0x81, 32, // Set contrast control register
#endif
0xA1, // Set Segment Re-map. A0=column 0 mapped to SEG0; A1=column 127 mapped to SEG0. Flip Horizontally
0xA6, // Set display mode. A6=Normal; A7=Inverse
0xA8, 0x1F, // Set multiplex ratio(1 to 64)
0xA4, // Output RAM to Display
// 0xA4=Output follows RAM content; 0xA5,Output ignores RAM content
0xD3, 0x00, // Set display offset. 00 = no offset
0xD5, 0x80, // --set display clock divide ratio/oscillator frequency
#ifdef BRIGHT
0xD9, 0xF1, // 0xF1=brighter //0x22, // Set pre-charge period
#else
0xD9, 0x22, // Set pre-charge period
#endif
0xDA, 0x02, // Set com pins hardware configuration
// 0xDB, 0x40, //0x20, // --set vcomh 0x20 = 0.77xVcc
0x8D, 0x14, // Set DC-DC enable
0xAF, // Display ON
};
class SSD1306Device: public Print {
public:
#define SSD1306_ADDR 0x3C // Slave address
#define SSD1306_PAGES 4
#define SSD1306_COMMAND 0x00
#define SSD1306_DATA 0x40
uint8_t oledX = 0, oledY = 0;
uint8_t renderingFrame = 0xB0;
bool wrap = false;
void begin(uint8_t cols, uint8_t rows, uint8_t charsize = 0){
Wire.begin();
Wire.beginTransmission(SSD1306_ADDR); Wire.write(SSD1306_COMMAND);
for (uint8_t i = 0; i < sizeof(ssd1306_init_sequence); i++) {
Wire.write(pgm_read_byte(&ssd1306_init_sequence[i]));
}
Wire.endTransmission();
delayMicroseconds(100);
}
void noCursor(){}
void cursor(){}
void noDisplay(){}
void createChar(uint8_t l, uint8_t glyph[]){}
void _setCursor(uint8_t x, uint8_t y) { oledX = x; oledY = y;
Wire.beginTransmission(SSD1306_ADDR); Wire.write(SSD1306_COMMAND);
Wire.write(renderingFrame | (oledY & 0x07));
Wire.write(0x10 | ((oledX & 0xf0) >> 4));
Wire.write(oledX & 0x0f);
Wire.endTransmission();
}
void setCursor(uint8_t x, uint8_t y) { _setCursor(x * FONT_W, y * FONT_H); }
void newLine() {
oledY+=FONT_H;
if (oledY > SSD1306_PAGES - FONT_H) {
oledY = SSD1306_PAGES - FONT_H;
}
setCursor(0, oledY);
}
size_t write(byte c) {
if((c == '\n') || (oledX > ((uint8_t)128 - FONT_W))) {
if(wrap) newLine();
return 1;
}
uint16_t offset = ((uint16_t)c - ' ') * FONT_W/(FONT_STRETCHH+1) * FONT_H;
uint8_t line = FONT_H;
do
{
if(FONT_STRETCHV) offset = ((uint16_t)c - ' ') * FONT_W/(FONT_STRETCHH+1) * FONT_H/(2*FONT_STRETCHV);
Wire.beginTransmission(SSD1306_ADDR); Wire.write(SSD1306_DATA);
for (uint8_t i = 0; i < (FONT_W/(FONT_STRETCHH+1)); i++) {
uint8_t b = pgm_read_byte(&(font[offset++]));
if(FONT_STRETCHV){
uint8_t b2 = 0;
if(line > 1) for(int i = 0; i!=4; i++) b2 |=/* ! */(b & (1<<i)) ? (1<<(i*2)) | (1<<(i*2)+1): 0x00;
else for(int i = 0; i!=4; i++) b2 |=/* ! */(b & (1<<(i+4))) ? (1<<(i*2)) | (1<<(i*2)+1): 0x00;
Wire.write(b2);
if(FONT_STRETCHH) Wire.write(b2);
} else { Wire.write(b); if(FONT_STRETCHH) Wire.write(b); }
}
Wire.endTransmission();
if (FONT_H == 1) {
oledX+=FONT_W;
}
else {
if (line > 1) {
_setCursor(oledX, oledY + 1);
}
else {
_setCursor(oledX + FONT_W, oledY - (FONT_H - 1));
}
}
}
while (--line);
return 1;
}
void bitmap(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, const uint8_t bitmap[]) {
uint16_t j = 0;
for (uint8_t y = y0; y < y1; y++) {
_setCursor(x0, y);
Wire.beginTransmission(SSD1306_ADDR); Wire.write(SSD1306_DATA);
for (uint8_t x = x0; x < x1; x++) {
Wire.write(pgm_read_byte(&bitmap[j++]));
}
Wire.endTransmission();
}
setCursor(0, 0);
}
};
//#define OLED 1 // SDD1306 connection on display header: 1=GND(black), 2=5V(red), 13=SDA(brown), 14=SCK(orange)
#ifdef OLED
SSD1306Device lcd;
#else
LCD lcd; // highly-optimized LCD driver, OK for QCX supplied displays
//LCD_ lcd; // slower LCD, suitable for non-QCX supplied displays
//#include <LiquidCrystal.h>
//LiquidCrystal lcd(LCD_RS, LCD_EN, LCD_D4, LCD_D5, LCD_D6, LCD_D7);
#endif
volatile int8_t encoder_val = 0;
volatile int8_t encoder_step = 0;
static uint8_t last_state;
ISR(PCINT2_vect){ // Interrupt on rotary encoder turn
//noInterrupts();
switch(last_state = (last_state << 4) | (digitalRead(ROT_B) << 1) | digitalRead(ROT_A)){ //transition (see: https://www.allaboutcircuits.com/projects/how-to-use-a-rotary-encoder-in-a-mcu-based-project/ )
//#define ENCODER_ENHANCED_RESOLUTION 1
#ifdef ENCODER_ENHANCED_RESOLUTION // Option: enhance encoder from 24 to 96 steps/revolution, see: appendix 1, https://www.sdr-kits.net/documents/PA0KLT_Manual.pdf
case 0x31: case 0x10: case 0x02: case 0x23: encoder_val++; break;
case 0x32: case 0x20: case 0x01: case 0x13: encoder_val--; break;
#else
case 0x31: case 0x10: case 0x02: case 0x23: if(encoder_step < 0) encoder_step = 0; encoder_step++; if(encoder_step > 3){ encoder_step = 0; encoder_val++; } break;
case 0x32: case 0x20: case 0x01: case 0x13: if(encoder_step > 0) encoder_step = 0; encoder_step--; if(encoder_step < -3){ encoder_step = 0; encoder_val--; } break;
#endif
}
//interrupts();
}
void encoder_setup()
{
pinMode(ROT_A, INPUT_PULLUP);
pinMode(ROT_B, INPUT_PULLUP);
PCMSK2 |= (1 << PCINT22) | (1 << PCINT23); // interrupt-enable for ROT_A, ROT_B pin changes; see https://github.com/EnviroDIY/Arduino-SDI-12/wiki/2b.-Overview-of-Interrupts
PCICR |= (1 << PCIE2);
last_state = (digitalRead(ROT_B) << 1) | digitalRead(ROT_A);
interrupts();
}
/*
class Encoder {
public:
volatile int8_t val = 0;
volatile int8_t step = 0;
uint8_t last_state;
Encoder(){
pinMode(ROT_A, INPUT_PULLUP);
pinMode(ROT_B, INPUT_PULLUP);
PCMSK2 |= (1 << PCINT22) | (1 << PCINT23); // interrupt-enable for ROT_A, ROT_B pin changes; see https://github.com/EnviroDIY/Arduino-SDI-12/wiki/2b.-Overview-of-Interrupts
PCICR |= (1 << PCIE2);
last_state = (digitalRead(ROT_B) << 1) | digitalRead(ROT_A);
sei();
}
void event(){
switch(last_state = (last_state << 4) | (digitalRead(ROT_B) << 1) | digitalRead(ROT_A)){ //transition (see: https://www.allaboutcircuits.com/projects/how-to-use-a-rotary-encoder-in-a-mcu-based-project/ )
case 0x31: case 0x10: case 0x02: case 0x23: if(step < 0) step = 0; step++; if(step > 3){ step = 0; val++; } break;
case 0x32: case 0x20: case 0x01: case 0x13: if(step > 0) step = 0; step--; if(step < -3){ step = 0; val--; } break;
}
}
};
Encoder enc;
ISR(PCINT2_vect){ // Interrupt on rotary encoder turn
enc.event();
}*/
class I2C {
public:
#define I2C_DELAY 4 // Determines I2C Speed (2=939kb/s (too fast!!); 3=822kb/s; 4=731kb/s; 5=658kb/s; 6=598kb/s). Increase this value when you get I2C tx errors (E05); decrease this value when you get a CPU overload (E01). An increment eats ~3.5% CPU load; minimum value is 3 on my QCX, resulting in 84.5% CPU load
#define I2C_DDR DDRC // Pins for the I2C bit banging
#define I2C_PIN PINC
#define I2C_PORT PORTC
#define I2C_SDA (1 << 4) // PC4
#define I2C_SCL (1 << 5) // PC5
#define DELAY(n) for(uint8_t i = 0; i != n; i++) asm("nop");
#define I2C_SDA_GET() I2C_PIN & I2C_SDA
#define I2C_SCL_GET() I2C_PIN & I2C_SCL
#define I2C_SDA_HI() I2C_DDR &= ~I2C_SDA;
#define I2C_SDA_LO() I2C_DDR |= I2C_SDA;
#define I2C_SCL_HI() I2C_DDR &= ~I2C_SCL; DELAY(I2C_DELAY);
#define I2C_SCL_LO() I2C_DDR |= I2C_SCL; DELAY(I2C_DELAY);
I2C(){
I2C_PORT &= ~( I2C_SDA | I2C_SCL );
I2C_SCL_HI();
I2C_SDA_HI();
suspend();
}
~I2C(){
I2C_PORT &= ~( I2C_SDA | I2C_SCL );
I2C_DDR &= ~( I2C_SDA | I2C_SCL );
}
inline void start(){
resume(); //prepare for I2C
I2C_SCL_LO();
I2C_SDA_HI();
}
inline void stop(){
I2C_SCL_HI();
I2C_SDA_HI();
I2C_DDR &= ~(I2C_SDA | I2C_SCL); // prepare for a start: pull-up both SDA, SCL
suspend();
}
#define SendBit(data, mask) \
if(data & mask){ \
I2C_SDA_HI(); \
} else { \
I2C_SDA_LO(); \
} \
I2C_SCL_HI(); \
I2C_SCL_LO();
/*#define SendByte(data) \
SendBit(data, 1 << 7) \
SendBit(data, 1 << 6) \
SendBit(data, 1 << 5) \
SendBit(data, 1 << 4) \
SendBit(data, 1 << 3) \
SendBit(data, 1 << 2) \
SendBit(data, 1 << 1) \
SendBit(data, 1 << 0) \
I2C_SDA_HI(); // recv ACK \
DELAY(I2C_DELAY); \
I2C_SCL_HI(); \
I2C_SCL_LO();*/
inline void SendByte(uint8_t data){
SendBit(data, 1 << 7);
SendBit(data, 1 << 6);
SendBit(data, 1 << 5);
SendBit(data, 1 << 4);
SendBit(data, 1 << 3);
SendBit(data, 1 << 2);
SendBit(data, 1 << 1);
SendBit(data, 1 << 0);
I2C_SDA_HI(); // recv ACK
DELAY(I2C_DELAY);
I2C_SCL_HI();
I2C_SCL_LO();
}
inline uint8_t RecvBit(uint8_t mask){
I2C_SCL_HI();
uint16_t i = 60000;
for(;(!I2C_SCL_GET()) && i; i--); // wait util slave release SCL to HIGH (meaning data valid), or timeout at 3ms
if(!i){ lcd.setCursor(0, 1); lcd.print(F("E07 I2C timeout")); }
uint8_t data = I2C_SDA_GET();
I2C_SCL_LO();
return (data) ? mask : 0;
}
inline uint8_t RecvByte(uint8_t last){
uint8_t data = 0;
data |= RecvBit(1 << 7);
data |= RecvBit(1 << 6);
data |= RecvBit(1 << 5);
data |= RecvBit(1 << 4);
data |= RecvBit(1 << 3);
data |= RecvBit(1 << 2);
data |= RecvBit(1 << 1);
data |= RecvBit(1 << 0);
if(last){
I2C_SDA_HI(); // NACK
} else {
I2C_SDA_LO(); // ACK
}
DELAY(I2C_DELAY);
I2C_SCL_HI();
I2C_SDA_HI(); // restore SDA for read
I2C_SCL_LO();
return data;
}
inline void resume(){
#ifdef LCD_RS_PORTIO
I2C_PORT &= ~I2C_SDA; // pin sharing SDA/LCD_RS mitigation
#endif
}
inline void suspend(){
I2C_SDA_LO(); // pin sharing SDA/LCD_RS: pull-down LCD_RS; QCXLiquidCrystal require this for any operation
}
};
#define log2(n) (log(n) / log(2))
// /*
I2C i2c;
class SI5351 {
public:
volatile int32_t _fout;
volatile uint8_t _div; // note: uint8_t asserts fout > 3.5MHz with R_DIV=1
volatile uint16_t _msa128min512;
volatile uint32_t _msb128;
volatile uint8_t pll_regs[8];
#define BB0(x) ((uint8_t)(x)) // Bash byte x of int32_t
#define BB1(x) ((uint8_t)((x)>>8))
#define BB2(x) ((uint8_t)((x)>>16))
#define FAST __attribute__((optimize("Ofast")))
#define F_XTAL 27005000 // Crystal freq in Hz, nominal frequency 27004300
//#define F_XTAL 25004000 // Alternate SI clock
//#define F_XTAL 20004000 // A shared-single 20MHz processor/pll clock
volatile uint32_t fxtal = F_XTAL;
inline void FAST freq_calc_fast(int16_t df) // note: relies on cached variables: _msb128, _msa128min512, _div, _fout, fxtal
{
#define _MSC 0x80000 //0x80000: 98% CPU load 0xFFFFF: 114% CPU load
uint32_t msb128 = _msb128 + ((int64_t)(_div * (int32_t)df) * _MSC * 128) / fxtal;
//#define _MSC 0xFFFFF // Old algorithm 114% CPU load, shortcut for a fixed fxtal=27e6
//register uint32_t xmsb = (_div * (_fout + (int32_t)df)) % fxtal; // xmsb = msb * fxtal/(128 * _MSC);
//uint32_t msb128 = xmsb * 5*(32/32) - (xmsb/32); // msb128 = xmsb * 159/32, where 159/32 = 128 * 0xFFFFF / fxtal; fxtal=27e6
//#define _MSC (F_XTAL/128) // 114% CPU load perfect alignment
//uint32_t msb128 = (_div * (_fout + (int32_t)df)) % fxtal;
uint32_t msp1 = _msa128min512 + msb128 / _MSC; // = 128 * _msa + msb128 / _MSC - 512;
uint32_t msp2 = msb128 % _MSC; // = msb128 - msb128/_MSC * _MSC;
//pll_regs[0] = BB1(msc); // 3 regs are constant
//pll_regs[1] = BB0(msc);
//pll_regs[2] = BB2(msp1);
pll_regs[3] = BB1(msp1);
pll_regs[4] = BB0(msp1);
pll_regs[5] = ((_MSC&0xF0000)>>(16-4))|BB2(msp2); // top nibble MUST be same as top nibble of _MSC !
pll_regs[6] = BB1(msp2);
pll_regs[7] = BB0(msp2);
}
#define SI5351_ADDR 0x60 // I2C address of Si5351 (typical)
inline void SendPLLBRegisterBulk(){
i2c.start();
i2c.SendByte(SI5351_ADDR << 1);
i2c.SendByte(26+1*8 + 3); // Write to PLLB
i2c.SendByte(pll_regs[3]);
i2c.SendByte(pll_regs[4]);
i2c.SendByte(pll_regs[5]);
i2c.SendByte(pll_regs[6]);
i2c.SendByte(pll_regs[7]);
i2c.stop();
}
void SendRegister(uint8_t reg, uint8_t* data, uint8_t n){
i2c.start();
i2c.SendByte(SI5351_ADDR << 1);
i2c.SendByte(reg);
while (n--) i2c.SendByte(*data++);
i2c.stop();
}
void SendRegister(uint8_t reg, uint8_t val){ SendRegister(reg, &val, 1); }
/*
bool dirty;
void set_pll(uint8_t pll, uint32_t fvco){ // Set PLL (fractional) PLLA=0, PLLB=1
uint8_t msa; uint32_t msb, msc, msp1, msp2, msp3p2;
msa = fvco / fxtal; // Integer part of vco/fxtal
msb = ((uint64_t)(fvco % fxtal)*_MSC) / fxtal; // Fractional part
msc = _MSC;
msp1 = 128*msa + 128*msb/msc - 512;
msp2 = 128*msb - 128*msb/msc * msc; // msp3 == msc
msp3p2 = (((msc & 0x0F0000) <<4) | msp2); // msp3 on top nibble
uint8_t pll_regs[8] = { BB1(msc), BB0(msc), BB2(msp1), BB1(msp1), BB0(msp1), BB2(msp3p2), BB1(msp2), BB0(msp2) };
SendRegister(26+pll*8, pll_regs, 8); // Write to PLL[pll]
}
void set_ms(uint8_t clk, uint8_t linked_pll, uint8_t msa, uint8_t rdiv, uint8_t phase){ // Set Multisynth divider (integer) CLK0=0, CLK1=1, CLK2=2
uint32_t msp1 = (128*msa - 512) | (((uint32_t)rdiv)<<20); // msp1 and msp2=0, msp3=1, not fractional
uint8_t ms_regs[8] = {0, 1, BB2(msp1), BB1(msp1), BB0(msp1), 0, 0, 0};
SendRegister(42+clk*8, ms_regs, 8); // Write to MS[clk]
SendRegister(16+clk, (linked_pll*0x20)|0x0C|3|0x40); // CLK[clk]: PLL[pll] local msynth; 3=8mA; 0x40=integer division, bit7:6=0->power-up
SendRegister(165+clk, phase * msa / 90); // CLK[clk]: phase (on change -> reset PLL)
static uint16_t pm[3]; // to detect a need for a PLL reset
if(pm[clk] != ((phase)*msa/90)){ pm[clk] = (phase)*msa/90; dirty=true; } // 0x20 reset PLLA; 0x80 reset PLLB
}
void set_freq(uint8_t clk, uint8_t pll, uint32_t fout, uint8_t phase){
uint8_t rdiv = 0; // CLK pin sees fout/(2^rdiv)
if(fout < 500000){ rdiv = 7; fout *= 128; }; // Divide by 128 for fout 4..500kHz
uint16_t d = (16 * fxtal) / fout; // Integer part
if(fout > 30000000) d = (34 * fxtal) / fout; // when fvco is getting too low (400 MHz)
if( (d * (fout - 5000) / fxtal) != (d * (fout + 5000) / fxtal) ) d--; // Test if multiplier remains same for freq deviation +/- 5kHz, if not use different divider to make same
uint32_t fvco = d * fout; // Variable PLL VCO frequency at integer multiple of fout at around 27MHz*16 = 432MHz
set_pll(pll, fvco);
set_ms(clk, pll, fvco / fout, rdiv, phase);
_fout = fout; // cache
_div = d;
_msa128min512 = fvco / fxtal * 128 - 512;
_msb128=((uint64_t)(fvco % fxtal)*_MSC*128) / fxtal;
}
void pll_reset(){ if(dirty){ dirty=false; SendRegister(177, 0xA0); } } // reset PLLA and PLLB, if necessary
void oe(uint8_t mask){ SendRegister(3, ~mask); } // Output-enable mask: CLK2=4; CLK1=2; CLK0=1
void freq(uint32_t f, uint8_t i, uint8_t q){ // Set CLK0,1 (PLLA) to fout Hz with phase i, q, and prepare CLK2 (PLL2).
set_freq(0, 0, f, i);
set_freq(1, 0, f, q);