// Noctigon K9.3 driver layout (attiny1634) // Copyright (C) 2020-2023 Selene ToyKeeper // SPDX-License-Identifier: GPL-3.0-or-later #pragma once /* * Pin / Name / Function * 1 PA6 2nd LED PWM (linear) (PWM1B) * 2 PA5 R: red aux LED (PWM0B) * 3 PA4 G: green aux LED * 4 PA3 B: blue aux LED * 5 PA2 button LED * 6 PA1 Opamp 2 enable (2nd LEDs) * 7 PA0 Opamp 1 enable (main LEDs) * 8 GND GND * 9 VCC VCC * 10 PC5 (none) * 11 PC4 (none) * 12 PC3 RESET * 13 PC2 (none) * 14 PC1 SCK * 15 PC0 main LED PWM (FET) (PWM0A) * 16 PB3 main LED PWM (linear) (PWM1A) * 17 PB2 MISO * 18 PB1 MOSI / battery voltage (ADC6) * 19 PB0 (none) * 20 PA7 e-switch (PCINT7) * ADC12 thermal sensor * * Main LED power uses one pin to turn the Opamp on/off, * and one pin to control Opamp power level. * Main brightness control uses the power level pin, with 4 kHz 10-bit PWM. * The on/off pin is only used to turn the main LED on and off, * not to change brightness. * Some models also have a direct-drive FET for turbo. */ #ifdef ATTINY #undef ATTINY #endif #define ATTINY 1634 #include #define PWM_CHANNELS 3 // 2 for main LEDs, 1 for 2nd LEDs #define PWM_BITS 10 // 0 to 1023 at 4 kHz, not 0 to 255 at 16 kHz #define PWM_TOP 1023 #define SWITCH_PIN PA7 // pin 20 #define SWITCH_PCINT PCINT7 // pin 20 pin change interrupt #define SWITCH_PCIE PCIE0 // PCIE1 is for PCINT[7:0] #define SWITCH_PCMSK PCMSK0 // PCMSK1 is for PCINT[7:0] #define SWITCH_PORT PINA // PINA or PINB or PINC #define PCINT_vect PCINT0_vect // ISR for PCINT[7:0] #define PWM1_PIN PB3 // pin 16, Opamp reference #define PWM1_LVL OCR1A // OCR1A is the output compare register for PB3 #define PWM2_PIN PC0 // pin 15, DD FET PWM #define PWM2_LVL OCR0A // OCR0A is the output compare register for PC0 #define PWM3_PIN PA6 // pin 1, 2nd LED Opamp reference #define PWM3_LVL OCR1B // OCR1B is the output compare register for PA6 #define LED_ENABLE_PIN PA0 // pin 7, Opamp power #define LED_ENABLE_PORT PORTA // control port for PA0 #define LED2_ENABLE_PIN PA1 // pin 6, Opamp power #define LED2_ENABLE_PORT PORTA // control port for PA1 #define USE_VOLTAGE_DIVIDER // use a dedicated pin, not VCC, because VCC input is flattened #define VOLTAGE_PIN PB1 // Pin 18 / PB1 / ADC6 // pin to ADC mappings are in DS table 19-4 #define VOLTAGE_ADC ADC6D // digital input disable pin for PB1 // DIDR0/DIDR1 mappings are in DS section 19.13.5, 19.13.6 #define VOLTAGE_ADC_DIDR DIDR1 // DIDR channel for ADC6D // DS tables 19-3, 19-4 // Bit 7 6 5 4 3 2 1 0 // REFS1 REFS0 REFEN ADC0EN MUX3 MUX2 MUX1 MUX0 // MUX[3:0] = 0, 1, 1, 0 for ADC6 / PB1 // divided by ... // REFS[1:0] = 1, 0 for internal 1.1V reference // other bits reserved #define ADMUX_VOLTAGE_DIVIDER 0b10000110 #define ADC_PRSCL 0x07 // clk/128 // Raw ADC readings at 4.4V and 2.2V // calibrate the voltage readout here // estimated / calculated values are: // (voltage - D1) * (R2/(R2+R1) * 1024 / 1.1) // D1, R1, R2 = 0, 330, 100 #ifndef ADC_44 //#define ADC_44 981 // raw value at 4.40V #define ADC_44 967 // manually tweaked so 4.16V will blink out 4.2 #endif #ifndef ADC_22 //#define ADC_22 489 // raw value at 2.20V #define ADC_22 482 // manually tweaked so 4.16V will blink out 4.2 #endif // this light has aux LEDs under the optic #define AUXLED_R_PIN PA5 // pin 2 #define AUXLED_G_PIN PA4 // pin 3 #define AUXLED_B_PIN PA3 // pin 4 #define AUXLED_RGB_PORT PORTA // PORTA or PORTB or PORTC #define AUXLED_RGB_DDR DDRA // DDRA or DDRB or DDRC #define AUXLED_RGB_PUE PUEA // PUEA or PUEB or PUEC #define BUTTON_LED_PIN PA2 // pin 5 #define BUTTON_LED_PORT PORTA // for all "PA" pins #define BUTTON_LED_DDR DDRA // for all "PA" pins #define BUTTON_LED_PUE PUEA // for all "PA" pins // with so many pins, doing this all with #ifdefs gets awkward... // ... so just hardcode it in each hwdef file instead inline void hwdef_setup() { // enable output ports DDRC = (1 << PWM2_PIN); DDRB = (1 << PWM1_PIN); DDRA = (1 << PWM3_PIN) | (1 << AUXLED_R_PIN) | (1 << AUXLED_G_PIN) | (1 << AUXLED_B_PIN) | (1 << BUTTON_LED_PIN) | (1 << LED_ENABLE_PIN) | (1 << LED2_ENABLE_PIN) ; // configure PWM // Setup PWM. F_pwm = F_clkio / 2 / N / TOP, where N = prescale factor, TOP = top of counter // pre-scale for timer: N = 1 // Linear opamp PWM for both main and 2nd LEDs (10-bit) // WGM1[3:0]: 0,0,1,1: PWM, Phase Correct, 10-bit (DS table 12-5) // CS1[2:0]: 0,0,1: clk/1 (No prescaling) (DS table 12-6) // COM1A[1:0]: 1,0: PWM OC1A in the normal direction (DS table 12-4) // COM1B[1:0]: 1,0: PWM OC1B in the normal direction (DS table 12-4) TCCR1A = (1<