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Diffstat (limited to 'hwdef-Noctigon_KR4.h')
| -rw-r--r-- | hwdef-Noctigon_KR4.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/hwdef-Noctigon_KR4.h b/hwdef-Noctigon_KR4.h new file mode 100644 index 0000000..c1bc171 --- /dev/null +++ b/hwdef-Noctigon_KR4.h @@ -0,0 +1,147 @@ +#ifndef HWDEF_NOCTIGON_KR4_H +#define HWDEF_NOCTIGON_KR4_H + +/* Noctigon KR4 driver layout (attiny1634) + * + * Pin / Name / Function + * 1 PA6 FET PWM (direct drive) (PWM1B) + * 2 PA5 R: red aux LED (PWM0B) + * 3 PA4 G: green aux LED + * 4 PA3 B: blue aux LED + * 5 PA2 (none) + * 6 PA1 (none) + * 7 PA0 (none) + * 8 GND GND + * 9 VCC VCC + * 10 PC5 (none) + * 11 PC4 (none) + * 12 PC3 RESET + * 13 PC2 (none) + * 14 PC1 SCK + * 15 PC0 (none) PWM0A + * 16 PB3 main LED PWM (linear) (PWM1A) + * 17 PB2 MISO / e-switch (PCINT10) + * 18 PB1 MOSI / battery voltage (ADC6) + * 19 PB0 Opamp power + * 20 PA7 (none) + * 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 <avr/io.h> + +#define PWM_CHANNELS 1 +#define PWM_BITS 10 // 0 to 1023 at 4 kHz, not 0 to 255 at 16 kHz +#define PWM_TOP 1023 + +#define SWITCH_PIN PB2 // pin 17 +#define SWITCH_PCINT PCINT10 // pin 17 pin change interrupt +#define SWITCH_PCIE PCIE1 // PCIE1 is for PCINT[11:8] +#define SWITCH_PCMSK PCMSK1 // PCMSK1 is for PCINT[11:8] +#define SWITCH_PORT PINB // PINA or PINB or PINC +#define PCINT_vect PCINT1_vect // ISR for PCINT[11:8] + +// the button tends to short out the voltage divider, +// so ignore voltage while the button is being held +#define NO_LVP_WHILE_BUTTON_PRESSED + + +#define PWM1_PIN PB3 // pin 16, Opamp reference +#define PWM1_LVL OCR1A // OCR1A is the output compare register for PB3 + +#define PWM2_PIN PA6 // pin 1, DD FET PWM +#define PWM2_LVL OCR1B // OCR1B is the output compare register for PA6 + +#define LED_ENABLE_PIN PB0 // pin 19, Opamp power +#define LED_ENABLE_PORT PORTB // control port for PB0 + + +#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 0b10000111 +#define ADC_PRSCL 0x06 // clk/64 + +// TODO: calibrate this +// Raw ADC readings at 4.4V and 2.2V +// calibrate the voltage readout here +// estimated / calculated values are: +// (voltage - D1) * (R2/(R2+R1) * 256 / 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 + +#define TEMP_CHANNEL 0b00001111 + +// 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 + +// 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 + // Opamp level and Opamp on/off + DDRB = (1 << PWM1_PIN) + | (1 << LED_ENABLE_PIN); + // DD FET PWM, aux R/G/B + DDRA = (1 << PWM2_PIN) + | (1 << AUXLED_R_PIN) + | (1 << AUXLED_G_PIN) + | (1 << AUXLED_B_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 + // 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]: 0,0: PWM OC1B disabled (DS table 12-4) + TCCR1A = (1<<WGM11) | (1<<WGM10) // 10-bit (TOP=0x03FF) (DS table 12-5) + | (1<<COM1A1) | (0<<COM1A0) // PWM 1A in normal direction (DS table 12-4) + | (0<<COM1B1) | (0<<COM1B0) // PWM 1B in normal direction (DS table 12-4) + ; + TCCR1B = (0<<CS12) | (0<<CS11) | (1<<CS10) // clk/1 (no prescaling) (DS table 12-6) + | (0<<WGM13) | (0<<WGM12) // phase-correct PWM (DS table 12-5) + ; + + // set up e-switch + //PORTB = (1 << SWITCH_PIN); // TODO: configure PORTA / PORTB / PORTC? + PUEB = (1 << SWITCH_PIN); // pull-up for e-switch + SWITCH_PCMSK = (1 << SWITCH_PCINT); // enable pin change interrupt +} + +#define LAYOUT_DEFINED + +#endif |