1
#ifndef HWDEF_NOCTIGON_K1SBT90_H
2
#define HWDEF_NOCTIGON_K1SBT90_H
4
/* Noctigon K1-SBT90.2 driver layout (attiny1634)
5
* (mostly the same as KR4 driver)
7
* Pin / Name / Function
8
* 1 PA6 FET PWM (direct drive) (PWM1B)
9
* 2 PA5 R: red aux LED (PWM0B)
10
* 3 PA4 G: green aux LED
11
* 4 PA3 B: blue aux LED
23
* 16 PB3 main LED PWM (linear) (PWM1A)
24
* 17 PB2 MISO / e-switch (PCINT10)
25
* 18 PB1 MOSI / battery voltage (ADC6)
28
* ADC12 thermal sensor
30
* Main LED power uses one pin to turn the Opamp on/off,
31
* and one pin to control Opamp power level.
32
* Main brightness control uses the power level pin, with 4 kHz 10-bit PWM.
33
* The on/off pin is only used to turn the main LED on and off,
34
* not to change brightness.
35
* Also has a direct-drive FET for turbo.
44
#define PWM_CHANNELS 2
45
#define PWM_BITS 10 // 0 to 1023 at 4 kHz, not 0 to 255 at 16 kHz
48
#define SWITCH_PIN PB2 // pin 17
49
#define SWITCH_PCINT PCINT10 // pin 17 pin change interrupt
50
#define SWITCH_PCIE PCIE1 // PCIE1 is for PCINT[11:8]
51
#define SWITCH_PCMSK PCMSK1 // PCMSK1 is for PCINT[11:8]
52
#define SWITCH_PORT PINB // PINA or PINB or PINC
53
#define PCINT_vect PCINT1_vect // ISR for PCINT[11:8]
55
#define PWM1_PIN PB3 // pin 16, Opamp reference
56
#define PWM1_LVL OCR1A // OCR1A is the output compare register for PB3
58
#define PWM2_PIN PA6 // pin 1, DD FET PWM
59
#define PWM2_LVL OCR1B // OCR1B is the output compare register for PA6
61
#define LED_ENABLE_PIN PB0 // pin 19, Opamp power
62
#define LED_ENABLE_PORT PORTB // control port for PB0
65
#define USE_VOLTAGE_DIVIDER // use a dedicated pin, not VCC, because VCC input is flattened
66
#define VOLTAGE_PIN PB1 // Pin 18 / PB1 / ADC6
67
// pin to ADC mappings are in DS table 19-4
68
#define VOLTAGE_ADC ADC6D // digital input disable pin for PB1
69
// DIDR0/DIDR1 mappings are in DS section 19.13.5, 19.13.6
70
#define VOLTAGE_ADC_DIDR DIDR1 // DIDR channel for ADC6D
71
// DS tables 19-3, 19-4
72
// Bit 7 6 5 4 3 2 1 0
73
// REFS1 REFS0 REFEN ADC0EN MUX3 MUX2 MUX1 MUX0
74
// MUX[3:0] = 0, 1, 1, 0 for ADC6 / PB1
76
// REFS[1:0] = 1, 0 for internal 1.1V reference
77
// other bits reserved
78
#define ADMUX_VOLTAGE_DIVIDER 0b10000110
79
#define ADC_PRSCL 0x07 // clk/128
81
// TODO: calibrate this
82
// Raw ADC readings at 4.4V and 2.2V
83
// calibrate the voltage readout here
84
// estimated / calculated values are:
85
// (voltage - D1) * (R2/(R2+R1) * 256 / 1.1)
86
// D1, R1, R2 = 0, 330, 100
88
//#define ADC_44 981 // raw value at 4.40V
89
#define ADC_44 967 // manually tweaked so 4.16V will blink out 4.2
92
//#define ADC_22 489 // raw value at 2.20V
93
#define ADC_22 482 // manually tweaked so 4.16V will blink out 4.2
96
#define TEMP_CHANNEL 0b00001111
98
// this light has aux LEDs under the optic
99
#define AUXLED_R_PIN PA5 // pin 2
100
#define AUXLED_G_PIN PA4 // pin 3
101
#define AUXLED_B_PIN PA3 // pin 4
102
#define AUXLED_RGB_PORT PORTA // PORTA or PORTB or PORTC
103
#define AUXLED_RGB_DDR DDRA // DDRA or DDRB or DDRC
104
#define AUXLED_RGB_PUE PUEA // PUEA or PUEB or PUEC
106
// with so many pins, doing this all with #ifdefs gets awkward...
107
// ... so just hardcode it in each hwdef file instead
108
inline void hwdef_setup() {
109
// enable output ports
110
// Opamp level and Opamp on/off
111
DDRB = (1 << PWM1_PIN)
112
| (1 << LED_ENABLE_PIN);
113
// DD FET PWM, aux R/G/B
114
DDRA = (1 << PWM2_PIN)
115
| (1 << AUXLED_R_PIN)
116
| (1 << AUXLED_G_PIN)
117
| (1 << AUXLED_B_PIN)
121
// Setup PWM. F_pwm = F_clkio / 2 / N / TOP, where N = prescale factor, TOP = top of counter
122
// pre-scale for timer: N = 1
123
// WGM1[3:0]: 0,0,1,1: PWM, Phase Correct, 10-bit (DS table 12-5)
124
// CS1[2:0]: 0,0,1: clk/1 (No prescaling) (DS table 12-6)
125
// COM1A[1:0]: 1,0: PWM OC1A in the normal direction (DS table 12-4)
126
// COM1B[1:0]: 1,0: PWM OC1B in the normal direction (DS table 12-4)
127
TCCR1A = (1<<WGM11) | (1<<WGM10) // 10-bit (TOP=0x03FF) (DS table 12-5)
128
| (1<<COM1A1) | (0<<COM1A0) // PWM 1A in normal direction (DS table 12-4)
129
| (1<<COM1B1) | (0<<COM1B0) // PWM 1B in normal direction (DS table 12-4)
131
TCCR1B = (0<<CS12) | (0<<CS11) | (1<<CS10) // clk/1 (no prescaling) (DS table 12-6)
132
| (0<<WGM13) | (0<<WGM12) // phase-correct PWM (DS table 12-5)
136
//PORTB = (1 << SWITCH_PIN); // TODO: configure PORTA / PORTB / PORTC?
137
PUEB = (1 << SWITCH_PIN); // pull-up for e-switch
138
SWITCH_PCMSK = (1 << SWITCH_PCINT); // enable pin change interrupt
141
#define LAYOUT_DEFINED
added
removed
ToyKeeper/hwdef-Noctigon_K1-SBT90.h
