1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
// hwdef for Noctigon M44 2-channel light
// Copyright (C) 2023 Selene ToyKeeper
// SPDX-License-Identifier: GPL-3.0-or-later
#pragma once
/*
* Pin / Name / Function
* 1 PA6 ch2 LED PWM (boost) (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 (none)
* 7 PA0 Opamp 2 enable (channel 2 LEDs)
* 8 GND GND
* 9 VCC VCC
* 10 PC5 (none)
* 11 PC4 (none)
* 12 PC3 RESET
* 13 PC2 (none)
* 14 PC1 SCK
* 15 PC0 (none)
* 16 PB3 ch1 LED PWM (linear) (PWM1A)
* 17 PB2 MISO
* 18 PB1 MOSI / battery voltage (ADC6)
* 19 PB0 Opamp 1 enable (channel 1 LEDs)
* 20 PA7 e-switch (PCINT7)
* ADC12 thermal sensor
*/
#define ATTINY 1634
#include <avr/io.h>
#define HWDEF_C_FILE hwdef-noctigon-m44.c
// allow using aux LEDs as extra channel modes
#include "chan-rgbaux.h"
// channel modes:
// * 0. channel 1 only
// * 1. channel 2 only
// * 2. both channels, tied together, max "200%" power
// * 3. both channels, manual blend, max "100%" power
// * 4? both channels, manual blend, max 200% power
// * 4. both channels, auto blend, reversible
#define NUM_CHANNEL_MODES (5 + NUM_RGB_AUX_CHANNEL_MODES)
enum channel_modes_e {
CM_CH1 = 0,
CM_CH2,
CM_BOTH,
CM_BLEND,
CM_AUTO,
RGB_AUX_ENUMS
};
// right-most bit first, modes are in fedcba9876543210 order
#define CHANNEL_MODES_ENABLED 0b0000000000011111
#define USE_CHANNEL_MODE_ARGS
// _, _, _, 128=middle CCT, 0=warm-to-cool
#define CHANNEL_MODE_ARGS 0,0,0,128,0,RGB_AUX_CM_ARGS
// can use some of the common handlers
#define USE_CALC_2CH_BLEND
#define PWM_CHANNELS 1 // old, remove this
#define PWM_BITS 16 // 0 to 32640 (0 to 255 PWM + 0 to 127 DSM) at constant kHz
#define PWM_GET PWM_GET16
#define PWM_DATATYPE uint16_t
#define PWM_DATATYPE2 uint32_t // only needs 32-bit if ramp values go over 255
#define PWM1_DATATYPE uint16_t // 15-bit PWM+DSM ramp
//#define PWM2_DATATYPE uint16_t // max "200% power" ramp table
// PWM parameters of both channels are tied together because they share a counter
// dynamic PWM
#define PWM_TOP ICR1 // holds the TOP value for for variable-resolution PWM
#define PWM_TOP_INIT 255
#define PWM_CNT TCNT1 // for checking / resetting phase
// (max is (255 << 7), because it's 8-bit PWM plus 7 bits of DSM)
#define DSM_TOP (255<<7) // 15-bit resolution leaves 1 bit for carry
// timer interrupt for DSM
#define DSM_vect TIMER1_OVF_vect
#define DSM_INTCTRL TIMSK
#define DSM_OVF_bm (1<<TOIE1)
#define DELAY_FACTOR 90 // less time in delay() because more time spent in interrupts
// 1st channel (8 LEDs)
uint16_t ch1_dsm_lvl;
uint8_t ch1_pwm, ch1_dsm;
#define CH1_PIN PB3 // pin 16, Opamp reference
#define CH1_PWM OCR1A // OCR1A is the output compare register for PB3
#define CH1_ENABLE_PIN PB0 // pin 19, Opamp power
#define CH1_ENABLE_PORT PORTB // control port for PB0
// 2nd channel (8 LEDs)
uint16_t ch2_dsm_lvl;
uint8_t ch2_pwm, ch2_dsm;
#define CH2_PIN PA6 // pin 1, 2nd LED Opamp reference
#define CH2_PWM OCR1B // OCR1B is the output compare register for PA6
#define CH2_ENABLE_PIN PA0 // pin 7, Opamp power
#define CH2_ENABLE_PORT PORTA // control port for PA0
// e-switch
#define SWITCH_PIN PA7 // pin 20
#define SWITCH_PCINT PCINT7 // pin 20 pin change interrupt
#define SWITCH_PCIE PCIE0 // PCIE0 is for PCINT[7:0]
#define SWITCH_PCMSK PCMSK0 // PCMSK0 is for PCINT[7:0]
#define SWITCH_PORT PINA // PINA or PINB or PINC
#define SWITCH_PUE PUEA // pullup group A
#define PCINT_vect PCINT0_vect // ISR for PCINT[7:0]
#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
inline void hwdef_setup() {
// enable output ports
//DDRC = (1 << CH3_PIN);
DDRB = (1 << CH1_PIN)
| (1 << CH1_ENABLE_PIN)
;
DDRA = (1 << CH2_PIN)
| (1 << CH2_ENABLE_PIN)
| (1 << AUXLED_R_PIN)
| (1 << AUXLED_G_PIN)
| (1 << AUXLED_B_PIN)
| (1 << BUTTON_LED_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
// PWM for both channels
// WGM1[3:0]: 1,0,1,0: PWM, Phase Correct, adjustable (DS table 12-5)
// WGM1[3:0]: 1,1,1,0: PWM, Fast, adjustable (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<<WGM11) | (0<<WGM10) // adjustable PWM (TOP=ICR1) (DS table 12-5)
| (1<<COM1A1) | (0<<COM1A0) // PWM 1A in normal direction (DS table 12-4)
| (1<<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)
//| (1<<WGM13) | (1<<WGM12) // fast adjustable PWM (DS table 12-5)
| (1<<WGM13) | (0<<WGM12) // phase-correct adjustable PWM (DS table 12-5)
;
// set PWM resolution
PWM_TOP = PWM_TOP_INIT;
// set up interrupt for delta-sigma modulation
// (moved to hwdef.c functions so it can be enabled/disabled based on ramp level)
//DSM_INTCTRL |= DSM_OVF_bm; // interrupt once for each timer cycle
// set up e-switch
SWITCH_PUE = (1 << SWITCH_PIN); // pull-up for e-switch
SWITCH_PCMSK = (1 << SWITCH_PCINT); // enable pin change interrupt
}
#define LAYOUT_DEFINED
|