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-rw-r--r--hw/thefreeman/boost-fwaa-mp3432-hdr-dac-rgb/cfg.h116
-rw-r--r--hw/thefreeman/boost-fwaa-mp3432-hdr-dac-rgb/hwdef.h187
-rw-r--r--hw/thefreeman/boost21-mp3431-hdr-dac-argb/cfg.h119
-rw-r--r--hw/thefreeman/boost21-mp3431-hdr-dac-argb/hwdef.c90
-rw-r--r--hw/thefreeman/boost21-mp3431-hdr-dac-argb/hwdef.h181
-rw-r--r--hw/thefreeman/lin16dac/cfg.h61
-rw-r--r--hw/thefreeman/lin16dac/hwdef.c92
-rw-r--r--hw/thefreeman/lin16dac/hwdef.h137
8 files changed, 983 insertions, 0 deletions
diff --git a/hw/thefreeman/boost-fwaa-mp3432-hdr-dac-rgb/cfg.h b/hw/thefreeman/boost-fwaa-mp3432-hdr-dac-rgb/cfg.h
new file mode 100644
index 0000000..460346e
--- /dev/null
+++ b/hw/thefreeman/boost-fwaa-mp3432-hdr-dac-rgb/cfg.h
@@ -0,0 +1,116 @@
+// thefreeman's BCK-FWAA-MP3432 (li-ion / AA)
+// Copyright (C) 2023 TBD (thefreeman), Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
+
+#define MODEL_NUMBER "1632"
+#include "hwdef-thefreeman-boost-fwaa-mp3432-hdr-dac-rgb.h"
+// ATTINY: 1616
+
+// HPRsense : 4.2+0.3+20 = 24.5mR (DMN1004UFDF+trace resistance+20mR)
+// R1=165k Vsense=49.02 Iout=2001mA
+// LPRsense : 2R
+// transition DAC lvl 14, ramp lvl 51
+// fifth power ramp 0.06mA to 2001mA
+
+#define RAMP_SIZE 150
+
+// 4 ramp segments:
+// - low 0.55V
+// - low 2.5V
+// - high 0.55V
+// - high 2.5V
+// PWM1: DAC Data
+#define PWM1_LEVELS 2, 3, 4, 5, 6, 8, 9, 11, 14, 16, 19, 23, 26, 31, 35, 41, 47, 54, 61, 69, 78, 89,100,112,125,140,155,173,191,212,234, \
+ 56, 62, 68, 74, 82, 89, 97,106,115,125,136,147,159,172,186,200,215,232,249, \
+ 14, 15, 17, 18, 19, 20, 22, 23, 25, 26, 28, 30, 32, 34, 36, 38, 40, 43, 45, 48, 51, 54, 57, 60, 63, 66, 70, 74, 77, 81, 86, 90, 95, 99,104,109,114,120,126,131,138,144,150,157,164,171,179,187,195,203,212,221,230,239,249, \
+ 57, 59, 61, 64, 66, 69, 72, 74, 77, 80, 83, 86, 90, 93, 96,100,103,107,111,115,119,123,127,132,136,141,145,150,155,160,166,171,176,182,188,194,200,206,213,219,226,233,240,247,255
+// PWM Tops: VREF selector (0.55V=16,1.1V=17, 2.5V=18, 4.3V=19, 1.5V=20)
+#define PWM_TOPS 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, \
+ 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, \
+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, \
+ 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18
+
+#define MAX_1x7135 50
+#define DEFAULT_LEVEL 44
+#define HDR_ENABLE_LEVEL_MIN 51 // when HDR FET turns ON
+
+// no PWM, so MCU clock speed can be slow
+#define HALFSPEED_LEVEL 46
+#define QUARTERSPEED_LEVEL 45 // seems to run fine at 10kHz/4, try reducing more
+
+#define RAMP_SMOOTH_FLOOR 1
+#define RAMP_SMOOTH_CEIL 130 // ~50% power, ~??? mA / ??? lm
+#define RAMP_DISCRETE_FLOOR 1
+#define RAMP_DISCRETE_CEIL 130
+#define RAMP_DISCRETE_STEPS 7
+
+// 20 [45] 70 95 120
+#define SIMPLE_UI_FLOOR 20
+#define SIMPLE_UI_CEIL 120 // ~37% power, ~??? mA / ??? lm
+#define SIMPLE_UI_STEPS 5
+
+// don't blink mid-ramp
+#ifdef BLINK_AT_RAMP_MIDDLE
+#undef BLINK_AT_RAMP_MIDDLE
+#endif
+
+// thermal config
+
+// temperature limit
+#define THERM_FASTER_LEVEL 130
+#define MIN_THERM_STEPDOWN MAX_1x7135
+
+//#define THERM_LOOKAHEAD 2 // 4 by default -> decrease for longer turbo
+//#define THERM_NEXT_WARNING_THRESHOLD 48 // 24 by default -> increase for fewer adjustments (more stable output on large time scale)
+//#define THERM_RESPONSE_MAGNITUDE 16 // 64 by default -> decrease for smaller adjustments (removes dip post turbo)
+//#define THERM_WINDOW_SIZE 1 // 2 by default -> decrease for tighter temperature regulation
+
+
+// UI
+
+//#define SIMPLE_UI_ACTIVE 0 // advanced UI by default
+
+// allow Aux Config and Strobe Modes in Simple UI
+#define USE_EXTENDED_SIMPLE_UI
+
+// Allow 3C in Simple UI for switching between smooth and stepped ramping
+#define USE_SIMPLE_UI_RAMPING_TOGGLE
+
+#define DEFAULT_2C_STYLE 1 // enable 2 click turbo
+
+
+// AUX
+
+// this light has three aux LED channels: R, G, B
+#define USE_AUX_RGB_LEDS
+
+// show each channel while it scroll by in the menu
+#define USE_CONFIG_COLORS
+
+// blink numbers on the main LEDs by default
+#define DEFAULT_BLINK_CHANNEL CM_MAIN
+
+// use aux red + aux blue for police strobe
+#define USE_POLICE_COLOR_STROBE_MODE
+#define POLICE_STROBE_USES_AUX
+#define POLICE_COLOR_STROBE_CH1 CM_AUXRED
+#define POLICE_COLOR_STROBE_CH2 CM_AUXBLU
+
+// the aux LEDs are front-facing, so turn them off while main LEDs are on
+#ifdef USE_INDICATOR_LED_WHILE_RAMPING
+#undef USE_INDICATOR_LED_WHILE_RAMPING
+#endif
+
+
+// Misc
+
+#define PARTY_STROBE_ONTIME 1 // slow down party strobe
+#define STROBE_OFF_LEVEL 1 // keep the regulator chip on between pulses
+
+// smoother candle mode with bigger oscillations
+#define CANDLE_AMPLITUDE 40
+
+// enable 13H factory reset so it can be used on tail e-switch lights
+#define USE_SOFT_FACTORY_RESET
+
diff --git a/hw/thefreeman/boost-fwaa-mp3432-hdr-dac-rgb/hwdef.h b/hw/thefreeman/boost-fwaa-mp3432-hdr-dac-rgb/hwdef.h
new file mode 100644
index 0000000..9126a1a
--- /dev/null
+++ b/hw/thefreeman/boost-fwaa-mp3432-hdr-dac-rgb/hwdef.h
@@ -0,0 +1,187 @@
+// hwdef for thefreeman's boost FWAA driver 1.1 w/ MP3432, HDR DAC, RGB aux
+// Copyright (C) 2023 TBD (thefreeman), Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
+
+/* thefreeman’s FWAA AA/li-ion Boost driver based on MP3432 and attiny1616
+ * with high dynamic range and DAC control, AUX : RGB
+ * hardware versions : 1.0, 1.1
+ *
+ * Pin / Name / Function
+ * 1 PA2 BattLVL (ADC0 - AIN2)
+ * 2 PA3
+ * 3 GND GND
+ * 4 VCC VCC
+ * 5 PA4 BST EN: boost enable
+ * 6 PA5 HDR
+ * 7 PA6 DAC
+ * 8 PA7
+ * 9 PB5 B: blue aux LED
+ * 10 PB4 G: green aux LED
+ * 11 PB3 R: red aux LED
+ * 12 PB2 IN- NFET
+ * 13 PB1
+ * 14 PB0
+ * 15 PC0
+ * 16 PC1
+ * 17 PC2
+ * 18 PC3 e-switch
+ * 19 PA0 UDPI
+ * 20 PA1
+ *
+ * BST EN enable the boost regulator and Op-Amp
+ * DAC sets the current, max current depends on Vset voltage divider and Rsense
+ * HDR FET switches between high value Rsense (low current range, pin low),
+ * and low value Rsense (high current range, pin high)
+ * IN- NFET : pull up after BST enable to eliminate startup flash, pull down otherwise
+ */
+
+#define ATTINY 1616
+#include <avr/io.h>
+
+#define HWDEF_C_FILE hwdef-thefreeman-boost21-mp3431-hdr-dac-argb.c
+
+// allow using aux LEDs as extra channel modes
+#include "chan-rgbaux.h"
+
+// channel modes:
+// * 0. main LEDs
+// * 1+. aux RGB
+#define NUM_CHANNEL_MODES (1 + NUM_RGB_AUX_CHANNEL_MODES)
+enum CHANNEL_MODES {
+ CM_MAIN = 0,
+ RGB_AUX_ENUMS
+};
+
+#define DEFAULT_CHANNEL_MODE CM_MAIN
+
+// right-most bit first, modes are in fedcba9876543210 order
+#define CHANNEL_MODES_ENABLED 0b0000000000000001
+
+
+#define PWM_CHANNELS 1 // old, remove this
+
+#define PWM_BITS 8 // 8-bit DAC
+#define PWM_GET PWM_GET8
+#define PWM_DATATYPE uint8_t
+#define PWM_DATATYPE2 uint16_t // only needs 32-bit if ramp values go over 255
+#define PWM1_DATATYPE uint8_t // main LED ramp
+
+// main LED outputs
+#define DAC_LVL DAC0.DATA // 0 to 255, for 0V to Vref
+#define DAC_VREF VREF.CTRLA // 0.55V or 2.5V
+#define PWM_TOP_INIT 255 // highest value used in top half of ramp (unused?)
+// Vref values
+#define V055 16
+#define V11 17
+#define V25 18
+#define V43 19
+#define V15 20
+
+// BST enable
+#define BST_ENABLE_PIN PIN4_bp
+#define BST_ENABLE_PORT PORTA_OUT
+
+// HDR
+// turns on HDR FET for the high current range
+#define HDR_ENABLE_PIN PIN5_bp
+#define HDR_ENABLE_PORT PORTA_OUT
+
+// IN- NFET
+// pull high to force output to zero to eliminate the startup flash
+#define IN_NFET_DELAY_TIME 4 // (ms)
+#define IN_NFET_ENABLE_PIN PIN2_bp
+#define IN_NFET_ENABLE_PORT PORTB_OUT
+
+// e-switch
+#ifndef SWITCH_PIN
+#define SWITCH_PIN PIN3_bp
+#define SWITCH_PORT VPORTC.IN
+#define SWITCH_ISC_REG PORTC.PIN3CTRL
+#define SWITCH_VECT PORTC_PORT_vect
+#define SWITCH_INTFLG VPORTC.INTFLAGS
+#define SWITCH_PCINT PCINT0
+#define PCINT_vect PCINT0_vect
+#endif
+
+// Voltage divider battLVL
+#define USE_VOLTAGE_DIVIDER // use a dedicated pin, not VCC, because VCC input is regulated
+#define DUAL_VOLTAGE_FLOOR 21 // for AA/14500 boost drivers, don't indicate low voltage if below this level
+#define DUAL_VOLTAGE_LOW_LOW 7 // the lower voltage range's danger zone 0.7 volts (NiMH)
+#define ADMUX_VOLTAGE_DIVIDER ADC_MUXPOS_AIN2_gc // which ADC channel to read
+
+// 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)
+// Resistors are 330k and 100k
+#ifndef ADC_44
+#define ADC_44 951 // raw value at 4.40V
+#endif
+#ifndef ADC_22
+#define ADC_22 476 // raw value at 2.20V
+#endif
+
+// this driver allows for aux LEDs under the optic
+#define AUXLED_R_PIN PIN3_bp
+#define AUXLED_G_PIN PIN4_bp
+#define AUXLED_B_PIN PIN5_bp
+#define AUXLED_RGB_PORT PORTB // PORTA or PORTB or PORTC
+
+// this light has three aux LED channels: R, G, B
+#define USE_AUX_RGB_LEDS
+
+
+inline void hwdef_setup() {
+
+ // TODO: for this DAC controlled-light, try to decrease the clock speed or use the ULP
+ // set up the system clock to run at 10 MHz to match other attiny1616 lights
+ _PROTECTED_WRITE( CLKCTRL.MCLKCTRLB,
+ CLKCTRL_PDIV_2X_gc | CLKCTRL_PEN_bm );
+
+ VPORTA.DIR = PIN4_bm // BST EN
+ | PIN5_bm // HDR
+ | PIN6_bm; // DAC
+ VPORTB.DIR = PIN2_bm // IN- NFET
+ | PIN3_bm // R
+ | PIN4_bm // G
+ | PIN5_bm; // B
+ //VPORTC.DIR = PIN0_bm | PIN1_bm;
+
+ // enable pullups on the input pins to reduce power
+ PORTA.PIN0CTRL = PORT_PULLUPEN_bm;
+ PORTA.PIN1CTRL = PORT_PULLUPEN_bm;
+ //PORTA.PIN2CTRL = PORT_PULLUPEN_bm; // BattLVL
+ PORTA.PIN3CTRL = PORT_PULLUPEN_bm;
+ //PORTA.PIN4CTRL = PORT_PULLUPEN_bm; // EN
+ //PORTA.PIN5CTRL = PORT_PULLUPEN_bm; // HDR
+ //PORTA.PIN6CTRL = PORT_PULLUPEN_bm; // DAC
+ PORTA.PIN7CTRL = PORT_PULLUPEN_bm;
+
+ PORTB.PIN0CTRL = PORT_PULLUPEN_bm;
+ PORTB.PIN1CTRL = PORT_PULLUPEN_bm;
+ //PORTB.PIN2CTRL = PORT_PULLUPEN_bm; // IN- NFET
+ //PORTB.PIN3CTRL = PORT_PULLUPEN_bm; // R
+ //PORTB.PIN4CTRL = PORT_PULLUPEN_bm; // G
+ //PORTB.PIN5CTRL = PORT_PULLUPEN_bm; // B
+
+ PORTC.PIN0CTRL = PORT_PULLUPEN_bm;
+ PORTC.PIN1CTRL = PORT_PULLUPEN_bm;
+ PORTC.PIN2CTRL = PORT_PULLUPEN_bm;
+ PORTC.PIN3CTRL = PORT_PULLUPEN_bm
+ | PORT_ISC_BOTHEDGES_gc; // e-switch
+
+ // set up the DAC
+ // https://ww1.microchip.com/downloads/en/DeviceDoc/ATtiny1614-16-17-DataSheet-DS40002204A.pdf
+ // DAC ranges from 0V to (255 * Vref) / 256
+ // also VREF_DAC0REFSEL_0V55_gc and VREF_DAC0REFSEL_1V1_gc and VREF_DAC0REFSEL_2V5_gc
+ VREF.CTRLA |= VREF_DAC0REFSEL_2V5_gc;
+ VREF.CTRLB |= VREF_DAC0REFEN_bm;
+ DAC0.CTRLA = DAC_ENABLE_bm | DAC_OUTEN_bm;
+ DAC0.DATA = 255; // set the output voltage
+
+}
+
+
+#define LAYOUT_DEFINED
+
diff --git a/hw/thefreeman/boost21-mp3431-hdr-dac-argb/cfg.h b/hw/thefreeman/boost21-mp3431-hdr-dac-argb/cfg.h
new file mode 100644
index 0000000..66cc2d0
--- /dev/null
+++ b/hw/thefreeman/boost21-mp3431-hdr-dac-argb/cfg.h
@@ -0,0 +1,119 @@
+// thefreeman's BST21 BST20-FWxA (no button LED)
+// Copyright (C) 2023 TBD (thefreeman), Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
+
+#define MODEL_NUMBER "1631"
+#include "hwdef-thefreeman-boost21-mp3431-hdr-dac-argb.h"
+// ATTINY: 1616
+
+// HPRsense : 1.7+0.3+5 = 7mR (DMN22M5UFG+trace resistance+5mR)
+// Vsense=42.46mV, R1= 191k
+// LPRsense : 1R
+// transition DAC level 8, ramp level 45
+// fifth power ramp 0.1mA to 6066mA
+
+#define RAMP_SIZE 150
+
+// 4 ramp segments:
+// - low 0.55V
+// - low 2.5V
+// - high 0.55V
+// - high 2.5V
+// PWM1: DAC Data
+#define PWM1_LEVELS 2, 3, 4, 5, 7, 9, 11, 13, 16, 19, 23, 28, 33, 39, 45, 53, 61, 71, 81, 93,106,121,137,155,175,196,220,246, \
+ 60, 67, 74, 82, 91,100,110,121,133,146,159,174,190,207,224,244, \
+ 8, 9, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 21, 23, 24, 26, 27, 29, 31, 33, 35, 37, 40, 42, 45, 47, 50, 53, 56, 59, 62, 66, 69, 73, 77, 81, 85, 90, 94, 99,104,109,114,120,126,132,138,144,151,158,165,173,180,188,196,205,214,223,232,242,252, \
+ 57, 60, 62, 65, 67, 70, 73, 76, 78, 82, 85, 88, 91, 95, 98,102,105,109,113,117,121,126,130,135,139,144,149,154,159,164,170,175,181,187,193,199,206,212,219,225,232,240,247,255
+// PWM Tops: VREF selector (0.55V=16,1.1V=17, 2.5V=18, 4.3V=19, 1.5V=20)
+#define PWM_TOPS 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, \
+ 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, \
+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, \
+ 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18
+
+#define MAX_1x7135 44
+#define DEFAULT_LEVEL 44
+#define HDR_ENABLE_LEVEL_MIN 45 // when HDR FET turns ON
+
+// no PWM, so MCU clock speed can be slow
+#define HALFSPEED_LEVEL 41
+#define QUARTERSPEED_LEVEL 40 // seems to run fine at 10kHz/4, try reducing more
+
+#define RAMP_SMOOTH_FLOOR 1
+#define RAMP_SMOOTH_CEIL 130 // 50% / 3A / 1000 lm
+// 1 22 [44] 65 87 108 130
+#define RAMP_DISCRETE_FLOOR 1
+#define RAMP_DISCRETE_CEIL 130
+#define RAMP_DISCRETE_STEPS 7
+
+// 20 [45] 70 95 120
+#define SIMPLE_UI_FLOOR 20
+#define SIMPLE_UI_CEIL 120 // ~2.25A / ~750 lm
+#define SIMPLE_UI_STEPS 5
+
+// don't blink mid-ramp
+#ifdef BLINK_AT_RAMP_MIDDLE
+#undef BLINK_AT_RAMP_MIDDLE
+#endif
+
+// thermal config
+
+// temperature limit
+#define THERM_FASTER_LEVEL 130 // stop panicking at 50%/3A
+#define MIN_THERM_STEPDOWN MAX_1x7135
+
+//#define THERM_LOOKAHEAD 4 // 4 by default -> decrease for longer turbo
+#define THERM_NEXT_WARNING_THRESHOLD 48 // 24 by default -> increase for fewer adjustments (more stable output on large time scale)
+#define THERM_RESPONSE_MAGNITUDE 32 // 64 by default -> decrease for smaller adjustments (removes dip post turbo)
+//#define THERM_WINDOW_SIZE 1 // 2 by default -> decrease for tighter temperature regulation
+
+
+// UI
+
+//#define SIMPLE_UI_ACTIVE 0 // advanced UI by default
+
+// allow Aux Config and Strobe Modes in Simple UI
+#define USE_EXTENDED_SIMPLE_UI
+
+// Allow 3C in Simple UI for switching between smooth and stepped ramping
+#define USE_SIMPLE_UI_RAMPING_TOGGLE
+
+#define DEFAULT_2C_STYLE 1 // enable 2 click turbo
+
+
+// AUX
+
+//#define USE_BUTTON_LED
+
+// this light has three aux LED channels: R, G, B
+#define USE_AUX_RGB_LEDS
+
+// show each channel while it scroll by in the menu
+#define USE_CONFIG_COLORS
+
+// blink numbers on the main LEDs by default
+#define DEFAULT_BLINK_CHANNEL CM_MAIN
+
+// use aux red + aux blue for police strobe
+#define USE_POLICE_COLOR_STROBE_MODE
+#define POLICE_STROBE_USES_AUX
+#define POLICE_COLOR_STROBE_CH1 CM_AUXRED
+#define POLICE_COLOR_STROBE_CH2 CM_AUXBLU
+
+// the aux LEDs are front-facing, so turn them off while main LEDs are on
+#ifdef USE_INDICATOR_LED_WHILE_RAMPING
+#undef USE_INDICATOR_LED_WHILE_RAMPING
+#endif
+
+
+// Misc
+
+#define PARTY_STROBE_ONTIME 1 // slow down party strobe
+#define STROBE_OFF_LEVEL 1 // keep the regulator chip on between pulses
+
+// smoother candle mode with bigger oscillations
+#define CANDLE_AMPLITUDE 40
+
+// enable 13H factory reset so it can be used on tail e-switch lights
+#define USE_SOFT_FACTORY_RESET
+
diff --git a/hw/thefreeman/boost21-mp3431-hdr-dac-argb/hwdef.c b/hw/thefreeman/boost21-mp3431-hdr-dac-argb/hwdef.c
new file mode 100644
index 0000000..31feec9
--- /dev/null
+++ b/hw/thefreeman/boost21-mp3431-hdr-dac-argb/hwdef.c
@@ -0,0 +1,90 @@
+// thefreeman boost driver 2.1 output helper functions
+// Copyright (C) 2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
+
+#include "chan-rgbaux.c"
+
+void set_level_zero();
+
+void set_level_main(uint8_t level);
+bool gradual_tick_main(uint8_t gt);
+
+
+Channel channels[] = {
+ { // main LEDs
+ .set_level = set_level_main,
+ .gradual_tick = gradual_tick_main
+ },
+ RGB_AUX_CHANNELS
+};
+
+
+void set_level_zero() {
+ DAC_LVL = 0; // DAC off
+ DAC_VREF = V055; // low Vref
+ HDR_ENABLE_PORT &= ~(1 << HDR_ENABLE_PIN); // HDR off
+
+ // prevent post-off flash
+ IN_NFET_ENABLE_PORT |= (1 << IN_NFET_ENABLE_PIN);
+ delay_4ms(IN_NFET_DELAY_TIME/4);
+ IN_NFET_ENABLE_PORT &= ~(1 << IN_NFET_ENABLE_PIN);
+
+ // turn off boost last
+ BST_ENABLE_PORT &= ~(1 << BST_ENABLE_PIN); // BST off
+}
+
+// single set of LEDs with 1 regulated power channel
+// and low/high HDR plus low/high Vref as different "gears"
+void set_level_main(uint8_t level) {
+ uint8_t noflash = 0;
+
+ // when turning on from off, use IN_NFET to prevent a flash
+ if ((! actual_level) && (level < HDR_ENABLE_LEVEL_MIN)) {
+ noflash = 1;
+ IN_NFET_ENABLE_PORT |= (1 << IN_NFET_ENABLE_PIN);
+ }
+
+ // BST on first, to give it a few extra microseconds to spin up
+ BST_ENABLE_PORT |= (1 << BST_ENABLE_PIN);
+
+ // pre-load ramp data so it can be assigned faster later
+ PWM_DATATYPE dac_lvl = PWM_GET(pwm1_levels, level);
+ PWM_DATATYPE dac_vref = PWM_GET(pwm_tops, level);
+
+ // enable HDR on top half of ramp
+ if (level >= (HDR_ENABLE_LEVEL_MIN-1))
+ HDR_ENABLE_PORT |= (1 << HDR_ENABLE_PIN);
+ else
+ HDR_ENABLE_PORT &= ~(1 << HDR_ENABLE_PIN);
+
+ // set these in successive clock cycles to avoid getting out of sync
+ // (minimizes ramp bumps when changing gears)
+ DAC_LVL = dac_lvl;
+ DAC_VREF = dac_vref;
+
+ if (noflash) {
+ // wait for flash prevention to finish
+ delay_4ms(IN_NFET_DELAY_TIME/4);
+ IN_NFET_ENABLE_PORT &= ~(1 << IN_NFET_ENABLE_PIN);
+ }
+}
+
+bool gradual_tick_main(uint8_t gt) {
+ // if HDR and Vref "engine gear" is the same, do a small adjustment...
+ // otherwise, simply jump to the next ramp level
+ // and let set_level() handle any gear changes
+
+ PWM_DATATYPE dac_next = PWM_GET(pwm1_levels, gt);
+ PWM_DATATYPE vref_next = PWM_GET(pwm_tops, gt);
+
+ // different gear = full adjustment
+ if (vref_next != DAC_VREF) return true; // let parent set_level() for us
+
+ // same gear = small adjustment
+ GRADUAL_ADJUST_SIMPLE(dac_next, DAC_LVL);
+ if (dac_next == DAC_LVL) return true; // done
+
+ return false; // not done yet
+}
+
diff --git a/hw/thefreeman/boost21-mp3431-hdr-dac-argb/hwdef.h b/hw/thefreeman/boost21-mp3431-hdr-dac-argb/hwdef.h
new file mode 100644
index 0000000..1c35014
--- /dev/null
+++ b/hw/thefreeman/boost21-mp3431-hdr-dac-argb/hwdef.h
@@ -0,0 +1,181 @@
+// hwdef for thefreeman's boost driver 2.1 w/ MP3431, DAC, ARGB
+// Copyright (C) 2023 TBD (thefreeman), Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
+
+/* thefreeman’s Boost driver based on MP3431 and attiny1616
+ * with high dynamic range and DAC control, AUX : RGB + button
+ * hardware version : 2.0+
+ * compatible with BST20-FWxA v1.0 (no button LED A)
+ *
+ * Pin / Name / Function
+ * 1 PA2
+ * 2 PA3
+ * 3 GND GND
+ * 4 VCC VCC
+ * 5 PA4
+ * 6 PA5
+ * 7 PA6 DAC
+ * 8 PA7
+ * 9 PB5 IN- NFET
+ * 10 PB4 HDR
+ * 11 PB3 B: blue aux LED
+ * 12 PB2 G: green aux LED
+ * 13 PB1 R: red aux LED
+ * 14 PB0
+ * 15 PC0 boost enable
+ * 16 PC1 A: button LED
+ * 17 PC2 e-switch
+ * 18 PC3
+ * 19 PA0 UDPI
+ * 20 PA1
+ *
+ * BST EN enable the boost regulator and Op-Amp
+ * DAC sets the current, max current depends on Vset voltage divider and Rsense
+ * HDR FET switches between high value Rsense (low current range, pin low),
+ * and low value Rsense (high current range, pin high)
+ * IN- NFET : pull up after BST enable to eliminate startup flash, pull down otherwise
+ */
+
+#define ATTINY 1616
+#include <avr/io.h>
+
+#define HWDEF_C_FILE hwdef-thefreeman-boost21-mp3431-hdr-dac-argb.c
+
+// allow using aux LEDs as extra channel modes
+#include "chan-rgbaux.h"
+
+// channel modes:
+// * 0. main LEDs
+// * 1+. aux RGB
+#define NUM_CHANNEL_MODES (1 + NUM_RGB_AUX_CHANNEL_MODES)
+enum CHANNEL_MODES {
+ CM_MAIN = 0,
+ RGB_AUX_ENUMS
+};
+
+#define DEFAULT_CHANNEL_MODE CM_MAIN
+
+// right-most bit first, modes are in fedcba9876543210 order
+#define CHANNEL_MODES_ENABLED 0b0000000000000001
+
+
+#define PWM_CHANNELS 1 // old, remove this
+
+#define PWM_BITS 8 // 8-bit DAC
+#define PWM_GET PWM_GET8
+#define PWM_DATATYPE uint8_t
+#define PWM_DATATYPE2 uint16_t // only needs 32-bit if ramp values go over 255
+#define PWM1_DATATYPE uint8_t // main LED ramp
+
+// main LED outputs
+#define DAC_LVL DAC0.DATA // 0 to 255, for 0V to Vref
+#define DAC_VREF VREF.CTRLA // 0.55V or 2.5V
+#define PWM_TOP_INIT 255 // highest value used in top half of ramp (unused?)
+// Vref values
+#define V055 16
+#define V11 17
+#define V25 18
+#define V43 19
+#define V15 20
+
+// BST enable
+#define BST_ENABLE_PIN PIN0_bp
+#define BST_ENABLE_PORT PORTC_OUT
+
+// HDR
+// turns on HDR FET for the high current range
+#define HDR_ENABLE_PIN PIN4_bp
+#define HDR_ENABLE_PORT PORTB_OUT
+
+// IN- NFET
+// pull high to force output to zero to eliminate the startup flash
+#define IN_NFET_DELAY_TIME 8 // (ms)
+#define IN_NFET_ENABLE_PIN PIN5_bp
+#define IN_NFET_ENABLE_PORT PORTB_OUT
+
+// e-switch
+#ifndef SWITCH_PIN
+#define SWITCH_PIN PIN2_bp
+#define SWITCH_PORT VPORTC.IN
+#define SWITCH_ISC_REG PORTC.PIN2CTRL
+#define SWITCH_VECT PORTC_PORT_vect
+#define SWITCH_INTFLG VPORTC.INTFLAGS
+#define SWITCH_PCINT PCINT0
+#define PCINT_vect PCINT0_vect
+#endif
+
+// average drop across diode on this hardware
+#ifndef VOLTAGE_FUDGE_FACTOR
+#define VOLTAGE_FUDGE_FACTOR 0 // using a PFET so no appreciable drop
+#endif
+
+// this driver allows for aux LEDs under the optic
+#define AUXLED_R_PIN PIN1_bp
+#define AUXLED_G_PIN PIN2_bp
+#define AUXLED_B_PIN PIN3_bp
+#define AUXLED_RGB_PORT PORTB // PORTA or PORTB or PORTC
+
+// this light has three aux LED channels: R, G, B
+#define USE_AUX_RGB_LEDS
+
+// A: button LED
+#ifndef BUTTON_LED_PIN
+#define BUTTON_LED_PIN PIN1_bp
+#define BUTTON_LED_PORT PORTC
+#endif
+
+
+inline void hwdef_setup() {
+
+ // TODO: for this DAC controlled-light, try to decrease the clock speed or use the ULP
+ // set up the system clock to run at 10 MHz to match other attiny1616 lights
+ _PROTECTED_WRITE( CLKCTRL.MCLKCTRLB,
+ CLKCTRL_PDIV_2X_gc | CLKCTRL_PEN_bm );
+
+ VPORTA.DIR = PIN6_bm; // DAC
+ VPORTB.DIR = PIN1_bm // R
+ | PIN2_bm // G
+ | PIN3_bm // B
+ | PIN4_bm // HDR
+ | PIN5_bm; // IN- NFET
+ VPORTC.DIR = PIN0_bm // BST EN
+ | PIN1_bm; // A
+
+ // enable pullups on the input pins to reduce power
+ PORTA.PIN0CTRL = PORT_PULLUPEN_bm;
+ PORTA.PIN1CTRL = PORT_PULLUPEN_bm;
+ PORTA.PIN2CTRL = PORT_PULLUPEN_bm;
+ PORTA.PIN3CTRL = PORT_PULLUPEN_bm;
+ PORTA.PIN4CTRL = PORT_PULLUPEN_bm;
+ PORTA.PIN5CTRL = PORT_PULLUPEN_bm;
+ //PORTA.PIN6CTRL = PORT_PULLUPEN_bm; // DAC
+ PORTA.PIN7CTRL = PORT_PULLUPEN_bm;
+
+ PORTB.PIN0CTRL = PORT_PULLUPEN_bm;
+ //PORTB.PIN1CTRL = PORT_PULLUPEN_bm; // R
+ //PORTB.PIN2CTRL = PORT_PULLUPEN_bm; // G
+ //PORTB.PIN3CTRL = PORT_PULLUPEN_bm; // B
+ //PORTB.PIN4CTRL = PORT_PULLUPEN_bm; // HDR
+ //PORTB.PIN5CTRL = PORT_PULLUPEN_bm; // IN- NFET
+
+ //PORTC.PIN0CTRL = PORT_PULLUPEN_bm; // EN
+ //PORTC.PIN1CTRL = PORT_PULLUPEN_bm; // A
+ PORTC.PIN2CTRL = PORT_PULLUPEN_bm
+ | PORT_ISC_BOTHEDGES_gc; // e-switch
+ PORTC.PIN3CTRL = PORT_PULLUPEN_bm;
+
+ // set up the DAC
+ // https://ww1.microchip.com/downloads/en/DeviceDoc/ATtiny1614-16-17-DataSheet-DS40002204A.pdf
+ // DAC ranges from 0V to (255 * Vref) / 256
+ // also VREF_DAC0REFSEL_0V55_gc and VREF_DAC0REFSEL_1V1_gc and VREF_DAC0REFSEL_2V5_gc
+ VREF.CTRLA |= VREF_DAC0REFSEL_2V5_gc;
+ VREF.CTRLB |= VREF_DAC0REFEN_bm;
+ DAC0.CTRLA = DAC_ENABLE_bm | DAC_OUTEN_bm;
+ DAC0.DATA = 255; // set the output voltage
+
+}
+
+
+#define LAYOUT_DEFINED
+
diff --git a/hw/thefreeman/lin16dac/cfg.h b/hw/thefreeman/lin16dac/cfg.h
new file mode 100644
index 0000000..20d2bf5
--- /dev/null
+++ b/hw/thefreeman/lin16dac/cfg.h
@@ -0,0 +1,61 @@
+// thefreeman's Linear 16 driver using DAC control
+// Copyright (C) 2021-2023 (FIXME)
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
+
+#define MODEL_NUMBER "1630"
+#include "hwdef-thefreeman-lin16dac.h"
+// ATTINY: 1616
+
+// the button lights up
+#define USE_INDICATOR_LED
+// the button is visible while main LEDs are on
+#define USE_INDICATOR_LED_WHILE_RAMPING
+// off mode: low (1)
+// lockout: blinking (3)
+#define INDICATOR_LED_DEFAULT_MODE ((3<<2) + 1)
+
+// level_calc.py ninth 2 150 7135 1 0.03 6.4 7135 1 6.3 1600
+#define RAMP_SIZE 150
+
+// 4 ramp segments:
+// - low 0.55V
+// - low 2.5V
+// - high 0.55V
+// - high 2.5V
+// PWM1: DAC Data
+// FIXME: ramp stalls with 8 duplicate levels in a row
+// (maybe use 1.1V Vref during that part of the ramp?)
+#define PWM1_LEVELS 25, 25, 33, 41, 41, 50, 58, 66, 75, 83, 92,108,117,133,150,167,192,209,234, \
+ 58, 64, 71, 80, 90, 99,110,121,134,149,163,180,198,218,241, \
+ 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 10, 11, 11, 12, 13, 14, 15, 16, 18, 19, 20, 22, 23, 25, 26, 28, 30, 32, 34, 36, 39, 41, 44, 47, 50, 53, 56, 59, 63, 67, 71, 75, 79, 84, 89, 94,100,105,112,118,124,131,139,146,154,163,172,181,191,201,212,223,234,246, \
+ 57, 60, 63, 66, 69, 73, 76, 80, 84, 88, 93, 97,102,107,112,117,123,129,135,141,147,154,161,169,176,184,193,201,210,220,229,239,250,255
+// PWM Tops: VREF selector (0.55V=16,1.1V=17, 2.5V=18, 4.3V=19, 1.5V=20)
+#define PWM_TOPS 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, \
+ 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, \
+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, \
+ 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18
+
+#define MAX_1x7135 34
+#define HDR_ENABLE_LEVEL_MIN 35 // bottom level of top half of the ramp
+#define HALFSPEED_LEVEL 255 // always run at 1/4th speed
+#define QUARTERSPEED_LEVEL 255 // because DAC doesn't use PWM
+
+#define RAMP_SMOOTH_FLOOR 1
+#define RAMP_SMOOTH_CEIL 120
+// 10, 28, 46, [65], 83, 101, 120
+#define RAMP_DISCRETE_FLOOR 10
+#define RAMP_DISCRETE_CEIL RAMP_SMOOTH_CEIL
+#define RAMP_DISCRETE_STEPS 7
+
+// stop panicking at ~30% power
+#define THERM_FASTER_LEVEL 123
+
+// enable 2 click turbo
+#define DEFAULT_2C_STYLE 1
+
+// don't blink mid-ramp
+#ifdef BLINK_AT_RAMP_MIDDLE
+#undef BLINK_AT_RAMP_MIDDLE
+#endif
+
diff --git a/hw/thefreeman/lin16dac/hwdef.c b/hw/thefreeman/lin16dac/hwdef.c
new file mode 100644
index 0000000..07c7f9e
--- /dev/null
+++ b/hw/thefreeman/lin16dac/hwdef.c
@@ -0,0 +1,92 @@
+// thefreeman linear t1616 DAC driver helper functions
+// Copyright (C) 2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
+
+#include "chan-aux.c"
+
+void set_level_zero();
+
+void set_level_main(uint8_t level);
+bool gradual_tick_main(uint8_t gt);
+
+
+Channel channels[] = {
+ { // main LEDs
+ .set_level = set_level_main,
+ .gradual_tick = gradual_tick_main
+ },
+ AUX_CHANNELS
+};
+
+
+void set_level_zero() {
+ DAC_LVL = 0; // DAC off
+ DAC_VREF = V055; // low Vref
+ HDR_ENABLE_PORT &= ~(1 << HDR_ENABLE_PIN); // HDR off
+
+ // prevent post-off flash
+ //IN_NFET_ENABLE_PORT |= (1 << IN_NFET_ENABLE_PIN);
+ //delay_4ms(IN_NFET_DELAY_TIME/4);
+ //IN_NFET_ENABLE_PORT &= ~(1 << IN_NFET_ENABLE_PIN);
+
+ // turn off opamp last
+ OPAMP_ENABLE_PORT &= ~(1 << OPAMP_ENABLE_PIN); // Opamp off
+}
+
+// single set of LEDs with 1 regulated power channel
+// and low/high HDR plus low/high Vref as different "gears"
+void set_level_main(uint8_t level) {
+ #if 0 // unsure if this helps anything
+ uint8_t noflash = 0;
+
+ // when turning on from off, try to prevent a flash
+ if ((! actual_level) && (level < HDR_ENABLE_LEVEL_MIN)) {
+ noflash = 1;
+ }
+ #endif
+
+ // Opamp on first, to give it a few extra microseconds to spin up
+ OPAMP_ENABLE_PORT |= (1 << OPAMP_ENABLE_PIN);
+
+ // pre-load ramp data so it can be assigned faster later
+ PWM_DATATYPE dac_lvl = PWM_GET(pwm1_levels, level);
+ PWM_DATATYPE dac_vref = PWM_GET(pwm_tops, level);
+
+ // enable HDR on top half of ramp
+ if (level >= (HDR_ENABLE_LEVEL_MIN-1))
+ HDR_ENABLE_PORT |= (1 << HDR_ENABLE_PIN);
+ else
+ HDR_ENABLE_PORT &= ~(1 << HDR_ENABLE_PIN);
+
+ #if 0
+ if (noflash) {
+ // wait for flash prevention to finish
+ delay_4ms(OPAMP_ON_DELAY/4);
+ }
+ #endif
+
+ // set these in successive clock cycles to avoid getting out of sync
+ // (minimizes ramp bumps when changing gears)
+ DAC_LVL = dac_lvl;
+ DAC_VREF = dac_vref;
+}
+
+bool gradual_tick_main(uint8_t gt) {
+ // if HDR and Vref "engine gear" is the same, do a small adjustment...
+ // otherwise, simply jump to the next ramp level
+ // and let set_level() handle any gear changes
+
+ PWM_DATATYPE dac_next = PWM_GET(pwm1_levels, gt);
+ PWM_DATATYPE vref_next = PWM_GET(pwm_tops, gt);
+
+ // different gear = full adjustment
+ if (vref_next != DAC_VREF) return true; // let parent set_level() for us
+
+ // same gear = small adjustment
+ GRADUAL_ADJUST_SIMPLE(dac_next, DAC_LVL);
+ if (dac_next == DAC_LVL) return true; // done
+
+ return false; // not done yet
+}
+
diff --git a/hw/thefreeman/lin16dac/hwdef.h b/hw/thefreeman/lin16dac/hwdef.h
new file mode 100644
index 0000000..c0d0638
--- /dev/null
+++ b/hw/thefreeman/lin16dac/hwdef.h
@@ -0,0 +1,137 @@
+// thefreeman's Linear 16 driver using DAC control
+// Copyright (C) 2021-2023 thefreeman, Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
+
+/*
+ * PA6 - DAC for LED brightness control
+ * PA7 - Op-amp enable pin
+ * PB5 - Aux LED
+ * PB4 - Switch pin, internal pullup
+ * PB3 - HDR control, set High to enable the high power channel, set Low for low power
+ * Read voltage from VCC pin, has PFET so no drop
+ */
+
+#define ATTINY 1616
+#include <avr/io.h>
+
+#define HWDEF_C_FILE hwdef-thefreeman-lin16dac.c
+
+// allow using aux LEDs as extra channel modes
+#include "chan-aux.h"
+
+// channel modes:
+// * 0. main LEDs
+// * 1+. aux RGB
+#define NUM_CHANNEL_MODES 2
+enum CHANNEL_MODES {
+ CM_MAIN = 0,
+ CM_AUX
+};
+
+#define DEFAULT_CHANNEL_MODE CM_MAIN
+
+// right-most bit first, modes are in fedcba9876543210 order
+#define CHANNEL_MODES_ENABLED 0b0000000000000001
+
+
+#define PWM_CHANNELS 1 // old, remove this
+
+#define PWM_BITS 8 // 8-bit DAC
+#define PWM_GET PWM_GET8
+#define PWM_DATATYPE uint8_t
+#define PWM_DATATYPE2 uint16_t // only needs 32-bit if ramp values go over 255
+#define PWM1_DATATYPE uint8_t // main LED ramp
+
+// main LED outputs
+#define DAC_LVL DAC0.DATA // 0 to 255, for 0V to Vref
+#define DAC_VREF VREF.CTRLA // 0.55V or 2.5V
+#define PWM_TOP_INIT 255 // highest value used in top half of ramp (unused?)
+// Vref values
+#define V055 16
+#define V11 17
+#define V25 18
+#define V43 19
+#define V15 20
+
+// Opamp enable
+// For turning on and off the op-amp
+#define OPAMP_ENABLE_PIN PIN7_bp
+#define OPAMP_ENABLE_PORT PORTA_OUT
+// how many ms to delay turning on the lights after enabling the channel
+// (FIXME: 80 is long enough it's likely to cause bugs elsewhere,
+// as events stack up unhandled for 5 consecutive WDT ticks)
+#define OPAMP_ON_DELAY 80
+
+// HDR
+// turns on HDR FET for the high current range
+#define HDR_ENABLE_PIN PIN3_bp
+#define HDR_ENABLE_PORT PORTB_OUT
+
+// e-switch
+#define SWITCH_PIN PIN4_bp
+#define SWITCH_PORT VPORTB.IN
+#define SWITCH_ISC_REG PORTB.PIN2CTRL
+#define SWITCH_VECT PORTB_PORT_vect
+#define SWITCH_INTFLG VPORTB.INTFLAGS
+
+// average drop across diode on this hardware
+#ifndef VOLTAGE_FUDGE_FACTOR
+#define VOLTAGE_FUDGE_FACTOR 0 // using a PFET so no appreciable drop
+#endif
+
+// lighted button
+#define AUXLED_PIN PIN5_bp
+#define AUXLED_PORT PORTB
+
+
+inline void hwdef_setup() {
+
+ // set up the system clock to run at 10 MHz instead of the default 3.33 MHz
+ // (it'll get underclocked to 2.5 MHz later)
+ // TODO: maybe run even slower?
+ _PROTECTED_WRITE( CLKCTRL.MCLKCTRLB,
+ CLKCTRL_PDIV_2X_gc | CLKCTRL_PEN_bm );
+
+ VPORTA.DIR = PIN6_bm // DAC
+ | PIN7_bm; // Opamp
+ VPORTB.DIR = PIN3_bm; // HDR
+ //VPORTC.DIR = 0b00000000;
+
+ // enable pullups on the input pins to reduce power
+ PORTA.PIN0CTRL = PORT_PULLUPEN_bm;
+ PORTA.PIN1CTRL = PORT_PULLUPEN_bm;
+ PORTA.PIN2CTRL = PORT_PULLUPEN_bm;
+ PORTA.PIN3CTRL = PORT_PULLUPEN_bm;
+ PORTA.PIN4CTRL = PORT_PULLUPEN_bm;
+ PORTA.PIN5CTRL = PORT_PULLUPEN_bm;
+ //PORTA.PIN6CTRL = PORT_PULLUPEN_bm; // DAC ouput
+ //PORTA.PIN7CTRL = PORT_PULLUPEN_bm; // Op-amp enable pin
+
+ PORTB.PIN0CTRL = PORT_PULLUPEN_bm;
+ PORTB.PIN1CTRL = PORT_PULLUPEN_bm;
+ PORTB.PIN2CTRL = PORT_PULLUPEN_bm;
+ //PORTB.PIN3CTRL = PORT_PULLUPEN_bm; // HDR channel selection
+ PORTB.PIN4CTRL = PORT_PULLUPEN_bm
+ | PORT_ISC_BOTHEDGES_gc; // e-switch
+ //PORTB.PIN5CTRL = PORT_PULLUPEN_bm; // Aux LED
+
+ PORTC.PIN0CTRL = PORT_PULLUPEN_bm;
+ PORTC.PIN1CTRL = PORT_PULLUPEN_bm;
+ PORTC.PIN2CTRL = PORT_PULLUPEN_bm;
+ PORTC.PIN3CTRL = PORT_PULLUPEN_bm;
+
+ // set up the DAC
+ // https://ww1.microchip.com/downloads/en/DeviceDoc/ATtiny1614-16-17-DataSheet-DS40002204A.pdf
+ // DAC ranges from 0V to (255 * Vref) / 256
+ // also VREF_DAC0REFSEL_0V55_gc and VREF_DAC0REFSEL_1V1_gc and VREF_DAC0REFSEL_2V5_gc
+ VREF.CTRLA |= VREF_DAC0REFSEL_2V5_gc;
+ VREF.CTRLB |= VREF_DAC0REFEN_bm;
+ DAC0.CTRLA = DAC_ENABLE_bm | DAC_OUTEN_bm;
+ DAC0.DATA = 255; // set the output voltage
+
+}
+
+
+#define LAYOUT_DEFINED
+
generated by cgit v1.2.3 (git 2.25.1) at 2026-03-28 14:22:28 +0000