diff options
Diffstat (limited to 'hwdef-thefreeman-lin16dac.h')
| -rw-r--r-- | hwdef-thefreeman-lin16dac.h | 111 |
1 files changed, 71 insertions, 40 deletions
diff --git a/hwdef-thefreeman-lin16dac.h b/hwdef-thefreeman-lin16dac.h index 36e3929..c0d0638 100644 --- a/hwdef-thefreeman-lin16dac.h +++ b/hwdef-thefreeman-lin16dac.h @@ -1,5 +1,5 @@ // thefreeman's Linear 16 driver using DAC control -// Copyright (C) 2021-2023 (FIXME) +// Copyright (C) 2021-2023 thefreeman, Selene ToyKeeper // SPDX-License-Identifier: GPL-3.0-or-later #pragma once @@ -12,41 +12,68 @@ * Read voltage from VCC pin, has PFET so no drop */ -#define LAYOUT_DEFINED - -#ifdef ATTINY -#undef ATTINY -#endif #define ATTINY 1616 #include <avr/io.h> -#define PWM_CHANNELS 1 -#define USE_DYN_PWM // dynamic frequency and speed +#define HWDEF_C_FILE hwdef-thefreeman-lin16dac.c -#ifndef SWITCH_PIN -#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 -#endif +// 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 PWM1_LVL DAC0.DATA // use this for DAC voltage output -// PWM parameters of both channels are tied together because they share a counter -#define PWM1_TOP VREF.CTRLA // holds the TOP value for for variable-resolution PWM +#define PWM_CHANNELS 1 // old, remove this -// For enabling / disabling the HDR high-range channel -#define LED_ENABLE_PIN PIN3_bp -#define LED_ENABLE_PORT PORTB_OUT -#define LED_ENABLE_PIN_LEVEL_MIN 35 -#define LED_ENABLE_PIN_LEVEL_MAX 150 +#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 LED2_ENABLE_PIN PIN7_bp -#define LED2_ENABLE_PORT PORTA_OUT -#define LED2_ON_DELAY 80 // how many ms to delay turning on the lights after enabling the channel +#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 @@ -54,22 +81,21 @@ #endif // lighted button -#ifndef AUXLED_PIN -#define AUXLED_PIN PIN5_bp -#define AUXLED_PORT PORTB -#endif +#define AUXLED_PIN PIN5_bp +#define AUXLED_PORT PORTB -// with so many pins, doing this all with #ifdefs gets awkward... -// ... so just hardcode it in each hwdef file instead inline void hwdef_setup() { // set up the system clock to run at 10 MHz instead of the default 3.33 MHz - // TODO: for this DAC controlled-light, try to decrease the clock speed or use the ULP - _PROTECTED_WRITE( CLKCTRL.MCLKCTRLB, CLKCTRL_PDIV_2X_gc | CLKCTRL_PEN_bm ); - - VPORTA.DIR = PIN6_bm | PIN7_bm; - VPORTB.DIR = PIN3_bm; + // (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 @@ -84,9 +110,10 @@ inline void hwdef_setup() { PORTB.PIN0CTRL = PORT_PULLUPEN_bm; PORTB.PIN1CTRL = PORT_PULLUPEN_bm; - PORTB.PIN2CTRL = 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; // switch + PORTB.PIN4CTRL = PORT_PULLUPEN_bm + | PORT_ISC_BOTHEDGES_gc; // e-switch //PORTB.PIN5CTRL = PORT_PULLUPEN_bm; // Aux LED PORTC.PIN0CTRL = PORT_PULLUPEN_bm; @@ -97,10 +124,14 @@ inline void hwdef_setup() { // 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 - VREF.CTRLA |= VREF_DAC0REFSEL_2V5_gc; // also VREF_DAC0REFSEL_0V55_gc and VREF_DAC0REFSEL_1V1_gc and VREF_DAC0REFSEL_2V5_gc + // 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 + |