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Diffstat (limited to 'hwdef-blf-lt1-t1616.h')
| -rw-r--r-- | hwdef-blf-lt1-t1616.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/hwdef-blf-lt1-t1616.h b/hwdef-blf-lt1-t1616.h new file mode 100644 index 0000000..4a411d4 --- /dev/null +++ b/hwdef-blf-lt1-t1616.h @@ -0,0 +1,141 @@ +// BLF LT1 driver layout using the Attiny1616 +// Copyright (C) 2021-2023 (gchart), Selene ToyKeeper +// SPDX-License-Identifier: GPL-3.0-or-later +#pragma once + +/* + * Driver pinout: + * eSwitch: PA5 + * Aux LED: PB5 + * PWM cool: PB0 (TCA0 WO0) + * PWM warm: PB1 (TCA0 WO1) + * Voltage: VCC + */ + +#define ATTINY 1616 +#include <avr/io.h> + +#define HWDEF_C_FILE hwdef-blf-lt1-t1616.c + +// allow using aux LEDs as extra channel modes +#include "chan-aux.h" + +// channel modes: +// * 0. warm only +// * 1. cool only +// * 2. both channels, tied together, max "200%" power +// * 3. both channels, manual blend, max "100%" power +// * 4. both channels, auto blend, reversible +#define NUM_CHANNEL_MODES 6 +enum channel_modes_e { + CM_CH1 = 0, + CM_CH2, + CM_BOTH, + CM_BLEND, + CM_AUTO, + CM_AUX +}; + +// right-most bit first, modes are in fedcba9876543210 order +#define CHANNEL_MODES_ENABLED 0b00011000 +#define USE_CHANNEL_MODE_ARGS +// _, _, _, 128=middle CCT, 0=warm-to-cool +#define CHANNEL_MODE_ARGS 0,0,0,128,0,0 + +// can use some of the common handlers +#define USE_CALC_2CH_BLEND + + +#define PWM_CHANNELS 1 // old, remove this + +#define PWM_BITS 8 // + +#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 // + +// PWM parameters of both channels are tied together because they share a counter +#define PWM_TOP_INIT 255 // highest value used in the top half of the ramp +#define PWM_TOP TCA0.SINGLE.PERBUF // holds the TOP value for for variable-resolution PWM +#define PWM_CNT TCA0.SINGLE.CNT // for resetting phase after each TOP adjustment +// TODO: implement DSM +#define DSM_TOP (255<<7) // 15-bit resolution leaves 1 bit for carry + +// warm LEDs +#define CH1_PIN PB1 +#define CH1_PWM TCA0.SINGLE.CMP1 // CMP1 is the output compare register for PB1 + +// cold LEDs +#define CH2_PIN PB0 +#define CH2_PWM TCA0.SINGLE.CMP0 // CMP0 is the output compare register for PB0 + +// lighted button +#define AUXLED_PIN PIN5_bp +#define AUXLED_PORT PORTB + +// e-switch +#define SWITCH_PIN PIN5_bp +#define SWITCH_PORT VPORTA.IN +#define SWITCH_ISC_REG PORTA.PIN2CTRL +#define SWITCH_VECT PORTA_PORT_vect +#define SWITCH_INTFLG VPORTA.INTFLAGS + +// average drop across diode on this hardware +#ifndef VOLTAGE_FUDGE_FACTOR +#define VOLTAGE_FUDGE_FACTOR 7 // add 0.35V +#endif + + +inline void hwdef_setup() { + + // set up the system clock to run at 5 MHz instead of the default 3.33 MHz + _PROTECTED_WRITE( CLKCTRL.MCLKCTRLB, CLKCTRL_PDIV_4X_gc | CLKCTRL_PEN_bm ); + + //VPORTA.DIR = ...; + // Outputs: + VPORTB.DIR = PIN0_bm // cool white + | PIN1_bm // warm white + | PIN5_bm; // aux LED + //VPORTC.DIR = ...; + + // enable pullups on the unused 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 | PORT_ISC_BOTHEDGES_gc; // eSwitch + PORTA.PIN6CTRL = PORT_PULLUPEN_bm; + PORTA.PIN7CTRL = PORT_PULLUPEN_bm; + + //PORTB.PIN0CTRL = PORT_PULLUPEN_bm; // cold tint channel + //PORTB.PIN1CTRL = PORT_PULLUPEN_bm; // warm tint channel + PORTB.PIN2CTRL = PORT_PULLUPEN_bm; + PORTB.PIN3CTRL = PORT_PULLUPEN_bm; + PORTB.PIN4CTRL = PORT_PULLUPEN_bm; + //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 PWM + // https://ww1.microchip.com/downloads/en/DeviceDoc/ATtiny1614-16-17-DataSheet-DS40002204A.pdf + // PB0 is TCA0:WO0, use TCA_SINGLE_CMP0EN_bm + // PB1 is TCA0:WO1, use TCA_SINGLE_CMP1EN_bm + // For Fast (Single Slope) PWM use TCA_SINGLE_WGMODE_SINGLESLOPE_gc + // For Phase Correct (Dual Slope) PWM use TCA_SINGLE_WGMODE_DSBOTTOM_gc + // TODO: add references to MCU documentation + TCA0.SINGLE.CTRLB = TCA_SINGLE_CMP0EN_bm + | TCA_SINGLE_CMP1EN_bm + | TCA_SINGLE_WGMODE_SINGLESLOPE_gc; + PWM_TOP = PWM_TOP_INIT; + TCA0.SINGLE.CTRLA = TCA_SINGLE_CLKSEL_DIV1_gc + | TCA_SINGLE_ENABLE_bm; +} + + +#define LAYOUT_DEFINED + |