~toykeeper/flashlight-firmware/lume1 : revision 488

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#ifndef HWDEF_LUME1_FW3X_REVB_H

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#define HWDEF_LUME1_FW3X_REVB_H

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/* lume1 Driver Rev B for FW3x driver layout (attiny1634)

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* www.loneoceans.com/labs/ for more information

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*

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* Pin / Name / Function in Lume1 Rev B

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* 1 PA6 Regulated PWM (PWM1B)

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* 2 PA5 R red aux LED (PWM0B)

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* 3 PA4 G green aux LED

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* 4 PA3 B blue aux LED

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* 5 PA2 e-switch (PCINT2)

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* 6 PA1 Jumper 1

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* 7 PA0 Jumper 2

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* 8 GND GND

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* 9 VCC VCC

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* 10 PC5 Jumper 3

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* 11 PC4 Jumper 4

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* 12 PC3 RESET

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* 13 PC2 External Thermal Sensor (ADC11)

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* 14 PC1 SCK

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* 15 PC0 N/C

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* 16 PB3 FET PWM (PWM1A)

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* 17 PB2 MISO

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* 18 PB1 MOSI

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* 19 PB0 ADC5 Voltage Battery Sense (2:1 divider)

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* 20 PA7 BB_Enable

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* ADC12 internal thermal sensor (not used for lume1)

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*

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* Main LED power uses one pin as a global Buck Boost Enable, and

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* one pin to control the power level via PWM. Another pin is used

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* for FET control.

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*/

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#ifdef ATTINY

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#undef ATTINY

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#endif

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#define ATTINY 1634

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#include <avr/io.h>

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#define PWM_CHANNELS 2

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// Added for Lume1 Buck Boost Driver

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#define PWM_BITS 10 // 0 to 1023 at 3.9 kHz, not 0 to 255 at 15.6 kHz

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#define PWM_TOP 1023

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#define SWITCH_PIN PA2 // pin 5

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#define SWITCH_PCINT PCINT2 // pin 5 pin change interrupt

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#define SWITCH_PCIE PCIE0 // PCIE0 is for PCINT[7:0]

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#define SWITCH_PCMSK PCMSK0 // PCMSK0 is for PCINT[7:0]

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#define SWITCH_PORT PINA // PINA or PINB or PINC

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#define PWM1_PIN PA6 // pin 1, Buck Boost CTRL pin or 7135-eqv PWM

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#define PWM1_LVL OCR1B // OCR1A is the output compare register for PA6

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#define PWM2_PIN PB3 // pin 16, FET PWM Pin, but only used as on (1023) or off (0)

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#define PWM2_LVL OCR1A // OCR1A is the output compare register for PB3

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// Added for Lume1 Buck Boost Driver

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#define LED_ENABLE_PIN PA7 // pin 20, BuckBoost Enable

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#define LED_ENABLE_PORT PORTA // control port for PA7

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/* // For Jumpers X1 to X4, no SW support yet

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#define JUMPER1_PIN PA1

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#define JUMPER2_PIN PA0

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#define JUMPER3_PIN PC5

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#define JUMPER4_PIN PC4

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*/

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/*

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// average drop across diode on this hardware

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// not applicable for LUME1 driver

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#ifndef VOLTAGE_FUDGE_FACTOR

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#define VOLTAGE_FUDGE_FACTOR 4 // add 0.20V (measured 0.22V)

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#endif

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*/

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#define USE_VOLTAGE_DIVIDER // use a dedicated pin, not VCC, because VCC input is flattened

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#define VOLTAGE_PIN PB0 // Pin 19 PB0 ADC5

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// pin to ADC mappings are in DS table 19-4

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#define VOLTAGE_ADC ADC5D // digital input disable pin for PB1

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// DIDR0/DIDR1 mappings are in DS section 19.13.5, 19.13.6

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#define VOLTAGE_ADC_DIDR DIDR1 // DIDR channel for ADC5D

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// DS tables 19-3, 19-4

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// Bit 7 6 5 4 3 2 1 0

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// REFS1 REFS0 REFEN ADC0EN MUX3 MUX2 MUX1 MUX0

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// MUX[3:0] = 0, 1, 0, 1 for ADC5 / PB0

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// divided by ...

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// REFS[1:0] = 0, 0 for VCC as analog reference at 2.5V

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// other bits reserved

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#define ADMUX_VOLTAGE_DIVIDER 0b00000101

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#define ADC_PRSCL 0x06 // clk/64

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// Raw ADC readings at 4.4V and 2.2V

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// calibrate the voltage readout here

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// estimated / calculated values are:

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// [(Vbatt)*(R2/(R2+R1)) / 2.5V] * 1023

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// R1 = R2 = 100kR

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#ifndef ADC_44

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#define ADC_44 900

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#endif

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#ifndef ADC_22

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#define ADC_22 450

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#endif

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// Default ADMUX_THERM for Temperature is: 0b10001110 in tk-attiny.h

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// REFS[1:0] as 10 for analog reference at internal 1.1Vref

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// MUX[3:0] as 1110 for ADC'12' - temperature sensor internal

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// Modified fsm-adc.c to use different ADMUX and ADC_temperature_handler()

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// based on USE_EXTERNAL_TEMP_SENSOR

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// See line 34 and line 209

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#define USE_EXTERNAL_TEMP_SENSOR

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#define ADMUX_THERM_EXTERNAL_SENSOR 0b00001011 // VCC reference (2.5V), Channel PC2

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#define TEMP_CHANNEL 0b00001111

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// this driver allows for aux LEDs under the optic

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#define AUXLED_R_PIN PA5 // pin 2

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#define AUXLED_G_PIN PA4 // pin 3

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#define AUXLED_B_PIN PA3 // pin 4

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#define AUXLED_RGB_PORT PORTA // PORTA or PORTB or PORTC

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#define AUXLED_RGB_DDR DDRA // DDRA or DDRB or DDRC

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#define AUXLED_RGB_PUE PUEA // PUEA or PUEB or PUEC

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// with so many pins, doing this all with #ifdefs gets awkward...

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// ... so just hardcode it in each hwdef file instead

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// For lume1 driver, no SW support for Auxillary Jumpers X1 to X4 yet!

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inline void hwdef_setup() {

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// enable output ports in Data Direction Registers

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// Buck Boost Enable Pin

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// DDRA = (1 << LED_ENABLE_PIN);

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// FET PWM Pin

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DDRB = (1 << PWM2_PIN);

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// Main PWM, aux R/G/B

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DDRA = (1 << PWM1_PIN)

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| (1 << AUXLED_R_PIN)

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| (1 << AUXLED_G_PIN)

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| (1 << AUXLED_B_PIN)

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| (1 << LED_ENABLE_PIN)

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;

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//DDRB&=~(1<<VOLTAGE_PIN); // All pins are input by default

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/* // For Jumpers X1 to X4, no SW support yet

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DDRA &= (1<<JUMPER1_PIN);

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DDRA &= (1<<JUMPER2_PIN);

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DDRC &= (1<<JUMPER3_PIN);

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DDRC &= (1<<JUMPER4_PIN);

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PUEA = (1 << JUMPER1_PIN);

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PUEA = (1 << JUMPER2_PIN);

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PUEC = (1 << JUMPER3_PIN);

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PUEC = (1 << JUMPER4_PIN);

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*/

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// configure PWM for 10 bit at 3.9kHz

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// Setup PWM. F_pwm = F_clkio / 2 / N / TOP, where N = prescale factor, TOP = top of counter

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// pre-scale for timer: N = 1

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// WGM1[3:0]: 0,0,1,1: PWM, Phase Correct, 10-bit (DS table 12-5)

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// CS1[2:0]: 0,0,1: clk/1 (No prescaling) (DS table 12-6)

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// COM1A[1:0]: 1,0: PWM OC1A in the normal direction (DS table 12-4)

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// COM1B[1:0]: 1,0: PWM OC1B in the normal direction (DS table 12-4)

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TCCR1A = (1<<WGM11) | (1<<WGM10) // 10-bit (TOP=0x03FF) (DS table 12-5)

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| (1<<COM1A1) | (0<<COM1A0) // PWM 1A Clear OC1A on Compare Match

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| (1<<COM1B1) | (0<<COM1B0) // PWM 1B Clear OC1B on Compare Match

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;

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TCCR1B = (0<<CS12) | (0<<CS11) | (1<<CS10) // clk/1 (no prescaling) (DS table 12-6)

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| (0<<WGM13) | (0<<WGM12) // PWM, Phase Correct, 10-bit

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;

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// set up e-switch

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//PORTA = (1 << SWITCH_PIN); // TODO: configure PORTA / PORTB / PORTC?

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PUEA = (1 << SWITCH_PIN); // pull-up for e-switch

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SWITCH_PCMSK = (1 << SWITCH_PCINT); // enable pin change interrupt

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}

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#define LAYOUT_DEFINED

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#endif

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