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hwdef-fw3x-lume1.h
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hwdef-fw3x-lume1.h
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#ifndef HWDEF_FW3X_LUME1_H
#define HWDEF_FW3X_LUME1_H
/* lume1 Driver Rev B for FW3x driver layout (attiny1634)
* www.loneoceans.com/labs/ for more information
*
* Pin / Name / Function in Lume1 Rev B
* 1 PA6 Regulated PWM (PWM1B)
* 2 PA5 R red aux LED (PWM0B)
* 3 PA4 G green aux LED
* 4 PA3 B blue aux LED
* 5 PA2 e-switch (PCINT2)
* 6 PA1 Jumper 1
* 7 PA0 Jumper 2
* 8 GND GND
* 9 VCC VCC
* 10 PC5 Jumper 3
* 11 PC4 Jumper 4
* 12 PC3 RESET
* 13 PC2 External Thermal Sensor (ADC11)
* 14 PC1 SCK
* 15 PC0 N/C
* 16 PB3 FET PWM (PWM1A)
* 17 PB2 MISO
* 18 PB1 MOSI
* 19 PB0 ADC5 Voltage Battery Sense (2:1 divider)
* 20 PA7 BB_Enable
* ADC12 internal thermal sensor (not used for lume1)
*
* Main LED power uses one pin as a global Buck Boost Enable, and
* one pin to control the power level via PWM. Another pin is used
* for FET control.
*/
#ifdef ATTINY
#undef ATTINY
#endif
#define ATTINY 1634
#include <avr/io.h>
#define PWM_CHANNELS 2
// Added for Lume1 Buck Boost Driver
#define PWM_BITS 10 // 0 to 1023 at 3.9 kHz, not 0 to 255 at 15.6 kHz
#define PWM_TOP 1023
#define SWITCH_PIN PA2 // pin 5
#define SWITCH_PCINT PCINT2 // pin 5 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 PWM1_PIN PA6 // pin 1, Buck Boost CTRL pin or 7135-eqv PWM
#define PWM1_LVL OCR1B // OCR1A is the output compare register for PA6
#define PWM2_PIN PB3 // pin 16, FET PWM Pin, but only used as on (1023) or off (0)
#define PWM2_LVL OCR1A // OCR1A is the output compare register for PB3
// Added for Lume1 Buck Boost Driver
#define LED_ENABLE_PIN PA7 // pin 20, BuckBoost Enable
#define LED_ENABLE_PORT PORTA // control port for PA7
/* // For Jumpers X1 to X4, no SW support yet
#define JUMPER1_PIN PA1
#define JUMPER2_PIN PA0
#define JUMPER3_PIN PC5
#define JUMPER4_PIN PC4
*/
#define USE_VOLTAGE_DIVIDER // use a dedicated pin, not VCC, because VCC input is flattened
#define VOLTAGE_PIN PB0 // Pin 19 PB0 ADC5
// pin to ADC mappings are in DS table 19-4
#define VOLTAGE_ADC ADC5D // 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 ADC5D
// 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, 0, 1 for ADC5 / PB0
// divided by ...
// REFS[1:0] = 0, 0 for VCC as analog reference at 2.5V
// other bits reserved
#define ADMUX_VOLTAGE_DIVIDER 0b00000101
#define ADC_PRSCL 0x06 // clk/64
// Raw ADC readings at 4.4V and 2.2V
// calibrate the voltage readout here
// estimated / calculated values are:
// [(Vbatt)*(R2/(R2+R1)) / 2.5V] * 1023
// R1 = R2 = 100kR
#ifndef ADC_44
#define ADC_44 900
#endif
#ifndef ADC_22
#define ADC_22 450
#endif
// Default ADMUX_THERM for Temperature is: 0b10001110 in tk-attiny.h
// REFS[1:0] as 10 for analog reference at internal 1.1Vref
// MUX[3:0] as 1110 for ADC'12' - temperature sensor internal
// Modified fsm-adc.c to use different ADMUX and ADC_temperature_handler()
// based on USE_EXTERNAL_TEMP_SENSOR
// See line 34 and line 209
#define USE_EXTERNAL_TEMP_SENSOR
#define ADMUX_THERM_EXTERNAL_SENSOR 0b00001011 // VCC reference (2.5V), Channel PC2
// Used for Lume1 Driver: MCP9700 - T_Celsius = 100*(VOUT - 0.5V)
// ADC is 2.5V reference, 0 to 1023
// FIXME: due to floating point, this calculation takes 916 extra bytes
// (should use an integer equivalent instead)
#define EXTERN_TEMP_FORMULA(m) (((m)-205)/4.09)
// this driver allows for 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
// with so many pins, doing this all with #ifdefs gets awkward...
// ... so just hardcode it in each hwdef file instead
// For lume1 driver, no SW support for Auxillary Jumpers X1 to X4 yet!
inline void hwdef_setup() {
// enable output ports in Data Direction Registers
// FET PWM Pin
DDRB = (1 << PWM2_PIN);
// Main PWM, Buck Boost Enable Pin, aux R/G/B
DDRA = (1 << PWM1_PIN)
| (1 << LED_ENABLE_PIN)
| (1 << AUXLED_R_PIN)
| (1 << AUXLED_G_PIN)
| (1 << AUXLED_B_PIN)
;
//DDRB&=~(1<<VOLTAGE_PIN); // All pins are input by default
/* // For Jumpers X1 to X4, no SW support yet
DDRA &= (1<<JUMPER1_PIN);
DDRA &= (1<<JUMPER2_PIN);
DDRC &= (1<<JUMPER3_PIN);
DDRC &= (1<<JUMPER4_PIN);
PUEA = (1 << JUMPER1_PIN);
PUEA = (1 << JUMPER2_PIN);
PUEC = (1 << JUMPER3_PIN);
PUEC = (1 << JUMPER4_PIN);
*/
// configure PWM for 10 bit at 3.9kHz
// Setup PWM. F_pwm = F_clkio / 2 / N / TOP, where N = prescale factor, TOP = top of counter
// pre-scale for timer: N = 1
// WGM1[3:0]: 0,0,1,1: PWM, Phase Correct, 10-bit (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) | (1<<WGM10) // 10-bit (TOP=0x03FF) (DS table 12-5)
| (1<<COM1A1) | (0<<COM1A0) // PWM 1A Clear OC1A on Compare Match
| (1<<COM1B1) | (0<<COM1B0) // PWM 1B Clear OC1B on Compare Match
;
TCCR1B = (0<<CS12) | (0<<CS11) | (1<<CS10) // clk/1 (no prescaling) (DS table 12-6)
| (0<<WGM13) | (0<<WGM12) // PWM, Phase Correct, 10-bit
;
// set up e-switch
//PORTA = (1 << SWITCH_PIN); // TODO: configure PORTA / PORTB / PORTC?
PUEA = (1 << SWITCH_PIN); // pull-up for e-switch
SWITCH_PCMSK = (1 << SWITCH_PCINT); // enable pin change interrupt
}
#define LAYOUT_DEFINED
#endif