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#ifndef HWDEF_SOFIRN_SP10_H
#define HWDEF_SOFIRN_SP10_H
/* Sofirn SP10 Pro pinout
ATTINY1616 Mapping:
PB5 : PWM small channel (TCA0 - WO2 Alternate MUX)
PB3 : eSwitch
PB0 : PWM big channel (TCA0 - WO0)
PB4 : Voltage divider (ADC0 - AIN9)
PA1 : Boost Enable
*/
#define LAYOUT_DEFINED
#ifdef ATTINY
#undef ATTINY
#endif
#define ATTINY 1616
#include <avr/io.h>
#ifndef SWITCH_PIN
#define SWITCH_PIN 3
#define SWITCH_PORT VPORTB.IN
#define SWITCH_ISC_REG PORTB.PIN3CTRL
#define SWITCH_VECT PORTB_PORT_vect
#define SWITCH_INTFLG VPORTB.INTFLAGS
#endif
#define PWM_CHANNELS 2
#define PWM_BITS 16 // data type needs 16 bits, not 8
#define PWM_TOP 255 // highest value used in top half of ramp
#define USE_DYN_PWM // dynamic frequency and speed
// Small channel
#ifndef PWM1_PIN
#define PWM1_PIN PB5
#define PWM1_LVL TCA0.SINGLE.CMP2BUF // PB5 is Alternate MUX for TCA Compare 2
#endif
// Big channel
#ifndef PWM2_PIN
#define PWM2_PIN PB0
#define PWM2_LVL TCA0.SINGLE.CMP0BUF // PB0 is TCA Compare 0
#endif
// PWM parameters of both channels are tied together because they share a counter
#define PWM1_TOP TCA0.SINGLE.PERBUF // holds the TOP value for for variable-resolution PWM
// not necessary when double-buffered "BUF" registers are used
//#define PWM1_CNT TCA0.SINGLE.CNT // for resetting phase after each TOP adjustment
#define LED_ENABLE_PIN PIN1_bp
#define LED_ENABLE_PORT PORTA_OUT
#define USE_VOLTAGE_DIVIDER // use a dedicated pin, not VCC, because VCC input is flattened
#define DUAL_VOLTAGE_FLOOR 20 // 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_AIN9_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 300,000 and 100,000
#ifndef ADC_44
#define ADC_44 1023 // raw value at 4.40V
#endif
#ifndef ADC_22
#define ADC_22 512 // raw value at 2.20V
#endif
// 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
_PROTECTED_WRITE( CLKCTRL.MCLKCTRLB, CLKCTRL_PDIV_2X_gc | CLKCTRL_PEN_bm );
VPORTA.DIR = PIN1_bm; // Boost enable pin
VPORTB.DIR = PIN0_bm | PIN5_bm; // PWM pins as output
//VPORTC.DIR = ...;
// enable pullups on the input pins to reduce power
PORTA.PIN0CTRL = PORT_PULLUPEN_bm;
//PORTA.PIN1CTRL = PORT_PULLUPEN_bm; // Boost enable pin
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;
PORTA.PIN7CTRL = PORT_PULLUPEN_bm;
//PORTB.PIN0CTRL = PORT_PULLUPEN_bm; // Big PWM channel
PORTB.PIN1CTRL = PORT_PULLUPEN_bm;
PORTB.PIN2CTRL = PORT_PULLUPEN_bm;
PORTB.PIN3CTRL = PORT_PULLUPEN_bm | PORT_ISC_BOTHEDGES_gc; // Switch
//PORTB.PIN4CTRL = PORT_PULLUPEN_bm; // Voltage divider
//PORTB.PIN5CTRL = PORT_PULLUPEN_bm; // Small PWM channel
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
// PB2 is TCA0:WO2, use TCA_SINGLE_CMP2EN_bm
// For Fast (Single Slope) PWM use TCA_SINGLE_WGMODE_SINGLESLOPE_gc
// For Phase Correct (Dual Slope) PWM use TCA_SINGLE_WGMODE_DSBOTTOM_gc
// See the manual for other pins, clocks, configs, portmux, etc
PORTMUX.CTRLC = PORTMUX_TCA02_ALTERNATE_gc; // Use alternate pin for TCA0:WO2
TCA0.SINGLE.CTRLB = TCA_SINGLE_CMP0EN_bm | TCA_SINGLE_CMP2EN_bm | TCA_SINGLE_WGMODE_DSBOTTOM_gc;
PWM1_TOP = PWM_TOP;
TCA0.SINGLE.CTRLA = TCA_SINGLE_CLKSEL_DIV1_gc | TCA_SINGLE_ENABLE_bm;
}
#endif
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