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Diffstat (limited to 'hwdef-Sofirn_SP10-Pro.h')
| -rw-r--r-- | hwdef-Sofirn_SP10-Pro.h | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/hwdef-Sofirn_SP10-Pro.h b/hwdef-Sofirn_SP10-Pro.h new file mode 100644 index 0000000..4691d04 --- /dev/null +++ b/hwdef-Sofirn_SP10-Pro.h @@ -0,0 +1,122 @@ +#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.CMP2 // PB5 is Alternate MUX for TCA Compare 2 +#endif + +// Big channel +#ifndef PWM2_PIN +#define PWM2_PIN PB0 +#define PWM2_LVL TCA0.SINGLE.CMP0 // PB0 is TCA Compare 0 +#endif + +// PWM parameters of both channels are tied together because they share a counter +#define PWM1_TOP TCA0.SINGLE.PER // holds the TOP value for for variable-resolution PWM + +#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 8 // the lower voltage range's danger zone 0.8 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 |