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hwdef-BLF_Q8-T1616.h
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hwdef-BLF_Q8-T1616.h
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#ifndef HWDEF_BLF_Q8_T1616_H
#define HWDEF_BLF_Q8_T1616_H
/* BLF Q8 driver layout using the Attiny1616
Driver pinout:
* eSwitch: PA5
* Aux LED: PB5
* PWM FET: PB0 (TCA0 WO0)
* PWM 1x7135: PB1 (TCA0 WO1)
* Voltage: VCC
*/
#define LAYOUT_DEFINED
#ifdef ATTINY
#undef ATTINY
#endif
#define ATTINY 1616
#include <avr/io.h>
#define PWM_CHANNELS 2
#define PWM_TOP 255
#ifndef SWITCH_PIN
#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
#endif
// 7135 channel
#ifndef PWM1_PIN
#define PWM1_PIN PB1 //
#define PWM1_LVL TCA0.SINGLE.CMP1BUF // CMP1 is the output compare register for PB1
#define PWM1_TOP TCA0.SINGLE.PERBUF
#define PWM1_CNT TCA0.SINGLE.CNT
#endif
// FET channel
#ifndef PWM2_PIN
#define PWM2_PIN PB0 //
#define PWM2_LVL TCA0.SINGLE.CMP0BUF // CMP0 is the output compare register for PB0
#endif
#define PWM1_PHASE_RESET_OFF
#define PWM1_PHASE_RESET_ON
// average drop across diode on this hardware
#ifndef VOLTAGE_FUDGE_FACTOR
#define VOLTAGE_FUDGE_FACTOR 7 // add 0.35V
#endif
// lighted button
#ifndef AUXLED_PIN
#define AUXLED_PIN PIN5_bp
#define AUXLED_PORT PORTB
#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 = ...;
VPORTB.DIR = PIN0_bm | PIN1_bm | PIN5_bm; // Outputs: Aux LED and PWMs
//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; // FET channel
//PORTB.PIN1CTRL = PORT_PULLUPEN_bm; // 7135 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
// 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
TCA0.SINGLE.CTRLB = TCA_SINGLE_CMP0EN_bm | TCA_SINGLE_CMP1EN_bm | TCA_SINGLE_WGMODE_DSBOTTOM_gc;
PWM1_TOP = PWM_TOP;
TCA0.SINGLE.CTRLA = TCA_SINGLE_CLKSEL_DIV1_gc | TCA_SINGLE_ENABLE_bm;
}
#endif