blmc/blmc.h

#ifndef _BLMC_H_
#define _BLMC_H_

#include <avr/io.h>

#define PHASE_A_H	(1<<PORTB1)
#define PHASE_B_H	(1<<PORTB2)
#define PHASE_C_H	(1<<PORTB3)
#define PHASE_H_MASK	(PHASE_A_H | PHASE_B_H | PHASE_C_H)

#define PHASE_A_L	(1<<PORTD4)
#define PHASE_B_L	(1<<PORTD3)
#define PHASE_C_L	(1<<PORTD2)
#define PHASE_L_MASK	(PHASE_A_L | PHASE_B_L | PHASE_C_L)

#define SENSE_A		0
#define SENSE_B		1
#define SENSE_C		2

#define SENSE_VOLTAGE	3
#define SENSE_CURRENT	6

#define FLAG_RUN_MASK			0x00F
#define FLAG_PWM_SPINUP			0x001
#define FLAG_PWM_NORMAL			0x002
#define FLAG_COM_SPINUP			0x004
#define FLAG_COM_NORMAL			0x008

#define FLAG_SOFTERR_MASK		0x0F0
#define FLAG_CURRENTLIMIT		0x010
#define FLAG_I2CTIMEOUT			0x020

#define FLAG_HARDERR_MASK		0xF00
#define FLAG_UNDERVOLTAGE		0x100
#define FLAG_OVERCURRENT		0x200
#define FLAG_SELFTESTFAILED		0x400
#define FLAG_INVALIDEEPROM		0x800

struct blmc_ {
	uint16_t flags;

	uint8_t pwm;		// pwm setpoint
	uint8_t pwm_limit;	// increased by current-limit

	uint16_t rpm;
	uint16_t rpm_tmp;
	uint16_t rpm_tmp_old;

	uint16_t current;
	uint16_t voltage;
};

void trigger_adc(uint8_t channel);
void setpwm(uint8_t pwm);
void spinup(void);

#endif