blmc/blmc.h

#ifndef _BLMC_H_
#define _BLMC_H_

#include <avr/io.h>

#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_CURRENT_LIMIT		0x010
#define FLAG_I2C_TIMEOUT		0x020

#define FLAG_HARDERR_MASK		0xF00
#define FLAG_UNDERVOLTAGE		0x100
#define FLAG_OVERCURRENT		0x200
#define FLAG_SELFTEST_FAILED		0x400
#define FLAG_INVALID_EEPROM		0x800

#define FLAG_I2C_ACTIVE			0x1000

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