Driver for a Generic Servo actuator. More...

Files
file	servo.c
	Driver for a generic Servo driver.

file	servo.h
	Header file for a Generic Servo driver.

Servo default settings
#define	SERVO_DEFAULT_FREQ 50
	50 Hz

#define	SERVO_MAX_DEGREES 180

#define	SERVO_MIN_VAL 9600 /*> roughly equals to 3% duty cycle /

#define	SERVO_MAX_VAL 38400 /*> roughly equals to 12% duty cycle /

Servo general purpose timers mapping
#define	SERVO_CHANNEL_1 0x001
	GPT0-B.

#define	SERVO_CHANNEL_2 0x100
	GPT1-A.

#define	SERVO_CHANNEL_3 0x101
	GPT1-B.

#define	SERVO_CHANNEL_4 0x200
	GPT2-A.

#define	SERVO_CHANNEL_5 0x201
	GPT2-B.

#define	SERVO_CHANNEL_6 0x300
	GPT3-A.

#define	SERVO_CHANNEL_7 0x301
	GPT3-B.

Servo public funtions
int	servo_position (uint16_t gptab, uint8_t port, uint8_t pin, uint16_t pos)
	Configures and positions a servo in a given position (by degrees) The servo will lock its position as long as it is not stopped. More...

int	servo_stop (uint16_t gptab, uint8_t port, uint8_t pin)
	Fully stop a servo and reconfigures back the pin/port as GPIO. More...

Detailed Description

Driver for a Generic Servo actuator.

Function Documentation

Configures and positions a servo in a given position (by degrees) The servo will lock its position as long as it is not stopped.

Parameters

gptab	Servo channel (PWM GPT from 1-7)
port	Port number to use as PWM
pin	Pin number to use as PWM
pos	Position to map the servo to (0-360º, integer)

Definition at line 55 of file servo.c.

Fully stop a servo and reconfigures back the pin/port as GPIO.

Parameters

Definition at line 105 of file servo.c.