QEC_DATA Struct Reference

The data necessary for an encoder. More...

Data Fields
volatile int	current_pos
	the absolute position of the encoder.
int	delta_pos
	The total change in position.
int	delta_time
	The total change in time.
int	index
	The current index of both the time and position buffers.
int	length
	The length of both the time and positino buffers.
int *	pos_buf
	The buffer of saved positions.
volatile int	prev_chA
	The previous state of channel A.
volatile int	prev_chB
	The previous state of channel B.
int	prev_pos
	The previous position.
QEC_RESOLUTION	resolution
	The resolution of the encoder.
int *	time_buf
	The buffer of saved time intervals.
float	velocity
	The most recent calculated velocity.

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Detailed Description

The data necessary for an encoder.

Definition at line 30 of file qec.h.

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Field Documentation

volatile int QEC_DATA::current_pos

the absolute position of the encoder.

Definition at line 31 of file qec.h.

Referenced by qec_calc_velocity(), qec_get_abs_pos(), qec_init_data(), and qec_update().

int QEC_DATA::delta_pos

The total change in position.

Definition at line 33 of file qec.h.

Referenced by qec_calc_velocity(), and qec_get_velocity().

int QEC_DATA::delta_time

The total change in time.

Definition at line 34 of file qec.h.

Referenced by qec_calc_velocity(), and qec_get_velocity().

int QEC_DATA::index

The current index of both the time and position buffers.

Definition at line 37 of file qec.h.

Referenced by qec_calc_velocity(), and qec_init_data().

int QEC_DATA::length

The length of both the time and positino buffers.

Definition at line 38 of file qec.h.

Referenced by qec_calc_velocity(), and qec_init_data().

int* QEC_DATA::pos_buf

The buffer of saved positions.

Definition at line 35 of file qec.h.

Referenced by qec_calc_velocity(), and qec_init_data().

volatile int QEC_DATA::prev_chA

The previous state of channel A.

Definition at line 40 of file qec.h.

Referenced by qec_update().

volatile int QEC_DATA::prev_chB

The previous state of channel B.

Definition at line 41 of file qec.h.

Referenced by qec_update().

int QEC_DATA::prev_pos

The previous position.

Definition at line 32 of file qec.h.

Referenced by qec_calc_velocity().

QEC_RESOLUTION QEC_DATA::resolution

The resolution of the encoder.

Definition at line 42 of file qec.h.

Referenced by qec_init_data(), qec_isr(), qec_update(), and qec_update_velocity().

int* QEC_DATA::time_buf

The buffer of saved time intervals.

Definition at line 36 of file qec.h.

Referenced by qec_calc_velocity(), and qec_init_data().

float QEC_DATA::velocity

The most recent calculated velocity.

Definition at line 39 of file qec.h.

Referenced by qec_get_velocity().

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The documentation for this struct was generated from the following file:

• qec.h