stepper.bas File Reference

Example: control a stepper motor. More...

#include "BBB/pruio.bi"
#include "BBB/pruio_pins.bi"

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Macros
#define	P1   /* P8_08 */
	The first pin of the stepper.
#define	P2   /* P8_10 */
	The second pin of the stepper.
#define	P3   /* P8_12 */
	The third pin of the stepper.
#define	P4   /* P8_14 */
	The fourth pin of the stepper.

Functions
SUB	move (BYVAL_AS_PruIo_PTR Io, BYVAL_AS_BYTE Rot=1)
	make the motor move the next step. More...
int	main ()

Variables
VAR	io = NEW PruIo
	Create a PruIo structure, wakeup subsystems.
VAR	w = 128
	The wait (delay) value.
VAR	d = 0
	The direction value.
VAR	x = 16
	The cursor column for output.
VAR	y = CSRLIN() - 1
	The cursor line for output.
VAR	k = ASC(INKEY())
	The key code.

Detailed Description

Example: control a stepper motor.

This file contains an example on how to use libpruio to control a 4-wire stepper motor:

• configure 4 pins as output
• receive user action in loop
• inform user about the current state
• change motor direction
• change motor speed
• stop holded or in power off mode
• move a single step (in holded mode)
• quit

Find a functional description in section stepper.

Licence: GPLv3, Copyright 2014-2023 by Thomas{ doT ]Freiherr[ At ]gmx[ DoT }net

Compile by: fbc -w all stepper.bas

Since

0.0

This file contains an example on how to use libpruio to control a 4-wire stepper motor:

• configure 4 pins as output
• receive user action in loop
• inform user about the current state
• change motor direction
• change motor speed
• stop holded or in power off mode
• move a single step (in holded mode)
• quit

Find a functional description in section stepper. In contrast to example stepper, this code handles the pins simultaneously.

Licence: GPLv3, Copyright 2014-2023 by Thomas{ doT ]Freiherr[ At ]gmx[ DoT }net

Compile by: fbc -w all stepper2.bas

Since

0.0

Definition in file stepper.bas.

Function Documentation

main()

int main

(

)

The main function.

Definition at line 151 of file stepper.bas.

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move()

SUB move	(	BYVAL_AS_PruIo_PTR	Io,
		BYVAL_AS_BYTE	Rot = 1
	)

make the motor move the next step.

Parameters

Io	pointer to PruIo structure
Rot	direction of rotation (1 or -1)

This function sets 4 output pins for a stepper motor driver. It remembers the last step as static variable (starting at 0 = zero) and adds the new position to it. So the Rot parameter should either be 1 or -1 to make the motor move one step in any direction.

Definition at line 50 of file stepper.bas.