Tedd OKANO / Mbed 2 deprecated unipolar_stepper_motor_operation_sample

Very simple operation samples of unipolar stepper motor. This code has been made to help beginners to learn the stepper motor. The history of the code shows the how to generate pulses from very basic level.

Dependencies:   mbed

main.cpp@9:e568dea69ab5, 2014-01-11 (annotated)

Committer:
okano
Date:
Sat Jan 11 02:11:56 2014 +0000
Revision:
9:e568dea69ab5
Parent:
8:6f3f8e5da87b
Child:
10:f00d0b8775d4
version 6 : 2-phase drive

Who changed what in which revision?

UserRevisionLine numberNew contents of line
okano 4:3cb4e78e0846 1 // stepper motor operation sample (learn it step by step).
okano 0:6e775c640f78 2 // showing how to control a unipolar stepper motor by mbed digital output ports.
okano 4:3cb4e78e0846 3 //
okano 9:e568dea69ab5 4 // version 6 : 2-phase drive
okano 0:6e775c640f78 5
okano 0:6e775c640f78 6 #include "mbed.h"
okano 0:6e775c640f78 7
okano 6:11b35048d384 8 BusOut motor_out( p26, p25, p24, p23 );
okano 0:6e775c640f78 9
okano 1:e49f906a4dbd 10 #define INTERVAL 0.01
okano 1:e49f906a4dbd 11
okano 9:e568dea69ab5 12 // 1-phase drive pattern
okano 9:e568dea69ab5 13 // char pattern[] = { 1, 2, 4, 8 };
okano 9:e568dea69ab5 14
okano 9:e568dea69ab5 15 // 2-phase drive pattern
okano 9:e568dea69ab5 16 char pattern[] = { 0x3, 0x6, 0xC, 0x9 };
okano 7:032ae28fae2e 17
okano 4:3cb4e78e0846 18 int main()
okano 4:3cb4e78e0846 19 {
okano 0:6e775c640f78 20 while(1) {
okano 4:3cb4e78e0846 21
okano 4:3cb4e78e0846 22 // pulse orser : "p26 -> p25 -> p24 -> p23" for 4*90(=360) steps
okano 4:3cb4e78e0846 23
okano 8:6f3f8e5da87b 24 for ( int i = 0; i < 360; i++ ) {
okano 8:6f3f8e5da87b 25 motor_out = pattern[ i % 4 ];
okano 4:3cb4e78e0846 26 wait( INTERVAL );
okano 4:3cb4e78e0846 27 }
okano 4:3cb4e78e0846 28
okano 4:3cb4e78e0846 29 // pulse orser : "p23 -> p24 -> p25 -> p26" for 4*90(=360) steps
okano 4:3cb4e78e0846 30
okano 8:6f3f8e5da87b 31 for ( int i = 0; i < 360; i++ ) {
okano 8:6f3f8e5da87b 32 motor_out = pattern[ 3 - (i % 4) ];
okano 4:3cb4e78e0846 33 wait( INTERVAL );
okano 4:3cb4e78e0846 34 }
okano 0:6e775c640f78 35 }
okano 0:6e775c640f78 36 }