ST / Mbed OS HelloWorld_IHM01A1_mbedOS

Simple test application for the STMicroelectronics X-NUCLEO-IHM01A1 Stepper Motor Control Expansion Board, built against mbed OS.

Dependencies:   X_NUCLEO_IHM01A1

Fork of HelloWorld_IHM01A1 by ST

This application provides a simple example of usage of the X-NUCLEO-IHM01A1 Stepper Motor Control Expansion Board. It shows how to use one stepper motor connected to the board, moving the rotor to a specific position, with a given speed value, direction of rotation, etc.

Files at this revision

API Documentation at this revision

Revision 29:a80a213c3c94, committed 2016-09-08

Comitter:
Davidroid
Date:
Thu Sep 08 12:39:58 2016 +0000
Parent:
28:e15fc9311ca3
Child:
30:afc9781f989f
Commit message:
Comment about pps added.

Changed in this revision

HelloWorld_IHM01A1.lib Show annotated file Show diff for this revision Revisions of this file
X_NUCLEO_IHM01A1.lib Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HelloWorld_IHM01A1.lib	Thu Sep 08 12:39:58 2016 +0000
@@ -0,0 +1,1 @@
+http://developer.mbed.org/teams/ST/code/HelloWorld_IHM01A1/#e15fc9311ca3

--- a/X_NUCLEO_IHM01A1.lib	Wed Aug 03 10:11:21 2016 +0000
+++ b/X_NUCLEO_IHM01A1.lib	Thu Sep 08 12:39:58 2016 +0000
@@ -1,1 +1,1 @@
-http://developer.mbed.org/teams/ST/code/X_NUCLEO_IHM01A1/#fd83fecf1ef5
+http://developer.mbed.org/teams/ST/code/X_NUCLEO_IHM01A1/#990963ed581b

--- a/main.cpp	Wed Aug 03 10:11:21 2016 +0000
+++ b/main.cpp	Thu Sep 08 12:39:58 2016 +0000
@@ -60,7 +60,9 @@
 #define DELAY_3 6000
 #define DELAY_4 8000
 
-/* Speed in step/s. */
+/* Speed in pps (Pulses Per Second).
+   In Full Step mode: 1 pps = 1 step/s).
+   In 1/N Step Mode:  N pps = 1 step/s). */
 #define SPEED_1 2400
 #define SPEED_2 1200
 
@@ -70,10 +72,10 @@
 /* Initialization parameters. */
 L6474_Init_t init =
 {
-    160,                              /* Acceleration rate in step/s2. Range: (0..+inf). */
-    160,                              /* Deceleration rate in step/s2. Range: (0..+inf). */
-    1600,                             /* Maximum speed in step/s. Range: (30..10000]. */
-    800,                              /* Minimum speed in step/s. Range: [30..10000). */
+    160,                              /* Acceleration rate in pps^2. Range: (0..+inf). */
+    160,                              /* Deceleration rate in pps^2. Range: (0..+inf). */
+    1600,                             /* Maximum speed in pps. Range: (30..10000]. */
+    800,                              /* Minimum speed in pps. Range: [30..10000). */
     250,                              /* Torque regulation current in mA. Range: 31.25mA to 4000mA. */
     L6474_OCD_TH_750mA,               /* Overcurrent threshold (OCD_TH register). */
     L6474_CONFIG_OC_SD_ENABLE,        /* Overcurrent shutwdown (OC_SD field of CONFIG register). */