Components / MMA7660

Library for the MMA7660 triple axis accelerometer

Dependents:   mbed_Shield_LCD_Accelerometer mbed_Shield_Accelerometer

Fork of MMA7660 by Erik -

Files at this revision

API Documentation at this revision

Revision 3:05babde28906, committed 2014-04-02

Comitter:
sam_grove
Date:
Wed Apr 02 16:25:39 2014 +0000
Parent:
2:a8e20db7901e
Commit message:
Remove config from constructor and do when connection is tested. Bump speed up to 400k

Changed in this revision

MMA7660.cpp Show annotated file Show diff for this revision Revisions of this file 
diff -r a8e20db7901e -r 05babde28906 MMA7660.cpp
--- a/MMA7660.cpp	Wed Oct 17 16:38:05 2012 +0000
+++ b/MMA7660.cpp	Wed Apr 02 16:25:39 2014 +0000
@@ -2,17 +2,17 @@
 
 MMA7660::MMA7660(PinName sda, PinName scl, bool active) : _i2c(sda, scl)
 {
-    setActive(active);
-    samplerate = 64;
-
+    _i2c.frequency(400000);
 }
 
 //Since the MMA lacks a WHO_AM_I register, we can only check if there is a device that answers to the I2C address
 bool MMA7660::testConnection( void )
 {
-    if (_i2c.write(MMA7660_ADDRESS, NULL, 0) == 0 )
+    if (_i2c.write(MMA7660_ADDRESS, NULL, 0) == 0 ) {
+        setActive(active);
+        samplerate = 64;
         return true;
-    else
+    } else
         return false;
 }