accelerometer MMA7455L in I2c mode

olowo · Joined: 01 Sep 2010 Posts: 1 Location: Nigeria

Please, I'm supposed to work with 10 accelerometers MMA7455L in standard I2C mode as a slave to a master PIC 18f2221. This accelerometer is a new one and it requires some configurations. Since it is not a PIC MCU, I don't know how to go about it. Though I have studied the data sheet, I still need to understand practically how to configure the accelerometer. I really need help! Rolling Eyes

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

This code looks like it will work, based on a quick reading of the
MMA7455L data sheet:
http://www.ccsinfo.com/forum/viewtopic.php?t=38728
This code sets it up to be in "2g" sensitivity mode, and it only looks at
the Z-axis, so presumably you would test it by moving the MMA7455L
chip up and down rapidly.

Also, he uses a 'goto' statement and a 'loop' label. I would have used
a while(1) loop instead. Let's get into C programming and not revert
to ASM style.