In SX Microcontrollers, SX/B Compiler and SX-Key Tool, jbrierley wrote:

It's got an on-board regulator to supply the 3.3V from a 5V supply.  I'm connecting it according to the docs on the Parallax page ([url=http://www.parallax.com/Portals/0/Downloads/docs/prod/acc/HitachiH48C3AxisAccelerometer.pdf]http://www.parallax.com/Portals/0/Downloads/docs/prod/acc/HitachiH48C3AxisAccelerometer.pdf[/url]).  They connect +5V to Vdd (pin 6).  That's where most of the code came from.  It's BS2 code, so I had to modify it, naturally.  It's just very strange - it works perfectly...  but only under certain conditions:  SX Key and no external oscillator plugged in.  As soon as you remove the SX key and plug in an external oscillator (or use the built-in one), it gets the wrong numbers.
 

I'm using an SX Tech Board for prototyping it, just so you have all the information.

 

Thanks,
Jon

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