FIX included, Center the negative mag vector values in HMC58X3::getValues(float *x,float *y,float *z)

[Joachimp-x]

HMC58X3::getValues(float *x,float *y,float *z)
Returns values from 2^16 when negative magnitudes are detected.

see design guide page 7 at:
corvusm3.googlecode.com/files/DesignGuide5843revB.pdf

NB, I'm using your library with the LeafLabs Maple RET6 which has a native implementation of Wiring for an 72MHz ARM Cortex M3 including native working i2c lib.
http://leaflabs.com/

The fix is simple, shift the values of negative magnitude from centered on 2^16 to zero:
  if(xr > 2048) xr -= 65536;

Implimented in: HMC58X3.cpp

void HMC58X3::getValues(float *x,float *y,float *z) {
  int xr,yr,zr;

  getRaw(&xr, &yr, &zr);

  //if magnitude is negative, i.e. greater than 2048 , adjust to return negative
  if(xr > 2048) xr -= 65536;
  if(yr > 2048) yr -= 65536;
  if(zr > 2048) zr -= 65536;
  // end fix negative

  *x= ((float) xr) / x_scale;
  *y = ((float) yr) / y_scale;
  *z = ((float) zr) / z_scale;
}

[Fabio Varesano (fabio-varesano)]

Hi there, I'm not sure I follow what problem is the library giving you.. would you please elaborate a bit more and/or provide example code which isn't working as it should? Thanks!