ANT Forum

From the .FIT documentation, it looks like there are two floating point types defined, 0x88/float32 and 0x89/float64.

I can find no other reference to them in the documentation or Profiles.xls spreadsheet.

Are these two types simply IEEE-754 single- and double-precision floating point types? Are there any restrictions on valid data for them? The 0xffff "invalid" value is actually a valid quiet NaN value. Maybe this is by design.

Regards,
Mark      

Hi Mark, FIT uses standard floating point representation for the float32 and float64 types with the invalid value (all '1's) indicating uninitialized.

     

FIT uses standard floating point representation

Which standard would that be?      

-The FIT float32 and float64 types follow IEEE 754