topic Re: HCS12 L1822 Linker errors FDEC, FCMP and FINC in S12 / MagniV Microcontrollers

HCS12 L1822 Linker errors FDEC, FCMP and FINC

Sinky — Fri, 28 Mar 2008 20:12:32 GMT

Hello.

I have written a program that uses the SCI but when i put for loops of while loops into my code i get the following errors:

"Link Error: L1822: Symbol_FDEC in file ...main.c.o is undefined"

"Link Error: L1822: Symbol_FCMP in file ...main.c.o is undefined"

"Link Error: L1822: Symbol_FINC in file ...main.c.o is undefined"

Does anyone know what may be causing this?

I am using an MC9S12C32 (HCS12) with codewarrior.

Thanks, Sinky

Re: HCS12 L1822 Linker errors FDEC, FCMP and FINC

CompilerGuru — Fri, 28 Mar 2008 21:34:24 GMT

This means that you are using floats while linking against the integral only library. If you are only using increments, decrements and compares I would suggest to use int's or long's instead of floats.
Otherwise link against a library supporting floating point.

Daniel

Re: HCS12 L1822 Linker errors FDEC, FCMP and FINC

Sinky — Fri, 28 Mar 2008 23:08:56 GMT

Thanks for the help.

I had stupidly declared one of my variables as a double which makes no sense in a 16 bit processor. All fixed now.

Sinky