On Tue, May 22, 2012 8:41 am, alan.b.pearce@stfc.ac.uk wrote: > Look in the libraries available for the PIC32, IIRC there are IIR and FIR > filters there, and should have source code. Yes, there are FIR functions for the PIC32 in C32- but they are really just wrappers around mips_fir16() and mips_fir16_setup(), which are only in libdsp.a- not source. I suspect that the source code is actually MIPS assembly. No joy there. Matt Matt Bennett Just outside of Austin, TX 30.51,-97.91 The views I express are my own, not that of my employer, a large multinational corporation that you are familiar with. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .