Hi Brian, I use this 'C' compiler with great success. It produce nice and compact code and is very easy to implement serial communications, all the interupts, delays, inputs from pins, outputs to pins, etc. Cheers Johan Pretorius [j.p@tnet.co.za] ------------- Original Text From: "Clewer,Brian" , on 8/6/97 4:23 PM: I know this is a very widely talked about subject, but has anyone used (or do they use) the 'C' compiler from 'RFsolutions' ? Their web site is www.rfsolutions.co.uk/icepic/c_comp.html I would like any comments, good or bad. Thanks for any info, Brian.