My company is an Apple Mac VAR (Apple Dealers since 1978) and I have had to simply give up using Macs and buy a PC in order to develop our many hardware and PIC projects. I first bought software PC emulators for the Mac then found out that the serial ports on the Mac were not standard. I then bought PC cards for the Mac (~#450 UK) and again found out that the serial ports were not standard and so could not drive my ICEPIC emulators and programmers. Eventually, after great expense and many wasted months I bought a cheap PC just for PIC development (using MPLAB and ICEPICs from RF Solutions) and got my jobs done, completed and finished. If Steve Jobs sees this then please note that 'a brilliant computer is just a BOX if it cannot connect with the outside world!'. Steve Jobs' closed box approach killed the Mac. When the Apple ][ (][ plus, ][e ) was first released they ruled the world as we could develop and plug in over 1,000 interface cards. Jobs developed the Mac with just a puny serial interface (+ scsi for the disks) and left Macs just for Memo writing. So, finally, my advice after great expense and never recoverable lost time is to give up and buy a PC - at least you will get your projects finished. I know win 95/98 is still not as good as the Mac but so what, you have a job to do. Stephen H Alsop, personal: dms@ukonline.co.uk - http://web.ukonline.co.uk/dms Office - S&S Systems Ltd, UK - http://easyweb.easynet.co.uk/~s.ssystems -----Original Message----- From: David Peterson Subject: Mac :I would like to hear from anybody who has done any programmiing of PIC's :on the macintosh. :What hardware & assembler/programmer was used. :Any problems encountered ect. :Being very new to programming, any tips or pointers to information :especially on Pulse Width Modulation would be appreciated. : :Thanks David. :