> From a software perspective the FTDI based ones are very > "transparent", aside from the "high" COM number. You can set them to any number you wat, even COM1 if it is free. But there will always be differences: - no hardware (register level) access - timing is very different IME whether a converter is transparent depends mostly on the application. Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: www.voti.nl/hvu -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist