David You neglect to mention the make / mode of USB to RS232 Serial adapters that you have tried using already.
At work, I've had very good results with an "EasySync" USB to RS232 Serial adapter that is carried by Dontronics in Melbourne. I have NOT used it to download from a flight logger, but have connected it to a whole range of other devices like EPROM programmers, protocol analysers, embedded instrumentation and a variety of baud rates up to 115200, and it works 100% reliably (which is more than I can for my DELL C840's onboard serial port !) See http://www.dontronics.com/usb_232.html for details. You may also want to check with the EW Logger people for "known good" and "known dud" brands of these adapters. The ones from Dontronics use a FTDI brand chipset which by all accounts is of excellent quality (just look at the testimonials from people who bought these from Dontronics) When I keyed "EW Logger USB" into Google, it returned the following link to the EW site. http://www.ewuk.co.uk/acatalog/index.html?http://www.ewuk.co.uk/acatalog/catalogbody.html&CatalogBody On that page, it says (a) that they offer a serial to USB adapter and that it "is guaranteed with a money back pledge" (maybe a sign that others have had the troubles you're having) and (b) They also offer an EW Logger to Computer serial cable which it says "EW logger to Computer 9 pin serial lead, (note this is not a conventional serial lead as the EW is wired to drive a printer). This lead must also be used if a serial to USB adaptor is used. " Which makes me suspect there's something peculiar with handshaking that requires more than just a TX, RX and Ground cable to get the RS-232 signals just spot on. Cheers Jason Armistead > Folks, > Has anyone had any success in getting an EW Model D > Logger to talk to a computer via a USB to RS232 serial > adapter? I've tried two different adapters, and neither > works properly. I've checked everything else in the system > on a desk top computer (with a real serial port), and it > all works, but my new laptop daoesn't have a serial port! > > If you have been successful, I'd love to know how you did > it, and the make/model of the adapter > > David Villiers > VH-GMP > > ---------------------------------------------------------- > ------ This message was sent using iiMetro WebMail > _______________________________________________ > Aus-soaring mailing list > [email protected] > To check or change subscription details, visit: > http://lists.internode.on.net/mailman/listinfo/aus-soaring _______________________________________________ Aus-soaring mailing list [email protected] To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
