Hey, Could you cook a test case? That way we can try to take a look at the issue.
Carlos. > > First, I can succesfully read a text string, when I "loopback" a > serial cable, connecting pins 2 and 3.... I send the string and can > read it immediatly, it worked fine for me in Linux (running mono as > root, my mono version is 1.2.2). The code I used is the same found in > http://www.mono-project.com/HowToSystemIOPorts > > But I cannot succeed in another mono application, where I try to > communicate to an external device using modbus (binary protocol). The > device correctly understands my query, and I know it responds (because > a "TX" led blinks in the device), but mono can't get any data from the > port. Depending on mono version, and whether I'm root or not, I can > get two types of error... sometimes a "timeout" exception is raised, > and sometimes i get a byte with a "255" value. > > I tryed other (non-mono) applications to communicate to the same > external device, and they work ok in Linux, and also in Windows. > > I'm still debugging, but maybe there is something with DTR signals, > etc., or maybe a bug with binary communications. > > i'll keep trying and will post if I find a solution.... > > if anyone got binary communications working OK, please inform what was > the os distributon/ monon version used...eventually i could change my > system set-up, if that fixed the problem.... > > thanks, Victor > _______________________________________________ > Mono-devel-list mailing list > Mono-devel-list@lists.ximian.com > http://lists.ximian.com/mailman/listinfo/mono-devel-list _______________________________________________ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
