>From: Paul Breneman [mailto:[email protected]] >Sent: Tuesday, September 28, 2010 1:24 AM >Hi Michael, > >> ... I intend to port Async Pro to Lazarus/Linux/ARM, once we >> start working on the project (which we are raving about since years, so >> don't hold your breath ;) ) > >I've spent many years with AsyncPro (even 5 years as an APro TPX person) >and I would not recommend porting APro. It has too much legacy code in >too many layers and is full of Win32 oddities. But maybe you've dug >into this a bit and see a way to port just the higher layers? > >I do have threaded code using SynaSer on Linux that is almost identical >to threaded code on Win32 that is compatible with APro and SynaSer so I >can switch between the two libraries on Windows. Of course that is just >for basic serial port stuff. If you need protocols or other APro >features that makes things more difficult. >
Well, I am not really fond of AsyncPro because of the heaviness of the code but I have not found a good Delphi package alternative, which is either stable or maintained so we are using it still with D7. We only use the minimum functionality of AP though: - The TApdComPort object - Properties for setting port, baud, bits, parity, handshake etc - Properties for handling the buffer size - Methods/Events for sending and receiving byte data - We also use the possibility to switch from serial to TCP/IP But that is about it. We never ever used any of the other functionality of AP like the different protocols and stuff. Just the simple port. And that is what I would like to have also with FPC/Lazarus. I could even live without the TCP/IP mode. So if you have code to implement the simple serial comm system outlined above I'd be very interested to try that out. My immediate application calls for communicating with a data acquisition device with a binary data transfer protocol, so I need all 256 byte codes to pass transparently through to my application. There must be no interception based on data values. Example of packet structure: <type><blocklength><data><crc> All binary of course. What do you think? -- _______________________________________________ Lazarus mailing list [email protected] http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
