DOS ain't dead

uart interrupt tx rx in Dos32 bit open watcom (Developers)

posted by Brian_extended, 16.11.2013, 01:14
(edited by Brian_extended on 16.11.2013, 01:25)

> Hi,
> I'm trying to develop an application, that use interrupt for serial port,
> to manage the receive and transmit event in Freedos 1.0 and dos4gw.

>
> Anybody has an example of a serial transmission, using the tx interrupt of
> the uart?
>
> Thanks in advance,
>
> maui

I'm in the middle of converting my TX/RX serial code to Phar Lap/Microway 32-bit code. I'm debugging it still, so will post my 16-bit code that was written "in the day". I seem to recall some Bit needing to be set that was not in the Technical Reference manual and I had to disassemble ST240 to figure out how they did it. I have hand-written corrections to that section of the IBM Tech Ref Manual.

I have a version for C++ 1.52, real mode. New version is at a Clean assemble in 386asm, need to debug it.



Turns out to be too long to load into a thread...

Complete thread:

• uart interrupt tx rx in Dos32 bit open watcom - maui, 11.11.2013, 11:14 (Developers)
  • uart interrupt tx rx in Dos32 bit open watcom - RayeR, 11.11.2013, 19:34
    • uart interrupt tx rx in Dos32 bit open watcom - RayeR, 12.11.2013, 01:50
  • uart interrupt tx rx in Dos32 bit open watcom - tom, 12.11.2013, 12:24
    • uart interrupt tx rx in Dos32 bit open watcom - RayeR, 12.11.2013, 12:30
    • uart interrupt tx rx in Dos32 bit open watcom - bretjohn, 12.11.2013, 16:55
      • uart interrupt tx rx in Dos32 bit open watcom - maui, 12.11.2013, 19:23
        • uart interrupt tx rx in Dos32 bit open watcom - bretjohn, 12.11.2013, 21:12
        • uart interrupt tx rx in Dos32 bit open watcom - tom, 13.11.2013, 11:22
          • uart interrupt tx rx in Dos32 bit open watcom - maui, 13.11.2013, 15:49
            • uart interrupt tx rx in Dos32 bit open watcom - Oso2k, 13.11.2013, 22:26
              • uart interrupt tx rx in Dos32 bit open watcom - maui, 15.11.2013, 19:43
                • uart interrupt tx rx in Dos32 bit open watcom - tom, 16.11.2013, 19:02
                  • uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 17.11.2013, 04:21
                    • uart interrupt tx rx in Dos32 bit open watcom - maui, 19.11.2013, 12:42
                      • uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 19.11.2013, 20:59
                      • uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 22.11.2013, 15:22
                        • uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 23.11.2013, 03:09
                          • uart interrupt tx rx in Dos32 bit open watcom - maui, 24.11.2013, 13:45
                            • uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 26.11.2013, 23:25
                              • uart interrupt tx rx in Dos32 bit open watcom - RayeR, 27.11.2013, 03:26
                                • uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 05.01.2014, 20:42
                                  • uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 26.01.2014, 02:06
                                    • uart interrupt tx rx in Dos32 bit open watcom - tom, 27.01.2014, 22:46
  • uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 16.11.2013, 01:14
    • uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 16.11.2013, 01:15
    • uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 16.11.2013, 01:16
  • uart interrupt tx rx in Dos32 bit open watcom - Brian_extended, 16.11.2013, 01:32