Re: [Freedos-user] Difficulty with serial communications

2022-02-05 Thread G.W. Haywood via Freedos-user
Hi Frank, On Sat, 5 Feb 2022, Frantisek Rysanek wrote: Yes. I recall ... Crikey, that was above and beyond the call! Thank you very very much for that astounding effort. I've skimmmed it (it's late here and her indoors is grumbling) but I'll spend a lot more time on it tomorrow. I've been

Re: [Freedos-user] Difficulty with serial communications

2022-02-05 Thread Frantisek Rysanek
On 5 Feb 2022 at 0:48, G.W. Haywood via Freedos-user wrote: > As I > said in my OP I had to modify some of the cards because they couldn't > share interrupts properly, by cutting traces and inserting switching > diodes to do the 'wired or' kind of thing. > Yes. I recall ISA multiport boards by Adv

Re: [Freedos-user] Difficulty with serial communications

2022-02-05 Thread G.W. Haywood via Freedos-user
Hi there, On Sat, 5 Feb 2022, Frantisek Rysanek wrote: Note that PCI boards do not use "well known" port addresses. ... ... e.g. some interesting work by Michael Chourdakis: https://www.codeproject.com/Articles/894522/The-Low-Level-M3ss-DOS-Multicore-Mode-Interface Thank you very much for a m