15-10-2026, 02:48 PM
(15-10-2026, 01:33 PM)MbeeTech Wrote:(15-10-2026, 12:54 PM)fathertedcrilly Wrote: Is it safe to say that interrupts really aren't used anywhere on the standard platform save for this and the PIO B RTC bit ( on the PC85 ) ?
Thanks
Tony
The only interrupts that are used are generated by the PIO.
They are :
RTC interrupt (if fitted) or VSYNC (if linked, PC85 for Pseudo RTC),
Serial port receive,
Parallel port for printer RDY/ACK,
and on the 256TC for the keyboard token available.
Other software / hardware may create interrupts of course (eg: RTTY / FAX on the parallel port etc..)
but that's the extent of the interrupt usage for a regular system.
Hmm I thought the serial and parallel ports were always polled with the standard software suite ?
I suppose things like serial mice might be different
probably not going to bother with the 256TC so I can ignore that
At some point, all these kind of inputs into Novato will be part of the repo's Wiki
Thanks
Tony
