On 6/21/2018 3:45 PM, Schoenfelder, Tim M wrote:
Good point, this appears to be the crux of my issue.
Any suggestions/ideas as how to do this? Based on your reply, one
would expect that a TSR or similar is required to handle this if the
UEFI cannot be configured directly to do so.
I did configure the HP PC’s UEFI’s com1 & com2 interrupts to the
standard DOS interrupt values which still didn’t work.
How are you booting FreeDOS on a UEFI PC in the first place?
I am currently away from my FreeDOS programming stuff, I could send you
some diagnostic tool either tomorrow or over the weekend...
And all you need to configure any serial port,if it would be in any
form, shape or color DOS (not only FreeDOS!) compatible in the first
place would be the MODE command.
But it seems kind of odd to have an UEFI based PC that still has true
RS-232 serial ports... :?
Ralf
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