Hi!
ECHO TEST>COM1
>>> good idea. unfortunately this only works with proper
>>> DTR/CTS/RTS/... status lines connected.
> Unless you select a no-handshake mode.
MODE might be able to suggest to a partner 'I am ready to receive'.
there is no such thing ( for MODE) as 'ignore status lines. s
Hi!
>>> ECHO TEST>COM1
>> good idea. unfortunately this only works with proper
>> DTR/CTS/RTS/... status lines connected.
Unless you select a no-handshake mode. You may also
have issues with your null-modem cable. I even vaguely
remember MODE itself having a bug at one time, using
a wrong bit
On 28 Dec 2019 at 18:11, tom ehlert wrote:
> >When I couldn't get a reading on my scope I decided a more direct approach
> >by piping direct from
> the console:
> >ECHO TEST>COM1
>
> good idea. unfortunately this only works with proper DTR/CTS/RTS/... status
> lines
> connected.
>
>
> Tom
Ma
COM1. The hardware that it is connected to does not use hardware flow
> control. No data appeared to be transmitted.
>
> When I couldn't get a reading on my scope I decided a more direct
> approach by piping direct from the console:
> ECHO TEST>COM1
>
> When I do thi
> MODE COM1:BAUD=9600 DATA=8 STOP=1 PARITY=N DTR=OFF RTS=OFF
MODE (for anyDOS) does nothing sensible about DTR/RTS.
(it might set the status line outputs, I don't know.
there is no way to change the input of status line behaviour.
> I suspect that DTR/RTS being on is the reason why I cannot wri
The first thing you should do is to make sure COM1 is even set up correctly on
your computer. On older computers the COM ports were automatically enabled,
but on newer computers they aren't always turned on. I think the easiest way
to check is to get into DEBUG (from the DOS prompt and enter:
;COM1
When I do this I get:
Error reading from device COM1: write fault
(A)bort, (I)gnore, (R)etry, (F)ail?
From: dmccunney
Sent: Friday, 27 December 2019 11:55 PM
To: Discussion and general questions about FreeDOS.
Subject: Re: [Freedos-user] MODE not changi
On Fri, Dec 27, 2019 at 6:13 PM Matt Jacobs wrote:
> I suspect that DTR/RTS being on is the reason why I cannot write to the
> serial port.
How are you *trying* to write to the serial port? What is connected to
the port? How is it connected? DTR/RTS is hardware flow control,
used to determine
Hi,
If I type the following command into mode:
MODE COM1:BAUD=9600 DATA=8 STOP=1 PARITY=N DTR=OFF RTS=OFF
and then go:
MODE COM1 BAUDHARD=1
I get:
UART is 16450 or newer. Reading parameters:
no parity, 1 stop bit, 8 bit, 9600 baud, RTS on, DTR on.
For the life of me I can't figure out how to
