Sending ASCII to serial port

[Technojunkie]

Hi

I need to send the ASCII string /?<CR> <LF> to com1, 7 Bits, 1 start, 1 stop, even parity.

What's the easiest way to do it?

Cheers

 

[sidethink]

Hyperterminal

 

[mynsa]

hyperterminal or minicom depending on OS

 

[Technojunkie]

Hyperterminal

Please excuse my stupidity, but if anybody has time could they write me a small walk through.

How do I generate a carriage return then a linefeed?

Also...it's not a modem I'm talking to, it's an optical interface. (RS232 to IR)


Cheers

 

[mynsa]

can you elaborate more on what your trying to do?

hyperterminal is used for serial communications, however i am unsure how to send raw data directly to the serial port?

 

[sidethink]

IIRC there is an option in Hyperterminal under ASCII settings somewhere to get it to send a Line Feed after Carriage Return.

In plain english, once you have Hyperterminal configured to connect to your Com1 port with the right settings, hitting <enter> on your keyboard sends a Carriage Return.

If you adjust the setting mentioned above, it should also send a Line Feed in addition.

<CR> <LF> are just common ways of telling the remote device that you've finished inputting a command since ASCII applications listen to each keystroke as it is typed.

Sorry I can't be more detailed but its a long time since I have used Hyperterminal in this way.

 

[Technojunkie]

can you elaborate more on what your trying to do?

Ok I'll elaborate.

I've built one of these: http://www.powerprotocol.com.cn/allprotocols/IEC/IEC 1107 Electricity Meter Interface.pdf

It's basically an optical interface for talking to electricity meters, but the software for it doesn't work, and hardware is my thing not software.(I do know a bit about RS232 and ASCII though)

I thought I'd try sending the initiation string to the meter using some other bit of software and see what happened.


Cheers