port COM1 checking

[roddy]

how would you check COM1 is receiving info ?

I have a loop back plug but can't remember what program you need to use to check it ?

any ideas

cheers

 

[xpi0t0s]

I used to use a terminal emulator called ProComm to listen in on a COM port - used to use it for debugging software. Doesn't look like it's free - it's on the Symantec web site, but I'm sure there'll be a TE out there that's free and can listen in on com ports. sf.net seems to be down at the mo' so can't check there. Tried HyperTerminal but it doesn't seem to listen in on COM ports.

 

[roddy]

yeh! I tried hyperterminal as well with no joy and Microsoft don't seem to package MS diagnostics with WinXP pro.

I try and find a copy of procomm.

cheers

 

[unshift]

hyperterminal does work for a basic test - how are you using it ?

- check/test your loop back cable/plug again

- or take a known working serial cable plug in one end and short out the recieve and transmit pins on the other (paperclip works) do a google to find pin outs or if it is a rs232-db9 i have attached an image

when you open hyperterminal with the pins shorted (or with loop back plug installed) you should be able to see whatever you type in the terminal session, remove the short and you don't

the obvious - if it does not work check your bios setup i have seen some new computers with com ports set to disabled out the box, for older os's and hardware check for conflicts with irqs

or there may be a fault with the motherboard/serial port......

let me know if any probs

 

[roddy]

just metered out my loop back test plug and it faulty, I get a new D9 female at the weekend, then try your suggestions 'unshift'

cheers