odd return from com ports

[Malcav]

Ok Have a program that reads from a com port. Not done this before so have read up on it. The code I have seems to be programmed fine. It connects and retreives data. However it is not the right data. Values should range from 0-F this is what is returned

ü<þ8|üü<þ|þpŽ<þþ|ü€Ž<<ü8~þýŸÿ‚,|‚ýhLäXHýý(Ÿ(ùŠþ*><=úüO<Ž"
…Æ>IýþûºÿýüŽ…,ÿü¾š|þüȾþüü%Œ<ÿ<þüžüþýüþŽ<üü‹þ<ö

Also there should be rought 2-3Kb of it not a few lines.
Could it be an ascii - unicode problem?

 

[MKuiper]

My guess is there is something wrong with the port settings like baudrate, databits, parity, stopbits. Look in MSDN Library for SetCommState, GetCommState and DCB.

Marcel

 

[zeitghost]

Which operating system?

Which computer?

 

[Malcav]

Os : windows xp
comp : ? normal desk top pc

 

[zeitghost]

Ok. Know nothing about programming com ports under Windoze, but as mentioned about, it looks like a wrong baud rate to me... what baudrate were you expecting?

And what is the pc connected to?

 

[Malcav]

Hi
Thanks for the help but I have reprogrammed the entire program to use sql rather than 'faircom' (whatever that is) and we already have an service the gets the data.

 

[Salem]

Use hyperterminal and play with the connection settings (baud rate etc) until you find out what is actually being used.

It will be quicker than edit / compile / test for your code.


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