Reading Image Data from Serial Port

[Dennis_Knutson]

If the logger is constanly streaming data and the serial example does not work, then you have a problem with the com port settings or you are using the wrong cable. The advanced serial example may not be the best example to use either since it expects data to be terminated. I would recomend that you first try getting data with Hyperterminal before trying to write any LabVIEW code. Then you can do something like putting a VISA Bytes at Serial Port/VISA Read in a loop.

If you were using TCP/IP before and found that slow, you'll probably find that the serial connection is going to much much slower than that.

[Hosangadi]

I tried sending a simple"Hello world" string and I could recieve the data on Hyperterminal with same cable and communication port setting, I have not used TCP  directly I used GPRS to transfer data that is why it was slow, I think serial port will be faster than GPRS, my logger doesnt have a direct TCP connection.

I am using Tx,RX and Signal Ground pins of DB9 connector


Message Edited by Hosangadi on 08-09-2008 07:41 PM

[Dennis_Knutson]

You tried sending the 'hello string' from what to what? From the pc back to itself? What was suggested was to test the video capture with Hyperterminal. Unless you can get something from the logger in Hyperterminal, you have not tested anything.

[Hosangadi]

I have sent Hello World string from my logger to PC and received it  in both hyperterminal also in AdvancedSerialRead.vi!!! I have problem in receiving Image data only

[Dennis_Knutson]

Exactly what kind of problem? Do you not get anything in Hyperterminal? If that's the case, then there would seem to be some setting of the logger that is not being done? You have not mentioned the make and model of the logger or provided any details such as a programming manual. Have you contacted the vendor about the serial problem. It does not sound like a LabVIEW problem.