failure of serial communication

[K C]

Hi,

I use the FTDI devices a lot. If you want to use it as a serial port just configure it as a COM port and use it as a COM port in LabVIEW.

You don't need any of the FTDI VI's to use it as a COM port.

Kees

[jennyzzz]

So I just need to consider the communication between Maxim chip and LabVIEW, thinking nothing about FTDI, right?

BTW, do I need FTDI dll file related to LabVIEW? Or if I can detect COM4, it is enough for FTDI?

Thanks!

[Kurt-P]

As long as that chip accepts serial communication, you should be fine using NI VISA to communicate with it. I am not sure what is in the FTDI DLL. Typically, those DLLs expose some configuration functionality or there have lower level drivers that the FTDI accesses when it connects to the computer. LabVIEW does not need the DLL but you may need the DLL for the device to function properly. 

Best Regards,

-KP

[Dennis_Knutson]

That's correct. As long as the cable shows as a com port, VISA is all that you need. The dll is not required at all.

Please explain what pins you are connecting. Also attach your code. You need to set your string control for hex display.

[jennyzzz]

Thanks,

What do you mean by "set your string control for hex display"? How to set? By MAX or programming in chip?

I am not quite sure about the pins I was connecting. It was a demo board from other company. It has its own software to display the result from the Maxim chip and it works. My task is to try to read the Maxim chip using LabVIEW, not their own software.

If I cannot read in MAX VISA test panel, can I read the data from any VI?

[crossrulz]

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jennyzzz wrote:

What do you mean by "set your string control for hex display"?

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It is a LabVIEW string control/indicator setting.  Right-click on the string control/indicator and choose Hex Display.