TCP continues playback of the RT system

Hi all!

Project:

I have an AVR32 Board, which collects data continuously and sends it to a PC. The PC communicates with the AVR via LabVIEW for data processing and for example metrics. So far, I used a RS232 connection and processed incoming data through the VISA driver. But since the serial connection is so slow I want to now go to the TCP/IP protocol.

Current state of work:

With the connection in series, I checked the COM-port buffer every n milliseconds and processed data in a queue later. So basically my VI has checked if the PC has received something and processed immediately.

Problem:

So I tried to create a similar VI with TCP read and I thought I have neededed immediate mode. I wanted to do this since it is a continuous data stream with a custom protocoll where the package sizes vary. But while wireshark told me that data packets arrive, I can't read them in LV

Basically I have the same problem as this guy But unfortunately he already worked on it without lighting poor bastards like me . So could you please help me with this?

I joined my current test VI.

Thank you

Prunebutt

Sorry for the reproduced... where's the edit button? o.O

OK, I might have figured it out by myself. My problem was that I had to specify how many bytes to read. My VI received packets as soon as I said to wait 1 byte to read.

Thanks for reading in any case.

Tags: NI Software

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