BF537 PPI and Ethernet simultaneously

[Marc Haselhoff]

Hi there,

i am working on a university project which basically collects and processes data from a Micron MT9T31 camera attached to the ppi of a BF537 EZ-Lite board.
This data should be transmitted to a computer via ethernet and stored on its harddrive.

Both, collecting data on the ppi and transmitting data via ethernet runs fine individually, but when using both together there is no data coming from the camera.
Actually i don't need to use the tcp or udp VIs, just turning on the ethernet-support in LabVIEWs build specifications is enough to stop the dataflow from the camera.

Has anyone had similar problems when using ethernet and ppi at the same time ?


Best regards,

Marc Haselhoff



As i am a german student please excuse my poor english.

Hardware:  BF537 EZ-Lite Board rev. 2.2,
                   Micron MT9T031 Camera
                   Homebrew (but working) adaptor (camera -> ppi)
Software:   LabVIEW Embedded for Blackfin  2.5.1

[Kevin_S]

Marc,

In the Build Specifications in the Application Information options, do you have Debug Mode set to Instrumented (via TCP port)?

When you chose the Enable lwIP TCP/IP support in the Build Specifications, what are the other suboptions that you specified?  (A screenshot would suffice.)

Kevin S.
Applications Engineer
National Instruments

[Marc Haselhoff]

Hello Kevin,

Thanks for your quick answer.

Debug Mode ist set to Non-instrumented (via JTAG/EZ-KIT USB); a ADZS-HPUSB-ICE is connected to the EZ-KIT for debug.

There is no problem with the network connection when i create random data and send it to the corresponding VI on my computer.

Here are a few screenshots:








Best regards,

Marc Haselhoff

[Kevin_S]

Hi Marc,

I'm sorry that your posting has gone unanswered for so long.  I just want to confirm with you that we are investigating possible conflicts with various PPI lines and the LWIP (light weight IP) stack.  Research on the National Instruments side may take a while.  Analog Devices might have a ready answer for this since they designed the board.  If you are needing an immediate answer, you might contact them.

Regards,

Kevin S.

Applications Engineer

National Instruments