PyVCAM installs, passes tests, but hangs on get_frame calls

[Hannahmar]

I was able to successfully install PyVCAM. If I run python test_camera.py, all tests pass. If I run python check_frame_status.py, I get a series of

Seq frame status: EXPOSURE_IN_PROGRESS
Seq frame status: EXPOSURE_IN_PROGRESS
Seq frame status: EXPOSURE_IN_PROGRESS
Seq frame status: EXPOSURE_IN_PROGRESS
Seq frame status: EXPOSURE_IN_PROGRESS
Seq frame status: EXPOSURE_IN_PROGRESS
Seq frame status: EXPOSURE_IN_PROGRESS
Seq frame status: EXPOSURE_IN_PROGRESS
Seq frame status: EXPOSURE_IN_PROGRESS
Seq frame status: EXPOSURE_IN_PROGRESS
Seq frame status: EXPOSURE_IN_PROGRESS
Seq frame status: EXPOSURE_IN_PROGRESS
Seq frame status: EXPOSURE_IN_PROGRESS
Seq frame status: EXPOSURE_IN_PROGRESS
Seq frame status: EXPOSURE_IN_PROGRESS
Seq frame status: EXPOSURE_IN_PROGRESS

until I press ctrl+c. However, none of the acquisition test scripts work. They don't throw any errors, they just hang indefinitely. Do you have any idea what might be causing this? Thanks in advance for any help you can provide.

[stevebellinger]

I can help, but I need more information. Can you please provide the following?

1. Camera
2. Interface (USB or PCIe)
3. Operating system

[Hannahmar]

It's Kinetix camera, PCIe interface, windows computer

[stevebellinger]

It sounds like your camera is not returning frames to the host. Can you try to capture a frame using PVCamTest.exe? This application is located in your PVCAM install directory.

Also, can you please tell me your version of PVCAM?

This will tell us if PVCAM is functioning, then we can move onto PyVCAM.

[Hannahmar]

I was able to capture a frame with PVCamTest.exe, I'm using pvcam version 3.10.318

[stevebellinger]

Can you please re-check your PVCAM version? I am looking for a version that looks like 3.9.5.6. I highly recommend installing the latest version from the website if needed.

[Hannahmar]

I double checked, I'm using PVCAM version 3.9.5

[stevebellinger]

I will try to reproduce the problem. Can you tell me which version of camera FW you are using? This will be visible in PVCamTest.

[Hannahmar]

Firmware version: 30.20

[stevebellinger]

Unfortunately I wont get access to the required hardware until tomorrow at the earliest. I will keep you posted.

If you want to attempt troubleshooting before then, please take a look at pvcmodule.cpp and verify NewFrameHandler is getting called. Enabling print statements is the easiest method. Just remember to re-install PyVCAM after making changes.

It sound's like NewFrameHandler isn't getting called which is bizarre since PVCAM is working. Please keep an eye out for any error messages on the console.

[stevebellinger]

Hannahmar, I won't be able to get access to the required hardware until next week. It may be helpful to look at PVCAM logs during the failed tests. Can you set the following environment variables?

1. PVCAM_CORE_LOG_FILE = %USERPROFILE%\desktop\pvcam_logs\pvcam_core.txt
2. PVCAM_DDI_LOG_FILE = %USERPROFILE%\desktop\pvcam_logs\pvcam_ddi.txt

Clear the log before running a failed test. I'm fairly certain the resulting log can then be attached to a message in this forum by dragging it into the textbox.

Beware those logs can get large. I recommend removing the environment variables after collecting the logs.

[stevebellinger]

Hannahmar, using your version of the Kinetix firmware, the PCIe interface and a slightly newer version of PVCAM, I was able to collect frames using PyVCAM. At this point I would like to try ruling out a local configuration problem. Please post the requested PVCAM logs when they are available. Thank you.

[Hannahmar]

Sorry for the delay. We had some hardware issues. We will update you once it's resolved. Thanks!

[Hannahmar]

I tried the test scripts again with USB connection and all of them run. Looks like there might have been connection issues with the PCIe card. Thanks for the help!

[stevebellinger]

Great! Please re-open this issue if you need additional support for PCIe.