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by bhjel
Thu Sep 12, 2019 2:43 am
Forum: Camera board
Topic: Official V4L2 driver
Replies: 558
Views: 468872

Re: Official V4L2 driver

Any thoughts on adding a 4x4 binning, 320x240 "mode 8" to the v4l2 driver for the imx219? This would be immensely useful for our computer vision application.
by bhjel
Sat Sep 07, 2019 2:06 am
Forum: Camera board
Topic: 4x4 binning
Replies: 6
Views: 2196

Re: 4x4 binning

Hello,

Any updates on this? I agree that 4x4 binning on the IMX219 would be extremely valuable for certain computer-vision tasks. The ideal would be automatic "mode 8" selection below a certain res such that we could utilize it with the v4l driver.

Thank you
by bhjel
Mon Sep 02, 2019 9:02 pm
Forum: Camera board
Topic: 320x240 at 120fps and full FOV w/ OpenCV Advice
Replies: 0
Views: 105

320x240 at 120fps and full FOV w/ OpenCV Advice

Hello, I'm hoping to get an opinion on our current goal: We currently have our pipeline running well at 90fps, 320x240 with the V1 and V2 cameras. We have also achieved 120fps with the V2 camera at 320x240, but only with sensor mode 7 which heavily crops the image. We have forced sensor modes 4 and ...
by bhjel
Sat Jun 01, 2019 9:35 pm
Forum: Camera board
Topic: Raw sensor access / CSI-2 receiver peripheral
Replies: 531
Views: 166150

Re: Raw sensor access / CSI-2 receiver peripheral

Thank you for the detailed post. Currently studying your changes and 6by9's work. I am using the V4l2 driver for my application which has an additional 90fps cap that limited even the v2 sensor before my change.: "#define FPS_MAX 90" https://github.com/raspberrypi/linux/blob/rpi-4.14.y/drivers/stagi...
by bhjel
Sat Jun 01, 2019 10:39 am
Forum: Camera board
Topic: Raw sensor access / CSI-2 receiver peripheral
Replies: 531
Views: 166150

Re: Raw sensor access / CSI-2 receiver peripheral

Does GPU firmware limit the V1 cam to 90fps at 320x240 despite ov5647 sensor supporting 120 at 320x240? I have modified the kernel module to bump the cap to 120, but I can only achieve 120fps with the v2 camera.
by bhjel
Fri Mar 22, 2019 11:58 pm
Forum: Compute Module
Topic: USB Device disconnect causes kernel crashes
Replies: 1
Views: 541

Re: USB Device disconnect causes kernel crashes

Experiencing the same thing:

viewtopic.php?f=98&t=230161
by bhjel
Wed Mar 20, 2019 8:45 pm
Forum: Compute Module
Topic: Complete Lockup/Crash with CM3 Running Stretch and USB Camera
Replies: 12
Views: 2051

Re: Complete Lockup/Crash with CM3 Running Stretch and USB Camera

Unfortunately, this is not resolved even with 4.14.98. I have yet to try 4.19.
by bhjel
Tue Feb 05, 2019 7:53 pm
Forum: Compute Module
Topic: Rare comms failure with enc28j60 and compute module "netdev watchdog: eth0 ("enc28j60"): transmit queue 0 timed out"
Replies: 3
Views: 1651

Re: Rare comms failure with enc28j60 and compute module "netdev watchdog: eth0 ("enc28j60"): transmit queue 0 timed out"

I can see multiple fixes that were actually merged in on jan 9, so it is possible that this is fixed. At first glance I saw that the commits were made in November which was before our last update around December 6th. https://github.com/raspberrypi/linux/commits/rpi-4.14.y/drivers/spi/spi-bcm2835.c A...
by bhjel
Tue Feb 05, 2019 7:26 pm
Forum: Compute Module
Topic: Rare comms failure with enc28j60 and compute module "netdev watchdog: eth0 ("enc28j60"): transmit queue 0 timed out"
Replies: 3
Views: 1651

Rare comms failure with enc28j60 and compute module "netdev watchdog: eth0 ("enc28j60"): transmit queue 0 timed out"

Hello, We are experiencing an issue that is difficult to reproduce. "netdev watchdog: eth0 ("enc28j60"): transmit queue 0 timed out" It appears to be slightly more likely to happen when we are sending a significant amount of data from our software, but we have seen the issue crop up with a very smal...
by bhjel
Tue Feb 05, 2019 7:20 pm
Forum: Compute Module
Topic: Complete Lockup/Crash with CM3 Running Stretch and USB Camera
Replies: 12
Views: 2051

Re: Complete Lockup/Crash with CM3 Running Stretch and USB Camera

The "hub" I was referring to is a consumer usb hub, so I thought you were referencing the hardware on our board. We have one USB port and go straight to the mux chip. We have not modified the kernel in any way. I will try 4.19 soon. We have recently shifted priority to an issue with enc28j60 or spi ...
by bhjel
Tue Feb 05, 2019 7:14 pm
Forum: Troubleshooting
Topic: SPI transfer timed out with ENC28j60
Replies: 6
Views: 825

Re: SPI transfer timed out with ENC28j60

Same issue with our compute module product and 4.14.86-v7+ #1175.
by bhjel
Mon Jan 07, 2019 3:10 pm
Forum: Compute Module
Topic: Complete Lockup/Crash with CM3 Running Stretch and USB Camera
Replies: 12
Views: 2051

Re: Complete Lockup/Crash with CM3 Running Stretch and USB Camera

dmesg logs and clues: I cannot replicate the crash if the camera is attached after boot. I can also only replicate the crash if I pull the camera within the first ~15 seconds after starting the recording boot hangs seems to uniquely hang on "starting target sound card" when a usb camera is attached....
by bhjel
Thu Jan 03, 2019 8:40 am
Forum: Compute Module
Topic: Complete Lockup/Crash with CM3 Running Stretch and USB Camera
Replies: 12
Views: 2051

Re: Complete Lockup/Crash with CM3 Running Stretch and USB Camera

1. Kernel: Linux limelight 4.14.86-v7+ #1175 SMP Thu Dec 6 14:04:38 GMT 2018 armv7l GNU/Linux 2. This probably isn't an electrical issue - using the same hardware with an older image, the issue disappears. 3. The display stops working. Script used to confirm: #!/usr/bin/env/bash rm test.avi nohup av...
by bhjel
Wed Jan 02, 2019 9:42 pm
Forum: Compute Module
Topic: Complete Lockup/Crash with CM3 Running Stretch and USB Camera
Replies: 12
Views: 2051

Re: Complete Lockup/Crash with CM3 Running Stretch and USB Camera

Thanks for the reply. I meant to include the kernel version, but I'll need to grab it again tonight. I can tell you that we upgraded on December 7th or 8th to get your BGR stride fix. The issue does indeed occur on the IO board. I believe I left top running to confirm that the display stopped updati...
by bhjel
Wed Jan 02, 2019 4:23 am
Forum: Compute Module
Topic: Flashing IO board
Replies: 2
Views: 1008

Re: Flashing IO board

We have encountered a very small number of unflashable compute modules that get hot when power is applied. Our solution up to this point has been replacing them.
by bhjel
Tue Jan 01, 2019 2:17 am
Forum: Compute Module
Topic: Complete Lockup/Crash with CM3 Running Stretch and USB Camera
Replies: 12
Views: 2051

Complete Lockup/Crash with CM3 Running Stretch and USB Camera

Hello, We are experiencing a complete lockup of our CM3 modules which only occurs given the following: Raspbian Stretch Lite (does not occur on Jessie Lite) USB Camera is plugged directly into our device or compute module IO board. (does not occur with a USB Hub) USB Camera is actively recording vid...

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