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by 6by9
Mon Nov 20, 2017 11:29 am
Forum: Compute Module
Topic: [SOLVED] Cameras not detected! vcgencmd get_camera outputs supported=2, detected=0 in cm3 with emmc flash
Replies: 8
Views: 204

Re: Cameras not detected! vcgencmd get_camera outputs supported=2, detected=0 in cm3 with emmc flash

The problem was that the gpio pins were powered externally and the jumper pins in j3 were put up in the wrong way which would actually power it up. Since the gpio pins were not powered the cameras were not being detected nor the inputs sent to the motor drivers. I also tried to communicate manually...
by 6by9
Mon Nov 20, 2017 7:26 am
Forum: Camera board
Topic: Raw sensor access / CSI-2 receiver peripheral
Replies: 273
Views: 53390

Re: Raw sensor access / CSI-2 receiver peripheral

Hi, it was difficult to create this photo, with 5MP Android camera through lense of +2.5 dpt. glasses I use for soldering. I soldered where the labels stated PP40 and PP39, do you say the official test point labeling is wrong? https://stamm-wilbrandt.de/en/forum/IMG_20171120_001730.detail.jpg Thank...
by 6by9
Sun Nov 19, 2017 4:44 pm
Forum: Camera board
Topic: Raw sensor access / CSI-2 receiver peripheral
Replies: 273
Views: 53390

Re: Raw sensor access / CSI-2 receiver peripheral

> If you trust that test point list then PP39 and PP40 look plausible seeing as 38&38 are the camera GPIOs, > but I don't have information to confirm. > I trusted it, as both showed up in several Pi Zero test point lists on the internet. And I soldered connectors to them (see photo below). Camera w...
by 6by9
Sun Nov 19, 2017 10:11 am
Forum: Camera board
Topic: Raw sensor access / CSI-2 receiver peripheral
Replies: 273
Views: 53390

Re: Raw sensor access / CSI-2 receiver peripheral

I will state again - GPIOs 28&29 FROM THE SoC (ie NOT on the 40 pin header which only has GPIOs 0-27 on it). GPIOs 28&29 are routed to the camera and display connectors ONLY. If you change the pinmuxing to route the signals elsewhere (eg GPIOs 0&1 on pins 27&28 of the 40 pin header) then the I2C wil...
by 6by9
Sat Nov 18, 2017 10:02 pm
Forum: Camera board
Topic: Raw sensor access / CSI-2 receiver peripheral
Replies: 273
Views: 53390

Re: Raw sensor access / CSI-2 receiver peripheral

GPIOs 28&29 off the SoC(*), not 0&1 (presented as pins 27&28 on the 40 pin header) I've just pushed a new branch rawcam_rebase which takes all the changes from the main userland repo with raspiraw changes on top. I don't see anything that would cause a seg fault or is significantly different from th...
by 6by9
Sat Nov 18, 2017 7:49 am
Forum: Camera board
Topic: Underwater Camera for Kayak
Replies: 6
Views: 314

Re: Underwater Camera for Kayak

Thanks for link to the modes 6by9, IMX219 even less choices? Why is there an ADV7282 in there? hmm parallel data - video ADC. interesting -for another day ;) IMX219 config again is under NDA and only the full 8MPix mode has been sniffed by others. If someone sniffed the other modes and either poste...
by 6by9
Fri Nov 17, 2017 5:51 pm
Forum: Camera board
Topic: bcm2835-v4l2: Failed to enable encode tunnel - error -62
Replies: 7
Views: 267

Re: bcm2835-v4l2: Failed to enable encode tunnel - error -62

MJPEG encoder updates pushed - https://github.com/Hexxeh/rpi-firmware/ ... 8befa4951d
Please backup anything critical before running rpi-update, or use a spare SD card on a fresh image.
by 6by9
Fri Nov 17, 2017 4:21 pm
Forum: Camera board
Topic: Underwater Camera for Kayak
Replies: 6
Views: 314

Re: Underwater Camera for Kayak

This had a link to the 5MP sensor https://github.com/raspberrypi/linux/issues/2257 Night mode, page 38 The OV5647 supports long integration time such as 1 frame, 2 frames, 3 frames, 4 frames, 5 frames, 6 frames, 7 frames, and 8 frames in dark conditions. I know the ISP stuff is done in the VC4 and ...
by 6by9
Fri Nov 17, 2017 3:56 pm
Forum: Camera board
Topic: vision sensor interfacing
Replies: 2
Views: 70

Re: vision sensor interfacing

CSI2 or CCP2 then there is a V4L2 driver for the CSI2/CCP2 receiver peripheral due to land when I can sort out a v4. Read from https://www.raspberrypi.org/forums/viewtopic.php?f=38&t=120702&start=300#p1231396 onwards. Whilst related to the TC358743 HDMI to CSI2 chip, the whole thing with the V4L2 su...
by 6by9
Fri Nov 17, 2017 12:55 pm
Forum: Camera board
Topic: Custom lens shading tables
Replies: 26
Views: 1638

Re: Custom lens shading tables

I have checked with different experiments that this problem is always present. This issue is kind of severe if the coding is really 3p5, as everything with a multiplier less than 1.0 falls into the problematic range. Why more problematic if it is 3p5? If you're trying to get more resolution to the ...
by 6by9
Fri Nov 17, 2017 11:03 am
Forum: Camera board
Topic: Raw sensor access / CSI-2 receiver peripheral
Replies: 273
Views: 53390

Re: Raw sensor access / CSI-2 receiver peripheral

If I want to increase framerate (in direction 90fps), what is needed to be changed? Same response as to fooforever above Sorry, but for that I really have to refer you to https://github.com/6by9/userland/blob/r ... odes.h#L30 Due to NDAs I can't assist on register setup. There's nothing stopping yo...
by 6by9
Fri Nov 17, 2017 7:27 am
Forum: Graphics, sound and multimedia
Topic: usb audio card with aes/ebu
Replies: 1
Views: 74

Re: usb audio card with aes/ebu

a) Do you want AES/EBU for the electrical format, or part of the signalling? AES/EBU and S/PDIF are nearly identical in protocol, but have different physical presentations (XLR vs TOSLink or phono). There are only a couple of differences in usage for some signalling bits (copy protection on S/PDIF, ...
by 6by9
Thu Nov 16, 2017 4:21 pm
Forum: Camera board
Topic: Official V4L2 driver
Replies: 511
Views: 317117

Re: Official V4L2 driver

Thanks 6by9! The max_video_height and max_video_width did not make a difference in the behavior. You should know that with this problem, the image does respond throughout the range of V4L2_CID_EXPOSURE_ABSOLUTE, it is just that the exposure varies thru a much darker range. With my temporary set to ...
by 6by9
Thu Nov 16, 2017 12:08 pm
Forum: Camera board
Topic: Custom lens shading tables
Replies: 26
Views: 1638

Re: Custom lens shading tables

The main thing to note is that this isn't in the main raspberrypi repos. I'd intended the userland branch and basic calibration app to be used as examples that others would take and use, not as a final solution. If we want custom lens shading in the main Raspicam apps (and it applies equally to rasp...
by 6by9
Thu Nov 16, 2017 10:55 am
Forum: General discussion
Topic: Blue Raspberry
Replies: 29
Views: 1039

Re: Blue Raspberry

Isn't it Ragworm who do lots of coloured PCBs, as used by Pimoroni on Flotilla?
Probably a bit pricey for mass producing Pi PCBs.
by 6by9
Thu Nov 16, 2017 10:01 am
Forum: Camera board
Topic: Official V4L2 driver
Replies: 511
Views: 317117

Re: Official V4L2 driver

I am running an application to display 1920x1080 video acquired in YUYV from the Raspberry Pi v2 camera. That application uses the bcm2835-v4l2 device driver to access the camera. The application uses the VIDIOC_S_FMT ioctl to set the YUYV format. I am running using ioctls to set V4L2_CID_EXPOSURE_...
by 6by9
Wed Nov 15, 2017 4:02 pm
Forum: Camera board
Topic: Custom lens shading tables
Replies: 26
Views: 1638

Re: Custom lens shading tables

OK, I've convinced myself that it is 3p5, and it's just the analysis tool that is wrong. The most compelling evidence comes from viewing the steady state stats using -set. pi@raspberrypi:~/userland $ ./build/bin/raspistill -t 0 -set <snip> mmal: Exposure now 12664, analog gain 256/256, digital gain ...
by 6by9
Wed Nov 15, 2017 12:49 pm
Forum: Compute Module
Topic: [SOLVED] Cameras not detected! vcgencmd get_camera outputs supported=2, detected=0 in cm3 with emmc flash
Replies: 8
Views: 204

Re: Cameras not detected! vcgencmd get_camera outputs supported=2, detected=0 in cm3 with emmc flash

PhilE wrote:
Wed Nov 15, 2017 12:39 pm
That's unfair - you'd think the compiler could warn about empty statements.
This was Borland C++ 3.1, so a fair while ago (~2003 at a guess). Modern gcc probably will complain.
And blaming the compiler didn't wash with the customer.
by 6by9
Wed Nov 15, 2017 12:44 pm
Forum: Graphics, sound and multimedia
Topic: HDMI to CSI-2 via TC358743 on kernel 4.1
Replies: 335
Views: 59364

Re: HDMI to CSI-2 via TC358743 on kernel 4.1

1080P30 encode is what the codec block is specified for. 1080P50 on a stock Pi will drop frames as you are a fair way over the spec. The green lines are artefacts of running out of SDRAM bandwidth, and under very high stress conditions some writes get dropped and we get green :-( At your own risk yo...
by 6by9
Wed Nov 15, 2017 12:36 pm
Forum: Compute Module
Topic: [SOLVED] Cameras not detected! vcgencmd get_camera outputs supported=2, detected=0 in cm3 with emmc flash
Replies: 8
Views: 204

Re: Cameras not detected! vcgencmd get_camera outputs supported=2, detected=0 in cm3 with emmc flash

Ahem - that should say: dtparam=i2c_arm=off (no underscores in dtparam) Doh! Always read what is actually there, not what you think is there. Thank you. Tangent: Reminds me of a bug that I introduced (unintentionally I hasten to add): if (condition1) { //This shouldn't happen, so let's clean up whe...
by 6by9
Wed Nov 15, 2017 11:56 am
Forum: Camera board
Topic: bcm2835-v4l2: Failed to enable encode tunnel - error -62
Replies: 7
Views: 267

Re: bcm2835-v4l2: Failed to enable encode tunnel - error -62

I have a patch to the MJPEG codec that seems to do what I expect, and I haven't observed any nasty side effects. It needs reviewing still, but will hopefully be in the next rpi-update release. I'll keep this thread up to date.
by 6by9
Wed Nov 15, 2017 11:55 am
Forum: Camera board
Topic: Custom lens shading tables
Replies: 26
Views: 1638

Re: Custom lens shading tables

[*]with a raspistill compiled like that, I get a different shading correction as compared to the stock raspistill. <snip> The shading correction of the newly compiled raspistill is actually enhancing the color shift visible in the .jpg-image, compared to the stock raspistill. Thus I am afraid that ...
by 6by9
Wed Nov 15, 2017 11:06 am
Forum: Compute Module
Topic: [SOLVED] Cameras not detected! vcgencmd get_camera outputs supported=2, detected=0 in cm3 with emmc flash
Replies: 8
Views: 204

Re: Cameras not detected! vcgencmd get_camera outputs supported=2, detected=0 in cm3 with emmc flash

Nothing obviously wrong in your description, other than presumably a typo as it should be dt_param=i2c=off or more precisely dt_param=i2c_arm=off edit: This is wrong - see correction below! Your raspi-gpio output looks correct anyway. External pullups shouldn't be needed on the I2C lines - certainly...
by 6by9
Wed Nov 15, 2017 10:22 am
Forum: Camera board
Topic: Hardware camera sync pulses
Replies: 5
Views: 416

Re: Hardware camera sync pulses

Followed the instructions how to get latest release from here: https://www.raspberrypi.org/documentation/raspbian/updating.md (Which takes a while to complete) Now uname gives: Linux raspberrypi 4.9.35-v7+ #1014 SMP Fri Jun 30 14:47:43 BST 2017 armv7l GNU/Linux Which is STILL before your build of 2...
by 6by9
Tue Nov 14, 2017 8:38 pm
Forum: General discussion
Topic: help! fswebcam error
Replies: 7
Views: 220

Re: help! fswebcam error

All V4L2 (Video 4 Linux 2) devices webcams create a node under the /dev/ directory called videoX, where X is a number normally starting at 0. Hence the default value is /dev/video0 as that is what the first webcam would normally register as. In your case it appears that that node has not been regist...

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