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by etest
Tue Nov 05, 2019 4:59 pm
Forum: Camera board
Topic: Hardware camera sync pulses
Replies: 105
Views: 20974

Re: Hardware camera sync pulses

Bad choice by me. Gpu_mem is processed by the early bootloader, not the main firmware, so doesn't show up directly. It will via "vcgencmd get_mem gpu" though. Personally I'd recommend just reinstalling with a native raspbian install and ditching noobs totally. Hi, I did the above and imaged a new m...
by etest
Fri Nov 01, 2019 4:03 pm
Forum: Camera board
Topic: Hardware camera sync pulses
Replies: 105
Views: 20974

Re: Hardware camera sync pulses

Thank you for your response, that is very helpful to know.
by etest
Fri Nov 01, 2019 2:20 pm
Forum: Camera board
Topic: Hardware camera sync pulses
Replies: 105
Views: 20974

Re: Hardware camera sync pulses

One additional question I have is: Would this hardware camera sync work for using the Raspberry Pi 3 Module B+ with a global shutter camera such as the Arducam? If not, would it "Using Flash with the Camera" ( from https://picamera.readthedocs.io/en/release-1.13/recipes2.html ) work with the Arducam...
by etest
Wed Oct 30, 2019 5:01 pm
Forum: Camera board
Topic: Hardware camera sync pulses
Replies: 105
Views: 20974

Re: Hardware camera sync pulses

Bad choice by me. Gpu_mem is processed by the early bootloader, not the main firmware, so doesn't show up directly. It will via "vcgencmd get_mem gpu" though. Personally I'd recommend just reinstalling with a native raspbian install and ditching noobs totally. Okay, so just to confirm: if I reinsta...
by etest
Wed Oct 30, 2019 4:21 pm
Forum: Camera board
Topic: Hardware camera sync pulses
Replies: 105
Views: 20974

Re: Hardware camera sync pulses

As far ar as I know, yes, but I don't work with noobs. Try altering something like gpu_mem and confirming that setting is reflected through. gpu_mem also doesn't show up as a variable yet it is listed in my config file..odd. Could you point me to a forum post or provide a NOOBS support contact that...
by etest
Wed Oct 30, 2019 3:26 pm
Forum: Camera board
Topic: Hardware camera sync pulses
Replies: 105
Views: 20974

Re: Hardware camera sync pulses

6by9 wrote:
Wed Oct 30, 2019 3:02 pm
If it isn't listed then it isn't set and will adopt the value of 0.
I can only suggest double checking spelling.
Double checked spelling, but is my config.txt location correct?
by etest
Wed Oct 30, 2019 2:48 pm
Forum: Camera board
Topic: Hardware camera sync pulses
Replies: 105
Views: 20974

Re: Hardware camera sync pulses

vcgencmd get_config int Does it return 3 for disable_camera_led? If not then you haven't edited the right config.txt (I really hate noobs) Thanks again for the follow up. When I tried that, disable_camera_led isn't even listed as a variable... I was editing config.txt in /boot/config.txt Where is t...
by etest
Wed Oct 30, 2019 1:50 pm
Forum: Camera board
Topic: Hardware camera sync pulses
Replies: 105
Views: 20974

Re: Hardware camera sync pulses

Something is obviously wrong in your dt-blob then. Reading back you say you're using NOOBS, and that's probably the issue (it normally is). Looking at the PiCamera docs you quote , I'm not sure they're right in wanting to update the recovery partition. AIUI the partition mounted as /boot is the one...
by etest
Wed Oct 30, 2019 1:06 pm
Forum: Camera board
Topic: Hardware camera sync pulses
Replies: 105
Views: 20974

Re: Hardware camera sync pulses

Something is obviously wrong in your dt-blob then. Reading back you say you're using NOOBS, and that's probably the issue (it normally is). Looking at the PiCamera docs you quote , I'm not sure they're right in wanting to update the recovery partition. AIUI the partition mounted as /boot is the one...
by etest
Wed Oct 30, 2019 1:00 pm
Forum: Camera board
Topic: Hardware camera sync pulses
Replies: 105
Views: 20974

Re: Hardware camera sync pulses

Something is obviously wrong in your dt-blob then. Reading back you say you're using NOOBS, and that's probably the issue (it normally is). Looking at the PiCamera docs you quote , I'm not sure they're right in wanting to update the recovery partition. AIUI the partition mounted as /boot is the one...
by etest
Tue Oct 29, 2019 7:29 pm
Forum: Camera board
Topic: Hardware camera sync pulses
Replies: 105
Views: 20974

Re: Hardware camera sync pulses

Drop back a level. Modify dt-blob.dts and compile it to dt-blob.bin with your preferred gpio choice. Leave disable_camera_led alone. When you start the camera it should turn that line on, and turn it off when the camera is closed. Until you have that working there is no point chasing your tale in t...
by etest
Tue Oct 29, 2019 6:36 pm
Forum: Camera board
Topic: Hardware camera sync pulses
Replies: 105
Views: 20974

Re: Hardware camera sync pulses

https://pinout.xyz/# BCM16 is pin 36. If you don't see sync pulses, please use raspivid instead of picamera. Here you can see a test procedure that does work even without a logic analyzer: https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=190314&start=50#p1512529 Logic analyzer is preferrable...
by etest
Tue Oct 29, 2019 5:23 pm
Forum: Camera board
Topic: Hardware camera sync pulses
Replies: 105
Views: 20974

Re: Hardware camera sync pulses

https://pinout.xyz/# BCM16 is pin 36. If you don't see sync pulses, please use raspivid instead of picamera. Here you can see a test procedure that does work even without a logic analyzer: https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=190314&start=50#p1512529 Logic analyzer is preferrable...
by etest
Tue Oct 29, 2019 2:34 pm
Forum: Camera board
Topic: Hardware camera sync pulses
Replies: 105
Views: 20974

Re: Hardware camera sync pulses

https://pinout.xyz/# BCM16 is pin 36. If you don't see sync pulses, please use raspivid instead of picamera. Here you can see a test procedure that does work even without a logic analyzer: https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=190314&start=50#p1512529 Logic analyzer is preferrable...
by etest
Tue Oct 29, 2019 1:13 pm
Forum: Camera board
Topic: Hardware camera sync pulses
Replies: 105
Views: 20974

Re: Hardware camera sync pulses

How are you testing for high / low signal on the output? Connect the output to another input and write some code that looks for it changing. Thank you both for your input. I used a sample script from https://projects.raspberrypi.org/en/projects/getting-started-with-picamera/5 to run the camera and ...
by etest
Mon Oct 28, 2019 7:12 pm
Forum: Camera board
Topic: Hardware camera sync pulses
Replies: 105
Views: 20974

Re: Hardware camera sync pulses

Thank you!
Did all of the above and yet still no high/low signals. Is there a firmware update I should focus on next?
Or any other ideas/checks I should incorporate?
by etest
Mon Oct 28, 2019 3:53 pm
Forum: Camera board
Topic: Hardware camera sync pulses
Replies: 105
Views: 20974

Re: Hardware camera sync pulses

To follow up on that last question, when I add the line for [email protected], I just want to verify that if I want to get a high/low signal output from the GPIO I should define the pin as "output" and with "no_pulling", correct?

Thanks again.
by etest
Mon Oct 28, 2019 12:51 pm
Forum: Camera board
Topic: Hardware camera sync pulses
Replies: 105
Views: 20974

Re: Hardware camera sync pulses

Thank you for the help! So since there is no [email protected] for 3bplus, I should just add a [email protected] line? See below: " [email protected] { function = "uart0"; termination = "no_pulling"; drive_strength_mA = < 8 >; }; // TX uart0 [email protected] { function = "uart0"; termination = "pull_up"; drive_strength_mA = < 8 >; }; // ...
by etest
Thu Oct 24, 2019 7:55 pm
Forum: Camera board
Topic: Hardware camera sync pulses
Replies: 105
Views: 20974

Re: Hardware camera sync pulses

Hi, I have been trying to get the camera sync pulses and this is what I have done so far: I am working with a RPi 3 Model B+ --Added 'disable_camera_led=3' to my config.txt file --In my device tree, under pins_3bplus: -----Under [email protected]_0_LED I changed external to internal and changed the ...

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