[Elphel-support] Help on possible faulty FPC cable [SEC=UNOFFICIAL]

Sun Mar 6 16:17:51 PST 2022

Hi, Andrey,

Our electrical technician has decided to use shorter FPC cables for the two sensors. And it will be one sensor per camera body. One with 100mm FPC and another with 70mm FPC. My question is when we replace the 450mm with 100mm cable, do we need to change the port configuration?

Thanks.

Regards,
Norman
________________________________
From: Elphel Support <support-list at support.elphel.com>
Sent: 28 February 2022 12:01 PM
To: XIONG, Norman <nxi at ansto.gov.au>; Elphel List <support-list at support.elphel.com>
Subject: Re: [Elphel-support] Help on possible faulty FPC cable [SEC=OFFICIAL]

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After you remove the fan from the bottom of the camera (two M2.5 screws) you need to remove 8 (4+4) screws from the front and back panel. Then remove front one and push boards with the heat plate (boards are attached to it) pushing on the heat plate (you may make some simple tool to push on that plate). When pushing - be careful with the SSD not to hit the camera tripod mount part as it becomes loos when you remove the fan.

When you will be reassembling the camera - I put the back panel on the assembled boards first, and then slide them together into the camera body, making sure that a micro-USB connector does not hit the back panel (otherwise it can be easily peeled off the PCB).

And yes - camera does not see port 1. It is more likely the PCB, not the cable problem - I do not see how the cable can fail gradually:
from autocampars.log
...
00037.35 autocampars: All frames:
sensor_fram16        0x2        0x0        0x0        0x0
compressor_fram16        0x0        0x0        0x0        0x0
      i2c_frame16        0x2        0x0        0x0        0x0
    sensor_aframe 0x00000002 0x00000000 0x00000000 0x00000000
compressor_aframe 0x00000000 0x00000000 0x00000000 0x00000000
compressor_gframe 0x00000000 0x00000000 0x00000000 0x00000000
00037.36 autocampars: Frames: 0, 0, 0, 0
00037.37 autocampars: #### Wrong/missing sensor on port 1, code=0 (expected 52) . Driver reports errors until port is disabled at later stage ####
00037.38 autocampars: #### Wrong/missing sensor on port 2, code=0 (expected 52) . Driver reports errors until port is disabled at later stage ####
00037.39 autocampars: #### Wrong/missing sensor on port 3, code=0 (expected 52) . Driver reports errors until port is disabled at later stage ####
00037.40 autocampars: port=0 GLOBALS[sensors][port][0]=mt9p006
00037.41 autocampars: port=1 GLOBALS[sensors][port][0]=none
00037.42 autocampars: port=2 GLOBALS[sensors][port][0]=none
00037.43 autocampars: port=3 GLOBALS[sensors][port][0]=none
...

Andrey

---- On Sun, 27 Feb 2022 17:50:35 -0700 Elphel Support <support-list at support.elphel.com> wrote ----

Norman,

If it is not too late - you need to take off fan first, then slide out the boards of the camera. Fan has a long connector reaching to the board through the hole.

Andrey

---- On Sun, 27 Feb 2022 16:59:41 -0700 XIONG, Norman <nxi at ansto.gov.au<mailto:nxi at ansto.gov.au>> wrote ----

Hi, Andrey,

Thanks for the quick response.
Here are the two log files, with both ports connected with sensors. I'll try to open up the box to reconnect the cable shortly.

Regards,
Norman

________________________________
From: Elphel Support <support-list at support.elphel.com<mailto:support-list at support.elphel.com>>
Sent: 28 February 2022 10:19 AM
To: XIONG, Norman <nxi at ansto.gov.au<mailto:nxi at ansto.gov.au>>
Subject: Re: [Elphel-support] Help on possible faulty FPC cable [SEC=OFFICIAL]

CAUTION, EXTERNAL EMAIL: This message has come from a source outside of ANSTO. Do not take action, click links or open attachments unless you recognise and trust the source of this email and know the content is safe. Please report suspicious emails to servicedesk at ansto.gov.au as an attachment.

Hello Norman,

Can you get log files from the camera?

>From Linux system

ssh-copy-id root at 192.168.0.9 # Or whatever IP is assigned to the camera

default password is pass

Then you can use scp to copy files to your local directory:

scp root at 192.168.0.9:/var/log/messages
scp root at 192.168.0.9:/var/log/autocampars.log

Abd then send these files.

Yes, we will prepare the new camera, but in any case I would like to try to troubleshoot the camera you have, if that will not work we will send you a replacement one. You may try to open the camera and get access to the camera side of the cable. Camera has 4 cable ports so you may try to either just reconnect the cable or try other port.

The gold-plated pins on the cable end should be towards the connector lock. When you try different port, the image can be corrupted (delays fro the long cable were set only for ports 0 and 1.

Andrey

---- On Sun, 27 Feb 2022 15:57:50 -0700 XIONG, Norman <nxi at ansto.gov.au<mailto:nxi at ansto.gov.au>> wrote ----

Hi, Andrey,

I am not able to get port 1 back. When I connected both ports, I got only one sensor image on port 0. And if I connect only port 1, the system can't find any sensor.

Anyway, we decided to buy another 393 system to support the second sensor. This is mainly because we need to put the two sensors far away from each other, where the FPC cables are not long enough to connect both sensors to the same system.

Enclosed is our previous order invoice. We want to duplicate the NC393 system, but no sensor or lens is rquired. We need one 450mm FPC cable pre-cofigured for the system, and a PoE power supply. Can you please ask your sales team to provide me with a new quote? Thank you.

Regards,

Dr Norman Xiong

Scientific Software Engineer
Australian Centre for Neutron Scattering

Australian Nuclear Science and Technology Organisation

Tel
Email
Web

+61 2 9717 7008
NORMAN.XIONG at ansto.gov.au<https://exchnlb-b51.ansto.gov.au/owa/redir.aspx?C=d49cfec1ed6d483489b2b97e6981cdd1&URL=mailto%3aNORMAN.XIONG%40ansto.gov.au>
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Important: This transmission is intended only for the use of the intended addressee. It is confidential to the intended addressee and may contain privileged information and or copyright material. If this email is not intended for your attention, any use, printing, storage , reproduction or further disclosure of this communication (including all attachments) is strictly forbidden. If you have received this transmission in error, please notify me by telephone or email and immediately delete all copies of this transmission as well as any attachments.

________________________________

From: Elphel Support <support-list at support.elphel.com<mailto:support-list at support.elphel.com>>
Sent: 27 February 2022 6:14 AM
To: XIONG, Norman <nxi at ansto.gov.au<mailto:nxi at ansto.gov.au>>; Elphel List <support-list at support.elphel.com<mailto:support-list at support.elphel.com>>
Subject: Re: [Elphel-support] Help on possible faulty FPC cable [SEC=OFFICIAL]

CAUTION, EXTERNAL EMAIL: This message has come from a source outside of ANSTO. Do not take action, click links or open attachments unless you recognise and trust the source of this email and know the content is safe. Please report suspicious emails to servicedesk at ansto.gov.au as an attachment.

Hello Norman,

I'm sorry you are having these problems. 450mm cables are close to the maximal usable length. Most likely the problem is related to the need to change delay in the sensor interface signals relative to clock, not the hardware problem with the cable. But it still can be the problem, of course.

What happens now - you can get a picture from port 0, and nothing at all on port 1? Black image, corrupted image, getting stuck trying to get an image? What happened before (when it was restoring after reboot)?

If you are getting corrupted image - can you please send it ?

Andrey

---- On Wed, 23 Feb 2022 02:46:52 -0700 XIONG, Norman <nxi at ansto.gov.au<mailto:nxi at ansto.gov.au>> wrote ----

Dear Elphel support team,

We have a NC393 system, with two sensors connected by 450mm FPC cables. Ever since

we put the system together in last July, port 1 was unstable and lost connection every a few

weeks. Rebooting the system would get the port back. However, recently that port was

totally lost. We can’t have it back by rebooting or reconnecting the camera to the cable.

We did a simple debugging by swapping sensors between the two FPC cables.  Both sensors

worked with port 0, and neither of them worked with port 1. So we presume the FPC cable

on port 1 is faulty. We didn’t open up the box to check the connection between the cable and

the board. I am looking for advice on what I should do next. Shall I open up the box to check

the internal connection or shall I simply order another FPC cable from you? And Is the cable

fragile?

Thanks.

Regards,

Norman Xiong

Software Engineer (Scientific)
NSTLI Neutron Scattering

Tel
Email
Web

+61 2 9717 7008
nxi at ansto.gov.au<mailto:nxi at ansto.gov.au>
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