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Building a mult-camera rig

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Online reyalp

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Re: Building a mult-camera rig [was: Re: Battery third (temp) terminal as multipurpose analogue inpu
« Reply #70 on: 04 / July / 2014, 00:33:20 »
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Quote from: novsela on 03 / July / 2014, 18:07:42
it is very simple to shoot but (must be but :) ), the images that are copied to pc are corrupted while it is fine when checking it on SD card . why is that  ? appreciate your assistance 
A good first step to be to try to determine what specifically is wrong with the files. Are the zero size? Assuming they aren't zero size,  look at the contents with a text or hex editor.
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Offline novsela

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Re: Building a mult-camera rig [was: Re: Battery third (temp) terminal as multipurpose analogue inpu
« Reply #71 on: 04 / July / 2014, 00:39:02 »
It is zero size file  :(

What shall I do ?
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Online reyalp

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Re: Building a mult-camera rig [was: Re: Battery third (temp) terminal as multipurpose analogue inpu
« Reply #72 on: 04 / July / 2014, 01:13:00 »
Quote from: novsela on 04 / July / 2014, 00:39:02
It is zero size file  :(

What shall I do ?
You should try to figure out where specifically it is failing. chdkptp should generate some kind of error message if a download fails.

Waterwingz suggestion before my post is also good (though in chdkptp terminology, he means download, not upload)

As I've said before, you have undertaken a complex technical project. You will need to be able to debug stuff. I'm not saying you shouldn't ask here, but you can't expect us to solve every problem for you.
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Offline novsela

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Re: Building a mult-camera rig [was: Re: Battery third (temp) terminal as multipurpose analogue inpu
« Reply #73 on: 04 / July / 2014, 02:19:49 »
Got your point

Can u tell me how to see chdk logs /debug ?

Thx
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Offline waterwingz

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Re: Building a mult-camera rig [was: Re: Battery third (temp) terminal as multipurpose analogue inpu
« Reply #74 on: 04 / July / 2014, 10:37:03 »
Quote from: novsela on 04 / July / 2014, 02:19:49
Can u tell me how to see chdk logs /debug ?
Assuming you are using the command line commands I posted above,  what does it say on the screen when you execute each one ?

FYI : I rebooted into Windows 7,  downloaded the most recent version of chdkptp and retested the two scripts.  From a "DOS Box" command line, where you have changed to the chdkptp directory, copied the bcamHost.lua file to the lua subdirectory, and launched bcamRem.lua on each camera ,  the relevant commands are :

Code: [Select]
chdkptp>chdkptp.exe -e"! bc=require('bcamHost') bc:connect() bc:cmdwait('shoot')"
chdkptp>chdkptp.exe -e"! bc=require('bcamHost') bc:connect() bc:download_last()"
The uploaded images were all valid as well. 

Note that you will need to set the @param value on each of your cameras to a unique number other than zero them if you wish to use the image sorting & filing scheme I'm working on.  The "Unknown" large text area on the screen shot you posted indicates you have not done so yet.
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Offline novsela

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Re: Building a mult-camera rig [was: Re: Battery third (temp) terminal as multipurpose analogue inpu
« Reply #75 on: 04 / July / 2014, 10:56:28 »
How to set camera unique name ? U r right it is unknown at the moment
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Offline waterwingz

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Re: Building a mult-camera rig [was: Re: Battery third (temp) terminal as multipurpose analogue inpu
« Reply #76 on: 04 / July / 2014, 11:24:35 »
Quote from: novsela on 04 / July / 2014, 10:56:28
How to set camera unique name ? U r right it is unknown at the moment


Although that is almost certainly not what is causing your images to have zero file length.

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Offline novsela

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Re: Building a mult-camera rig [was: Re: Battery third (temp) terminal as multipurpose analogue inpu
« Reply #77 on: 04 / July / 2014, 11:51:04 »
Thx

Another question, inside chdkptp I can see list of cameras connected , serial & parellel ID  ,the issue is all cameras parallel ID is identical

How can I change it ?
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Offline waterwingz

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Re: Building a mult-camera rig [was: Re: Battery third (temp) terminal as multipurpose analogue inpu
« Reply #78 on: 04 / July / 2014, 13:14:22 »
Quote from: novsela on 04 / July / 2014, 11:51:04
Another question, inside chdkptp I can see list of cameras connected , serial & parellel ID  ,the issue is all cameras parallel ID is identical
Where do you think you are seeing serial & parrallel ID's ?   I'm not a low level USB expert but I don't think there is any such thing with USB ports.   I suspect you are looking at the idVendor and idProduct fields - which should all be exactly the same if you are using all the same cameras.

Quote
How can I change it ?
Why do you think you want to?
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Offline novsela

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Re: Building a mult-camera rig [was: Re: Battery third (temp) terminal as multipurpose analogue inpu
« Reply #79 on: 05 / July / 2014, 02:56:15 »
waterwings -

I think the problem might be related to win8 (attached pic with the error "GENERAL ERROR") (even when using single camera)

Quote
C:\chdkptp2>chdkptp.exe -e"! bc=require('bcamHost') bc:connect() bc:download_las
t()"
Connecting...
  1:Canon PowerShot A2500  = bus:\\.\libusb0-0003--0x04a9-0x3271 dev:bus-0 sn:26
0A8C4B8E0944929A0D1EAAE7EBC28E
Downloading last image ...
  1:Canon PowerShot A2500  = A/DCIM/149___07/ETC_1401.TMP/IMG_1401.JPG
ERROR: General Error


I am downloading win7 iso and hope to run it with vmware workstation to verify it is win8 issue

regarding the serial / parallel ,
Quote
C:\chdkptp2>chdkptp -i
___> list
___> list
___> list
-1:Canon PowerShot A2500  b=bus-0 d=\\.\libusb0-0003--0x04a9-0x3271 v=0x4a9 p=0x
3271 s=260A8C4B8E0944929A0D1EAAE7EBC28E

Serial - s=260A8C4B8E0944929A0D1EAAE7EBC28E
Parallel - p=0x3271

All camera share the same Parallel ID (p=0x3271) , i would like to change the parallel ID
I saw some post from HH each he modifided something in the registry to overcome this ,
but I dont know if it related or not


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