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Building a mult-camera rig

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Code: [Select]
C:\chdkptp>chdkptp -c -e"d CHDK/CCHDK4.CFG BACKUP.CFG"
connected: Canon PowerShot A2500 , max packet size 512
A/CHDK/CCHDK4.CFG->BACKUP.CFG
That's a much better.  You were able to download a file from the camera!

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ERROR: General Error
At this point,  the problem seems to be with chdkptp / multicam.lua.  When you run this,  make sure there is no script already running on the camera  (i.e. bcamRem.lua should not be running).

Let's see if reyalp has any suggestions?

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The cam shoot immediately , it doesn't wait to 5 volt to go off
Don't worry about that for now - it's the least of your worries.  We'll fix that later.
« Last Edit: 05 / July / 2014, 17:40:01 by waterwingz »
Ported :   A1200    SD940   G10    Powershot N    G16

i am getting deeper and deeper with the code

I made some test and the path to image on camera is different from that shown after setting

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!bc:download_last()

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1:Canon PowerShot A2500  = A/DCIM/149___07/ETC_1495.TMP/IMG_1495.JPG

the real path is A/DCIM/149___07/IMG_1495.JPG

in addition , It seems that I cant run it without bcamRem.lua is srunning

chck this error

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C:\chdkptp>chdkptp -i
___> ! bc=require('bcamHost')
___> ! bc:connect()
Connecting...
  1:Canon PowerShot A2500  = bus:\\.\libusb0-0005--0x04a9-0x3271 dev:bus-0 sn:26
0A8C4B8E0944929A0D1EAAE7EBC28E
___> !bc:download_last()
Downloading last image ...
WARNING: 1:Canon PowerShot A2500 : send getlastimg cmd failed: no script running

fault 2:        script not running
ERROR: call failed:C:\chdkptp\lua\bcamHost.lua:285: attempt to index field 'stat
us' (a nil value)
stack traceback:
        [string "bc:download_last()"]:1: in main chunk
        [C]: in function 'xpcall'
        C:\chdkptp\lua\cli.lua:566: in function <C:\chdkptp\lua\cli.lua:561>
        (...tail calls...)
        [C]: in function 'xpcall'
        C:\chdkptp\lua\cli.lua:244: in function 'execute'
        C:\chdkptp\lua\cli.lua:351: in function <C:\chdkptp\lua\cli.lua:342>
        (...tail calls...)
        C:\chdkptp\lua\main.lua:262: in main chunk
        [C]: in function 'require'
        [string "require('main')"]:1: in main chunk

1:Canon PowerShot A2500  = A/DCIM/149___07/ETC_1495.TMP/IMG_1495.JPG
I believe you are seeing the same problem I reported here :  http://chdk.setepontos.com/index.php?topic=11615 - down at the bottom of the first post.

I believe philmoz updated the sigfinder to get around that so you are going to need a new "custom" build.

I'll send you something in a little while.
Ported :   A1200    SD940   G10    Powershot N    G16


thx

the path issue is very strange since when checking it directly on SD card (taking out the SD card and connecting it to PC . there is not TMP folder ) also when using simple download / mdownload with default script I can get the images without the TMP folder , meaning A/DCIM/149___07/IMG_1495.JPG


the path issue is very strange since when checking it directly on SD card (taking out the SD card and connecting it to PC . there is not TMP folder ) also when using simple download / mdownload with default script I can get the images without the TMP folder , meaning A/DCIM/149___07/IMG_1495.JPG
Yup - all true.  But the multicam.lua script is using a function that returns an incorrect folder path so that's why it doesn't work.  Making a new build for you now.
Ported :   A1200    SD940   G10    Powershot N    G16

Re: Building a mult-camera rig
« Reply #96 on: 05 / July / 2014, 18:33:08 »
Here you go - try this : a2500-100a-1.3.0-3492-full.zip
Ported :   A1200    SD940   G10    Powershot N    G16

checking it , 5 min


IT IS WORKING !!!!!! - I am able to download the image

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___> !bc:download_last()
Downloading last image ...
  1:Canon PowerShot A2500  = A/DCIM/100_0607/IMG_0001.JPG

Tomorrow I will check it on 2 or more cameras (taking lots of time to format SD )

(Later we will figure out why it isnt wait till 5 volt drop before shooting picture)


Thank you waterwings for all your help !!!!!!!!!!

Later we will figure out why it isnt wait till 5 volt drop before shooting picture.



  • Using either your customized version of CHDK or the one from the autobuild,  make sure your remote settings are as shown above.
  • Start the camera with nothing attached to the USB port.
  • Get into shooting mode (i.e. lens extended and ready to take a picture).
  • Plug a USB cable between your PC and the camera.
  • When the cable is first attached,  the camera should focus, start to take a picture, and then stop with the screen blanked
  • Unplug the USB cable from the camera.
  • The camera should complete the taking a picture and the screen should no longer be blank.

If that does not work,  there is something wrong with where the hook for wait_until_remote_button_is_released() has been inserted in capt_seq.c.   I can't tell from reading the A2500 porting thread if it was actually tested.

Ported :   A1200    SD940   G10    Powershot N    G16

 

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