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usb remote help

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Offline Microfunguy

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Re: usb remote help
« Reply #10 on: 17 / May / 2009, 05:45:48 »
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Press your switch a bit longer.

The screen should blank and blue LED light.

Release switch to take photo.

A quick press-and-release puts camera into focus mode indefinitely, next longer press fires camera.

Does that work ?
« Last Edit: 17 / May / 2009, 05:48:55 by Microfunguy »
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Offline drewster

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Re: usb remote help
« Reply #11 on: 17 / May / 2009, 07:09:58 »
Seems a bit erratic,  sometimes button press for 1 second or less ,  it takes picture whilst button is depressed,  sometimes it just focuses (button kept pressed for several seconds),  no shutter when released,  occasionaly no respones to prolonged button press . (no blue led throughout)

Update:  my bullet remote seems a bit temperamental I think.  The spring assembly seems a bit delicately balanced.  If I jiggle the cable,  the picture takes.  when I get a chance I'll increase the voltage on the jig to nearer 5V & slightly increase the delay & see what happens.  Try later this evening
« Last Edit: 17 / May / 2009, 07:18:19 by drewster »
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G9, Ixus75
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Offline Microfunguy

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Re: usb remote help
« Reply #12 on: 17 / May / 2009, 07:17:45 »
I am a little suspicious of your switch .....

In ALT mode connect camera to PC using standard cable, not a home-made one.

'USB' should be displayed.

In normal mode, connect camera to PC, after ten second time-out it should take a photo.

Make sure you are using my SDM build.
« Last Edit: 17 / May / 2009, 07:19:37 by Microfunguy »
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Offline drewster

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Re: usb remote help
« Reply #13 on: 17 / May / 2009, 07:29:57 »
Hi,  I was editing my previous post during your previous reply.  Your right,  the switch is suspect.

I cifired up the G9 with your firmware,  put it in ALT mode,  no USB displayed on LCD.  Also taking off ALT mode & reconnecting USB,  no picture is taken?
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G9, Ixus75
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Offline Microfunguy

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Re: usb remote help
« Reply #14 on: 17 / May / 2009, 07:42:54 »
None of that makes sense if your USB port is working and is not damaged.

If there is a signal on USB V+ then USB must be displayed when in ALT mode.


« Last Edit: 17 / May / 2009, 07:55:48 by Microfunguy »
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Offline drewster

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Re: usb remote help
« Reply #15 on: 18 / May / 2009, 16:43:20 »
Hi,  I had a measure of success.  The shutter fired reliably with this code:

take_picture:
low 4
pause 200
high 4
pause 400
low 4
pause 200
return

If I introduce a delay.  as I wish after each picture is taken,  so

GOSUB take_picture
pause 100

then loop, the shutter no longer is fired  (focus occurs though)  Remove that pause after picture is taken,  then shutter firing is reliable again.  seems at first glance that it needs a uniform pulse?
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G9, Ixus75
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Offline Microfunguy

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Re: usb remote help
« Reply #16 on: 18 / May / 2009, 18:48:37 »
Download this version.

In bracketing menu, set focus mode to manual.
The word FAST will be displayed at top of screen.

In Picaxe :-

take_picture:
high 4
pause 30
low 4
return

That will take a photo.
Make sure that output 4 is initially low.


David
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Offline drewster

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Re: usb remote help
« Reply #17 on: 18 / May / 2009, 19:08:25 »
I don't have access to the camera at the moment,  but I realised that despite renaming the original DISKBOOT.BIN and copying your firmware onto the card,  the camera still booted into the previous version.  How could that be? 

Not sure of the mechanics of the boot,  but I remember another file is present called something like PS.FI2 if my memory servers me right. I tries removing the renamed file still boots to previous CHDK firmware.  This points to PS.FI2?  If I remove it,  the camera ignores your firmware
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G9, Ixus75
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Offline drewster

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Re: usb remote help
« Reply #18 on: 19 / May / 2009, 03:41:18 »
Hi,  OK, made the card bootable,  put card to Lock,  added an empy PS.IR2 for good measure,  now seeing your firmware.  I'll try this with the jig when I return from work. 
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G9, Ixus75
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Offline Microfunguy

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Re: usb remote help
« Reply #19 on: 19 / May / 2009, 05:23:39 »
The SDM DISKBOOT.BIN is normally installed on a bootable card.
The firmware-update method is not supported as sdminst.exe (provided in Common_files.zip from the website) creates the bootable card.
You do not need PS.FI2.

I am assuming that a 'low' on the Picaxe servo board outputs a low voltage.

A 30 msec pulse should be detected, if not increase by 10 msec increments.

It has been tested with two types of RC receiver equipment from gentLES.


David
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