SX260 HS Porting Thread - page 59 - DryOS Development - CHDK Forum
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SX260 HS Porting Thread

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Offline Microfunguy

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Re: SX260 HS Porting Thread
« Reply #580 on: 24 / March / 2013, 20:04:29 »
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Quote from: waterwingz on 24 / March / 2013, 19:58:18
I'm still thinking its the delay that's screwing up the rest of the capt_seq task timing. 

replace the get_usb_bit() loop with msleep(10);
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Offline waterwingz

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Re: SX260 HS Porting Thread
« Reply #581 on: 24 / March / 2013, 20:11:12 »
As quick look at the wiki for the sx260 show that the LED address I quoted above is definitely wrong.

Here's version with that line commented out :

sx260hs-101a-1.2.0-mod4


Note - that bad address is used in the debug_led() function too ...


Quote from: Microfunguy on 24 / March / 2013, 20:04:29
replace the get_usb_bit() loop with msleep(10);
Good idea - I'll try that next if fixing the LED does not do it.  I guess your theory is to yield while waiting for the remote to release ?
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Offline NormanA

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Re: SX260 HS Porting Thread
« Reply #582 on: 24 / March / 2013, 20:37:48 »
Good news and bad news. Still doesn't crash, but now it fires the focus light, waits a second or so, fires the preflash, then about 10 seconds later, takes a picture on its own.  Nothing happens when I remove the cord.
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Offline NormanA

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Re: SX260 HS Porting Thread
« Reply #583 on: 24 / March / 2013, 20:39:34 »
Oh yes, the same thing happens whether or not delay is enabled.
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Offline Microfunguy

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Re: SX260 HS Porting Thread
« Reply #584 on: 24 / March / 2013, 20:43:09 »
Quote from: waterwingz on 24 / March / 2013, 20:11:12

I guess your theory is to yield while waiting for the remote to release ?


In my own tests the quickest possible click of the remote (which you would not do) is at least 130 msec, so I guess you can yield for 100 msec.
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Offline waterwingz

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Re: SX260 HS Porting Thread
« Reply #585 on: 24 / March / 2013, 20:46:24 »
Quote from: NormanA on 24 / March / 2013, 20:37:48
Good news and bad news. Still doesn't crash, but now it fires the focus light, waits a second or so, fires the preflash, then about 10 seconds later, takes a picture on its own.  Nothing happens when I remove the cord.
EXCELLENT!   It was the stinking LED definition all along!!  The worst part is that I looked at it much earlier today and when I saw the same address used in the debug_led() routine I assume it must be correct.   DOH!!!!

The "10 seconds later" part is normal - the USB sync code will only wait 10 seconds for the USB voltage to go away.  Its kind of a safety thing to assure the camera doesn't hang for too long.  We've talked of removing or lenthening it but I have not got around to testing longer delays.

To prove this,  plug in the USB cable for a couple of seconds (to let the camera focus & preflash etc) and then pull the cable out.  It should take a picture right away.


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Offline NormanA

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Re: SX260 HS Porting Thread
« Reply #586 on: 24 / March / 2013, 20:58:11 »
Attached, is the ROMLog and the camera does take a picture right away, when the cord is removed right away after the first sequence is finished.
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Offline waterwingz

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Re: SX260 HS Porting Thread
« Reply #587 on: 24 / March / 2013, 21:00:04 »
Quote from: NormanA on 24 / March / 2013, 20:58:11
Attached, is the ROMLog and the camera does take a picture right away, when the cord is removed right away after the first sequence is finished.
I think we are done.  I'll clean up the code for the 1.00b to match the 1.00c & 1.01a and submit for update to the autobuild.   Thanks for hanging in while I chased this.
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Offline NormanA

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Re: SX260 HS Porting Thread
« Reply #588 on: 24 / March / 2013, 21:12:27 »
No problem, it might prove useful for me, down the line and I appreciate all the work everyone does, writing the code and debugging it.  I'm really glad to help.
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Offline NormanA

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Re: SX260 HS Porting Thread
« Reply #589 on: 26 / March / 2013, 09:54:21 »
Waterwingz,

I believe you were working from the code from ptpcam gui, but I could be mistaken, at any rate, I tried that program with my SX260 and the program would not recognize it, no matter what I did.  Just as I had given up, I decided to try it with my SD790 and it worked perfectly, every function, even to the point of turning the camera off.

Just thought you might like to know.
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