the sx20 porting thread

SkyWalker9

bdasmith
Also, has anyone been able to determine why the picture is upside down when taken clockwise 90 degrees? it is normal when taken counterclockwise 90 degress.

I remembered that earlier this year @DandyOne also asked about this - here is a link to the discussion back then https://chdk.setepontos.com/d/4348/680

bdasmith

SkyWalker9

bdasmith
Also, has anyone been able to determine why the picture is upside down when taken clockwise 90 degrees? it is normal when taken counterclockwise 90 degress.
I remembered that earlier this year @DandyOne also asked about this - here is a link to the discussion back then https://chdk.setepontos.com/d/4348/680

I guess i should ask then if anyone was working on correcting how the exif data for the pictures is written so that the pictures are oriented properly.

ultimA

Hi bdasmith!
In the past two days I have seen similar random shutdowns on my camera (1.02d) too, though it happens randomly during initialization and does not depend on pressing a button. This was surprising to me, as I have never ever seen this happening before. So I was thinking about what has/could have changed. One of the possibilities that popped into my mind was cold. In these days I have been using my camera mainly outside and it is freezing and snowing here. So after making up this theory, I did notice that the crashes do not occure after staying inside a building for a longer period of time. Can you remember/confirm where you were using your camera when the crashes happened? Was it outside and was it cold there? Though it would still be strange, since without CHDK there are absolutely no crashes.

The problem about the orientation metadata has been discussed and confirmed before, even on the german forum and by myself too. It sure is annoying, but not annoying enough for me to put it into a visible place on my priority list. Sry. Has anybody seen these symptoms on another camera with the orientation sensor?

bdasmith

Thanks Ultima,

I haven't used my camera outdoors yet this winter, to busy with work unfortunately.

all the crashes on startup are while i am indoors. also, did not happen prior to version .1001

all the 900 range versions started up just fine.

edit: also just noticed version .1005...will reformat and give it a try and get back to you 😀

bdasmith

Hi Ultima

getting crashes indoor when turning on the camera...
the lens barrel extends and the screen come on, but then the camera turns off.

I reformatted my card and reinstalled chdk to make sure it was correct

using an 8GB class 6 card with 2mb partition boot and the rest fat32 for chdk files and storage.

edge overlay and zebra not enabled.

and like you mentioned, no initialization problems without CHDK.

Thanks for all your work. It is wonderful.

bdasmith

I solved it...

i made two 4gb partitions instead of the smalll boot/storage combo

no more crashes when turning on the camera

seems it often had a problem trying to open chdk on the large partition, and now that the files are on the same partition as the boot file it loads no problem...quite a bit faster too.

not the solution i was looking for exactly but not sure what else could be the problem.

xavan

I did an experiment to check the relationship between the quality factor and the effective video bit rate.
Any shooting beyond a bitrate of 20 Mb/s crashes after a few seconds and this is whatever the card speed (tested with class 2 and 6 sd cards).

Quality bit rate (Mb/s)
20 5,8
30 6,2
40 9,6
50 16
60 18
60 15,3
65 20,7
70 30
75 71,6
80 55
80 64

So it seems that CHDK does not allow to exceed the programmed bit rate (close to 25 Mb/s) . . .
It's a pity.

reyalp

xavan
So it seems that CHDK does not allow to exceed the programmed bit rate (close to 25 Mb/s) . . .
It's a pity.

In other words, Canon set their limit based on hardware limits, not some arbitrary restriction. This is a good thing 😉

NEZtron

First, I very much appreciate the effort and hard work they are doing to improve the characteristics of the SX20.
I have a SX20 (1.02b) with CHDK.
I boot the machine and it immediately turns off, the second attempt to start (happens randomly), I see that the ambient temperature is not the problem, use a FAT16 partition (boot) and 1 fat32 partition work in a Kingston 8GB Class 4.
Make format and partition reset does not solve the problem. In previous firmware versions (SX20-102b-0.9.9-000-full.zip) works well, (I prefer to use a single partition of work).
Hope this helps for them to solve the problem.
Anyway, CHDK works very well on this camera and I thank you for all the effort and time devoted to this firmware, is fantastic.
At another point to leave some photos to share with you.

bdasmith

NEZtron
First, I very much appreciate the effort and hard work they are doing to improve the characteristics of the SX20.
I have a SX20 (1.02b) with CHDK.
I boot the machine and it immediately turns off, the second attempt to start (happens randomly), I see that the ambient temperature is not the problem, use a FAT16 partition (boot) and 1 fat32 partition work in a Kingston 8GB Class 4.
Make format and partition reset does not solve the problem. In previous firmware versions (SX20-102b-0.9.9-000-full.zip) works well, (I prefer to use a single partition of work).
Hope this helps for them to solve the problem.
Anyway, CHDK works very well on this camera and I thank you for all the effort and time devoted to this firmware, is fantastic.
At another point to leave some photos to share with you.

this is the problem i have as well. but my firmware is 1.02d. glad someone else is having the problem, so its not just MY camera and/or sd card (see above posts) and thread
https://chdk.setepontos.com/d/5977

in the meantime i am using two 4gb partitions but would love to use one storage partition as well.
-Brad

SkyWalker9

bdasmith

NEZtron
First, I very much appreciate the effort and hard work they are doing to improve the characteristics of the SX20.
I have a SX20 (1.02b) with CHDK.
I boot the machine and it immediately turns off, the second attempt to start (happens randomly), I see that the ambient temperature is not the problem, use a FAT16 partition (boot) and 1 fat32 partition work in a Kingston 8GB Class 4.
Make format and partition reset does not solve the problem. In previous firmware versions (SX20-102b-0.9.9-000-full.zip) works well, (I prefer to use a single partition of work).
Hope this helps for them to solve the problem.
Anyway, CHDK works very well on this camera and I thank you for all the effort and time devoted to this firmware, is fantastic.
At another point to leave some photos to share with you.

this is the problem i have as well. but my firmware is 1.02d. glad someone else is having the problem, so its not just MY camera and/or sd card (see above posts) and thread
https://chdk.setepontos.com/d/5977

in the meantime i am using two 4gb partitions but would love to use one storage partition as well.
-Brad

@NEZtron & @bdasmith
I thought I might try testing this on a couple of my 8G cards, but I need some info on how each of you setup your cards:
- actual partition sizes
- which utilities/apps you used for the CHDK set up
- your SX20 FW version
- the build version you are using
- the brand of SD cards you used
- how you installed CHDK on the boot partitions (manually copied, auto, etc.)

If I can replicate the problem with the current build I'm using, then I'll test using with one of the older CHDK builds I saved.

NEZtron

Hi SkyWalker9 and Thanks, I happened to remark:

-Camera Canon SX20 IS Firmware 1.02B
-"Kingston 8GB SDHC Class 4
- Firmware SX20-102b-1023-0.9.9-full "Tue Jan 04 7:43:00 GMT 2011, build 0.9.9, revision 1023
- Use "sdminste.exe"to create partitions and set boot area with CardTricks144 in Fat 16 partition
- 2.0MB boot partition Fat16 and 7.4gb FAT32 partition work.
"In boot partition" diskboot.bin & ver.req " written manually
"In working partition" CHDK " written manually in the same root as the camera"DCIM ".
step-to simplify the configuration and service in the file "cchdk.cfg.tar.gz" in "http://www.megaupload.com/?d=AQUL2QBQ"
If there is anything else I can give me comment.

Regards Nestor

SkyWalker9

NEZtronI have a SX20 (1.02b) with CHDK...I boot the machine and it immediately turns off, the second attempt to start (happens randomly)...In previous firmware versions (SX20-102b-0.9.9-000-full.zip) works well...

@NEZtron
I tested using the following builds:
- sx20-102b-0.9.9-1023 (same version as yours)
- sx20-102b-1.1.0-DE-full_rev_390
- sx20-102b-1.1.0-full_rev_538

For each of the builds I tested using three different "CCHDK.CFG" files (the one in the installation, the one you provided, and my own); I ran the same tests on a SanDisk & a PNY 8G class 4 cards; I partitioned each of the cards using "sdminste.exe" to create & format both partitions and to make the smaller partition bootable. After all of that, I still was not able to duplicate the problem mentioned, so I'm not sure what is causing the problem. I once had a set of rechargeable batteries I was using that went bad that caused something similar, but that is probably not the problem in this case.

I noticed that you are using build sx20-102b-0.9.9-1023 from the "Autobuild Download" CHDK home page. I'd recommend avoiding the "Autobuild Download" because the builds are not necessarily stable yet..."An "Autobuild" version is a version of CHDK that is still under development...As with most beta software, not all new features have been fully tested..."

You might try using the latest "stable" SX20 build from the WIKI home page under "Supported Cameras". Following the links you will eventually get to the download page: http://forum.chdk-treff.de/autobuild.php
- Select "Powershot SX Series", "SX20", then your version "102b"
- Select "download"

Note: Before installing a new CHDK version, copy your last "CCHDK.CFG" and "badpixel.bin" files and the "SCRIPTS" folder to your PC. After installing the newer version you can then copy the "CCHDK.CFG" and "badpixel.bin" files and the "SCRIPTS" folder to the new versions' CHDK folder.

Good luck!

SkyWalker9

After a recent trip to Tennessee, I decided to try the Ricoh CA-1 cable switch with the SX20 CHDK. I had read the information on the SDM web page http://stereo.jpn.org/eng/sdm/ca1.htm and I read that someone had successfully used on the SX10 (https://chdk.setepontos.com/d/294/205 ), so I ordered one from Adorama (http://www.adorama.com/IRCCA1.html?sid=20090407212745594zb&searchinfo=Ricoh+CA-1 ) and tested with my SX20 (FW 1.02b). So far it has worked great - found no problems when using with the SX20 FW 1.02b CHDK.

The accessory's accompanying phamplet indicates that you should expect about 8,000 photos using an aklaline battery and about 3,000 using a manganese battery. The phamplet doesn't mention using a lithium battery or a rechargeable battery. The unit uses one AAA battery that steps up the voltage to trigger a proper response for the SX20 using CHDK. With the "On/Off" switch the battery should last a long time. While the basic device is made of black plastic instead of a stronger metal casing, I found that it is very light weight - and the battery is very easy to change because of it's slip off cover. Hope this helps others that might have been wondering if this unit will work with the SX20.

NEZtron

[flash=200,200][/flash]Hi SkyWalker9

Thanks for giving your time to do the tests!.
I took all your recommendations and did this test:

Download "http://forum.chdk-treff.de/autobuild.php"

SX20-102b-1.1.0-full_rev_540.zip - Problem
SX20-102b-1.1.0-full_rev_516.zip - Problem
SX20-102b-1.1.0-full_rev_503.zip - Problem
SX20-102b-1.1.0-DE-full_rev_479.zip - Problem 🙁
SX20-102b-1.1.0-DE-full_rev_453.zip - ok
SX20-102b-1.1.0-DE-full_rev_449.zip - ok
SX20-102b-1.1.0-DE-full_rev_382.zip - ok
down previous ---> ok

The version "rev_479" is the biggest problem. In the following versions but the problem still is more stable.
"Possibly the electronics of my camera is more sensitive to CHDK?.
"I agree a battery problem, I use NI-MH 2100 mAh "Fulltotal". Would have to prove "I" on startup.

Anyway, something happened between rev_453 and rev_479 "DE" unfortunately are the only versions that I have to compare.

I'm very happy with CHDK I hope it's a new track.
I see that "bdasmith" reports the same problem, sure some are and I think we will repair.

Regards Nestor

bdasmith

Nestor, thanks for taking the time to test all those builds with your Camera. I just haven't had the time yet, should beable to on the weekend....i will check with the same ones you listed to see if i get the same problem/resolution with those builds. Don't think it is batteries for me, as it is working fine on a 4gb fat16 partition, and boots right quick every time. its only with the small boot part and large storage part - maybe my cam doesn't like fat32?? don't know.

i hope we can resolve this soon too 😀

wally416

Hi all,

I have been playing around with the md_demo1.bas script from sx20-102b-0.9.9-959-full.zip and I have never been able to get the camera to trigger properly. If I move my hands in front of the camera, the boxes on the LCD trigger right away, but the camera doesn't fire for like 20 seconds.

Has anyone been able to get this to work on the sx20? I upgraded to the current sx20-102b-0.9.9-1030-full build. but no dice.

I'm hoping to use it as a motion trigger for an SLR and strobe setup firing over a PocketWizard radio, but it would need to be pretty quick (like shooting in the 1/200 range). Am I dreaming or this really possible?

Thanks very much for your help!

Microfunguy

wally416
it would need to be pretty quick (like shooting in the 1/200 range). Am I dreaming

Yes, unfortunately.

With SDM, we can take a photo 20 msec after an event (such as remote button release).
That is with the capture sequence at the screen-blanked stage, so no use for motion detection.

With the MD script, the reaction time is about 60 msec (1/16 sec).

ultimA

wally416
Hi all,

I have been playing around with the md_demo1.bas script from sx20-102b-0.9.9-959-full.zip and I have never been able to get the camera to trigger properly. If I move my hands in front of the camera, the boxes on the LCD trigger right away, but the camera doesn't fire for like 20 seconds.

Has anyone been able to get this to work on the sx20? I upgraded to the current sx20-102b-0.9.9-1030-full build. but no dice.

I'm hoping to use it as a motion trigger for an SLR and strobe setup firing over a PocketWizard radio, but it would need to be pretty quick (like shooting in the 1/200 range). Am I dreaming or this really possible?

Thanks very much for your help!

Not all MD scripts work on all cameras. Try another one, and one will definitely work. I know cause I've also found one that works some weeks before. Sry but I don't know which one it was.

SkyWalker9

ultimA

wally416...been playing around with the md_demo1.bas script from sx20-102b-0.9.9-959-full.zip and I have never been able to get the camera to trigger properly.
Not all MD scripts work on all cameras. Try another one, and one will definitely work. I know cause I've also found one that works some weeks before. Sry but I don't know which one it was.

Here are a few that work on the SX20:
From the CHDK "UBASIC/Scripts" page under "User-written Scripts" http://chdk.wikia.com/wiki/UBASIC/Scripts
- Fast Motion detection (MDFB-080914 by fudgey)
- Multipurpose Motion Detection (Uses Fingalo's firmware) http://chdk.wikia.com/wiki/UBASIC/Scripts:_Multipurpose_Motion_Detection

And this one by @fudgey I modified to work on my SX20
- Motion detect surveillance camera "mdCCTV"
https://chdk.setepontos.com/d/1596/8

« Previous Page Next Page »