CHDK PTP interface

leedsgreen

Whoever,

I will happily do that and post in 'Creative uses'. I have actually posted there a few times in the past (after I first got continuos shooting script working) but this, as you say, is another step forward. Clouds, the bane of the astrophotographer's life*, are currently 'sitting' on top of Leeds, but when they shift and the moon is back up (my primary target), I'll post some results.

BTW I've noticed that when I reopen CHDKcam, the scripts I have assigned F keys no longer work. That is, only the first 'line' of the script is saved, the rest is deleted. Do you know how to stop this? (Save me re-typing each time).

Nick

*Of course, enjoying landscape phototgraphy as well, I do like clouds!

whoever

leedsgreen
BTW I've noticed that when I reopen CHDKcam, the scripts I have assigned F keys no longer work. That is, only the first 'line' of the script is saved, the rest is deleted. Do you know how to stop this? (Save me re-typing each time).

That's a question to ewavr 😉

ewavr

leedsgreen

BTW I've noticed that when I reopen CHDKcam, the scripts I have assigned F keys no longer work. That is, only the first 'line' of the script is saved, the rest is deleted.

Oops! You can enter several lines of text in macro editor? How?
This editor is designed for single-line short scripts. You can separate several lua operators in one line by semicolon ( ; ).

leedsgreen

ewavr,

Thanks. Your right, I can't enter multiple lines. What happened was when I copied all lines from the script builder window (bottom left) they appeared as a long string, seperated by || (thingies, only bolded). However, when I went back in, anything after the first || dissapered. However, I have now used semicolon as you suggested and all is working.

Once again, thanks for all this development. Much appreciated etc. 😁

Nick

JMD

Wow! This is great stuff. I would love to try this with my SX1, version 2.01a. Does anyone have a build for the SX1.

Thanks!

Marcio Lima

I have included PTP code for SX200 camera and try to start it. Nothing happens.
When I connect the USB cable and CHDK is loaded the screen stay blank and the PTP USB device in windows is not enumerated. When I do not load CDK (unlocking the SD card) the PTP device is enuareted and I can use PTPCAM.

Can anybidy have a clue on what may be happening ?

Thanks

ewavr

@Marcio Lima:

Under Windows?
Screen should not become a black when USB cable is connected (this means that standard PTP driver already connected to camera and libusb driver cannot connect to it). Try to disable all event handlers in camera properties in windows explorer and also "Canon camera access library" service.

Marcio Lima

Folkd

Can anyone help me to verify if the correct entry point for the function of add_ptp_handler is 0xFF9EF744 on SX200 IS cameras ?

The camera stucks when I call this function and I don´t have IDA PRO to hack the firmware to find it. I´m sure the function does not return from the call beacuse I include some debug code to test it.

Thanks
Marcio

Microfunguy

For firmware 100c I think it is 0xFFA125D4.

Which firmware do you have ?

David

Marcio Lima

David

It worked! Thanks!

Marcio

ADamb

Marcio,

What exactly are you trying to do?
SX200IS 100c is already included in PTP patch, overlay colors are wrong, but everything else is OK.

Marcio Lima

HI Adamb

I´m porting to the SX200 IS camera. It is starting to work now.
I also want to include some extra features like Remote Zoom and Live cappture. If there is anybody who could give me information about these features I do appreciate.

Thanks

Marcio Lima

I´m porting PTP to SX200 IS.
I tested the functions an it sees that the functio to switch from Play to Capture mode and vice versa is not working.

Can anybody tell me the correct address for the functions PB2Rec and Rec2PB in the SX200 is camera?

Thanks

Microfunguy

I recently got this from the published DIFF file:

NHSTUB(PB2Rec, 0xFF87D780) // via aAcPb2rec
NHSTUB(Rec2PB, 0xFF87EE50) // via aAcRec2pb

David

Marcio Lima

It seems not to work after aplying the patch. How can I be sure it works ?

fe50

Marcio Lima
It seems not to work after aplying the patch. How can I be sure it works ?

It works for the SX200 1.00c:

ADamb
Thanks, now it is OK.

reyalp

First try at a540 support.

Note, I added add_ptp_handler to sig_ref_vxworks_1.txt, seems to be a good match.

Live view works, switch to rec (using post_levent...) worked.
Trying to shoot after switch to rec crashed the cam.

ASSERT!! OperTrns.c Line 594
Occured Time  2009:12:24 19:05:20
TCB: 00212218
Task: tPTPSessio
SP: 0x002120C0
StackDump:
0x00000000
...

(at FFE4EB1C)

I am thinking about making a PTP branch in the main SVN. It would make it easier to keep in sync with the trunk (I have no problem with merging my trunk checkins to a branch). Or just put it in the trunk and make it compile time optional ?

edit:
I did manage to take a picture without crashing, turning off live view and bitmap updates first.

fe50

reyalp
I am thinking about making a PTP branch in the main SVN. It would make it easier to keep in sync with the trunk (I have no problem with merging my trunk checkins to a branch). Or just put it in the trunk and make it compile time optional ?

Since it seems that this will have no negative side effects for the CHDK main functionality (at least i didn't notice any), i'd prefer to have it in the trunk, compile time optional - sooner or later PTP will be also another "usual" feature beside all others, so IMO it's simply consequent to have it in the main source tree as early as possible.

BTW - some things i've noticed while testing/using PTP on the SX10 101a (Win XP sp3, no Canon services):

Connected to an USB hub it works reliable the most time - connected directly (on board USB, nVidia GeForce 8200 chipset) it behaves very instable, the connection mostly get lost after some seconds.
Switching between rec and playback mode works reliable, also all the other things like shooting, zoom & focus, setting shooting mode, script execution, controlling with the NUM keys and so on, the framerate is ~8 fps with on board chipset graphics.
(havn't tested the webcam feature yet)

Marcio Lima

I applied the PATCH but I still don´t get the swtiching between Play and Rec mode. The SX200 IS camera reply OK but nothing changes.

Quote from fe50

•Switching between rec and playback mode works reliable, also all the other things like shooting, zoom & focus, setting shooting mode, script execution, controlling with the NUM keys and so on, the framerate is ~8 fps with on board chipset graphics.

I don´t see this features in the PATCH I applied. Are you using Scripts for doing this ?

fe50

Marcio Lima
I applied the PATCH but I still don´t get the swtiching between Play and Rec mode. The SX200 IS camera reply OK but nothing changes.
...
I don´t see this features in the PATCH I applied. Are you using Scripts for doing this ?

No; on the SX10 this works with ewavr's newest binaries out of the box; try the latest patch & chdkcam app from ewavr's DL site.

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