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SX20 IS firmware dump, I need help!

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Offline jan

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  • 48
  • PowerShot SX20 IS (100f)
    • cms -db
Re: SX20 IS firmware dump, I need help!
« Reply #70 on: 24 / September / 2009, 03:49:56 »
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There aren't any more leds in the range up to 0xC0220100, but I could try to search for leds in a bigger range.

I tested the new udumper yesterday, but it didn't work.

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Offline RaduP

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  • 856
Re: SX20 IS firmware dump, I need help!
« Reply #71 on: 24 / September / 2009, 13:27:04 »
I don't think you need more than the AF LED for dumping the firmware. I hope you have an oscilloscope though, you will need something to get the right timing.

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Offline jan

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  • 48
  • PowerShot SX20 IS (100f)
    • cms -db
Re: SX20 IS firmware dump, I need help!
« Reply #72 on: 29 / September / 2009, 12:39:09 »
No, I don't have a oscilloscope :(

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Offline yakabmarci

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  • 16
  • sx20is
Re: SX20 IS firmware dump, I need help!
« Reply #73 on: 06 / October / 2009, 15:00:52 »
Is the firmware available, or anyone working on it currently?
I've just bought an sx 20, I could also try dumping the firmare...


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Offline neszt

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  • 174
Re: SX20 IS firmware dump, I need help!
« Reply #74 on: 07 / October / 2009, 08:53:17 »
I just begun to work on it.
I just setting up the cross-compiler environment on a debian-lenny to make the correct files to copy to sd card, but it seems to be more complicated than i expected.. So if anyone already made the required files, these would help me (hi, jan :-) ).
The blinker hardware is ready in the meantime, so i only need the right prepared sd card with the blinker program.

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Offline neszt

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  • 174
Re: SX20 IS firmware dump, I need help!
« Reply #75 on: 07 / October / 2009, 11:38:49 »
My new sx20 firmware info:

Canon PowerShot SX20 IS
P-ID:31E4 PAL D


Firmware Ver GM1.00F
NoError
Jun 15 2009 15:28:22

Adj Ver.003.003

SubCPU Ver 1.02
Mecha Firm Ver. 2.03

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Offline neszt

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  • 174
Re: SX20 IS firmware dump, I need help!
« Reply #76 on: 07 / October / 2009, 13:40:07 »
It was not trivial to me, that starting the cam in play mode different, than starting the cam and switch to play mode. Ehhh..

Finally i success setting up memory card. My gren AF LED is blinking, sending the fw. It's time to grab with my new blinker hw via RS232. :D

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Offline jan

  • *
  • 48
  • PowerShot SX20 IS (100f)
    • cms -db
Re: SX20 IS firmware dump, I need help!
« Reply #77 on: 07 / October / 2009, 15:20:46 »
Finally i success setting up memory card. My gren AF LED is blinking, sending the fw. It's time to grab with my new blinker hw via RS232. :D

Very nice :)


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Offline neszt

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  • 174
Re: SX20 IS firmware dump, I need help!
« Reply #78 on: 08 / October / 2009, 07:49:02 »
I got the first sx20 dump file, but it is definitely worng because of wrong delay values. I am not professional in this, so any help would be appreciated.

There are two delay defines in the blinker's main.c:

#define DELAY232 132
#define DELAYGAP 100

I don't know what delay should i modify? Only one, or either together?
How to determine the right value(s) with an oscilloscope?

Re: SX20 IS firmware dump, I need help!
« Reply #79 on: 08 / October / 2009, 09:51:32 »
Dude wish I could help. Cant wait to get this on the 20. ;)

 

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