chdk in the DIGIC6 world - page 17 - General Discussion and Assistance - CHDK Forum

chdk in the DIGIC6 world

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Offline srsa_4c

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Re: DIGIC 4
« Reply #160 on: 17 / June / 2019, 19:12:23 »
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It seems to have a data(?) RAM area above 0xc0270000, length 0x2000. There is 'life' in it around offset 0x1900 (on ixus150), bytes are changing. There is no Xtensa code there.
GetISFirmVersion gets its data from reading around 0xc0271900...
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It's also possible that this MechaCPU is not Xtensa, it's just fed from the same ROM blob that has Xtensa code.
Wrong. Xtensa firmware is copied to RAM (from 0x60e000, size 0x80d8 bytes), in task_MechaCPUTransfer.

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Offline srsa_4c

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CHDK in the DIGIC7 world
« Reply #161 on: 07 / November / 2019, 18:56:43 »
That splash screen is the only sign of life at the moment. Will post more later.

Re: CHDK in the DIGIC7 world
« Reply #162 on: 08 / November / 2019, 07:37:49 »
That splash screen is the only sign of life at the moment. Will post more later.

Do you have an M100?
M100 100a, M3 101a, 2*G1x (101a,100e), S110 (103a), SX50 (100c), SX230 (101a), 2*S45,
Flickr https://www.flickr.com/photos/136329431@N06/albums
YouTube https://www.youtube.com/channel/UCrTH0tHy9OYTVDzWIvXEMlw/videos?shelf_id=0&view=0&sort=dd

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Offline srsa_4c

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Re: CHDK in the DIGIC7 world
« Reply #163 on: 08 / November / 2019, 13:30:12 »
Do you have an M100?
Yes, I took that photo.

For those who might be interested, I'm attaching the current state of the port. A bare minimum is implemented to allow using the GUI. The rest is mostly a copy of the g7x2 source. I'll open a porting thread when the port reaches a point in usability.
I have already seen a few cases of null pointer anomalies, thanks to the unusual memory map (the first 0x1000 bytes are unmapped and any access there causes an exception).


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Offline reyalp

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Re: chdk in the DIGIC6 world
« Reply #164 on: 08 / November / 2019, 15:35:22 »
Nice work  :D

I had been thinking about picking one up for D7 development since they are cheap on canon refurb, but figured I'd wait to see what comes up on black friday.
Don't forget what the H stands for.

Re: chdk in the DIGIC6 world
« Reply #165 on: 08 / November / 2019, 16:28:46 »
Nice work  :D
I can only agree
I had been thinking about picking one up for D7 development since they are cheap on canon refurb, but figured I'd wait to see what comes up on black friday.
I have paid 210€ for a new M100 plus 15-45. It was sold for a log tine for 222€. I would see what black Friday brings… 
M100 100a, M3 101a, 2*G1x (101a,100e), S110 (103a), SX50 (100c), SX230 (101a), 2*S45,
Flickr https://www.flickr.com/photos/136329431@N06/albums
YouTube https://www.youtube.com/channel/UCrTH0tHy9OYTVDzWIvXEMlw/videos?shelf_id=0&view=0&sort=dd

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Offline philmoz

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Re: CHDK in the DIGIC7 world
« Reply #166 on: 08 / November / 2019, 17:03:04 »
For those who might be interested, I'm attaching the current state of the port. A bare minimum is implemented to allow using the GUI. The rest is mostly a copy of the g7x2 source. I'll open a porting thread when the port reaches a point in usability.


Have you solved the D7 startup issues?
Would this be usable for the G7X2?


Phil.

CHDK ports:
  sx30is (1.00c, 1.00h, 1.00l, 1.00n & 1.00p)
  g12 (1.00c, 1.00e, 1.00f & 1.00g)
  sx130is (1.01d & 1.01f)
  ixus310hs (1.00a & 1.01a)
  sx40hs (1.00d, 1.00g & 1.00i)
  g1x (1.00e, 1.00f & 1.00g)
  g5x (1.00c, 1.01a, 1.01b)

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Offline srsa_4c

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Re: CHDK in the DIGIC7 world
« Reply #167 on: 08 / November / 2019, 17:17:11 »
Have you solved the D7 startup issues?
I think so, the camera seems stable. It's possible to do it worse (where it seems to work, but unexpected things happen), I was hunting non-existing bugs for weeks...
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Would this be usable for the G7X2?
That was my reason for publishing at this stage.


 

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