Resurrecting Pentax firmware hacking

PiDicus Rex · 05-29-2015, 10:09 PM

Originally posted by bootcoder

Nikon D800

Ahhh,... the one that does the uncompressed clean feed output.

Which is basically proof that the video firmware on the Pentax's is botched, as the hardware used is capable of doing the job properly.

Volker76 · 05-31-2015, 04:13 AM

Originally posted by PiDicus Rex

Ahhh,... the one that does the uncompressed clean feed output.

Which is basically proof that the video firmware on the Pentax's is botched, as the hardware used is capable of doing the job properly.

nope, it does not proof anything. The chip is just one element. There are many others influencing the capabilities. Like RAM, how that RAM is connected, which io pins connected to what, IO in general...

thibs · 06-01-2015, 01:08 AM

Originally posted by Volker76

nope, it does not proof anything. The chip is just one element. There are many others influencing the capabilities. Like RAM, how that RAM is connected, which io pins connected to what, IO in general...

Huh, and sensor guys. Don't forget the sensor.

Danas_Anis · 06-02-2015, 02:29 AM

Originally posted by thibs

Huh, and sensor guys. Don't forget the sensor.

Ricoh Pentax use Sony sensors, I do believe majority of them a very capable video sensors, I am more than sure DSLRs like Pentax K30 and up has sensors that are a lot more capable for video than Pentax devs let them be.

thibs · 06-02-2015, 01:49 PM

Originally posted by Danas_Anis

Ricoh Pentax use Sony sensors, I do believe majority of them a very capable video sensors, I am more than sure DSLRs like Pentax K30 and up has sensors that are a lot more capable for video than Pentax devs let them be.

Probably indeed but comparing a D800 to a K-S1 and concluding the culprit is the chipset (or its programing) is far fetched to say the least.
The sensor may not be able to output the same way as D800 sensor. It may be too but IMO this is jumping to conclusion.

bootcoder · 06-09-2015, 05:40 PM

Is this message really pinky on K-S1 ?

thibs · 06-10-2015, 10:13 PM

Originally posted by bootcoder

Is this message really pinky on K-S1 ?

Isn't this pink usually used for transparency ?

bootcoder · 06-11-2015, 04:36 AM

Originally posted by thibs

Isn't this pink usually used for transparency ?

Can you, please, provide more information on this ?
Anyway, K-S1 TFT seems to have resolution 720x480.

wwortel · 06-11-2015, 08:12 AM - **1 Like**

For the K-S2 exactly same procedure as described in this thread for the K-S1 but the model specific filename needs to be:
00077860.551

File name DEVELOP.MOD and contents of both files can be same as for K-S1

thibs · 06-11-2015, 11:44 AM

Originally posted by bootcoder

Can you, please, provide more information on this ?
Anyway, K-S1 TFT seems to have resolution 720x480.

Well it is quite old in my poor brain.
As I recall, in they day there was software to edit Icons in Windows (when guys really took time doing such things) like MicroAngelo (Iconedit or something) and I remember the pink color in the background was in fact used for coding transparency.
What I'm almost certain is that, from specs, bitmap do not support transparency. Hence you need to set a color to be treated as transparent.
Usually it was (or is?) 255,0,255 or #FF00FF if you prefer.

bootcoder · 06-11-2015, 08:28 PM

Ok, I changed RGB to BGR. But still pinky at some places.
If it is transparent, then previous screenshot(loading) would not display anything at all

EDIT: pink word used FF 00 FF 00

bootcoder · 07-05-2015, 03:51 AM

Enabling "Serial input" on K-S1 doesn't make any difference. There are ~165 commands in serial shell, but only one command ("?") is possible to use in normal firmware binary.

Wompa · 08-20-2015, 11:44 AM

Any news on a custom firmware?

ZombieArmy · 08-20-2015, 06:44 PM

Makes me want to learn this stuff and put in the effort myself. Would be nice to enable astrotracing on the k-01 one day.

protocold · 08-21-2015, 12:28 PM

I have confirmed that changing REGION CODE in debug enable other languages in the menu:

00 - this enable all languages
01 - this enable only European languages
02 - this enable only English, Korean, Chinese
03 - this enable only English, Japanese

06-09-2015, 05:40 PM	#516
bootcoder Banned Join Date: Oct 2014 Posts: 93	Is this message really pinky on K-S1 ? Attached Images Last edited by bootcoder; 06-10-2015 at 02:55 PM.

06-11-2015, 04:36 AM	#518
bootcoder Banned Join Date: Oct 2014 Posts: 93	Originally posted by thibs Isn't this pink usually used for transparency ? Can you, please, provide more information on this ? Anyway, K-S1 TFT seems to have resolution 720x480. Last edited by bootcoder; 06-11-2015 at 06:06 AM.

06-11-2015, 08:12 AM - 1 Like	#519
wwortel New Member Join Date: Jun 2015 Posts: 12	Debug Menu K-S2 For the K-S2 exactly same procedure as described in this thread for the K-S1 but the model specific filename needs to be: 00077860.551 File name DEVELOP.MOD and contents of both files can be same as for K-S1

06-11-2015, 08:28 PM	#521
bootcoder Banned Join Date: Oct 2014 Posts: 93	Ok, I changed RGB to BGR. But still pinky at some places. If it is transparent, then previous screenshot(loading) would not display anything at all EDIT: pink word used FF 00 FF 00 Attached Images Last edited by bootcoder; 06-12-2015 at 06:18 PM.

07-05-2015, 03:51 AM	#522
bootcoder Banned Join Date: Oct 2014 Posts: 93	Enabling "Serial input" on K-S1 doesn't make any difference. There are ~165 commands in serial shell, but only one command ("?") is possible to use in normal firmware binary. Last edited by bootcoder; 07-05-2015 at 04:16 AM.

05-29-2015, 10:09 PM	#511
PiDicus Rex Veteran Member Join Date: May 2013 Location: Melbourne, Australia Posts: 1,381	Originally posted by bootcoder Nikon D800 Ahhh,... the one that does the uncompressed clean feed output. Which is basically proof that the video firmware on the Pentax's is botched, as the hardware used is capable of doing the job properly.

05-31-2015, 04:13 AM	#512
Volker76 Senior Member Join Date: Nov 2014 Posts: 211	Originally posted by PiDicus Rex Ahhh,... the one that does the uncompressed clean feed output. Which is basically proof that the video firmware on the Pentax's is botched, as the hardware used is capable of doing the job properly. nope, it does not proof anything. The chip is just one element. There are many others influencing the capabilities. Like RAM, how that RAM is connected, which io pins connected to what, IO in general...

06-01-2015, 01:08 AM	#513
thibs Pentaxian Join Date: Jun 2007 Location: Belgium Photos: Albums Posts: 7,001	Originally posted by Volker76 nope, it does not proof anything. The chip is just one element. There are many others influencing the capabilities. Like RAM, how that RAM is connected, which io pins connected to what, IO in general... Huh, and sensor guys. Don't forget the sensor.

06-02-2015, 02:29 AM	#514
Danas_Anis Senior Member Join Date: Jan 2013 Photos: Gallery \| Albums Posts: 198	Originally posted by thibs Huh, and sensor guys. Don't forget the sensor. Ricoh Pentax use Sony sensors, I do believe majority of them a very capable video sensors, I am more than sure DSLRs like Pentax K30 and up has sensors that are a lot more capable for video than Pentax devs let them be.

06-02-2015, 01:49 PM	#515
thibs Pentaxian Join Date: Jun 2007 Location: Belgium Photos: Albums Posts: 7,001	Originally posted by Danas_Anis Ricoh Pentax use Sony sensors, I do believe majority of them a very capable video sensors, I am more than sure DSLRs like Pentax K30 and up has sensors that are a lot more capable for video than Pentax devs let them be. Probably indeed but comparing a D800 to a K-S1 and concluding the culprit is the chipset (or its programing) is far fetched to say the least. The sensor may not be able to output the same way as D800 sensor. It may be too but IMO this is jumping to conclusion.

06-10-2015, 10:13 PM	#517
thibs Pentaxian Join Date: Jun 2007 Location: Belgium Photos: Albums Posts: 7,001	Originally posted by bootcoder Is this message really pinky on K-S1 ? Isn't this pink usually used for transparency ?

06-11-2015, 11:44 AM	#520
thibs Pentaxian Join Date: Jun 2007 Location: Belgium Photos: Albums Posts: 7,001	Originally posted by bootcoder Can you, please, provide more information on this ? Anyway, K-S1 TFT seems to have resolution 720x480. Well it is quite old in my poor brain. As I recall, in they day there was software to edit Icons in Windows (when guys really took time doing such things) like MicroAngelo (Iconedit or something) and I remember the pink color in the background was in fact used for coding transparency. What I'm almost certain is that, from specs, bitmap do not support transparency. Hence you need to set a color to be treated as transparent. Usually it was (or is?) 255,0,255 or #FF00FF if you prefer.

08-20-2015, 11:44 AM	#523
Wompa Junior Member Join Date: Dec 2007 Location: Sweden, Västerås Posts: 25	Any news on a custom firmware?

08-20-2015, 06:44 PM	#524
ZombieArmy Pentaxian Join Date: Jun 2014 Location: Florida Posts: 3,210	Makes me want to learn this stuff and put in the effort myself. Would be nice to enable astrotracing on the k-01 one day.

08-21-2015, 12:28 PM	#525
protocold Junior Member Join Date: Jun 2009 Posts: 44	I have confirmed that changing REGION CODE in debug enable other languages in the menu: 00 - this enable all languages 01 - this enable only European languages 02 - this enable only English, Korean, Chinese 03 - this enable only English, Japanese

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