access to uboot menu

[aquadran]

9 byte protocol I found in kernel source code in linux-r011/init/MicomCtrl_mod.c code.
It has also commented out version which run from as userspace command (I compared with dissassembled MicomCtrl).
"
...
fd = SerialInit("/dev/ttyS0");
databuff[0] = 0xff;
databuff[1] = 0xff;
...
databuff[2] = ctrl;
databuff[8] += databuff[2];
...
WriteSerialData(fd, databuff, 9);
"

You can't find how other side is implemented in sources as it talks to hardware. I think we could find some info exeDSP like examples how it talks.
Btw hardware, I was impressed TV has 3D gfx accellerator , unfornatelly exeDSP doesn't have any examples how to use

[aquadran]

I didn't find much in exeDSP, I found only some simliar thing to MicomCtrl, but how things are there it's diffrent story. This exe and other included libraries are so huge. I think I'll put away this thing for now.

[dynamic1969]

Hi Pawel,

a creative break once in a while is good to create new ideas

again uart mode, from above post " 'UART Select' from 'Wall Mount' to 'STi' ". Must be something what trigger enable uart0 as normal serial port.

This is worth a try ... as my suspicion is, that there must be a way to switch between the different serial ports.
I should be able to try a couple switch this weekend ...

Regards
dynamic

[aquadran]

Hi Pawel,

a creative break once in a while is good to create new ideas

True
So I started to look into custom native apps launched from Content Library, however still solving issues with build toolchain on mac os x.

[aquadran]

Hi Guys!

I've been studying the bootloader and it seems that there is a special character that initiates (debug mode maybe?) something on power on.

If anyone wants to try it:

Send "~" (without quotes) in minicom (at 115200n81) to the TV when you see ONBOOT. You've got about half a second before it loads the kernel...

I havent tested it so I do not know how risky this operation is!I would appreciate if anyone dared try it and would post the minicom log. As the U-Boot does not expect any special character on startup, I suspect that this "~" will turn on debug mode in the bootloader and in u-boot...

Let me know if it worked.. or not...

Good luck!

Robbiesz

PS: Dont blame me if it fries your TV! I've warned you...

uboot expect special character but io serial port seems disabled, but it's last third bootloader.
in which bootloader you found that '~' ? first or second ?
I tried to find anything on one of them don't remember which one. Seems no reference to serial io.
And what tv you look ? where you got this ONBOOT ?
From what I know nothing show up before kernel stage and only anything show up is when tv is on debug mode.

[dynamic1969]

Hi robbiesz,

this is truly great news !!! Congrats !
This opens up doors to a totally new set of modifications and ehancements!

Thanks for discovering this and for sharing it with the community!

btw.I remember to have seen a setting in the Service Menu for disabling the watchdog. If that doesn't work, we shall also be able find a workaround for that

Regards
dynamic