Is this LQ035Q7DB03 or LQ035Q7DB02 LCD ??

This is LQ035Q7DB03 LCD which is nothing but LQ035Q7DB02 without touchscreen capability. So basically LQ035Q7DB02 interfacing would match the one we are doing.

firt try to do

#losh> video-open 8 16

#losh> draw-test

You should be able to see test image on screen. Then see another post where I have mailed settings for framebuffer driver in linux environment.

cheers
ajit

I tried this before:
#losh> video-open 8 16

#losh> draw-test

But I dont see any response on the LCD after draw-test or video-clear commands. Also when i do a video-init or video-open I dont get a clear screen, it is somewhat distorted with lines of different colours. And the screen responds for no other command. Thats why I asked what voltage should be given to the VEE and VDD on the LCD. For which right now I am connecting LCD_VEEEN and LCD_VDDEN(both 3v) from the board.

regards,
arjun

"Also when i do a video-init or video-open I dont get a clear screen, it is somewhat distorted with lines of different colours." Looks ok to me. I too see same when I do video-open 8 16. But draw-test has effect in my case.

Another thing, I got LCD from logic itself. It comes with a colorful connector "wire-band". I just had to put this in proper slot on my board and it worked.

I think the problem for us is the power supply unit for LCD, since we are interfacing on our own.

can u give ur personal id?

Feel free to contact me at arjun.kv@7lf-tech.com

did u check my mail?

Is LQ035Q7DB03 supported by LoLo? Because I am only able to video-open the lcd and then nothing works. All connections look to be alright and power supplies are proper.

losh> config v
dev_config->screen[0]: test x: 320 y: 240
SDC_COM_CONF: 00000201
SDC_GB_POS: 0020000b
SDC_HOR_CONF: 35120000
SDC_VER_CONF: 094c0001
SDC_SHARP_CONF_1: 00000000
SDC_SHARP_CONF_2: 00000000
DI_DISP_IF_CONF: 00000000
DI_DISP_SIG_POL: 04000000
DI_DISP3_TIME_CONF: 02c00140
Frame Buffer: deadbeef
dev_config->screen[1]: available
dev_config->screen[2]: available
dev_config->screen[3]: available
dev_config->screen[4]: available
dev_config->screen[5]: available
dev_config->screen[6]: available
dev_config->screen[7]: available

I get the above message.
Any help would be really appreciated.

Arjun.KV,

Both the LQ035Q7DB02-10 and -20 are supported in LoLo on the i.MX31.

The -10 is display #6 and the -20 is display #8. The -20 has an ASIC as can be seen by typing "help video-open".

Please verify which version you have w/o the touchscreen.

Thanks

Richard

I am able to run under the display #6. The problem i was facing was related to wiring.

Thanks
Arjun