OMAP-L138 LCD

1258021

Genius 5120 points

Other Parts Discussed in Thread: OMAP-L138

Hi,

I am trying to display a BMP file on LCD of the LogcPD EVM.

The header information of the file that I have got it below when I read using a Windows Application.

BMP Size = 0x4d42, hdr Sz = 0x5896, ofSt = 0x436
DIB hdr Size = 0x28, Width = 0xf0, Height = 0x5a, BPP = 0x8,

So, I moved to offset 0x436 and read till the end of the file. I have replaced the logo present in celogo.h file with this RAW data. I have modified the celogo_width and celogo_height parameters to 226 and 31 respectively.

When I display on LCD this RAW data I don't see the expected result.

Do I need to convert this data to RGB565 format or any other else?

Thank You & Regards,

GSR

over 14 years ago

0 1258021 over 14 years ago

Genius 5120 points

Hi,

I am trying to display the below bitmap image on the Logic PD EVM in WinCE EBOOT.

I was taking the raw data to a header file using Host PC Application and including the same in EBOOT. But the O/P is not as expected. What exactly am I doing wrong?

Do I have to convert the image with BPP = 6?

Thank You & Regards,

GSR

0 1258021 over 14 years ago in reply to 1258021

Genius 5120 points

Hi,

Some progress I have made on displaying OMAP-L138 above text image.

I have written a small program on Host PC which converts 24-bit image data to a RGB565 format.

Any how I failed in displaying the attached TI logo.

The above logo I have downloaded from Left Side Corner of the following url ti.com

I saved it as .bmp file on Host PC. using MS Paint again saved as 24-bit BMP file.

Got the RAW data from the below code which is written to a Header File

5722.24-Bit_To_RGB565.txt

After reflashing EBOOT I don't see the above logo instead I see a red color strip.

Thank You & Regards,

GSR

0 1258021 over 14 years ago in reply to 1258021

Genius 5120 points

Hi,

Thank You for reading my post so far.

There is an Issue in Host Application. I need to read the file in binary Mode.

After changing fopen API mode to "rb" I am able to display the TI Logo also.

Thank You & Regards,

GSR

0 Gary Tominovich over 14 years ago in reply to 1258021

TI__Genius 10960 points

Hi,

So just to confirm, you have resolved your issue? Thanks.

0 1258021 over 14 years ago in reply to Gary Tominovich

Genius 5120 points

Hi Gary Tominovich,

Thank You for writing.

Yes the issue is resolved.

Thank You & Regards,

GSR

0 Satyaprakash Mishra over 12 years ago in reply to 1258021

Intellectual 815 points

Thanks for you post , i is really useful.

I have one doubt, is your attached code will valid for any kind of resolution ?

for ex :1024x768.

Thanks

0 1258021 over 12 years ago in reply to Satyaprakash Mishra

Genius 5120 points

Hi Satyaprakash,

The code is written basically to replace the existing Bootloader Logo which comes along with OMAP-L138 BSP from TI/Adeneo.

The logo generated from app is not used for full screen display it is used to displayed in the center of the Display Panel.

Better you play with the code.

Regards,

GSR

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OMAP-L138 LCD