Hello !
I am an undergraduate,and it is my first time studing Embedded Development.I want to do some about image process,so I have some question about it.
Firstly,How can i read a video from micro sd card ?Are there some restriction on the video format ?
Secondly,I studied an example about lcd displaying in starterware .The question is that if i want to change what show on lcd screem,what should i do or which API or Data array can change it ?
Thank you !
Regards,
Sai.
Hi USER,
USER says said:Firstly,How can i read a video from micro sd card ?Are there some restriction on the video format ?
For OMAPL138, You will get some basic example code to access the micro sd as a part of BSL test code. Those examples will demonstrate the read/write of memory blocks of mmc sd card.
On top of it, you may have to develop things like having a FATFS on the mmcsd and the FATFS driver , understanding and implementing the file access for video file format e.t.c.
USER says said:Secondly,I studied an example about lcd displaying in starterware .The question is that if i want to change what show on lcd screem,what should i do or which API or Data array can change it ?
In that example, they have a used an Image ( by converting a bmp image into an C array ). The name of the array is "image1"
You have to use the bmp2c utility program to convert the bmp into a header file.
>bmp2c.exe -16 E2E.bmp image.h
You can run the LCD starterware example on the OMAPL138 LCDK board through CCS. Once you are able to run it successfully, you can do a code walk through and understand the APIs used and try changing the code of lcd.
You will find the example located at "~\OMAPL138_StarterWare_1_10_04_01\build\armv5\cgt_ccs\omapl138\lcdkOMAPL138\raster" after you install the Starterware package.
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