omapl138 read data from micro sd

USER

Other Parts Discussed in Thread: TMDSLCDK138, OMAPL138

Hello !

I'm going to using omapl38 to process image on TMDSLCDK138 .If I store a video in sd card , how can I read this video from sd card and process it ? Can you give me an example ?Thank you !

Regards,

Sai.

over 9 years ago

0 Shankari G over 9 years ago

TI__Mastermind 43955 points

Hi Sai,

For OMAPL138 LCDK, there is a face detect demo available which receives the video input and detect the human face and draw a rectangle on the face when the video is streamed on the display.

You can take that demo example and modify it in sucha way that it reads the video from SD card instead of through video input.

To make a hands-on on the face detect demo, recommend you to refer to
processors.wiki.ti.com/.../C6748_Development_Kit_(LCDK)

0 USER over 9 years ago in reply to Shankari G

Intellectual 580 points

But the question how to read video from SD card

Regards,
Sai.

0 Prabhakar Lad over 9 years ago in reply to USER

Guru 11260 points

Hello,

Follow the link [1], which has a example for copying one file to another.

[1] www.techytalk.info/.../

Cheers,
--Prabhakar Lad

0 Shankari G over 9 years ago in reply to USER

TI__Mastermind 43955 points

Hi Sai,

Sai says said:
But the question how to read video from SD card

You will find some sample code to drive ( I mean, access/read /write) the SD card here. There are lots of video file formats exist. If you are looking for sample code to read a video file from SD card as a bare metal code ( without any OS), it doenot exist in the starterware code.

If you run Linux on ARM core of OMAPL138, you may find some Linux video drivers.

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omapl138 read data from micro sd