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Altera_Forum's avatar
Altera_Forum
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12 years ago

IS it Possible to display bmp image read from SDRAM

Can any one tell us pls. I am using DE0 board. Reading bmp image from SDCARD display it on VGA instead of SRAM buffer i m using SDRAM. is it possible to display the bmp image.
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

The format varies depending on the type of BMP image it is (Color resolution)

http://en.wikipedia.org/wiki/bmp_file_format#pixel_array_.28bitmap_data.29

Should give you the information you need. Read the header info to locate your data format.

Then I suggest you have a line fifo to output the lines at a constant rate. Fill it at the rate the SDRAM can provide and have it read out at the video rate.

Pete