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Forum Index : Microcontroller and PC projects : A "weird" qustion

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lew247

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Joined: 23/12/2015
Location: United Kingdom
Posts: 1702
Posted: 05:34am 30 Jul 2016
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SSD 1963 LCD's come with an SD card, and you can load pictures (bmp's) on the card to display on the LCD
Is it possible to use an 8 bit parallel EEPROM to store the pictures instead of the SD card? and load them from the EEPROM?

Something like this

Or is it a totally stupid idea?

I was thinking IF it was possible, then pictures "should" load faster than reading them from an SD card? (maybe)Edited by lew247 2016-07-31
 
matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 10222
Posted: 05:42am 30 Jul 2016
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That device has far too many pins.

I've got some code that will load pictures from SD card 6x faster than currently the case. Need to do a bit more testing before posting.

Current times are:

Loading a 480 x 272 image on a 4.3" SSD1963

LOAD IMAGE "router.bmp" 5.1 seconds

DisplayPicture "router.ppm" 0.8 seconds
 
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