How it depends on RAM,ROM size and is there any limitatopns with respective to screen size?

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asked Apr 19, 2018 in Getting started by Mohammed

1 Answer

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answered Apr 19, 2018 by Manfred Schweyer

Hi Mohammed,

please let me refer to the following article: http://ask.embedded-wizard.de/6/what-minimum-memory-footprint-embedded-wizard-application

Maybe this answers already your question - otherwise please let us know more details about your project and your questions...


Best regards,

Manfred.

commented Apr 19, 2018 by Mohammed
Ya, thank you for the response but I seen that the memory calcultation is for 320*240 but is   it possible to get the same details for 800*480 ?
commented Apr 19, 2018 by Manfred Schweyer

For 800x480 and 32 bit color format it looks like:

Case 5: 800 x 480 @ RGBA8888 (32 bit)
Assuming a target with RGBA8888 (32 bit) color format and a display size of 800 x 480 pixel, the following amount of memory is required:

    Chora Objects                                           8 kByte
    Strings                                                 2 kByte
    Bitmap Resources (ca. 30 kPix * 4 Byte)               120 kByte
    Resoure Data Structure                                  4 kByte
    Font Cache (256x256 Pix)                               65 kByte
    Internal                                               16 kByte
    ---------------------------------------------------------------
    Total                                                 214 kByte
    plus visible Framebuffer 800x480 Pix * 4 Byte        1500 kByte 
    plus optional Doublebuffer 800x480 Pix * 4 Byte      1500 kByte
    ---------------------------------------------------------------
    Overall                                              3214 kByte

Nevertheless, the real memory footprint always depends on your planned GUI application and on the number and size of used resources.

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