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Author Topic: accessing custom font Glyphs in Flash  (Read 61 times)

iv_pb

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accessing custom font Glyphs in Flash
« on: January 13, 2021, 07:54:01 PM »

Currently I am setting the “start_of_Graphic_data”  (p + 32),  to the location of where the glyph file is in RAM.

        local Xfont = assetLoader.ImageInfo[xfont].index;
        local Glyph = assetLoader.ImageInfo[glyph].index;
        MCU_WriteMem32(Xfont + 32, Glyph);



For a glyph stored in Flash ([0x02F000 -> 0x057000]) for instance,
How would I compute the flash address to store in the “start_of_Graphic_data”  ?
Is there anything else I need to modify in the xfont (Font Metrics Block)?



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pauljiao

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Re: accessing custom font Glyphs in Flash
« Reply #1 on: January 20, 2021, 02:38:54 AM »

If the glyph is in ASTC and stored in flash, the address shall offset from 0x800000.
See the picture from programming guide
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