topic Re: LVGL Font from Flash in i.MX RT Crossover MCUs

LVGL Font from Flash

SpeedyGonzalesss — Wed, 10 Jan 2024 11:03:44 GMT

Hello,

I am using I.MX RT1170 and MCUXpresso IDE.

I want to use font and images files as .bin from QSPI Flash. Gui Guider program, with its LVGL library, allows the images used to be created as .bin and read from Flash. But I couldn't find any support about the font. How can I perform the same operations for the font?

For images;

Gui Guider

MCU Xpresso

Re: LVGL Font from Flash

Bio_TICFSL — Wed, 10 Jan 2024 14:52:49 GMT

Hello,

a). The current version does not support the input of such characters, we plan to support in March.

b). This is a workaround.

1. Please design UI with English characters instead of Russian characters.

2. To generated Russian characters by this link fontconverter.

3. Use this fonts C file ("lv_font_Montserrat_SemiBold_19.c") to replace "test\generated\guider_fonts\lv_font_Montserrat_SemiBold_19.c"

4. Modify the "test\generated\setup_scr_screen.c" like the sip

5. Execute "make -r && make -r run" on this "test\lvgl-simulator" path.

Regards

Re: LVGL Font from Flash

SpeedyGonzalesss — Thu, 11 Jan 2024 06:29:42 GMT

@Bio_TICFSL Thanks for answer. But i want to use .bin file not .c file. Because my goal is to separate code, images and font images and update only the relevant areas in software updates. Therefore, I must create a .bin for the font, write it to a specific address in flash, and use this font in text operations. LVGL's 'lv_font_conv' library provides conversion of the font to .bin format. What I need is to learn how the file converted to .bin is used in the code.