Wrong Color Display With Lvgl 8 3 General Discussion Lvgl Forum Hello, i’m building the lvgl. i have simulated with lvgl simulation tools and it showed true color, but when i load the code and use the screen and display it → screen displays the wrong color. Probably lvgl's color format is not compatible with your displays color format. check lv color depth in lv conf.h. if you are using 16 bit colors with spi (or other byte oriented interface) probably you need to set lv color 16 swap 1 in lv conf.h. it swaps the upper and lower bytes of the pixels.
Lvgl Display Zephyr Wrong Color General Discussion Lvgl Forum Yes, i also think it is a configuration problem, but this is spi 4 wire tft screen, the parameters are supported ips wide color gamut, so lvgl need any special configuration?. I have a project that uses the esp32 c3 chip, paired with freertos and lvgl. the color display of the colorwheel ring in lvgl has many bars, and currently there is no solution to optimize it. Hello, i’m building the lvgl that uses nrf52840 with zephyr (ncs 2.2.0). i have simulated with lvgl simulation tools and it showed true color, but when i load the code and use the screen and display it → screen displays the wrong color. Besides,if i use lcd set color function, the display color is right,but when i use lvgl9 api to set some color, the color is not right. why? the rgb565 to rgb888 conversion is not correct. here is a correct (but slower because it uses division and floating point) version that i used. uint8 t r5 = rgb565 >> 11;.
Lvgl Display Zephyr Wrong Color General Discussion Lvgl Forum Hello, i’m building the lvgl that uses nrf52840 with zephyr (ncs 2.2.0). i have simulated with lvgl simulation tools and it showed true color, but when i load the code and use the screen and display it → screen displays the wrong color. Besides,if i use lcd set color function, the display color is right,but when i use lvgl9 api to set some color, the color is not right. why? the rgb565 to rgb888 conversion is not correct. here is a correct (but slower because it uses division and floating point) version that i used. uint8 t r5 = rgb565 >> 11;. To save memory, lv color depth is set to 8 but the display shows weird patterns. if i set lv color depth 16, and convert the rgb565 to grayscale (luma), the display works but i need the double buffer space. Note that the `lv examples` library is for lvgl v7 and you shouldn't install it for this version (since lvgl v8) as the examples and demos are now part of the main lvgl library. I've been running into some hurdles with my elecrow 5" esp32 display project, particularly concerning the user interface (ui) stability. the issues seem to revolve around uart0 usage and data storage using the preferences library & spiffs. I have tested multiple troubleshooting steps, including reinitializing the display driver, adjusting buffer sizes, modifying color formats (rgb565, argb8888), and even running the ui in the simulator, but the issue persists.
Lvgl Display Zephyr Wrong Color General Discussion Lvgl Forum To save memory, lv color depth is set to 8 but the display shows weird patterns. if i set lv color depth 16, and convert the rgb565 to grayscale (luma), the display works but i need the double buffer space. Note that the `lv examples` library is for lvgl v7 and you shouldn't install it for this version (since lvgl v8) as the examples and demos are now part of the main lvgl library. I've been running into some hurdles with my elecrow 5" esp32 display project, particularly concerning the user interface (ui) stability. the issues seem to revolve around uart0 usage and data storage using the preferences library & spiffs. I have tested multiple troubleshooting steps, including reinitializing the display driver, adjusting buffer sizes, modifying color formats (rgb565, argb8888), and even running the ui in the simulator, but the issue persists.
Lvgl Display Zephyr Wrong Color General Discussion Lvgl Forum I've been running into some hurdles with my elecrow 5" esp32 display project, particularly concerning the user interface (ui) stability. the issues seem to revolve around uart0 usage and data storage using the preferences library & spiffs. I have tested multiple troubleshooting steps, including reinitializing the display driver, adjusting buffer sizes, modifying color formats (rgb565, argb8888), and even running the ui in the simulator, but the issue persists.
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