lvgl: Add initial support for LVGL library #2951
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This adds general interface for communication with LCD display. Two implementations are ready: - Four wire SPI - Parallel 8080
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Signed-off-by: Jerzy Kasenberg <jerzy.kasenberg@codecoup.pl>
This adds application that allows to run LVGL provided demos. Several demos can be selected by LVGL_DEMO syscfg value.
This add support for resistive 4 wire touch screen, where X+/X-/Y+/Y- electrodes are connected to GPIO pins and MCU's ADC. Signed-off-by: Jerzy Kasenberg <jerzy.kasenberg@codecoup.pl>
adc_touch driver requires code that actually reads ADC. This change provides implementations for nrfx and two STM32 families. Signed-off-by: Jerzy Kasenberg <jerzy.kasenberg@codecoup.pl>
Signed-off-by: Jerzy Kasenberg <jerzy.kasenberg@codecoup.pl>
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This adds LVGL integration to mynewt.
Interface to displays is implemented as well as two touch screens controller.
Standard LVGL demos are also added as mynewt application.