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CONFIG_LVGL_VDB_SIZE
¶
Rendering buffer size
Type: int
Help¶
Size of the buffer used for rendering screen content as a percentage of total display size.
Direct dependencies¶
(LVGL
&& DISPLAY
&& SHIELD_ADAFRUIT_2_8_TFT_TOUCH_V2
) || (LVGL
&& DISPLAY
&& SHIELD_BUYDISPLAY_2_8_TFT_TOUCH_ARDUINO
) || (LVGL
&& DISPLAY
&& SHIELD_BUYDISPLAY_3_5_TFT_TOUCH_ARDUINO
) || (LVGL
&& DISPLAY
&& (SHIELD_SSD1306_128X64
|| SHIELD_SSD1306_128X64_SPI
|| SHIELD_SSD1306_128X32
|| SHIELD_SH1106_128X64
)) || (LVGL
&& DISPLAY
&& (SHIELD_WAVESHARE_EPAPER_GDEH029A1
|| SHIELD_WAVESHARE_EPAPER_GDEH0213B1
|| SHIELD_WAVESHARE_EPAPER_GDEH0213B72
|| SHIELD_WAVESHARE_EPAPER_GDEW075T7
|| SHIELD_WAVESHARE_EPAPER_GDEH0154A07
)) || (LVGL
&& (BOARD_MIMXRT1050_EVK
|| BOARD_MIMXRT1050_EVK_QSPI
)) || (LVGL
&& (BOARD_MIMXRT1060_EVK
|| BOARD_MIMXRT1060_EVK_HYPERFLASH
)) || (LVGL
&& BOARD_MIMXRT1064_EVK
) || (LVGL
&& (BOARD_REEL_BOARD
|| BOARD_REEL_BOARD_V2
)) || (LVGL
&& DISPLAY
&& SHIELD_ADAFRUIT_2_8_TFT_TOUCH_V2
) || (LVGL
&& DISPLAY
&& SHIELD_BUYDISPLAY_2_8_TFT_TOUCH_ARDUINO
) || (LVGL
&& DISPLAY
&& SHIELD_BUYDISPLAY_3_5_TFT_TOUCH_ARDUINO
) || (LVGL
&& DISPLAY
&& (SHIELD_SSD1306_128X64
|| SHIELD_SSD1306_128X64_SPI
|| SHIELD_SSD1306_128X32
|| SHIELD_SH1106_128X64
)) || (LVGL
&& DISPLAY
&& (SHIELD_WAVESHARE_EPAPER_GDEH029A1
|| SHIELD_WAVESHARE_EPAPER_GDEH0213B1
|| SHIELD_WAVESHARE_EPAPER_GDEH0213B72
|| SHIELD_WAVESHARE_EPAPER_GDEW075T7
|| SHIELD_WAVESHARE_EPAPER_GDEH0154A07
)) || LVGL
(Includes any dependencies from ifs and menus.)
Defaults¶
64
64
32
64
16
16
16
16
16
64
64
32
64
16
10
Kconfig definitions¶
At <Zephyr>/boards/shields/adafruit_2_8_tft_touch_v2/Kconfig.defconfig:42
Included via <Zephyr>/Kconfig:8
→ <Zephyr>/Kconfig.zephyr:17
→ <BuildDir>/Kconfig/Kconfig.shield.defconfig:1
Menu path: (Top)
config LVGL_VDB_SIZE int default 64 depends onLVGL
&&DISPLAY
&&SHIELD_ADAFRUIT_2_8_TFT_TOUCH_V2
At <Zephyr>/boards/shields/buydisplay_2_8_tft_touch_arduino/Kconfig.defconfig:42
Included via <Zephyr>/Kconfig:8
→ <Zephyr>/Kconfig.zephyr:17
→ <BuildDir>/Kconfig/Kconfig.shield.defconfig:1
Menu path: (Top)
config LVGL_VDB_SIZE int default 64 depends onLVGL
&&DISPLAY
&&SHIELD_BUYDISPLAY_2_8_TFT_TOUCH_ARDUINO
At <Zephyr>/boards/shields/buydisplay_3_5_tft_touch_arduino/Kconfig.defconfig:42
Included via <Zephyr>/Kconfig:8
→ <Zephyr>/Kconfig.zephyr:17
→ <BuildDir>/Kconfig/Kconfig.shield.defconfig:1
Menu path: (Top)
config LVGL_VDB_SIZE int default 32 depends onLVGL
&&DISPLAY
&&SHIELD_BUYDISPLAY_3_5_TFT_TOUCH_ARDUINO
At <Zephyr>/boards/shields/ssd1306/Kconfig.defconfig:41
Included via <Zephyr>/Kconfig:8
→ <Zephyr>/Kconfig.zephyr:17
→ <BuildDir>/Kconfig/Kconfig.shield.defconfig:1
Menu path: (Top)
config LVGL_VDB_SIZE int default 64 depends onLVGL
&&DISPLAY
&& (SHIELD_SSD1306_128X64
||SHIELD_SSD1306_128X64_SPI
||SHIELD_SSD1306_128X32
||SHIELD_SH1106_128X64
)
At <Zephyr>/boards/shields/waveshare_epaper/Kconfig.defconfig:45
Included via <Zephyr>/Kconfig:8
→ <Zephyr>/Kconfig.zephyr:17
→ <BuildDir>/Kconfig/Kconfig.shield.defconfig:1
Menu path: (Top)
config LVGL_VDB_SIZE int default 16 ifSHIELD_WAVESHARE_EPAPER_GDEW075T7
default 16 depends onLVGL
&&DISPLAY
&& (SHIELD_WAVESHARE_EPAPER_GDEH029A1
||SHIELD_WAVESHARE_EPAPER_GDEH0213B1
||SHIELD_WAVESHARE_EPAPER_GDEH0213B72
||SHIELD_WAVESHARE_EPAPER_GDEW075T7
||SHIELD_WAVESHARE_EPAPER_GDEH0154A07
)
At <Zephyr>/boards/arm/mimxrt1050_evk/Kconfig.defconfig:66
Included via <Zephyr>/Kconfig:8
→ <Zephyr>/Kconfig.zephyr:18
Menu path: (Top)
config LVGL_VDB_SIZE int default 16 depends onLVGL
&& (BOARD_MIMXRT1050_EVK
||BOARD_MIMXRT1050_EVK_QSPI
)
At <Zephyr>/boards/arm/mimxrt1060_evk/Kconfig.defconfig:63
Included via <Zephyr>/Kconfig:8
→ <Zephyr>/Kconfig.zephyr:18
Menu path: (Top)
config LVGL_VDB_SIZE int default 16 depends onLVGL
&& (BOARD_MIMXRT1060_EVK
||BOARD_MIMXRT1060_EVK_HYPERFLASH
)
At <Zephyr>/boards/arm/mimxrt1064_evk/Kconfig.defconfig:62
Included via <Zephyr>/Kconfig:8
→ <Zephyr>/Kconfig.zephyr:18
Menu path: (Top)
config LVGL_VDB_SIZE int default 16 depends onLVGL
&&BOARD_MIMXRT1064_EVK
At <Zephyr>/boards/arm/reel_board/Kconfig.defconfig:60
Included via <Zephyr>/Kconfig:8
→ <Zephyr>/Kconfig.zephyr:18
Menu path: (Top)
config LVGL_VDB_SIZE int default 16 depends onLVGL
&& (BOARD_REEL_BOARD
||BOARD_REEL_BOARD_V2
)
At <Zephyr>/boards/shields/adafruit_2_8_tft_touch_v2/Kconfig.defconfig:42
Included via <Zephyr>/Kconfig:8
→ <Zephyr>/Kconfig.zephyr:18
Menu path: (Top)
config LVGL_VDB_SIZE int default 64 depends onLVGL
&&DISPLAY
&&SHIELD_ADAFRUIT_2_8_TFT_TOUCH_V2
At <Zephyr>/boards/shields/buydisplay_2_8_tft_touch_arduino/Kconfig.defconfig:42
Included via <Zephyr>/Kconfig:8
→ <Zephyr>/Kconfig.zephyr:18
Menu path: (Top)
config LVGL_VDB_SIZE int default 64 depends onLVGL
&&DISPLAY
&&SHIELD_BUYDISPLAY_2_8_TFT_TOUCH_ARDUINO
At <Zephyr>/boards/shields/buydisplay_3_5_tft_touch_arduino/Kconfig.defconfig:42
Included via <Zephyr>/Kconfig:8
→ <Zephyr>/Kconfig.zephyr:18
Menu path: (Top)
config LVGL_VDB_SIZE int default 32 depends onLVGL
&&DISPLAY
&&SHIELD_BUYDISPLAY_3_5_TFT_TOUCH_ARDUINO
At <Zephyr>/boards/shields/ssd1306/Kconfig.defconfig:41
Included via <Zephyr>/Kconfig:8
→ <Zephyr>/Kconfig.zephyr:18
Menu path: (Top)
config LVGL_VDB_SIZE int default 64 depends onLVGL
&&DISPLAY
&& (SHIELD_SSD1306_128X64
||SHIELD_SSD1306_128X64_SPI
||SHIELD_SSD1306_128X32
||SHIELD_SH1106_128X64
)
At <Zephyr>/boards/shields/waveshare_epaper/Kconfig.defconfig:45
Included via <Zephyr>/Kconfig:8
→ <Zephyr>/Kconfig.zephyr:18
Menu path: (Top)
config LVGL_VDB_SIZE int default 16 ifSHIELD_WAVESHARE_EPAPER_GDEW075T7
default 16 depends onLVGL
&&DISPLAY
&& (SHIELD_WAVESHARE_EPAPER_GDEH029A1
||SHIELD_WAVESHARE_EPAPER_GDEH0213B1
||SHIELD_WAVESHARE_EPAPER_GDEH0213B72
||SHIELD_WAVESHARE_EPAPER_GDEW075T7
||SHIELD_WAVESHARE_EPAPER_GDEH0154A07
)
At <Zephyr>/lib/gui/lvgl/Kconfig.memory:68
Included via <Zephyr>/Kconfig:8
→ <Zephyr>/Kconfig.zephyr:33
→ <Zephyr>/lib/Kconfig:14
→ <Zephyr>/lib/gui/Kconfig:4
→ <Zephyr>/lib/gui/lvgl/Kconfig:25
Menu path: (Top) → Additional libraries → LittlevGL GUI library → Memory manager settings
config LVGL_VDB_SIZE
int "Rendering buffer size"
range 1 100
default 10
depends on LVGL
help
Size of the buffer used for rendering screen content as a percentage
of total display size.
(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)