mirror of
https://github.com/espressif/esp-idf
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change(lcd): simplify the i80 lcd example
removed the lcd touch panel initialization code. For those touch panel driver usage, please check the esp_bsp repo.
This commit is contained in:
morris
parent
23c41fc772
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565235d7af
@ -1,7 +1,7 @@
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| Supported Targets | ESP32 | ESP32-S2 | ESP32-S3 |
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| ----------------- | ----- | -------- | -------- |
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| Supported Targets | ESP32 | ESP32-P4 | ESP32-S2 | ESP32-S3 |
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| ----------------- | ----- | -------- | -------- | -------- |
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# LVGL porting example (based on i80 interfaced LCD controller)
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# i80 LCD LVGL porting example
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LVGL is an open-source graphics library for creating modern GUIs. It has plenty of built-in graphical elements with low memory footprint, which is friendly for embedded GUI applications.
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@ -29,34 +29,25 @@ The connection between ESP Board and the LCD is as follows:
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```text
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ESP Board LCD Screen
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┌─────────────┐ ┌────────────────┐
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│ │ │ │
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│ 3V3 ├─────────────►│ VCC │
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│ │ │ │
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│ GND ├──────────────┤ GND │
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│ │ │ │
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│ DATA[0..7] │◄────────────►│ DATA[0..7] │
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│ │ │ │
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│ PCLK ├─────────────►│ PCLK │
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│ │ │ │
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│ CS ├─────────────►│ CS │
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│ │ │ │
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│ D/C ├─────────────►│ D/C │
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│ │ │ │
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│ RST ├─────────────►│ RST │
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│ │ │ │
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│ BK_LIGHT ├─────────────►│ BCKL │
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│ │ │ │
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│ │ └────────────────┘
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│ │ LCD TOUCH
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│ │ ┌────────────────┐
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│ │ │ │
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│ I2C SCL ├─────────────►│ I2C SCL │
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│ │ │ │
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│ I2C SDA │◄────────────►│ I2C SDA │
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│ │ │ │
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└─────────────┘ └────────────────┘
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+-------------+ +----------------+
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| | | |
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| 3V3 +------------->| VCC |
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| | | |
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| GND +--------------+ GND |
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| | | |
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| DATA[0..7] |<------------>| DATA[0..7] |
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| | | |
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| PCLK +------------->| PCLK |
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| | | |
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| CS +------------->| CS |
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| | | |
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| D/C +------------->| D/C |
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| | | |
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| RST +------------->| RST |
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| | | |
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| BK_LIGHT +------------->| BCKL |
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| | | |
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+-------------+ +----------------+
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```
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The GPIO number used by this example can be changed in [i80_controller_example_main.c](main/i80_controller_example_main.c).
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@ -69,9 +60,8 @@ Run `idf.py set-target <target-name>` to select one supported target that can ru
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Run `idf.py menuconfig` to open a terminal UI where you can tune specific configuration for this example in the `Example Configuration` menu.
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* `i80 LCD controller model`: Choose the LCD model to use by the example. If you choose `NT35510`, there will be another relevant configuration `NT35510 Data Width`, to choose the data line width for your NT35510 LCD module.
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* `Allocate color data from PSRAM`: Select this option if you want to allocate the LVGL draw buffers from PSRAM.
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* `Pixel clock frequency (Hz)`: Set the pixel clock frequency for the LCD controller.
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* `LCD image source from`: Select where to load the image resource. See [Image Resource](#image-resource) for more details.
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Run `idf.py -p PORT build flash monitor` to build, flash and monitor the project. A fancy animation will show up on the LCD as expected.
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@ -99,16 +89,6 @@ I (558) example: Starting LVGL task
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I (638) example: Display LVGL animation
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```
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## Touch Screen Support
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This example supports touch screen connected via I2C. You can enable it by running `idf.py menuconfig` and navigating to `Example Configuration -> Enable LCD touch`. When touch is enabled, there will be a new button in the GUI that can restart the animation.
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These touch controllers are supported:
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* [GT911](https://github.com/espressif/esp-bsp/tree/master/components/lcd_touch/esp_lcd_touch_gt911)
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* [TT21100](https://github.com/espressif/esp-bsp/tree/master/components/lcd_touch/esp_lcd_touch_tt21100)
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* [FT5X06](https://github.com/espressif/esp-bsp/tree/master/components/lcd_touch/esp_lcd_touch_ft5x06)
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## Image Resource
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This example supports two ways of reading images
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@ -120,6 +100,6 @@ This example supports two ways of reading images
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* Can't get a stable UI when `EXAMPLE_LCD_I80_COLOR_IN_PSRAM` is enabled.
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This is because of the limited PSRAM bandwidth, compared to the internal SRAM. You can either decrease the PCLK clock `EXAMPLE_LCD_PIXEL_CLOCK_HZ` in [i80_controller_example_main.c](main/i80_controller_example_main.c) or increase the PSRAM working frequency `SPIRAM_SPEED` from the KConfig (e.g. **ESP32S3-Specific** -> **Set RAM clock speed**) or decrease the FPS in LVGL configuration. For illustration, this example has set the refresh period to 100ms in the default sdkconfig file.
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This is because of the limited PSRAM bandwidth, compared to the internal SRAM. You can either decrease the PCLK clock `EXAMPLE_LCD_PIXEL_CLOCK_HZ` from the menuconfig or increase the PSRAM working frequency `SPIRAM_SPEED` from the KConfig (e.g. **ESP32S3-Specific** -> **Set RAM clock speed**) or decrease the FPS in LVGL configuration. For illustration, this example has set the refresh period to 100ms in the default sdkconfig file.
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For any technical queries, please open an [issue](https://github.com/espressif/esp-idf/issues) on GitHub. We will get back to you soon.
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@ -2,11 +2,17 @@ menu "Example Configuration"
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config EXAMPLE_LCD_I80_COLOR_IN_PSRAM
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bool "Allocate color data from PSRAM"
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depends on IDF_TARGET_ESP32S3
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depends on SOC_PSRAM_DMA_CAPABLE
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default y
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help
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Enable this option if you wish to allocate the color buffer used by LVGL from PSRAM.
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Unmatched PSRAM band width with LCD requirement can lead to blurred image display.
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Enable this option if you want to allocate the LVGL draw buffer from PSRAM.
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config EXAMPLE_LCD_PIXEL_CLOCK_HZ
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int "Pixel clock frequency (Hz)"
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default 2000000 if EXAMPLE_LCD_I80_COLOR_IN_PSRAM && IDF_TARGET_ESP32S3
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default 10000000
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help
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Set the pixel clock frequency in Hz.
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choice EXAMPLE_LCD_I80_CONTROLLER_MODEL
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prompt "i80 LCD controller model"
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@ -45,29 +51,6 @@ menu "Example Configuration"
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default 16 if EXAMPLE_LCD_NT35510_DATA_WIDTH_16
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default 8
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config EXAMPLE_LCD_TOUCH_ENABLED
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bool "Enable LCD touch"
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default n
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help
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Enable this option if you wish to use display touch. You can select from three touch controllers.
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choice EXAMPLE_LCD_TOUCH_CONTROLLER
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prompt "LCD touch controller model"
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depends on EXAMPLE_LCD_TOUCH_ENABLED
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default EXAMPLE_LCD_TOUCH_CONTROLLER_FT5X06
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help
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Select LCD touch controller model
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config EXAMPLE_LCD_TOUCH_CONTROLLER_GT911
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bool "GT911"
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config EXAMPLE_LCD_TOUCH_CONTROLLER_TT21100
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bool "TT21100"
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config EXAMPLE_LCD_TOUCH_CONTROLLER_FT5X06
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bool "FT5X06"
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endchoice
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choice EXAMPLE_LCD_IMAGE_SOURCE
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prompt "LCD image source from"
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default EXAMPLE_LCD_IMAGE_FROM_EMBEDDED_BINARY
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@ -9,36 +9,21 @@
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#include "freertos/task.h"
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#include "freertos/semphr.h"
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#include "esp_timer.h"
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#include "esp_heap_caps.h"
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#include "esp_err.h"
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#include "esp_log.h"
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#include "esp_lcd_panel_io.h"
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#include "esp_lcd_panel_vendor.h"
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#include "esp_lcd_panel_ops.h"
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#include "esp_lcd_touch.h"
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#include "esp_spiffs.h"
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#include "driver/gpio.h"
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#include "driver/i2c.h"
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#include "esp_err.h"
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#include "esp_log.h"
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#include "lvgl.h"
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#if CONFIG_EXAMPLE_LCD_TOUCH_CONTROLLER_GT911
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#include "esp_lcd_touch_gt911.h"
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#elif CONFIG_EXAMPLE_LCD_TOUCH_CONTROLLER_TT21100
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#include "esp_lcd_touch_tt21100.h"
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#elif CONFIG_EXAMPLE_LCD_TOUCH_CONTROLLER_FT5X06
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#include "esp_lcd_touch_ft5x06.h"
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#endif
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static const char *TAG = "example";
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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//////////////////// Please update the following configuration according to your LCD spec //////////////////////////////
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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#if CONFIG_EXAMPLE_LCD_I80_COLOR_IN_PSRAM
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// PCLK frequency can't go too high as the limitation of PSRAM bandwidth
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#define EXAMPLE_LCD_PIXEL_CLOCK_HZ (2 * 1000 * 1000)
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#else
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#define EXAMPLE_LCD_PIXEL_CLOCK_HZ (10 * 1000 * 1000)
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#endif // CONFIG_EXAMPLE_LCD_I80_COLOR_IN_PSRAM
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#define EXAMPLE_LCD_PIXEL_CLOCK_HZ CONFIG_EXAMPLE_LCD_PIXEL_CLOCK_HZ
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#define EXAMPLE_LCD_BK_LIGHT_ON_LEVEL 1
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#define EXAMPLE_LCD_BK_LIGHT_OFF_LEVEL !EXAMPLE_LCD_BK_LIGHT_ON_LEVEL
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@ -81,12 +66,6 @@ static const char *TAG = "example";
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#define EXAMPLE_LCD_PARAM_BITS 8
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#endif
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#if CONFIG_EXAMPLE_LCD_TOUCH_ENABLED
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#define EXAMPLE_I2C_NUM 0 // I2C number
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#define EXAMPLE_I2C_SCL 39
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#define EXAMPLE_I2C_SDA 40
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#endif
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#define EXAMPLE_LVGL_TICK_PERIOD_MS 2
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#define EXAMPLE_LVGL_TASK_MAX_DELAY_MS 500
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#define EXAMPLE_LVGL_TASK_MIN_DELAY_MS 1
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@ -117,29 +96,6 @@ static void example_lvgl_flush_cb(lv_disp_drv_t *drv, const lv_area_t *area, lv_
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esp_lcd_panel_draw_bitmap(panel_handle, offsetx1, offsety1, offsetx2 + 1, offsety2 + 1, color_map);
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}
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#if CONFIG_EXAMPLE_LCD_TOUCH_ENABLED
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static void example_lvgl_touch_cb(lv_indev_drv_t *drv, lv_indev_data_t *data)
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{
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uint16_t touchpad_x[1] = {0};
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uint16_t touchpad_y[1] = {0};
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uint8_t touchpad_cnt = 0;
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/* Read touch controller data */
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esp_lcd_touch_read_data(drv->user_data);
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/* Get coordinates */
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bool touchpad_pressed = esp_lcd_touch_get_coordinates(drv->user_data, touchpad_x, touchpad_y, NULL, &touchpad_cnt, 1);
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if (touchpad_pressed && touchpad_cnt > 0) {
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data->point.x = touchpad_x[0];
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data->point.y = touchpad_y[0];
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data->state = LV_INDEV_STATE_PRESSED;
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} else {
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data->state = LV_INDEV_STATE_RELEASED;
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}
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}
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#endif
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static void example_increase_lvgl_tick(void *arg)
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{
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/* Tell LVGL how many milliseconds has elapsed */
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@ -342,64 +298,6 @@ void example_init_lcd_panel(esp_lcd_panel_io_handle_t io_handle, esp_lcd_panel_h
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*panel = panel_handle;
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}
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#if CONFIG_EXAMPLE_LCD_TOUCH_ENABLED
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void example_init_lcd_touch(esp_lcd_touch_handle_t *tp_handle)
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{
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esp_lcd_touch_handle_t tp = NULL;
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esp_lcd_panel_io_handle_t tp_io_handle = NULL;
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const i2c_config_t i2c_conf = {
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.mode = I2C_MODE_MASTER,
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.sda_io_num = EXAMPLE_I2C_SDA,
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.scl_io_num = EXAMPLE_I2C_SCL,
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.sda_pullup_en = GPIO_PULLUP_ENABLE,
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.scl_pullup_en = GPIO_PULLUP_ENABLE,
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.master.clk_speed = 400000,
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};
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/* Initialize I2C */
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ESP_ERROR_CHECK(i2c_param_config(EXAMPLE_I2C_NUM, &i2c_conf));
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ESP_ERROR_CHECK(i2c_driver_install(EXAMPLE_I2C_NUM, i2c_conf.mode, 0, 0, 0));
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#if CONFIG_EXAMPLE_LCD_TOUCH_CONTROLLER_GT911
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esp_lcd_panel_io_i2c_config_t tp_io_config = ESP_LCD_TOUCH_IO_I2C_GT911_CONFIG();
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#elif CONFIG_EXAMPLE_LCD_TOUCH_CONTROLLER_TT21100
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esp_lcd_panel_io_i2c_config_t tp_io_config = ESP_LCD_TOUCH_IO_I2C_TT21100_CONFIG();
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#elif CONFIG_EXAMPLE_LCD_TOUCH_CONTROLLER_FT5X06
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esp_lcd_panel_io_i2c_config_t tp_io_config = ESP_LCD_TOUCH_IO_I2C_FT5x06_CONFIG();
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#endif
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ESP_LOGI(TAG, "Initialize touch IO (I2C)");
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/* Touch IO handle */
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ESP_ERROR_CHECK(esp_lcd_new_panel_io_i2c((esp_lcd_i2c_bus_handle_t)EXAMPLE_I2C_NUM, &tp_io_config, &tp_io_handle));
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esp_lcd_touch_config_t tp_cfg = {
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.x_max = EXAMPLE_LCD_V_RES,
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.y_max = EXAMPLE_LCD_H_RES,
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.rst_gpio_num = -1,
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.int_gpio_num = -1,
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.flags = {
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.swap_xy = 1,
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.mirror_x = 1,
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.mirror_y = 0,
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},
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};
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/* Initialize touch */
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#if CONFIG_EXAMPLE_LCD_TOUCH_CONTROLLER_GT911
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ESP_LOGI(TAG, "Initialize touch controller GT911");
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ESP_ERROR_CHECK(esp_lcd_touch_new_i2c_gt911(tp_io_handle, &tp_cfg, &tp));
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#elif CONFIG_EXAMPLE_LCD_TOUCH_CONTROLLER_TT21100
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ESP_LOGI(TAG, "Initialize touch controller TT21100");
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ESP_ERROR_CHECK(esp_lcd_touch_new_i2c_tt21100(tp_io_handle, &tp_cfg, &tp));
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#elif CONFIG_EXAMPLE_LCD_TOUCH_CONTROLLER_FT5X06
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ESP_LOGI(TAG, "Initialize touch controller FT5X06");
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ESP_ERROR_CHECK(esp_lcd_touch_new_i2c_ft5x06(tp_io_handle, &tp_cfg, &tp));
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#endif
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*tp_handle = tp;
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}
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#endif // CONFIG_EXAMPLE_LCD_TOUCH_ENABLED
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void app_main(void)
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{
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static lv_disp_draw_buf_t disp_buf; // contains internal graphic buffer(s) called draw buffer(s)
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@ -425,11 +323,6 @@ void app_main(void)
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esp_lcd_panel_handle_t panel_handle = NULL;
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example_init_lcd_panel(io_handle, &panel_handle);
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#if CONFIG_EXAMPLE_LCD_TOUCH_ENABLED
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esp_lcd_touch_handle_t tp_handle = NULL;
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example_init_lcd_touch(&tp_handle);
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#endif // CONFIG_EXAMPLE_LCD_TOUCH_ENABLED
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// Stub: user can flush pre-defined pattern to the screen before we turn on the screen or backlight
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ESP_ERROR_CHECK(esp_lcd_panel_disp_on_off(panel_handle, true));
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@ -474,16 +367,6 @@ void app_main(void)
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ESP_ERROR_CHECK(esp_timer_create(&lvgl_tick_timer_args, &lvgl_tick_timer));
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ESP_ERROR_CHECK(esp_timer_start_periodic(lvgl_tick_timer, EXAMPLE_LVGL_TICK_PERIOD_MS * 1000));
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#if CONFIG_EXAMPLE_LCD_TOUCH_ENABLED
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static lv_indev_drv_t indev_drv; // Input device driver (Touch)
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lv_indev_drv_init(&indev_drv);
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indev_drv.type = LV_INDEV_TYPE_POINTER;
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indev_drv.disp = disp;
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indev_drv.read_cb = example_lvgl_touch_cb;
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indev_drv.user_data = tp_handle;
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lv_indev_drv_register(&indev_drv);
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#endif // CONFIG_EXAMPLE_LCD_TOUCH_ENABLED
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lvgl_mux = xSemaphoreCreateRecursiveMutex();
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assert(lvgl_mux);
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ESP_LOGI(TAG, "Create LVGL task");
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@ -1,6 +1,2 @@
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dependencies:
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idf: ">=4.4"
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lvgl/lvgl: "~8.3.0"
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esp_lcd_touch_gt911: "^1.0"
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esp_lcd_touch_tt21100: "^1.0"
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esp_lcd_touch_ft5x06: "^1.0"
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lvgl/lvgl: "~8.4.0"
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@ -1,5 +1,5 @@
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/*
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* SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
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* SPDX-FileCopyrightText: 2021-2024 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: CC0-1.0
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*/
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@ -24,7 +24,6 @@ typedef struct {
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} my_timer_context_t;
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static my_timer_context_t my_tim_ctx;
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static lv_obj_t *btn;
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static lv_obj_t *arc[3];
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static lv_obj_t *img_logo = NULL;
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static lv_obj_t *img_text = NULL;
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@ -78,9 +77,6 @@ static void anim_timer_cb(lv_timer_t *timer)
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// Delete timer when all animation finished
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if ((count += 5) == 220) {
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lv_timer_del(timer);
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// Enable button
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lv_obj_clear_state(btn, LV_STATE_DISABLED);
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} else {
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timer_ctx->count_val = count;
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}
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@ -118,15 +114,6 @@ static void start_animation(lv_obj_t *scr)
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my_tim_ctx.count_val = -90;
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my_tim_ctx.scr = scr;
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lv_timer_create(anim_timer_cb, 20, &my_tim_ctx);
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// Disable button
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lv_obj_add_state(btn, LV_STATE_DISABLED);
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}
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static void btn_cb(lv_event_t *e)
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{
|
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lv_obj_t *scr = lv_event_get_user_data(e);
|
||||
start_animation(scr);
|
||||
}
|
||||
|
||||
void example_lvgl_demo_ui(lv_disp_t *disp)
|
||||
@ -140,13 +127,6 @@ void example_lvgl_demo_ui(lv_disp_t *disp)
|
||||
#elif CONFIG_EXAMPLE_LCD_IMAGE_FROM_EMBEDDED_BINARY
|
||||
lv_img_set_src(img_logo, &esp_logo);
|
||||
#endif
|
||||
btn = lv_btn_create(scr);
|
||||
lv_obj_t *lbl = lv_label_create(btn);
|
||||
lv_label_set_text_static(lbl, LV_SYMBOL_REFRESH" SHOW AGAIN");
|
||||
lv_obj_set_style_text_font(lbl, &lv_font_montserrat_20, 0);
|
||||
lv_obj_align(btn, LV_ALIGN_BOTTOM_LEFT, 30, -30);
|
||||
// Button event
|
||||
lv_obj_add_event_cb(btn, btn_cb, LV_EVENT_CLICKED, scr);
|
||||
|
||||
start_animation(scr);
|
||||
}
|
||||
|
||||
@ -5,3 +5,4 @@ CONFIG_LV_USE_USER_DATA=y
|
||||
CONFIG_LV_COLOR_16_SWAP=y
|
||||
CONFIG_LV_COLOR_DEPTH_16=y
|
||||
CONFIG_LV_FONT_MONTSERRAT_20=y
|
||||
CONFIG_IDF_EXPERIMENTAL_FEATURES=y
|
||||
|
||||
@ -0,0 +1,3 @@
|
||||
CONFIG_SPIRAM=y
|
||||
CONFIG_SPIRAM_MODE_HEX=y
|
||||
CONFIG_SPIRAM_SPEED_200M=y
|
||||
@ -3,5 +3,4 @@ CONFIG_SPIRAM_SPEED_80M=y
|
||||
|
||||
# Enabling the following configurations can help increase the PCLK frequency in the case when
|
||||
# the Frame Buffer is allocated from the PSRAM and fetched by EDMA
|
||||
CONFIG_SPIRAM_FETCH_INSTRUCTIONS=y
|
||||
CONFIG_SPIRAM_RODATA=y
|
||||
CONFIG_SPIRAM_XIP_FROM_PSRAM=y
|
||||
|
||||
Loading…
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Reference in New Issue
Block a user