# LVGL Demo v9 [英文版本](./README.md) 该示例演示了如何移植 LVGL v9 并使用 LVGL 内置的示例进行性能测试。该示例使用了开发板的 MIPI-DSI 接口。基于此示例，可以开发基于 LVGL v9 的应用。 ## 快速入门 ### 准备工作 * 一块 ESP32-P4-Function-EV-Board 开发板。 * 一块由 [EK79007](https://dl.espressif.com/dl/schematics/display_driver_chip_EK79007AD_datasheet.pdf) 芯片驱动的 7 英寸 1024 x 600 LCD 屏幕，配有 32 针 FPC 连接 [适配板](https://dl.espressif.com/dl/schematics/esp32-p4-function-ev-board-lcd-subboard-schematics.pdf) ([LCD 规格](https://dl.espressif.com/dl/schematics/display_datasheet.pdf))。 * 用于供电和编程的 USB-C 电缆。 * 请参考以下步骤进行连接： * **步骤 1**. 根据下表，将屏幕适配板背面的引脚连接到开发板的相应引脚。 | 屏幕适配板 | ESP32-P4-Function-EV-Board | | -------------------- | -------------------------- | | 5V（任意一个） | 5V（任意一个） | | GND（任意一个） | GND（任意一个） | | PWM | GPIO26 | | LCD_RST | GPIO27 | * **步骤 2**. 通过 `MIPI_DSI` 接口连接 LCD 的 FPC。 * **步骤 3**. 使用 USB-C 电缆将 `USB-UART` 端口连接到 PC（用于供电和查看串行输出）。 * **步骤 4**. 打开开发板的电源开关。 ### ESP-IDF 要求 - 此示例支持 ESP-IDF release/v5.3 及以上版本。默认情况下，在 ESP-IDF release/v5.3 上运行。 - 请参照 [ESP-IDF 编程指南](https://docs.espressif.com/projects/esp-idf/zh_CN/latest/esp32/get-started/index.html) 设置开发环境。**强烈推荐** 通过 [编译第一个工程](https://docs.espressif.com/projects/esp-idf/zh_CN/latest/esp32/get-started/index.html#id8) 来熟悉 ESP-IDF，并确保环境设置正确。 ### 获取 esp-dev-kits 仓库 在编译 esp-dev-kits 仓库中的示例之前，请先在终端中运行以下命令，将该仓库克隆到本地： ``` git clone --recursive https://github.com/espressif/esp-dev-kits.git ``` ### 配置 运行 ``idf.py menuconfig`` 并修改 ``Board Support Package(ESP32-P4)`` 配置： ``` menuconfig > Component config > Board Support Package ``` ## 如何使用示例 ### 编译和烧录示例 编译项目并将其烧录到开发板上，运行监视工具可查看串行端口输出（将 `PORT` 替换为所用开发板的串行端口名）： ```c idf.py -p PORT flash monitor ``` 输入``Ctrl-]`` 可退出串口监视。 有关配置和使用 ESP-IDF 来编译项目的完整步骤，请参阅 [ESP-IDF 快速入门指南](https://docs.espressif.com/projects/esp-idf/zh_CN/latest/esp32/get-started/index.html) 。 ### 示例输出 - 完整日志如下所示： ```c I (25) boot: ESP-IDF v5.4-dev-2167-gdef35b1ca7-dirty 2nd stage bootloader I (26) boot: compile time Sep 27 2024 17:00:31 I (27) boot: Multicore bootloader I (32) boot: chip revision: v0.1 I (35) qio_mode: Enabling default flash chip QIO I (40) boot.esp32p4: SPI Speed : 80MHz I (45) boot.esp32p4: SPI Mode : QIO I (49) boot.esp32p4: SPI Flash Size : 16MB I (54) boot: Enabling RNG early entropy source... I (60) boot: Partition Table: I (63) boot: ## Label Usage Type ST Offset Length I (70) boot: 0 nvs WiFi data 01 02 00009000 00006000 I (78) boot: 1 phy_init RF data 01 01 0000f000 00001000 I (85) boot: 2 factory factory app 00 00 00010000 00800000 I (93) boot: 3 storage Unknown data 01 82 00810000 00700000 I (101) boot: End of partition table I (105) esp_image: segment 0: paddr=00010020 vaddr=48060020 size=bacdch (765148) map I (233) esp_image: segment 1: paddr=000cad04 vaddr=30100000 size=00020h ( 32) load I (235) esp_image: segment 2: paddr=000cad2c vaddr=30100020 size=0003ch ( 60) load I (240) esp_image: segment 3: paddr=000cad70 vaddr=4ff00000 size=052a8h ( 21160) load I (253) esp_image: segment 4: paddr=000d0020 vaddr=48000020 size=5b534h (374068) map I (315) esp_image: segment 5: paddr=0012b55c vaddr=4ff052a8 size=1caa0h (117408) load I (338) esp_image: segment 6: paddr=00148004 vaddr=4ff21d80 size=03074h ( 12404) load I (348) boot: Loaded app from partition at offset 0x10000 I (349) boot: Disabling RNG early entropy source... I (360) hex_psram: vendor id : 0x0d (AP) I (361) hex_psram: Latency : 0x01 (Fixed) I (361) hex_psram: DriveStr. : 0x00 (25 Ohm) I (364) hex_psram: dev id : 0x03 (generation 4) I (370) hex_psram: density : 0x07 (256 Mbit) I (375) hex_psram: good-die : 0x06 (Pass) I (380) hex_psram: SRF : 0x02 (Slow Refresh) I (386) hex_psram: BurstType : 0x00 ( Wrap) I (391) hex_psram: BurstLen : 0x03 (2048 Byte) I (397) hex_psram: BitMode : 0x01 (X16 Mode) I (402) hex_psram: Readlatency : 0x04 (14 cycles@Fixed) I (408) hex_psram: DriveStrength: 0x00 (1/1) I (413) MSPI DQS: tuning success, best phase id is 2 I (597) MSPI DQS: tuning success, best delayline id is 11 I esp_psram: Found 32MB PSRAM device I esp_psram: Speed: 200MHz I (597) mmu_psram: flash_drom_paddr_start: 0x10000 I (640) mmu_psram: flash_irom_paddr_start: 0xd0000 I (659) hex_psram: psram CS IO is dedicated I (659) cpu_start: Multicore app I (1091) esp_psram: SPI SRAM memory test OK W (1101) clk: esp_perip_clk_init() has not been implemented yet I (1108) cpu_start: Pro cpu start user code I (1108) cpu_start: cpu freq: 360000000 Hz I (1108) app_init: Application information: I (1111) app_init: Project name: lvgl_demo_v9 I (1117) app_init: App version: 7e53cd00-dirty I (1122) app_init: Compile time: Sep 27 2024 17:00:22 I (1128) app_init: ELF file SHA256: 506da7290... I (1134) app_init: ESP-IDF: v5.4-dev-2167-gdef35b1ca7-dirty I (1141) efuse_init: Min chip rev: v0.1 I (1146) efuse_init: Max chip rev: v0.99 I (1151) efuse_init: Chip rev: v0.1 I (1155) heap_init: Initializing. RAM available for dynamic allocation: I (1163) heap_init: At 4FF26B50 len 00014470 (81 KiB): RAM I (1169) heap_init: At 4FF3AFC0 len 00004BF0 (18 KiB): RAM I (1175) heap_init: At 4FF40000 len 00040000 (256 KiB): RAM I (1182) heap_init: At 50108080 len 00007F80 (31 KiB): RTCRAM I (1188) heap_init: At 3010005C len 00001FA4 (7 KiB): TCM I (1194) esp_psram: Adding pool of 30848K of PSRAM memory to heap allocator I (1202) spi_flash: detected chip: generic I (1206) spi_flash: flash io: qio W (1210) i2c: This driver is an old driver, please migrate your application code to adapt `driver/i2c_master.h` I (1221) main_task: Started on CPU0 I (1244) esp_psram: Reserving pool of 32K of internal memory for DMA/internal allocations I (1244) main_task: Calling app_main() I (1246) LVGL: Starting LVGL task W (1250) ledc: GPIO 26 is not usable, maybe conflict with others I (1257) ESP32_P4_EV: MIPI DSI PHY Powered on I (1263) ESP32_P4_EV: Install MIPI DSI LCD control panel I (1268) ESP32_P4_EV: Install EK79007 LCD control panel I (1274) ek79007: version: 0.1.0 I (1278) gpio: GPIO[27]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0 I (1444) ESP32_P4_EV: Display initialized E (1446) lcd_panel: esp_lcd_panel_swap_xy(50): swap_xy is not supported by this panel W (1446) GT911: Unable to initialize the I2C address I (1452) GT911: TouchPad_ID:0x39,0x31,0x31 I (1456) GT911: TouchPad_Config_Version:89 I (1461) ESP32_P4_EV: Setting LCD backlight: 100% I (1542) main_task: Returned from app_main() ... ``` ## 技术支持与反馈 请通过以下渠道进行反馈： - 有关技术问题，请访问 [esp32.com](https://esp32.com/viewforum.php?f=22) 论坛。 - 有关功能请求或错误报告，请创建新的 [GitHub 问题](https://github.com/espressif/esp-dev-kits/issues)。 我们会尽快回复。