【免费】[例程]正点原子F429RGB屏幕移植LittleVGL6.0.2（无触摸，仅显示）

共1478个文件

c：742个

h：426个

s：78个

stm32

arm

嵌入式硬件

需积分: 0 179 浏览量 2022-03-21 23:53:44 上传评论收藏 8.87MB 7Z 举报

正点原子F429开发板上的RGB屏幕移植LittleVGL 6.0.2是一个在嵌入式系统中实现图形用户界面（GUI）的经典案例。LittleVGL是一款开源、跨平台的图形库，适用于资源有限的微控制器，如STM32系列。在这个例程中，我们将探讨如何在不使用触摸功能的情况下，仅通过显示功能来运行LittleVGL。了解STM32F429微控制器是关键。STM32F429是意法半导体（STMicroelectronics）推出的一款基于ARM Cortex-M4内核的高性能MCU，具备浮点运算单元（FPU），适合处理复杂的计算任务，如图形渲染。它的丰富外设接口使其能够轻松连接各种外围设备，包括RGB屏幕。 RGB屏幕通常指的是支持红、绿、蓝三原色显示的液晶显示器。这种屏幕需要与MCU进行通信，常见的接口有SPI、I2C或RGB并行接口。在STM32上，我们可以使用HAL库或LL库来配置相应的接口，以驱动屏幕。 LittleVGL 6.0.2版本是一个强大的图形库，它提供了丰富的图形对象，如窗口、按钮、标签、图像等，并支持动画效果。在移植LittleVGL时，我们需要完成以下步骤： 1. **环境配置**：确保已经安装了STM32CubeMX工具，用于配置微控制器的初始化设置。通过该工具，为RGB屏幕选择合适的接口和时序，并生成对应的代码。 2. **库集成**：将LittleVGL库添加到项目中。可以从官方网站下载源码，或者使用Git克隆。确保库的版本与示例代码一致。 3. **初始化**：在项目主循环前，初始化LittleVGL。这包括创建一个LVGL显示驱动，用于处理屏幕的写入操作。根据RGB屏幕的实际接口，编写显示驱动函数，例如`lv_disp_draw_buf_init()` 和 `lv_disp_drv_register()`。 4. **事件处理**：设置事件调度器，使LittleVGL能够响应屏幕的刷新请求。通常会有一个回调函数，例如`disp_flush()`，用于将LittleVGL的缓冲区内容写入屏幕。 5. **创建界面**：利用LittleVGL提供的API创建用户界面。可以创建窗口、按钮等对象，并设置其属性，如位置、大小、颜色等。 6. **运行和更新**：在主循环中，调用`lv_task_handler()`处理待处理的任务和事件，以及`lv_disp_update()` 更新显示内容。压缩包中的`lvgl_test`文件可能包含了一个简单的示例工程，包括配置文件、驱动代码和测试界面。分析这个文件，可以学习到如何将理论知识应用到实际项目中。通过这个例程，开发者可以学习到STM32F429如何与RGB屏幕交互，以及如何在嵌入式系统中实现图形界面。同时，对LittleVGL的理解有助于开发者设计出更直观、动态的用户界面，提升产品的用户体验。

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收起资源包目录

[例程]正点原子F429 RGB屏幕移植LittleVGL 6.0.2（无触摸，仅显示）（1478个子文件）

libarm_cortexM4l_math.a 2.99MB

libarm_cortexM4lf_math.a 2.95MB

iar_cortexM4b_math.a 2.83MB

iar_cortexM4l_math.a 2.82MB

iar_cortexM4bf_math.a 2.8MB

iar_cortexM4lf_math.a 2.8MB

astyle_c 169B

astyle_h 33B

keilkilll.bat 399B

blue_flower_32.bin 29KB

blue_flower_16_swap.bin 15KB

blue_flower_16.bin 15KB

blue_flower_8.bin 7KB

blue_rose_16.bin 3KB

flower_icon_alpha.bin 1KB

img_bubble_pattern.c 5.79MB

arm_linear_interp_data.c 4.12MB

arm_common_tables.c 987KB

arm_dct4_init_f32.c 809KB

arm_dct4_init_q31.c 637KB

arm_dct4_init_q15.c 494KB

red_flower.c 397KB

arm_rfft_init_f32.c 341KB

imgbtn_img_3.c 339KB

imgbtn_img_4.c 339KB

arm_rfft_init_q31.c 326KB

transform_tests_common_data.c 273KB

arm_rfft_init_q15.c 252KB

stm32f4xx_hal_tim.c 245KB

stm32f4xx_hal_i2c.c 241KB

stm32f4xx_hal_fmpi2c.c 238KB

stm32f4xx_hal_cryp.c 235KB

imgbtn_img_2.c 212KB

imgbtn_img_1.c 212KB

lv_font_roboto_28.c 177KB

stm32f4xx_hal_rcc_ex.c 155KB

stm32f4xx_hal_dfsdm.c 154KB

benchmark_bg.c 133KB

stm32f4xx_hal_uart.c 133KB

stm32f4xx_hal_hash.c 132KB

stm32f4xx_hal_spi.c 125KB

lv_font_roboto_22.c 124KB

arial_20.c 121KB

img_flower_icon.c 114KB

stm32f4xx_hal_eth.c 106KB

stm32f4xx_hal_sd.c 102KB

stm32f4xx_hal_mmc.c 102KB

stm32f4xx_hal_usart.c 102KB

stm32f4xx_hal_fmpsmbus.c 102KB

stm32f4xx_hal_qspi.c 96KB

stm32f4xx_hal_smbus.c 96KB

stm32f4xx_hal_irda.c 96KB

stm32f4xx_hal_dsi.c 89KB

stm32f4xx_hal_smartcard.c 85KB

stm32f4xx_hal_tim_ex.c 83KB

stm32f4xx_hal_sai.c 82KB

stm32f4xx_hal_can.c 81KB

lv_font_roboto_16.c 80KB

stm32f4xx_hal_adc.c 78KB

stm32f4xx_hal_nand.c 77KB

stm32f4xx_hal_lptim.c 76KB

stm32f4xx_hal_dma2d.c 73KB

stm32f4xx_hal_ltdc.c 73KB

stm32f4xx_hal_i2s.c 70KB

stm32f4xx_hal_rtc.c 67KB

apple_icon_alpha.c 65KB

stm32f4xx_hal_pcd.c 64KB

lv_obj.c 64KB

filtering_test_common_data.c 64KB

stm32f4xx_ll_usb.c 63KB

lv_ta.c 62KB

stm32f4xx_hal_rtc_ex.c 61KB

lv_draw_rect.c 60KB

lv_font_roboto_12.c 58KB

stm32f4xx_ll_fmc.c 56KB

arm_cfft_radix4_q15.c 55KB

stm32f4xx_hal_spdifrx.c 54KB

stm32f4xx_ll_rcc.c 51KB

stm32f4xx_ll_sdmmc.c 51KB

stm32f4xx_hal_flash_ex.c 50KB

stm32f4xx_hal_hcd.c 49KB

apple_icon_chroma.c 49KB

stm32f4xx_hal_hash_ex.c 48KB

stm32f4xx_hal_nor.c 47KB

lv_page.c 47KB

stm32f4xx_hal_dac.c 46KB

lv_indev.c 46KB

lv_chart.c 45KB

stm32f4xx_ll_tim.c 45KB

arm_fft_bin_data.c 43KB

arm_conv_partial_fast_q15.c 43KB

stm32f4xx_ll_adc.c 43KB

stm32f4xx_hal_rcc.c 42KB

stm32f4xx_hal_adc_ex.c 42KB

lv_tabview.c 41KB

lv_label.c 41KB

stm32f4xx_ll_fsmc.c 40KB

stm32f4xx_hal_sdram.c 40KB

stm32f4xx_hal_dma.c 40KB

arm_cfft_radix4_q31.c 39KB

共 1478 条

#include "lvgl.h" #include "lv_ex_conf.h" #if LV_DEMO_WALLPAPER && LV_USE_DEMO #ifndef LV_ATTRIBUTE_MEM_ALIGN #define LV_ATTRIBUTE_MEM_ALIGN #endif const LV_ATTRIBUTE_MEM_ALIGN uint8_t img_bubble_pattern_map[] = { #if LV_COLOR_DEPTH == 1 || LV_COLOR_DEPTH == 8 /*Pixel format: Red: 3 bit, Green: 3 bit, Blue: 2 bit*/ 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 0x53, 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