[例程]正点原子F429 LTDC 4.3寸 800*480屏幕测试

上传者: tw359303267 | 上传时间: 2025-10-29 17:16:28 | 文件大小: 7.72MB | 文件类型: 7Z
【正点原子F429 LTDC 4.3寸 800*480屏幕测试】是一个关于STM32 F429微控制器利用LCD控制器LTDC(Liquid Crystal Display Controller)进行图形显示的实例教程。STM32 F429是基于ARM Cortex-M4内核的高性能微控制器,具有丰富的外设接口,适用于各种嵌入式应用,特别是需要高分辨率显示的场合。 在嵌入式硬件设计中,LTDC是用于驱动LCD显示屏的关键组件,它可以实现复杂的显示效果,如多层图像混合、透明度控制等。在4.3寸800x480分辨率的屏幕上,LTDC能够充分利用其能力,提供清晰、细腻的视觉体验。 这个测试代码的核心目标是验证LTDC配置的正确性,以及能否成功驱动指定的LCD屏幕显示出图像。通常,这样的测试会包括以下步骤: 1. **初始化LTDC**:配置LTDC的时序参数,如像素时钟频率、帧周期、行周期、行有效时间等,以匹配LCD屏幕的规格。 2. **配置GPIO**:设置用于连接LCD屏的GPIO引脚,如数据线、时钟线、使能信号线等,确保信号传输正常。 3. **配置DMA2D**:STM32中的DMA2D(Direct Memory Access for Pixmap)可以高效地将内存中的数据传输到LCD控制器,减少CPU占用,提高显示效率。 4. **创建显示缓冲区**:为每一帧画面分配足够的内存空间作为显示缓冲区,通常会配置多个缓冲区以实现双缓冲,避免画面撕裂。 5. **绘制图像**:在内存中填充颜色或图像数据,然后通过LTDC将这些数据传送到LCD屏幕。 6. **启动LTDC**:配置好所有参数后,启动LTDC控制器,开始连续显示图像。 7. **更新显示**:根据需要更新显示内容,例如通过改变显示缓冲区的数据或动态改变屏幕参数。 在这个"ltdc_test"项目中,开发者可能包含了初始化配置、主循环更新、中断处理等关键函数,通过调试和运行这个程序,可以检查STM32 F429是否能正确驱动800x480 LCD屏幕,并显示预设的图像或颜色。 对于初学者或开发者来说,理解和掌握这一测试代码有助于深入理解STM32的LTDC接口及其工作原理,进一步可以应用于开发图形界面、多媒体播放器、人机交互界面等复杂应用。在实际项目中,还需要考虑电源管理、抗干扰措施、功耗优化等问题,以实现更高效、稳定的显示系统。

文件下载

资源详情

[{"title":"( 1047 个子文件 7.72MB ) [例程]正点原子F429 LTDC 4.3寸 800*480屏幕测试","children":[{"title":"libarm_cortexM4l_math.a <span style='color:#111;'> 2.99MB </span>","children":null,"spread":false},{"title":"libarm_cortexM4lf_math.a <span style='color:#111;'> 2.95MB </span>","children":null,"spread":false},{"title":"iar_cortexM4b_math.a <span style='color:#111;'> 2.83MB </span>","children":null,"spread":false},{"title":"iar_cortexM4l_math.a <span style='color:#111;'> 2.82MB </span>","children":null,"spread":false},{"title":"iar_cortexM4bf_math.a <span style='color:#111;'> 2.80MB </span>","children":null,"spread":false},{"title":"iar_cortexM4lf_math.a <span style='color:#111;'> 2.80MB </span>","children":null,"spread":false},{"title":"keilkilll.bat <span style='color:#111;'> 399B </span>","children":null,"spread":false},{"title":"arm_linear_interp_data.c <span style='color:#111;'> 4.12MB </span>","children":null,"spread":false},{"title":"image.c <span style='color:#111;'> 3.75MB </span>","children":null,"spread":false},{"title":"arm_common_tables.c <span style='color:#111;'> 987.04KB </span>","children":null,"spread":false},{"title":"arm_dct4_init_f32.c <span style='color:#111;'> 808.96KB </span>","children":null,"spread":false},{"title":"arm_dct4_init_q31.c <span style='color:#111;'> 637.25KB </span>","children":null,"spread":false},{"title":"arm_dct4_init_q15.c <span style='color:#111;'> 493.82KB </span>","children":null,"spread":false},{"title":"arm_rfft_init_f32.c <span style='color:#111;'> 341.23KB </span>","children":null,"spread":false},{"title":"arm_rfft_init_q31.c <span style='color:#111;'> 326.38KB </span>","children":null,"spread":false},{"title":"transform_tests_common_data.c <span style='color:#111;'> 273.04KB </span>","children":null,"spread":false},{"title":"arm_rfft_init_q15.c <span style='color:#111;'> 252.44KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_tim.c <span style='color:#111;'> 245.16KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_i2c.c <span style='color:#111;'> 241.49KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_fmpi2c.c <span style='color:#111;'> 237.64KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_cryp.c <span style='color:#111;'> 235.30KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_rcc_ex.c <span style='color:#111;'> 155.49KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_dfsdm.c <span style='color:#111;'> 153.86KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_uart.c <span style='color:#111;'> 133.07KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_hash.c <span style='color:#111;'> 132.31KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_spi.c <span style='color:#111;'> 124.93KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_eth.c <span style='color:#111;'> 106.48KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_sd.c <span style='color:#111;'> 102.32KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_mmc.c <span style='color:#111;'> 102.32KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_usart.c <span style='color:#111;'> 101.88KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_fmpsmbus.c <span style='color:#111;'> 101.55KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_qspi.c <span style='color:#111;'> 96.49KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_smbus.c <span style='color:#111;'> 95.83KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_irda.c <span style='color:#111;'> 95.59KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_dsi.c <span style='color:#111;'> 88.69KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_smartcard.c <span style='color:#111;'> 85.05KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_tim_ex.c <span style='color:#111;'> 82.80KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_sai.c <span style='color:#111;'> 82.19KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_can.c <span style='color:#111;'> 81.45KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_adc.c <span style='color:#111;'> 78.01KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_nand.c <span style='color:#111;'> 76.63KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_lptim.c <span style='color:#111;'> 76.00KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_dma2d.c <span style='color:#111;'> 73.38KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_ltdc.c <span style='color:#111;'> 72.66KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_i2s.c <span style='color:#111;'> 70.11KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_rtc.c <span style='color:#111;'> 66.91KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_pcd.c <span style='color:#111;'> 64.43KB </span>","children":null,"spread":false},{"title":"filtering_test_common_data.c <span style='color:#111;'> 63.97KB </span>","children":null,"spread":false},{"title":"stm32f4xx_ll_usb.c <span style='color:#111;'> 62.51KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_rtc_ex.c <span style='color:#111;'> 60.70KB </span>","children":null,"spread":false},{"title":"stm32f4xx_ll_fmc.c <span style='color:#111;'> 55.97KB </span>","children":null,"spread":false},{"title":"arm_cfft_radix4_q15.c <span style='color:#111;'> 54.95KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_spdifrx.c <span style='color:#111;'> 53.51KB </span>","children":null,"spread":false},{"title":"stm32f4xx_ll_rcc.c <span style='color:#111;'> 51.37KB </span>","children":null,"spread":false},{"title":"stm32f4xx_ll_sdmmc.c <span style='color:#111;'> 50.66KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_flash_ex.c <span style='color:#111;'> 50.05KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_hcd.c <span style='color:#111;'> 48.84KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_hash_ex.c <span style='color:#111;'> 48.23KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_nor.c <span style='color:#111;'> 47.46KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_dac.c <span style='color:#111;'> 46.08KB </span>","children":null,"spread":false},{"title":"stm32f4xx_ll_tim.c <span style='color:#111;'> 45.03KB </span>","children":null,"spread":false},{"title":"arm_fft_bin_data.c <span style='color:#111;'> 43.27KB </span>","children":null,"spread":false},{"title":"arm_conv_partial_fast_q15.c <span style='color:#111;'> 42.93KB </span>","children":null,"spread":false},{"title":"stm32f4xx_ll_adc.c <span style='color:#111;'> 42.82KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_rcc.c <span style='color:#111;'> 42.44KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_adc_ex.c <span style='color:#111;'> 41.51KB </span>","children":null,"spread":false},{"title":"stm32f4xx_ll_fsmc.c <span style='color:#111;'> 40.18KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_sdram.c <span style='color:#111;'> 39.90KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_dma.c <span style='color:#111;'> 39.87KB </span>","children":null,"spread":false},{"title":"arm_cfft_radix4_q31.c <span style='color:#111;'> 39.04KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_i2s_ex.c <span style='color:#111;'> 38.84KB </span>","children":null,"spread":false},{"title":"arm_conv_fast_q15.c <span style='color:#111;'> 38.48KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_dcmi.c <span style='color:#111;'> 37.58KB </span>","children":null,"spread":false},{"title":"arm_correlate_fast_q15.c <span style='color:#111;'> 36.48KB </span>","children":null,"spread":false},{"title":"arm_cfft_radix4_f32.c <span style='color:#111;'> 34.21KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_sram.c <span style='color:#111;'> 33.94KB </span>","children":null,"spread":false},{"title":"controller_test_common_data.c <span style='color:#111;'> 32.55KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_cec.c <span style='color:#111;'> 31.84KB </span>","children":null,"spread":false},{"title":"stm32f4xx_ll_utils.c <span style='color:#111;'> 31.57KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_pccard.c <span style='color:#111;'> 30.08KB </span>","children":null,"spread":false},{"title":"stm32f4xx_ll_rtc.c <span style='color:#111;'> 30.01KB </span>","children":null,"spread":false},{"title":"arm_fir_f32.c <span style='color:#111;'> 28.48KB </span>","children":null,"spread":false},{"title":"system_stm32f4xx.c <span style='color:#111;'> 26.94KB </span>","children":null,"spread":false},{"title":"system_stm32f4xx.c <span style='color:#111;'> 26.94KB </span>","children":null,"spread":false},{"title":"fir_tests.c <span style='color:#111;'> 26.33KB </span>","children":null,"spread":false},{"title":"fast_math_tests_common_data.c <span style='color:#111;'> 26.12KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_rng.c <span style='color:#111;'> 26.03KB </span>","children":null,"spread":false},{"title":"conv_tests.c <span style='color:#111;'> 25.47KB </span>","children":null,"spread":false},{"title":"arm_conv_partial_q15.c <span style='color:#111;'> 24.55KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_flash.c <span style='color:#111;'> 24.21KB </span>","children":null,"spread":false},{"title":"arm_correlate_q7.c <span style='color:#111;'> 23.71KB </span>","children":null,"spread":false},{"title":"arm_conv_partial_q7.c <span style='color:#111;'> 23.56KB </span>","children":null,"spread":false},{"title":"stm32f4xx_ll_spi.c <span style='color:#111;'> 23.45KB </span>","children":null,"spread":false},{"title":"stm32f4xx_ll_dma2d.c <span style='color:#111;'> 23.04KB </span>","children":null,"spread":false},{"title":"stm32f4xx_hal_pwr_ex.c <span style='color:#111;'> 22.83KB </span>","children":null,"spread":false},{"title":"arm_graphic_equalizer_example_q31.c <span style='color:#111;'> 22.81KB </span>","children":null,"spread":false},{"title":"biquad.c <span style='color:#111;'> 22.76KB </span>","children":null,"spread":false},{"title":"arm_correlate_f32.c <span style='color:#111;'> 22.32KB </span>","children":null,"spread":false},{"title":"arm_mat_inverse_f64.c <span style='color:#111;'> 22.18KB </span>","children":null,"spread":false},{"title":"arm_mat_inverse_f32.c <span style='color:#111;'> 22.18KB </span>","children":null,"spread":false},{"title":"......","children":null,"spread":false},{"title":"<span style='color:steelblue;'>文件过多,未全部展示</span>","children":null,"spread":false}],"spread":true}]

评论信息

免责申明

【只为小站】的资源来自网友分享,仅供学习研究,请务必在下载后24小时内给予删除,不得用于其他任何用途,否则后果自负。基于互联网的特殊性,【只为小站】 无法对用户传输的作品、信息、内容的权属或合法性、合规性、真实性、科学性、完整权、有效性等进行实质审查;无论 【只为小站】 经营者是否已进行审查,用户均应自行承担因其传输的作品、信息、内容而可能或已经产生的侵权或权属纠纷等法律责任。
本站所有资源不代表本站的观点或立场,基于网友分享,根据中国法律《信息网络传播权保护条例》第二十二条之规定,若资源存在侵权或相关问题请联系本站客服人员,zhiweidada#qq.com,请把#换成@,本站将给予最大的支持与配合,做到及时反馈和处理。关于更多版权及免责申明参见 版权及免责申明