Search found 27 matches

by ESP_lzw655
Tue Oct 10, 2023 12:03 pm
Forum: ESP-BOX
Topic: Drawing on Display - Some basic code needed please
Replies: 1
Views: 23662

Re: Drawing on Display - Some basic code needed please

Hi Phil, you can try to use our official library https://github.com/esp-arduino-libs/ESP32_Display_Panel. It supports most Espressif development boards which have an LCD screen and be downloaded from Arduino IDE. For detailed info and usage, please check the README in the repository.
by ESP_lzw655
Tue Sep 12, 2023 1:50 am
Forum: ESP-IDF 中文讨论版
Topic: 【已解决】ESP32-S3如何驱动QSPI接口的LCD?
Replies: 10
Views: 5578

Re: 【已解决】ESP32-S3如何驱动QSPI接口的LCD?

包括 SPD2010、SH8601 和 GC9B71 在内的 QSPI LCD 驱动,已经上传到 Espressif Registry,并且提供了一个 qspi_with_ram 的示例,可以从 Espressif Registry 中上述驱动的主页下载。 SPD2010: https://components.espressif.com/components/espressif/esp_lcd_spd2010 SH8601: https://components.espressif.com/components/espressif/esp_lcd_sh8601 GC9B71: https:/...
by ESP_lzw655
Tue Aug 22, 2023 8:08 am
Forum: ESP IoT Solution 中文讨论版
Topic: RGB屏幕闪烁问题【已解决】
Replies: 1
Views: 16938

Re: RGB屏幕闪烁问题

请问,多缓冲区是指设置多个 RGB 的帧 buffer 吗(num_fbs),还是说多个 LVGL buffer?能否提供这部分代码看下?
by ESP_lzw655
Thu Aug 17, 2023 5:37 am
Forum: ESP-IDF 中文讨论版
Topic: 【已解决】ESP32-S3如何驱动QSPI接口的LCD?
Replies: 10
Views: 5578

Re: ESP32-S3如何驱动QSPI接口的LCD?

seanfan@qq.com wrote:
Fri Jun 30, 2023 12:01 pm
目前项目用ESP32-S3来驱动QSPI接口的LCD,驱动IC为GC9B71(规格书参考附件)。试着在ESP-IDF的范例spi_lcd_touch_example_main基础修改了一下,没办法点亮屏,已修改部分请参考附件代码。发现应该要修改esp_lcd_panel_io_spi.c这个文件来适配QSPI的时序。
请问能否提供一些修改指南?或者类似项目参考,谢谢!
请参考最新回复。
by ESP_lzw655
Thu Aug 17, 2023 5:35 am
Forum: ESP-IDF 中文讨论版
Topic: 【已解决】ESP32-S3如何驱动QSPI接口的LCD?
Replies: 10
Views: 5578

Re: ESP32-S3如何驱动QSPI接口的LCD?

After using this example(SPD2010), I lit up the screen, but encountered the same problem as in the video(https://www.bilibili.com/video/BV1Lj41197Je/?share_source=copy_web&vd_source=22bec63878894fb747aa6bda6a91f2ad), which has incorrect pixels when only refreshing the arc.Other shapes were normal. ...
by ESP_lzw655
Tue Aug 08, 2023 8:09 am
Forum: ESP-IDF 中文讨论版
Topic: 【已解决】ESP32-S3如何驱动QSPI接口的LCD?
Replies: 10
Views: 5578

Re: ESP32-S3如何驱动QSPI接口的LCD?

Sorry, I can't see the specific reason right now either.

However, the probability of LVGL having a bug is relatively low, as we've successfully run this demo on other screens.

In the next two weeks, I'll attempt to drive the SPD2010 and GC9B71 displays to see if the same issue arises.
by ESP_lzw655
Tue Aug 08, 2023 7:44 am
Forum: ESP IoT Solution 中文讨论版
Topic: 【已解决】esp32s3联网操作时会有短暂的屏幕整体左右漂移
Replies: 1
Views: 4853

Re: esp32s3联网操作时会有短暂的屏幕整体左右漂移

请参考如图所示的 “XIP PSRAM + Bounce buffer” 的方法,如果还是存在漂移,请参考 https://github.com/espressif/esp-dev-ki ... m-120m-ddr 使能 “PSRAM 120M DDR”。
uTools_1691480572209.png
uTools_1691480572209.png (70.47 KiB) Viewed 4812 times
by ESP_lzw655
Wed Jul 19, 2023 2:26 am
Forum: ESP-IDF 中文讨论版
Topic: 【已解决】ESP32-S3如何驱动QSPI接口的LCD?
Replies: 10
Views: 5578

Re: ESP32-S3如何驱动QSPI接口的LCD?

可以参考 https://github.com/espressif/esp-idf/is ... 1640708335 提供的 SPD2010 示例,驱动原理是一样的。
by ESP_lzw655
Wed Jul 19, 2023 2:14 am
Forum: ESP-IDF 中文讨论版
Topic: 请提供一个乐鑫开发板驱动板载RGB的驱动代码
Replies: 3
Views: 1575

Re: 请提供一个乐鑫开发板驱动板载RGB的驱动代码

是的,ESP32-S3-DevKitC-1 有 v1.0 和 v1.1 两个版本,它们的 RGB LED 驱动引脚不一样,文档如下: v1.0: https://docs.espressif.com/projects/esp-idf/en/latest/esp32s3/hw-reference/esp32s3/user-guide-devkitc-1-v1.0.html v1.1: https://docs.espressif.com/projects/esp-idf/en/latest/esp32s3/hw-reference/esp32s3/user-guide-devkitc-1.htm...
by ESP_lzw655
Tue Jul 18, 2023 11:50 am
Forum: ESP-IDF 中文讨论版
Topic: 【已解决】ESP32-S3如何驱动QSPI接口的LCD?
Replies: 10
Views: 5578

Re: ESP32-S3如何驱动QSPI接口的LCD?

目前官方仅适配过 ST77903 这一款 QSPI LCD(无内置 GRAM),参考 issue https://github.com/espressif/esp-idf/is ... 1622838282.

而 GC9B71 有内置 GRAM,驱动方式有很大不同,但通过自行配置 SPI 是可以实现的,关键在于发送颜色数据时 spi_transaction_t 需要使用 SPI_TRANS_MODE_QIO 标志使能 4-bit 模式,而发送命令时 spi_transaction_t 仅使用 1-bit。