Esp32, SD card, lvgl

[Armin]

Hello,

What MCU/Processor/Board and compiler are you using?

ESP32

What do you want to achieve?

Initializing SD card and LVGL.

What have you tried so far?

I took the sample project from here, and add the SD card code from here.

Now I would like to combine the two codes.

The LVGL and the SD they got their own SPI init, which will lead to confliction and shows:

SPI bus already initialized.

Both of the sample codes works separately.

What is the solution?

Thanks

[sukeshak]

You can use this sample if both display and SD card are on the same SPI bus.
set shared in LovyanGFX and use SD card without initializing the bus again.

GitHub - sukesh-ak/ESP32-LVGL8x-SDSPI: ESP32 / ESP32-S3 with LVGL widgets using...

[100ask]

I have written examples of esp idf and arduino based on esp32s3,
You can find reference here:

• demo

  • esp-idf: esp-idf-learn/07_integrated/01_lcd_sd_card_fs_joypad_lv_lib_100ask at master · 100askTeam/esp-idf-learn · GitHub
  • arduino: esp-arduino-learn/examples/08_integrated/01_lcd_sd_card_fc_joypad_fs_lv_lib_100ask at master · 100askTeam/esp-arduino-learn · GitHub

• drive:

  • esp-idf components: esp-idf-components/fs_100ask_drivers at master · 100askTeam/esp-idf-components · GitHub
  • arduino: In the sample code

Good luck!

[Armin]

Thanks,

To any one who might face this issue, this can also be helpful:

GitHub - C47D/m5stack_sd_display_shared_spi: playground to solve an issue...