ESP32-S3 LCD with quad PSRAM

[bruchmueller]

Dear,

there is support for the LCD controller and LVGL on the IDF, with an example https://github.com/espressif/esp-idf/bl ... ple_main.c

But this page says, that a octal PSRAM is required (or just suggested). For now, we have the ESP32-S3-WROOM-1-N8R2, what have just 2MB PSRAM and quad lines. Our boards will arrive in 2 weeks, so I cant try it right now.

Question is, can quad PSRAM modules used as well for the ESP IDF LCD driver? I understand, that the memory bandwidth is lower, so the refresh rate will be lower, too. But will it work with reduced refresh rate, with the ESP32-S3-WROOM-1-N8R2?

Thank you

[ESP_Sprite]

It's merely suggested, as long as you can stay within the (lower) bandwidth limits quad PSRAM will work fine.