Hi,

I have esp32-wrover-kit working, SPI2 and SPI3 are already configured for lvgl 
and mmcsd, working properly.

I also enabled SYSTEM_SPITOOL in  Application Configuration --> System 
Libraries and NSH Add-Ons, it works.

However, when I run

nsh> spi bus, I get

BUS   EXISTS?
Bus 0: NO
Bus 1: NO
Bus 2: NO
Bus 3: NO

and therefore I can't use any SPI bus.

What should I do more?

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