Try to do it: Device Drivers ---> [*] SPI Driver Support ---> [*] SPI character driver
BR, Alan On 9/29/21, murat tologlu <mtolo...@hotmail.com> wrote: > 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? >