Hi @이광철 ,
We defaulted this interface to SPI starting in SDK 1.1.2.
https://docs.modalai.com/voxl2-mini-linux-user-guide/#system-image-17
https://docs.modalai.com/voxl2-voxl2-mini-system-image/#system-image-changelog
It can be converted back to SPI with a kernel change and rebuild if you are able to try that.
https://docs.modalai.com/voxl2-kernel-build-guide/
Enable:
https://gitlab.com/voxl-public/system-image-build/meta-voxl2-bsp/-/blob/qrb5165-ubun1.0-14.1a/recipes-kernel/linux-msm/files/dts/m0104/m0104-modalai-qupv3.dtsi?ref_type=heads#L93
Disable:
https://gitlab.com/voxl-public/system-image-build/meta-voxl2-bsp/-/blob/qrb5165-ubun1.0-14.1a/recipes-kernel/linux-msm/files/dts/m0104/m0104-modalai-qupv3.dtsi?ref_type=heads#L98