I can find S32V-R3V Schemtic,but I think this is not the SBC-S32V Demo's Schemtic
Hello yongchao yang,
This community space do not cover the topic you need assistance on.
Please create new NXP support case according to following procedure:https://community.nxp.com/docs/DOC-329745
I think you can find the schematic on the SBC S32V page, under Documents and Software section. The direct link for the schematic file is here.
Hope this helps,