How to do I control IMXRT1170 SEMC Pin Mux ?

[otaissey]

I will connect the two external memory SDRAM and SRAM to the SEMC module.

How do I control the switching of SEMC Pin Mux ?

[jay_heng]

Both SDRAM and SRAM use the same SEMC DATA, ADDR lines, and you need to use different SEMC CS to control the switching.