Why did they build this device using Sockets that need pins instead of Jumpers to Flash when NOR fails!!! - Suppossed to be a fail safe device - mines fkd and now need some different pin jumper leads to TFTP the ROM back to it - £90 notes - Rather buy a Cisco Router
Who created this Device as they are sht with circuitry design - Good Chips bad circuitry
For those of us not in the picture, what exactly are you talking about?
For someone like me, without hands on experience, switching between NOR/ NAND seems to be a dip switch on the outside.
The only jumper would be for NOR write protect.
The mikroBUS header would primarily be for mikroBUS addon modules, a standardized socket for these modules (and yes, as a side effect it does provide access to I²C/ SPI and similar low-level SOC busses). For that to work, to be compatible with mikroBUS modules, it must be two rows of female header at the given spacing.
JTAG would be a standardized header/ pinout again, but I don't think you refer to that one. Serial (if you opt not to use the USB-C on the front) should be standard 2.54mm DuPont again.