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Navigate to the directory containing the MinComm.exe in the command prompt and execute the file.
If you have connected your baseboard to your computer via the RS232 interface you will be able to transfer symbols by pressing keys on your keyboard between the two devices.
PCIe
There is two ways to use the i.MX8M Minis PCIe interface on Trizeps8Mini:
WIFI module on the Trizeps VIII Mini
mPCIe connector on the carrier board
In order to configure the device for either of those, connect the serial interface, hold the “escape” key in the terminal emulator (e.g. TeraTerm or PuTTY) while booting the system to abort booting and stay in U-Boot.
Edit the “pcie” environment variable and set it to either “wifionboard" (WIFI module on the Trizeps) or “extern” (mPCIe connector on the carrier board).
When the U-Boot environment variable is configured correctly the PCIe device will show up in the device manager in windows.
This was verified with a Silex SX-PCEAC2 WIFI module that shows up as an unknown “Network Controller” under “Other devices”, a “LE910C1-EU” LTE module from Telit that gets listed as “LE910C1-EU” and a “SD-MMT01A-1” that gets listed as “PCIE Serial Port”.
Manual driver installation is very likely to be required to actually use the device