STM32F407G-DISC1(STM32F4 Discovery) Firmware
matsujirushi’s blog - TinyCLR(Japanese)
under which folder is published source code NUCLEO-F401RE
and how to use ComInit
Oh… Mistake tag v0.5.1a.
NUCLEO-F401RE source is NUCLEO-F401RE branch. (here)
And CommInit source is here.
Run the ComInit.exe, startup console application. Enter the COM port index.