MSCOMM支持大于16个串口限制。
I noticed a few posts about the limitation to port 1-16 of MSComm. As
I completed my generic ASCOM DSLR driver, I wanted to fix this
limitation.
There is a hack that can be done to the mscomm file to increase the
port number to 1-256:
Get an HEX editor
open C:\windows\system
1