APM for Pixhawk NSH via USB, Unreadable Codes

I download code from github.com/diydrones, master version. Include Ardupilot, PX4Firmware and PX4Nuttx, build and flash to Pixwark board by eclipse, fly is very well, about all kinds of mode. But when I connection to NSH via USB, I got Unreadable Codes, I appreciate your teaching, thanks a lot. Attach the picture for these question.

[attachment=4]01-Connection to NSH via USB Between Computer and Pixhawk Board.jpg[/attachment]

[attachment=3]02-Detail of Connection.jpg[/attachment]

[attachment=2]03-Top of Pixhawk Board.jpg[/attachment]

[attachment=1]04-Result of TeraTerm Connection.jpg[/attachment]

[attachment=0]05-TeraTerm Software.jpg[/attachment]

@junzai1225,
I believe that the CLI/NSH has been removed from the latest ArduCopter firmware to conserve memory.
Regards,
TCIII GM

[quote=“TCIII”]@junzai1225,
I believe that the CLI/NSH has been removed from the latest ArduCopter firmware to conserve memory.
Regards,
TCIII GM[/quote]

Pretty sure that for APM, not pixhawk.

have you tried 115200 buad? that is the default baud for usb normally.

thanks.
yes, i try all baud, but i got the same result. i try connection by mission planner, got the bottom result. If the app has been removed, are there any other way to connection nsh via usb?
[attachment=0]06-Mission Planner Console Result.jpg[/attachment]