I tried running prolific usb - serial comm port but there is no communication.ĭo i need to change the program in c# application.

Is the device class same for both : usb serial port (mcp2200 ) and (prolific usb-serial comm port). That is why i want to use prolific usb-serial comm port. Just fishing for some ideas on the best way to approach this one, short of going to. Trying to come in via the serial port with a PL2303 serial to USB converter is giving me ZERO communication as well. But the mcp2200 gets disconnected very often and there is error that usb device not recognised. Long story short, the previous owner of this switch has changed the default user/pass combo so Im unable to login via the web GUI or via Telnet. The c# application wass made using mcp2200 module in mind. Please find the attached images for reference. Mcu tx-rx ->max232->db9 female connector -> dm9 m connector on module pcb->max232 on module pcb ->mcp2200 on module pcb-> usb connector on module pcb ->cable usb-> usb port on laptop.

So i am connecting the system as follows : I have build an c# application which connects to an embedded mcu based hardware via uart communication.

Prolific usb to serial comm port yellow