rs232

I have a hardware with USB for communicate between computer to hardware. The vendor not giving any APIs to connect to the device. They give me a protocol. But the protocol is serve for RS232 mode. I ask the vendor whether this protocol can be apply to the USB, they said 'YES'.. So, I'm...

Hello I don't know where the Problem is but i can't connect to COM1 with VB.Net With Hyperterminal i can connect so the port insn't in use. Can you help me correcting this code? Thank you vbcom PS: Full Code in Attachment Private Sub SendData() On Error GoTo hilfe Dim...