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...
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