Re: Serial Port Interfacing
Okay so how are you opening the Com Port?? what type of LED Display is it? post the offending code so we can debug it for you..
Re: Serial Port Interfacing
If you are seeing garbage it is likely that your port settings are incorrect. Baud rate. Parity, data bits and stop bits must match on both sides, VB adds nothing to a com string. You should receive exactly what you send if your settings match. Otherwise the receiver will be unable to decode the tranmission and will result in garbage.
In other words if your LED panel is set for 9600, n, 8,1 then your comm control must also be set to 9600, n,8,1
Re: Serial Port Interfacing
DataMiser is 100% correct.
before you write any program in VB, use null modem to connect two serial ports (can be on different PCs if you like) and configure ports (use hyperterminal or whatever you use). you will quickly see that you only get correct signal if baud rate, parity, etc. all match.
note, unless you have fully wired cable, do not select hardware handshaking.