outport.vi erratic response.

[Kura]

I didn't say, cause I unfortunately didn't know. 😕 I'm very new to serial communication.  So yeah, its probably the start and stop bit. If I send through outport.vi without using any VISA stuff, will the start and stop bit still be sent? Cause I can't have any start stop bits or other "extra" stuff or the model will crash.

Message Edited by Kura on 08-12-2005 02:32 PM

[rolfk]

Probably yes, but you will have to do quite some extra stuff in the beginning to setup the serial port correctly. What you will have to do however can be quite complicated and I can't give you details. It is more than 15 years that I last programmed a serial chip on register level and I have no intentions to change that.

Rolf Kalbermatter

[Kura]

Oh, well, sending a byte through the outport.vi with all of the VISA stuff removed seems to be working as long as I give it about 25 milliseconds between each send. Should this actually work or is it possible that bad data is being sent along with the good data? (Since one of my testing programs seems to be recieving all of my characters, but another program is having some issues after the characters are sent through an antenna before being recieved. The first program is recieving the bytes directly through a serial cable.)