Morris, Are you getting "real" responses, or is the VP just reporting its current settings? If it receives a message it does not recognize due to formatting errors it will just report what its current settings are instead of acting on the command. I'm not sure what would happen if it got a series of commands like this.
Message timing - this has tripped up many users. On power up (or after a reset) make sure you wait at least 5-10 seconds before sending any commands. If messages are received before the processor has finished booting, all sorts of bad things can happen (ask me how I know....) Normally the receiver will just ignore them, but if the timing is JUST RIGHT you can trash the serial port. Randy -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Morris Odell Sent: Friday, February 29, 2008 3:03 PM To: time-nuts@febo.com Subject: [time-nuts] VP oncore problem Hi all, I wonder if anyone can help me with a problem I'm having with a VP Oncore receiver I am building something which includes one of these receivers and it communicates with the host microcontroller via the VP's serial binary link. The host receives messages from the VP just fine. The problem arises when the host tries to send configuration commands to the VP. When this happens the VP only responds to the first of 4 messages (Total: about 40 bytes). It doesn't matter what order they are sent in a continuous string or whether or not there are time delays up to 5 seconds or dummy characters between them, the VP only acknowledges the first one and is deaf to any more. Once the system is restarted it will receive one more message before going deaf again. The VP manual says the serial receive buffer will store up to 2048 characters and act on them sequentially. This is obviously not happening. Am I missing something here? TIA Morris _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.