Serial port stops sending data...

nikhilec2007

Member
Join Date
Dec 2014
Location
Gujarat
Posts
36
Hi,
In one of my application with RSView32, I am sending SMS using VBA command and dongle.
When I am testing/debugging code, it runs fine every time.

When triggered same code with events, most of the time it runs well.
But after 7 to 8 triggeres, it stops sending SMSs.

Now, If next event is triggered, it will send SMSs from last trigger as well this trigger.

In between, If i will debug code, then again it will send ALL UNSENT msgs as well debugged VBA sms code.

Earlier I had doubt on dongle, that msgs are some time UNSENT and pending in outbox for dongle. But recently, to troubleshoot, serial port and dongle connection, when I opened HYPER TERMINAL, it started sending all AT COMMANDS, which are generated by my VBA code earlier during VBA Code execution.

From this, I assume, my System is sending all AT Commands on time but sometimes, Serial port (USB) is not sending those AT Commands to dongle.

If anyone has experience this kind of problem in past, please let me know, whether I am right or wrong.

What can I do to eliminate this problem?

All suggestions are welcome..
 

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