Posts: 13
Joined: Wed Jan 10, 2007 3:19 pm
Location: Iran

I need urgent help

Sat Jul 19, 2008 3:25 pm

Dear Sir

I am using Franson Serial Port for communication via GSM modem.
I have created some thread to use this port, and i check the use of port via Mutex and I have controled it, but i face this error many times.

<font color="red">
A managed NullRefrenceException Occured at Port::DoEvent+0X22

Port::Doevent + 0x22
Port::m_dispatch_func + 2x97</font id="red">

Thank you in advance for any kind attention

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