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I have an application which connects with an external protocol using serial communication.
I need know if the wakeup bit is set on each packet it sends to me (the 9 bit), and as communication rates must be below 40ms, and response must be sent under 20 ms. The framework, encapsulates the bits read from the port, and only send back the 8 bits of data to me. Also, I cannot wait for the parity error event, because of timing issues.
I need to know how can I read the 9 bit, or if there is a free alternative to http://www.wcscnet.com/CdrvLBro.htm