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Function RTSendChar

RTSendChar places a character in the send buffer and returns immediately:

void RTSendChar(int Port, Byte Data);

Parameters

Port

Must have value RT_COM1 .. RT_COM4.

Data

The data to send over the port.

The function does not wait for the data to be sent. Rather, the data is sent from the send buffer by a send interrupt as soon as the transmit register of the UART becomes empty. However, the function does wait until space becomes available if the send buffer is full.

Serial Port I/O

Function RTCloseCOMPort

Function RTSendCharTimed