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Function
SERIAL_PENDING
Library CRxxxx.LIB
Function symbol
Purpose
The function determinates the number of the data bytes saved
in the serial receiving buffer.
Parameter
Function inputs, none
Function output
Description
SERIAL_PENDING determinates the number of data bytes
received in the receiving buffer. As opposed to the function
SERIAL_RX the contents of the buffer remains unchanged after
calling this function.
The SERIAL functions are the basis for creating a user-specific
protocol for the serial interface.
In general the serial interface is not available to the user as it is
used for the program download and the debugging. If the user
sets the system flag bit SERIAL_MODE to TRUE the interface
can be used. Program download and debugging are
only
possible via the
CAN
interface
.
Name Data type Description
NUMBER WORD number of received data bytes
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