Serial_Readext; Serial_Write - Conrad C-Control Pro Mega Series Manual

181 C-Control Pro Mega Series
waits until a byte has been received.
Please use Serial_ReadExt() if you work in serial IRQ mode. Serial_Read() only supports polled
mode.
Parameter
serport interface number (0 = 1st serial port, 1 = 2nd serial port )
Return Parameter
received byte from the serial interface

6.15.7 Serial_ReadExt

Serial Functions
Syntax
word Serial_ReadExt(byte serport);
Sub Serial_ReadExt(serport As Byte) As Word
Description
Reads one byte from the serial interface. In opposite to Serial_Read() Serial_ReadExt() returns
immediately even if there is no byte available in the serial port. In this case
Please use Serial_ReadExt() if you work in serial IRQ mode. Serial_Read() only supports polled
mode.
Parameter
serport interface number (0 = 1st serial port, 1 = 2nd serial port )
Return Parameter
received byte from the serial interface
256 (0x100) if there was no byte available

6.15.8 Serial_Write

Serial Functions
Syntax
void Serial_Write(byte serport, byte val);
Sub Serial_Write(serport As Byte, val As Byte)
Description
Example
256 (0x100) is returned.
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