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Description
Receive binary data from a serial port within a certain time.
Syntax
RetValue = COMM_TRecv(hComm, NBytes, VariableBuffer, TimeOutInMS)
Returns
Number.
If function time out RetValue = -1 else RetValue = 0
Parameters
Name |
Type |
Optional |
Meaning |
hComm |
Number |
No |
File number used by the COMM_OPEN statement to open the communications port. |
NBytes |
Number |
No |
The number of bytes to read from the open port. |
VariableBuffer |
Variable |
No |
A single string variable that will hold the received data from the serial port. |
TimeOutInMS |
Number |
No |
Time out in milliseconds |
Remarks
Retrieve the NBytes number of bytes from hComm, placing the results in VariableBuffer.
Program execution will halt until NBytes bytes are available in the receiving queue or TimeOutInMS is reached.
Restrictions
See also
Examples
