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Download What is CUBLOC?
Transcript
Bfree( ) Variable = BFREE(channel, buffertype) Variable : Variable to store results (No String or Single) channel : RS232 Channel number (0~3) buffertype: 0=Receive Buffer, 1=Send Buffer This function will return the number of free bytes that either receive buffer or send buffer has currently. For sending data, this command can be used to avoid overflowing the buffer. DIM A AS BYTE OPENCOM 1,19200,0, 100, 50 IF BFREE(1,1)>10 THEN PUT “TECHNOLOGY” END IF If buffer size is set to 50, up to 49 free bytes can be returned. The function will return 1 less than the set buffer size when buffer is empty. 110
