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BK Precision 4070A User Manual Rev.2.2
76
'------------------------------------------------------------------------------
' Flush all Rx chars from Port 1 buffer
'------------------------------------------------------------------------------
FlushBuff1:
IF LOC(1) = 0 THEN GOTO DoTimeout1
a$ = INPUT$(LOC(1), #1) ' Get all waiting chars in Rx buffer
' Now wait for a time-out time to make sure no new stuff is coming in.
DoTimeout1:
CALL Delay(.8) ' Do a 800 mS delay
IF LOC(1) <> 0 THEN GOTO FlushBuff1 ' If something came in during
' our time-out, flush it
RETURN
'------------------------------------------------------------------------------
' Wait for x mS
' Function to delay x number of mS.
'------------------------------------------------------------------------------
SUB Delay (X%) STATIC
start! = TIMER ' Returns no. of secs since midnight.
' Example: 65445.15
DelayLoop: ' Do a x mS delay
IF TIMER < start! + X% / 1000 THEN GOTO DelayLoop
END SUB
'------------------------------------------------------------------------------
' Wait for a keypress
'------------------------------------------------------------------------------
SUB Pause STATIC
DO
LOOP UNTIL INKEY$ <> "" ' Wait for keypress to continue
END SUB