B&K 4071 user manual Close System

'------------------------------- Main Loop --------------------------------

'This loop calculates each point of the arbitrary waveform.

'It then calls one of several subroutines (depending on what format you

'would like the data in) to send the data to the 4071

NUMPOINTS = 80	' Total	number of points generated
Phase# = 0	' Reset	sinewave phase accumulator		to 0
PhaseInc# = 2 * 3.1415926# / NUMPOINTS			' Phase goes 0 to 2*Pi

'This loop generates the points and sends them to the 4071 FOR PointNumber = 1 TO NUMPOINTS

'Note: Here we call a function to generate a new point value. Basic returns

'a value from SIN() which ranges from -1.0 to +1.0. You may insert

'your own function here, but be sure that the returned value ranges

'from -1.0 to +1.0 since the subroutines below expect "PointVal"

'to range from -1.0 to +1.0.

PointVal = SIN(Phase#)

' Pick one		of the following		subroutines depending			on desired data		format:
'	GOSUB	SendFloat		' Send Floating Point,			ex: 3.67e-2, -.586, .012e1,...
	GOSUB SendHex		' Send Hexadecimal, ex: fed7,124,63c8...
'	GOSUB	SendInteger	'	Send Integer, ex: -2047,185,2047...
'	GOSUB	SendBinary	'	Send Binary,		ie <hi byte>,<low		byte>,...
	Phase#	= Phase# + PhaseInc#			'	Advance the phase		of our	sinusoid
	NEXT PointNumber				'	Continue	loop and	generate more points

'All points have now been generated and sent to the 4071.

'When the 4071 hasn't received any chars over the serial port for a

'1 second time-out, it assumes that all points have been sent and starts

'generating the waveform.

ArbExit:
CLOSE : SYSTEM	' Close the comm port and exit the program.

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BK Precision 4071 User Manual Rev.2.2