User manual

Toolbars and buttons134
Copyright © 2007-2013 Pico Technology Ltd. All rights reserved.psw.en r32
Bit stream. Draws a sequence of bits according to binary or
hex data that you specify. The logic high and low levels are
adjustable.
Clear. Deletes the arbitrary waveform.
Normalize. Adjusts the waveform vertically so that it
occupies the full [-1,+1] range.
Undo and Redo. The Undo button reverses the last
change made to the arbitrary waveform. The Redo button
reverses the last action of the Undo button.
Zoom tools. To zoom the time axis in or out, click the "+"
or "-" zoom button and then click on the waveform area.
Click the "100%" button to restore the time axis to its
original scale.
Waveform settings
Standard waveform shapes. Draw a standard waveform
with the settings specified in the numerical controls below
the toolbar. The current waveform will be erased.
Cycles. The number of cycles to draw. This control is used
in conjunction with the Standard waveform shapes
buttons. Select one of the standard waveform shapes and
then enter the number of cycles, and PicoScope will draw
the requested number of cycles of the waveform.
Minimum. When one of the Standard waveform shapes
buttons is pressed, this control sets the minimum signal
level.
Maximum. When one of the Standard waveform shapes
buttons is pressed, this control sets the maximum signal
level.
Duty cycle. When a square, triangular or ramp waveform is
selected using one of the Standard waveform shapes
buttons, this control sets the duty cycle of the signal. Duty
cycle is defined as the time that the signal spends above
zero volts divided by the total cycle time. Thus, a
symmetrical square or triangular wave has a duty cycle of
50%. Reducing the duty cycle shortens the positive part of
the cycle and lengthens the negative part, and increasing
the duty cycle does the opposite.
Other buttons
OK
Copies the waveform from the graphical editor into the
arbitrary waveform generator and returns to the main
PicoScope window.
Apply
Copies the waveform from the graphical editor into the
arbitrary waveform generator and remains in the Arbitrary
Waveform Generator window.