HBM PX401, Operating Manual

Page: 215 / 552

Internal calculation channels
PMX
A4354-2.2 HBM: public
215
13.2.4.4 Signal generators (rectangle, triangle, sine)
Function Generates a periodic or non‐periodic signal
Inputs Enable bit (digital input)
Starts the generation. When low, the generator stops and
outputs the offset value. When enable is high again, the
generator does not continue where it stopped but starts with a
new period.
Outputs Generates signal out
0
Parameters - Wave form [sine , rectangle , noise, counter, constants,
ramp]
- Frequency 0 .. Data rate/4 (default 19200/4 Hz = 4800 Hz)
(only effective with sine , rectangle , triangle)
- Amplitude
- Offset
- Periods
Number of periods to be played. Only effective with
periodical waveforms. Zero means endless operation.
Maximum value 2
31
-1.
When the periods have been played, the offset value is
output. For restart, the enable input must toggle to low, then
high.
The generation stops immediately when the enable input
gets low, even when the periods were not fully played.
Default Sine , amplitude 1.0, offset 0.0, Frequency 100 Hz, 0 periods
(=endless)
Enable input = constant high
Exception handling If the range is overrun, Not­a­Number is output.
The noise signal is generated from a pseudo­random
series of numbers with the period 2
31
.
The counter counts upwards with the data rate (default
19,200 Hz)
.
Range: -Amplitude to +Amplitude (with offset = 0).