Redpitaya RED PITAYA, OPEN SOURCE LAB RED Pitaya V 1.1 Fiche De Données
Codes de produits
RED Pitaya V 1.1
23
Annotation
number
Description
4
Channel enable buttons: They enable or disable channel visualization.
5
Channel freeze buttons: It freezes the current spectrum.
6
Main display.
7
Waterfall diagram for channel 1.
8
Waterfall diagram for channel 2.
9
Frequency range selection: The main frequency range covers DC to 62.5
MHz. Additional frequency ranges starting from DC are available in order
to observe signal behavior at lower frequencies. For details concerning the
frequency range check the specification document.
MHz. Additional frequency ranges starting from DC are available in order
to observe signal behavior at lower frequencies. For details concerning the
frequency range check the specification document.
10
Peak Ch1: It numerically displays the peak marker for channel 1.
11
Peak Ch2: It numerically displays the peak marker for channel 2.
To exit the Spectrum analyzer application click the Red Pitaya logo icon on the top right of the
screen.
4.4 PID controller application
The PID controller application is available as an extension of the Oscilloscope application. The PID
controller implements four basic PID independent building blocks. Each PID basic building block is
identified by two indices i and j that range from 1 to 2 (PIDij). The following PID blocks are
therefore available: PID11, PID12, PID21 and PID22. The first index denotes the output port to
which the PID block is connected, while the second index denotes the connection input port. Each
PIDij building block has the following integer parameters:
controller implements four basic PID independent building blocks. Each PID basic building block is
identified by two indices i and j that range from 1 to 2 (PIDij). The following PID blocks are
therefore available: PID11, PID12, PID21 and PID22. The first index denotes the output port to
which the PID block is connected, while the second index denotes the connection input port. Each
PIDij building block has the following integer parameters:
Set point value: corresponds to the controller reference input voltage expressed in counts (-
8192:8191) (SPij).
Proportional gain: Proportional multiplication factor expressed in counts (-8192:8191)
(KPij).
Integral gain: Integral multiplication factor expressed in counts (-8192:8191) (KIij).
Derivative gain: Derivative multiplication factor expressed in counts (-8192:8191) (KDij).
Integrator reset checkbox: When checked, it resets the integrator register.
The PID controller functionality is available through a drop down menu called “PID controller”.
This menu presents fields corresponding to the PID parameters (see Figure 13). The user can set the
PID coefficients in order to apply feedback to external systems and simultaneously visualize input
signals using the Oscilloscope function.