UM0324 datasheet(24/105 Pages) STMICROELECTRONICS

24 / 105 page

Getting started with the library

UM0324

24/105

Figure 8.

Torque vs. speed characteristic curve

The following parameters are required only to enter the field weakening operation (constant

power region begins beyond the RATED_FREQ boundary mentioned above):

●

hFlux_Reference

: this look-up table (256 signed 16-bit values) provides reference

values of current ids (expressed in q1.15 format), according to increasing stator

frequencies (see Section 4.4.4 on page 63);

Note:

The first element of the table should have the same value as the hNominal_Flux

parameter.

●

hTorque_Reference

: this look-up table (256 signed 16-bit values) provides

saturation values of current iqs (expressed in q1.15 format), according to increasing

stator frequencies (see Section 4.4.4 on page 63).

2.3

How to define and add a c module

This section describes with an example how to define and include a new module in a project

based on the library. The example is based on the addition of two files: my_file.c and the

corresponding header file my_file.h.

Create a new file.

You can either copy and paste an existing file and rename it, or in the File menu,

choose New, then click the File icon and save it in the right format (*.c, *.h

extension), as shown in Figure 9.

Declare the new file containing your code in the toolchain workspace.

To do this, simply right-click in the workspace folder, then choose the Add Files sub-

menu. The new file is automatically added to the workspace and taken into account for

the compilation of the whole project.

UM0324 Scheda tecnica(PDF) 24 Page - STMicroelectronics