UM0432 datasheet(24/53 Pages) STMICROELECTRONICS

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Motor control operations

UM0432

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7.4.2

Configuring the firmware using the GUI

Before actually using the firmware, it must be configured. The term configure indicates the

act of selecting a specific driving strategy, such as open or closed loop, voltage or current

mode, and so on. Customized parameters such as current limitation, motor settings, driving

related parameters and so on are also indicated.

The firmware is configured by compiling a set of ".h" files inside the source folder and writing

a series of values as fields of #define statements. To perform this configuration, solid

knowledge of the hardware and architecture of the firmware is required. Otherwise, the

configuration tool provided inside the CD-ROM called "LV ST7MC - GUI" can be used. This

tool allows you to choose and set all the required parameters visually and enables the

software to automatically generate the required ".h" files (Table 7 shows the ".h"

configurations files related to each firmware).

For a detailed description of the configuration files and how to manually customize the

related parameters refer to AN1905 and AN1947.

7.4.3

Motor type selection

Once the "LV ST7MC - GUI" is started, the Motor Type Choice dialog box appears (see

Figure 13). In this window, you can select the kind of motor (PM brushless) and the driving

strategy (sinusoidal or trapezoidal).

The two options are:

●

"3-phase BLAC/DC (trapezoidal)" to select a PM brushless motor trapezoidal-driven, or

●

"3-phase PMAC Motor (sinewave)" to select a PM brushless motor sinusoidal-driven.

Table 7.

".h" configuration files

Firmware name

Configuration files

BLAC_3PH_SR

PMACparam.h

config.h

Mainparam.h

MTCparam.h

BLDC_3PH_SL

MTC_Settings_Sensorless.h

spec_settings.h

version.h

BLDC_3PH_SR

MTC_Settings_Sensor.h

spec_settings.h

version.h

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