Getting started

UM1996

6/29

DocID028716 Rev 2

2

Getting started

2.1

System architecture

A generic motor control system can be basically schematized as the arrangement of three

main functional blocks (see System functional hardware blocks):



Control block accepts user commands to drive a motor. The X-NUCLEO-IHM08M1 is

based on the STM32 Nucleo board, which provides all the digital signals for effective

motor driving control.



Power block is based on the 3-phase inverter topology. The core of the power block

is the embedded L6398 driver, which contains all the necessary active power and

analog components to perform low voltage PMSM motor control.



Motor the X-NUCLEO-IHM08M1 is able to proper drive a low voltage BLDC/PMSM

motor.

This section describes how to set up different hardware parts before writing and executing

an application on the STM32 Nucleo board with the low-voltage BLDC motor driver

expansion board.

Figure 2: System functional hardware blocks

2.2

Building the system

The X-NUCLEO-IHM08M1 expansion board (Power block in the figure above) is a

complete hardware development platform for the STM32 Nucleo board allowing effective

evaluation of motor control solutions for single BLDC/PMSM motors. For regular board

operation, please follow the steps below:

1.

Plug the expansion board on an STM32 Nucleo main board (Control block) through

the ST morpho connector; there is only one position allowed for this connection.

Ensure that the blue (B1) and black (B2) buttons on the STM32 Nucleo board are not

covered, as shown below.