UM0839

Configure L9942 graphic user interface

Doc ID 16519 Rev 2

23/32

Figure 16.

Motor control command field

11.2.1

EN switch

This switch controls EN input signal of L9942 to make the device in standby mode or active

mode.

11.2.2

PWM duty-cycle and frequency control

●

PWM duty-cycle control

Figure 17.

Example of PWM cycle control

●

PWM frequency control

Range

[0, 100] %

Step

1

Default

50%

Range

[20,1000] Hz

Step

1

Default

200Hz