ST7FLITE05 Software Description

AN2316 - Application Note

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4.2

Firmware Configuration

The user-modifiable parameters are defined in “Param.h” header file, particularly:

4.2.1

Switching Frequency

#define PWM_FREQUENCY Fx0kHz

Use F20kHz, or F40kHz to set the respective 20kHz or 40kHz frequencies (see

Section 4.1.1 on page 17).

4.2.2

Maximum Duty Cycle

#define MAX_DUTY 90 //in percentage

Use the PWM frequency and the DCR register values to set the duty cycle (see

Section 4.1.2).

4.2.3

Minimum Duty Cycle

#define MIN_DUTY 10 //in percentage

Use the PWM frequency and the DCR register values to set the duty cycle (see

Section 4.1.2).

4.2.4

Hysteresis

#define HYSTERESIS 5 //in percentage

Use the PWM frequency and the DCR register values to set hysteresis (see

Section 4.1.2).