foxBMS - Unit Tests  1.2.0
The foxBMS Unit Tests API Documentation
pwm.h File Reference

PWM driver for the TMS570LC43xx. More...

#include "general.h"
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Functions

void PWM_StartPwm (void)
 Start the PWM (starts all configured ePWM channels) More...
 
void PWM_StopPwm (void)
 Stop the PWM (stops all configured ePWM channels) More...
 
void PWM_SetDutyCycle (uint16_t dutyCycle_perm)
 Set the duty cycle of the PWM (currently only channel 1A) More...
 
int16_t TEST_PWM_GetLinearOffset (void)
 

Detailed Description

PWM driver for the TMS570LC43xx.

SPDX-License-Identifier: BSD-3-Clause

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Author
foxBMS Team
Date
2021-10-07 (date of creation)
Updated
2021-10-08 (date of last update)
Prefix
PWM

This module uses the PWM hardware of the MCU in order to generate a PWM signal. Currently, the implementation uses only the ePWM (not the HET) and supports only setting a duty cycle (in percent). For the module to work currently, the function etpwmInit() has to be called before using API of this module.

Definition in file pwm.h.

Function Documentation

◆ PWM_SetDutyCycle()

void PWM_SetDutyCycle ( uint16_t  dutyCycle_perm)

Set the duty cycle of the PWM (currently only channel 1A)

Duty cycle values that are out of the range that is supported are limited to the threshold values.

Parameters
[in]dutyCycle_permduty cycle in permill

Definition at line 123 of file pwm.c.

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◆ PWM_StartPwm()

void PWM_StartPwm ( void  )

Start the PWM (starts all configured ePWM channels)

In order for this function to work, it is absolutely necessary that etpwmInit() is called first.

Definition at line 107 of file pwm.c.

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◆ PWM_StopPwm()

void PWM_StopPwm ( void  )

Stop the PWM (stops all configured ePWM channels)

Definition at line 115 of file pwm.c.

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◆ TEST_PWM_GetLinearOffset()

int16_t TEST_PWM_GetLinearOffset ( void  )

Definition at line 145 of file pwm.c.