main.c

/******************************************************************************
* File Name:   main.c
*
* Description: This is the source code of the [CE234664 - mtb-example-hal-pwm-dt]
*              for ModusToolbox.
*
* Related Document: See README.md
*
*
*******************************************************************************
* Copyright 2022, Cypress Semiconductor Corporation (an Infineon company) or
* an affiliate of Cypress Semiconductor Corporation.  All rights reserved.
*
* This software, including source code, documentation and related
* materials ("Software") is owned by Cypress Semiconductor Corporation
* or one of its affiliates ("Cypress") and is protected by and subject to
* worldwide patent protection (United States and foreign),
* United States copyright laws and international treaty provisions.
* Therefore, you may use this Software only as provided in the license
* agreement accompanying the software package from which you
* obtained this Software ("EULA").
* If no EULA applies, Cypress hereby grants you a personal, non-exclusive,
* non-transferable license to copy, modify, and compile the Software
* source code solely for use in connection with Cypress's
* integrated circuit products.  Any reproduction, modification, translation,
* compilation, or representation of this Software except as specified
* above is prohibited without the express written permission of Cypress.
*
* Disclaimer: THIS SOFTWARE IS PROVIDED AS-IS, WITH NO WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, NONINFRINGEMENT, IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress
* reserves the right to make changes to the Software without notice. Cypress
* does not assume any liability arising out of the application or use of the
* Software or any product or circuit described in the Software. Cypress does
* not authorize its products for use in any products where a malfunction or
* failure of the Cypress product may reasonably be expected to result in
* significant property damage, injury or death ("High Risk Product"). By
* including Cypress's product in a High Risk Product, the manufacturer
* of such system or application assumes all risk of such use and in doing
* so agrees to indemnify Cypress against all liability.
*******************************************************************************/
#include "cyhal.h"
#include "cybsp.h"

/*******************************************************************************
* Macros
********************************************************************************/
#define PWM_DUTY_CYCLE          (50u)
#define PWM_TARGET_FREQUENCY    (1000u)
#define DEAD_TIME               (250u)

/*PWM line and compl_line output pins*/
#define PWM_LINE_PIN            (P0_0)
#define PWM_LINE_COMPL_PIN      (P0_1)

/*******************************************************************************
* Function Prototypes
********************************************************************************/

/*******************************************************************************
* Global Variables
********************************************************************************/
 cyhal_pwm_t pwm_obj;

/*******************************************************************************
* Function Name: main
********************************************************************************
* Summary:
* This main achieve the PWM output with dead time mode. PWM line pin and
* PWM compl_pin output the 1KHz wave with left side dead time 250[us]
* Return: int
*
*******************************************************************************/
int main(void)
{
    cy_rslt_t rslt;

    /* Initialize the device and board peripherals */
    rslt = cybsp_init() ;
    if (rslt != CY_RSLT_SUCCESS)
    {
        CY_ASSERT(0);
    }

    __enable_irq();

    /* Initialize a left-aligned, continuous running PWM signal and assign normal and inverted outputs to pins*/
    rslt = cyhal_pwm_init_adv(&pwm_obj, PWM_LINE_PIN, PWM_LINE_COMPL_PIN, CYHAL_PWM_LEFT_ALIGN, true, DEAD_TIME, false, NULL);
    if (rslt != CY_RSLT_SUCCESS)
    {
        CY_ASSERT(0);
    }

    /*Set a duty cycle of 50% on the normal PWM output with a frequency of 1KHz*/
    rslt = cyhal_pwm_set_duty_cycle(&pwm_obj, PWM_DUTY_CYCLE, PWM_TARGET_FREQUENCY);
    if (rslt != CY_RSLT_SUCCESS)
    {
        CY_ASSERT(0);
    }

    /*Start the PWM output*/
    rslt = cyhal_pwm_start(&pwm_obj);
    if (rslt != CY_RSLT_SUCCESS)
    {
        CY_ASSERT(0);
    }

    for (;;)
    {

    }
}


/* [] END OF FILE */