This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

PWM generation without configuring HET in halcogen.

Other Parts Discussed in Thread: HALCOGEN

I am trying to generate PWM without configuring HET in halcogen. I have written some codes will it work???

/** @file sys_main.c 
*   @brief Application main file
*   @date 15.July.2015
*   @version 04.05.00
*
*   This file contains an empty main function,
*   which can be used for the application.
*/
/* 
* Copyright (C) 2009-2015 Texas Instruments Incorporated - www.ti.com 
* 
* 
*  Redistribution and use in source and binary forms, with or without 
*  modification, are permitted provided that the following conditions 
*  are met:
*
*    Redistributions of source code must retain the above copyright 
*    notice, this list of conditions and the following disclaimer.
*
*    Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the 
*    documentation and/or other materials provided with the   
*    distribution.
*
*    Neither the name of Texas Instruments Incorporated nor the names of
*    its contributors may be used to endorse or promote products derived
*    from this software without specific prior written permission.
*
*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
*  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
*  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
*  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
*  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
*  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
*  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
*  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
*  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
*  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
*  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/


/* USER CODE BEGIN (0) */
/* USER CODE END */

/* Include Files */

#include "sys_common.h"
#include "het.h"
//#include "gio.h"
/* USER CODE BEGIN (1) */
/* USER CODE END */

/** @fn void main(void)
*   @brief Application main function
*   @note This function is empty by default.
*
*   This function is called after startup.
*   The user can use this function to implement the application.
///USER CODE BEGIN (2)
// USER CODE END */
hetSIGNAL_t Duty_Period1;
hetSIGNAL_t Set_Duty_Period1;
void main(void)
{
	//int i;
	//gioInit();
	//gioSetDirection(hetPORT1, 0xBFFFFFFF); // 30 Input, 10 Output
	//gioSetBit(hetPORT1, 10, 1);
	//while(gioGetBit(hetPORT1, 30) == 0);
	hetInit();
	pwmStart(hetRAM1, pwm1);
	Set_Duty_Period1.duty = 75;
	Set_Duty_Period1.period = 2000;
	pwmSetSignal(hetRAM1, pwm1, Set_Duty_Period1);

	//unsigned int k;
	//unsigned int i;
	//while(1)
	//{
	//for(i=0;i<100;i++)
		//k=i*i;
//}
}
/* USER CODE BEGIN (3) */
/* USER CODE END */

  • Hi Manjunathan,

    What do you mean "without configuring HET"?
    In the file you have shared, hetInit() is called. This sets up the HET ram with a standard program generated by HALCoGen. The pwmSetSignal() will configure the required PWM signal to the given duty and period. From the file, I am not able to recognize any specific shortcomings(I'm assuming you're setting all required configuration parameters in the HALCoGen GUI).

    Thanks and Regards,
    Vineeth

  • Hello, I've seen your code; I think you should not have a PWM output, because not configure the pin as an output.
    Here is a code of how to do this!
    If you need help, please ask, Greetings.

    ---------------------------------------------------------------------------------------------------------------------------------------------------------

    hetSIGNAL_t Duty_Period1;

    hetSIGNAL_t Set_Duty_Period1;

    typedef enum {
    pinRead, pinWrite
    } t_pinDir;


    typedef struct {
    gioPORT_t *port; // the port the signal line is on
    uint32 bit; // the signal line
    } Pin_t;

    void SetPinDirection(const Pin_t *pin, t_pinDir dir) ;

    void main(void)

    {

    //int i;

    //gioInit();

    //gioSetDirection(hetPORT1, 0xBFFFFFFF); // 30 Input, 10 Output

    //gioSetBit(hetPORT1, 10, 1);

    //while(gioGetBit(hetPORT1, 30) == 0);

    hetInit();

    pwmStart(hetRAM1, pwm1);

    Set_Duty_Period1.duty = 75;

    Set_Duty_Period1.period = 2000;

    pwmSetSignal(hetRAM1, pwm1, Set_Duty_Period1);

    Pin_t PWM_OUT = { hetPORT1, 10};
    SetPinDirection(&PWM_OUT , pinWrite);   //PIN AS OUT

     

    //unsigned int k;

    //unsigned int i;

    //while(1)

    //{

    //for(i=0;i<100;i++)

    //k=i*i;

    //}

    }

    void SetPinDirection(const Pin_t *pin, t_pinDir dir) {

    uint32 uDir = pin->port->DIR;

    if (dir == pinWrite) {

    uDir |= (1U << pin->bit);

    } else {

    uDir &= ~(1U << pin->bit);

    }

    gioSetDirection(pin->port, uDir);

    }

  • Thank you Mr.Vineeth,

    Yes i have configured the required parameters in the halcogen. I got the output what i need. I configured in halcogen and modified the duty while program is running. thank you for your support.

  • Thank you Mr.Martin Valencia,

    Just now i stepped into Embedded programming, the above programming seems to be little bit complicated for me(Only few things i can able to understand Sir). i will look into it. Thank you for your valuable support.