28035canboot/flash_programming/source/DSP2803x_EPwm.c

//###########################################################################
//
// FILE:   DSP2803x_EPwm.c
//
// TITLE:  DSP2803x EPwm Initialization & Support Functions.
//
//###########################################################################
// $TI Release: F2803x C/C++ Header Files and Peripheral Examples V130 $
// $Release Date: May  8, 2015 $
// $Copyright: Copyright (C) 2009-2015 Texas Instruments Incorporated -
//             http://www.ti.com/ ALL RIGHTS RESERVED $
//###########################################################################

#include "DSP2803x_Device.h"     // DSP2803x Headerfile Include File
#include "DSP2803x_Examples.h"   // DSP2803x Examples Include File

//---------------------------------------------------------------------------
// InitEPwm:
//---------------------------------------------------------------------------
// This function initializes the EPwm(s) to a known state.
//
void InitEPwm(void)
{
   // Initialize EPwm1/2/3/4/5/6/7

   //tbd...

}

//---------------------------------------------------------------------------
// Example: InitEPwmGpio:
//---------------------------------------------------------------------------
// This function initializes GPIO pins to function as EPwm pins
//
// Each GPIO pin can be configured as a GPIO pin or up to 3 different
// peripheral functional pins. By default all pins come up as GPIO
// inputs after reset.
//

void InitEPwmGpio(void)
{
   InitEPwm1Gpio();
   InitEPwm2Gpio();
   InitEPwm3Gpio();
#if DSP28_EPWM4
   InitEPwm4Gpio();
#endif // endif DSP28_EPWM4
#if DSP28_EPWM5
   InitEPwm5Gpio();
#endif // endif DSP28_EPWM5
#if DSP28_EPWM6
   InitEPwm6Gpio();
#endif // endif DSP28_EPWM6
#if DSP28_EPWM7
   InitEPwm7Gpio();
#endif // endif DSP28_EPWM7
}

void InitEPwm1Gpio(void)
{
   EALLOW;

/* Disable internal pull-up for the selected output pins
   for reduced power consumption */
// Pull-ups can be enabled or disabled by the user.
// Comment out other unwanted lines.

    GpioCtrlRegs.GPAPUD.bit.GPIO0 = 1;    // Disable pull-up on GPIO0 (EPWM1A)
    GpioCtrlRegs.GPAPUD.bit.GPIO1 = 1;    // Disable pull-up on GPIO1 (EPWM1B)

/* Configure EPWM-1 pins using GPIO regs*/
// This specifies which of the possible GPIO pins will be EPWM1 functional pins.
// Comment out other unwanted lines.

    GpioCtrlRegs.GPAMUX1.bit.GPIO0 = 1;   // Configure GPIO0 as EPWM1A
    GpioCtrlRegs.GPAMUX1.bit.GPIO1 = 1;   // Configure GPIO1 as EPWM1B

    EDIS;
}

void InitEPwm2Gpio(void)
{
   EALLOW;

/* Disable internal pull-up for the selected output pins
   for reduced power consumption */
// Pull-ups can be enabled or disabled by the user.
// This will enable the pullups for the specified pins.
// Comment out other unwanted lines.

    GpioCtrlRegs.GPAPUD.bit.GPIO2 = 1;    // Disable pull-up on GPIO2 (EPWM2A)
    GpioCtrlRegs.GPAPUD.bit.GPIO3 = 1;    // Disable pull-up on GPIO3 (EPWM2B)

/* Configure EPwm-2 pins using GPIO regs*/
// This specifies which of the possible GPIO pins will be EPWM2 functional pins.
// Comment out other unwanted lines.

    GpioCtrlRegs.GPAMUX1.bit.GPIO2 = 1;   // Configure GPIO2 as EPWM2A
    GpioCtrlRegs.GPAMUX1.bit.GPIO3 = 1;   // Configure GPIO3 as EPWM2B

    EDIS;
}

void InitEPwm3Gpio(void)
{
   EALLOW;

/* Disable internal pull-up for the selected output pins
   for reduced power consumption */
// Pull-ups can be enabled or disabled by the user.
// This will enable the pullups for the specified pins.
// Comment out other unwanted lines.

    GpioCtrlRegs.GPAPUD.bit.GPIO4 = 1;    // Disable pull-up on GPIO4 (EPWM3A)
    GpioCtrlRegs.GPAPUD.bit.GPIO5 = 1;    // Disable pull-up on GPIO5 (EPWM3B)

/* Configure EPwm-3 pins using GPIO regs*/
// This specifies which of the possible GPIO pins will be EPWM3 functional pins.
// Comment out other unwanted lines.

    GpioCtrlRegs.GPAMUX1.bit.GPIO4 = 1;   // Configure GPIO4 as EPWM3A
    GpioCtrlRegs.GPAMUX1.bit.GPIO5 = 1;   // Configure GPIO5 as EPWM3B

    EDIS;
}

#if DSP28_EPWM4
void InitEPwm4Gpio(void)
{
   EALLOW;
/* Disable internal pull-up for the selected output pins
   for reduced power consumption */
// Pull-ups can be enabled or disabled by the user.
// This will enable the pullups for the specified pins.
// Comment out other unwanted lines.

    GpioCtrlRegs.GPAPUD.bit.GPIO6 = 1;    // Disable pull-up on GPIO6 (EPWM4A)
    GpioCtrlRegs.GPAPUD.bit.GPIO7 = 1;    // Disable pull-up on GPIO7 (EPWM4B)

/* Configure EPWM-4 pins using GPIO regs*/
// This specifies which of the possible GPIO pins will be EPWM4 functional pins.
// Comment out other unwanted lines.

    GpioCtrlRegs.GPAMUX1.bit.GPIO6 = 1;   // Configure GPIO6 as EPWM4A
    GpioCtrlRegs.GPAMUX1.bit.GPIO7 = 1;   // Configure GPIO7 as EPWM4B

    EDIS;
}
#endif // endif DSP28_EPWM4

#if DSP28_EPWM5
void InitEPwm5Gpio(void)
{
   EALLOW;
/* Disable internal pull-up for the selected output pins
   for reduced power consumption */
// Pull-ups can be enabled or disabled by the user.
// This will enable the pullups for the specified pins.
// Comment out other unwanted lines.

    GpioCtrlRegs.GPAPUD.bit.GPIO8 = 1;    // Disable pull-up on GPIO8 (EPWM5A)
    GpioCtrlRegs.GPAPUD.bit.GPIO9 = 1;    // Disable pull-up on GPIO9 (EPWM5B)

/* Configure EPWM-5 pins using GPIO regs*/
// This specifies which of the possible GPIO pins will be EPWM5 functional pins.
// Comment out other unwanted lines.

    GpioCtrlRegs.GPAMUX1.bit.GPIO8 = 1;   // Configure GPIO8 as EPWM5A
    GpioCtrlRegs.GPAMUX1.bit.GPIO9 = 1;   // Configure GPIO9 as EPWM5B

    EDIS;
}
#endif // endif DSP28_EPWM5

#if DSP28_EPWM6
void InitEPwm6Gpio(void)
{
   EALLOW;
/* Disable internal pull-up for the selected output pins
   for reduced power consumption */
// Pull-ups can be enabled or disabled by the user.
// This will enable the pullups for the specified pins.
// Comment out other unwanted lines.

    GpioCtrlRegs.GPAPUD.bit.GPIO10 = 1;    // Disable pull-up on GPIO10 (EPWM6A)
    GpioCtrlRegs.GPAPUD.bit.GPIO11 = 1;    // Disable pull-up on GPIO11 (EPWM6B)

/* Configure EPWM-6 pins using GPIO regs*/
// This specifies which of the possible GPIO pins will be EPWM6 functional pins.
// Comment out other unwanted lines.

    GpioCtrlRegs.GPAMUX1.bit.GPIO10 = 1;   // Configure GPIO10 as EPWM6A
    GpioCtrlRegs.GPAMUX1.bit.GPIO11 = 1;   // Configure GPIO11 as EPWM6B

    EDIS;
}
#endif // endif DSP28_EPWM6

#if DSP28_EPWM7
void InitEPwm7Gpio(void)
{
   EALLOW;
/* Disable internal pull-up for the selected output pins
   for reduced power consumption */
// Pull-ups can be enabled or disabled by the user.
// This will enable the pullups for the specified pins.
// Comment out other unwanted lines.

    GpioCtrlRegs.GPBPUD.bit.GPIO40 = 1;    // Disable pull-up on GPIO40 (EPWM7A)
    GpioCtrlRegs.GPBPUD.bit.GPIO41 = 1;    // Disable pull-up on GPIO41 (EPWM7B)

/* Configure EPWM-7 pins using GPIO regs*/
// This specifies which of the possible GPIO pins will be EPWM7 functional pins.
// Comment out other unwanted lines.

    GpioCtrlRegs.GPBMUX1.bit.GPIO40 = 1;   // Configure GPIO40 as EPWM7A
    GpioCtrlRegs.GPBMUX1.bit.GPIO41 = 1;   // Configure GPIO41 as EPWM7B

    EDIS;
}
#endif // endif DSP28_EPWM7


//---------------------------------------------------------------------------
// Example: InitEPwmSyncGpio:
//---------------------------------------------------------------------------
// This function initializes GPIO pins to function as EPwm Synch pins
//

void InitEPwmSyncGpio(void)
{

//   EALLOW;

/* Configure EPWMSYNCI  */

/* Enable internal pull-up for the selected pins */
// Pull-ups can be enabled or disabled by the user.
// This will enable the pullups for the specified pins.
// Comment out other unwanted lines.

// GpioCtrlRegs.GPAPUD.bit.GPIO6 = 0;    // Enable pull-up on GPIO6 (EPWMSYNCI)
   GpioCtrlRegs.GPBPUD.bit.GPIO32 = 0;   // Enable pull-up on GPIO32 (EPWMSYNCI)

/* Set qualification for selected pins to asynch only */
// This will select synch to SYSCLKOUT for the selected pins.
// Comment out other unwanted lines.

// GpioCtrlRegs.GPAQSEL1.bit.GPIO6 = 0;   // Synch to SYSCLKOUT GPIO6 (EPWMSYNCI)
   GpioCtrlRegs.GPBQSEL1.bit.GPIO32 = 0;  // Synch to SYSCLKOUT GPIO32 (EPWMSYNCI)

/* Configure EPwmSync pins using GPIO regs*/
// This specifies which of the possible GPIO pins will be EPwmSync functional pins.
// Comment out other unwanted lines.

// GpioCtrlRegs.GPAMUX1.bit.GPIO6 = 2;    // Configures GPIO6 for EPWMSYNCI operation
   GpioCtrlRegs.GPBMUX1.bit.GPIO32 = 2;   // Configures GPIO32 for EPWMSYNCI operation.

/* Configure EPWMSYNC0  */

/* Disable internal pull-up for the selected output pins
   for reduced power consumption */
// Pull-ups can be enabled or disabled by the user.
// Comment out other unwanted lines.

// GpioCtrlRegs.GPAPUD.bit.GPIO6 = 1;    // Disable pull-up on GPIO6 (EPWMSYNCO)
   GpioCtrlRegs.GPBPUD.bit.GPIO33 = 1;   // Disable pull-up on GPIO33 (EPWMSYNCO)

// GpioCtrlRegs.GPAMUX1.bit.GPIO6 = 3;   // Configures GPIO6 for EPWMSYNCO
   GpioCtrlRegs.GPBMUX1.bit.GPIO33 = 2;  // Configures GPIO33 for EPWMSYNCO

}

//---------------------------------------------------------------------------
// Example: InitTzGpio:
//---------------------------------------------------------------------------
// This function initializes GPIO pins to function as Trip Zone (TZ) pins
//
// Each GPIO pin can be configured as a GPIO pin or up to 3 different
// peripheral functional pins. By default all pins come up as GPIO
// inputs after reset.
//

void InitTzGpio(void)
{
   EALLOW;

/* Enable internal pull-up for the selected pins */
// Pull-ups can be enabled or disabled by the user.
// This will enable the pullups for the specified pins.
// Comment out other unwanted lines.
   GpioCtrlRegs.GPAPUD.bit.GPIO12 = 0;    // Enable pull-up on GPIO12 (TZ1)
// GpioCtrlRegs.GPAPUD.bit.GPIO15 = 0;    // Enable pull-up on GPIO15 (TZ1)
   GpioCtrlRegs.GPAPUD.bit.GPIO13 = 0;    // Enable pull-up on GPIO13 (TZ2)
// GpioCtrlRegs.GPAPUD.bit.GPIO16 = 0;    // Enable pull-up on GPIO16 (TZ2)
// GpioCtrlRegs.GPAPUD.bit.GPIO28 = 0;    // Enable pull-up on GPIO28 (TZ2)
   GpioCtrlRegs.GPAPUD.bit.GPIO14 = 0;    // Enable pull-up on GPIO14 (TZ3)
// GpioCtrlRegs.GPAPUD.bit.GPIO17 = 0;    // Enable pull-up on GPIO17 (TZ3)
// GpioCtrlRegs.GPAPUD.bit.GPIO29 = 0;    // Enable pull-up on GPIO29 (TZ3)

/* Set qualification for selected pins to asynch only */
// Inputs are synchronized to SYSCLKOUT by default.
// This will select asynch (no qualification) for the selected pins.
// Comment out other unwanted lines.

   GpioCtrlRegs.GPAQSEL1.bit.GPIO12 = 3;  // Asynch input GPIO12 (TZ1)
// GpioCtrlRegs.GPAQSEL1.bit.GPIO15 = 3;  // Asynch input GPIO15 (TZ1)
   GpioCtrlRegs.GPAQSEL1.bit.GPIO13 = 3;  // Asynch input GPIO13 (TZ2)
// GpioCtrlRegs.GPAQSEL2.bit.GPIO16 = 3;  // Asynch input GPIO16 (TZ2)
// GpioCtrlRegs.GPAQSEL2.bit.GPIO28 = 3;  // Asynch input GPIO28 (TZ2)
   GpioCtrlRegs.GPAQSEL1.bit.GPIO14 = 3;  // Asynch input GPIO14 (TZ3)
// GpioCtrlRegs.GPAQSEL2.bit.GPIO17 = 3;  // Asynch input GPIO17 (TZ3)
// GpioCtrlRegs.GPAQSEL2.bit.GPIO29 = 3;  // Asynch input GPIO29 (TZ3)


/* Configure TZ pins using GPIO regs*/
// This specifies which of the possible GPIO pins will be TZ functional pins.
// Comment out other unwanted lines.
   GpioCtrlRegs.GPAMUX1.bit.GPIO12 = 1;  // Configure GPIO12 as TZ1
//   GpioCtrlRegs.GPAMUX1.bit.GPIO15 = 1;  // Configure GPIO15 as TZ1
   GpioCtrlRegs.GPAMUX1.bit.GPIO13 = 1;  // Configure GPIO13 as TZ2
// GpioCtrlRegs.GPAMUX2.bit.GPIO16 = 3;  // Configure GPIO16 as TZ2
// GpioCtrlRegs.GPAMUX2.bit.GPIO28 = 3;  // Configure GPIO28 as TZ2
   GpioCtrlRegs.GPAMUX1.bit.GPIO14 = 1;  // Configure GPIO14 as TZ3
// GpioCtrlRegs.GPAMUX2.bit.GPIO17 = 3;  // Configure GPIO17 as TZ3
// GpioCtrlRegs.GPAMUX2.bit.GPIO29 = 3;  // Configure GPIO29 as TZ3

   EDIS;

}

//===========================================================================
// End of file.
//===========================================================================