inv_main.c

SVPWM算法的DSP源码已通过硬件验证

// TI File $Revision: /main/6 $
// Checkin $Date: April 6, 2005   15:15:10 $
//###########################################################################
//
// FILE:    Example_280xEPwmUpDownAQ.c
//
// TITLE:   Action Qualifier Module - Using up/down count
//
// ASSUMPTIONS:
//
//    This program requires the DSP280x header files.  
//
//    Monitor ePWM1-ePWM3 pins on an oscilloscope as described
//    below.
//
//       EPWM1A is on GPIO0
//       EPWM1B is on GPIO1
//
//       EPWM2A is on GPIO2
//       EPWM2B is on GPIO3
//
//       EPWM3A is on GPIO4
//       EPWM3B is on GPIO5
//
//    As supplied, this project is configured for "boot to SARAM" 
//    operation.  The 280x Boot Mode table is shown below.  
//    For information on configuring the boot mode of an eZdsp, 
//    please refer to the documentation included with the eZdsp,  
//
//       Boot      GPIO18     GPIO29    GPIO34
//       Mode      SPICLKA    SCITXDA
//                  SCITXB
//       -------------------------------------
//       Flash       1          1        1
//       SCI-A       1          1        0
//       SPI-A       1          0        1
//       I2C-A       1          0        0
//       ECAN-A      0          1        1        
//       SARAM       0          1        0  <- "boot to SARAM"
//       OTP         0          0        1
//       I/0         0          0        0 
//
//
// DESCRIPTION:
//
//    This example configures ePWM1, ePWM2, ePWM3 to produce an
//    waveform with independant modulation on EPWMxA and
//    EPWMxB.
//
//    The compare values CMPA and CMPB are modified within the ePWM's ISR
//
//    The TB counter is in up/down count mode for this example. 
//
//    View the EPWM1A/B, EPWM2A/B and EPWM3A/B waveforms 
//    via an oscilloscope
//
//
//###########################################################################
// $TI Release: DSP280x, DSP2801x Header Files V1.41 $
// $Release Date: August 7th, 2006 $
//###########################################################################


#include "DSP280x_Device.h"     // DSP280x Headerfile Include File
#include "DSP280x_Examples.h"   // DSP280x Examples Include File



// Prototype statements for functions found within this file.
void InitEPwm1Example(void);
void InitEPwm2Example(void);
void InitEPwm3Example(void);

interrupt void epwm1_isr(void);
interrupt void ecap4_isr(void);
#define	Gpio25_clr		GpioDataRegs.GPACLEAR.bit.GPIO25 = 1

// Global variables used in this example



// To keep track of which way the compare value is moving

void main(void)
{
// Step 1. Initialize System Control:
// PLL, WatchDog, enable Peripheral Clocks
// This example function is found in the DSP280x_SysCtrl.c file.
   InitSysCtrl();

// Step 2. Initalize GPIO: 
// This example function is found in the DSP280x_Gpio.c file and
// illustrates how to set the GPIO to it's default state.
// InitGpio();  // Skipped for this example  

// For this case just init GPIO pins for ePWM1, ePWM2, ePWM3
// These functions are in the DSP280x_EPwm.c file
   InitEPwm1Gpio();
   InitEPwm2Gpio();
   InitEPwm3Gpio();
   InitECap4Gpio();    
   InitSpibGpio();  
// Step 3. Clear all interrupts and initialize PIE vector table:
// Disable CPU interrupts 
   DINT;

// Initialize the PIE control registers to their default state.
// The default state is all PIE interrupts disabled and flags
// are cleared.  
// This function is found in the DSP280x_PieCtrl.c file.
   InitPieCtrl();
   
// Disable CPU interrupts and clear all CPU interrupt flags:
   IER = 0x0000;
   IFR = 0x0000;

// Initialize the PIE vector table with pointers to the shell Interrupt 
// Service Routines (ISR).  
// This will populate the entire table, even if the interrupt
// is not used in this example.  This is useful for debug purposes.
// The shell ISR routines are found in DSP280x_DefaultIsr.c.
// This function is found in DSP280x_PieVect.c.
   InitPieVectTable();

// Interrupts that are used in this example are re-mapped to
// ISR functions found within this file.  
   EALLOW;  // This is needed to write to EALLOW protected registers
   PieVectTable.EPWM1_INT = &epwm1_isr;
   PieVectTable.ECAP4_INT = &ecap4_isr;
   
   EDIS;    // This is needed to disable write to EALLOW protected registers

// Step 4. Initialize all the Device Peripherals:
// This function is found in DSP280x_InitPeripherals.c
// InitPeripherals();  // Not required for this example

// For this example, only initialize the ePWM

   EALLOW;
   SysCtrlRegs.PCLKCR0.bit.TBCLKSYNC = 0;
   EDIS;
   InitCpuTimers();								// 初始化T0
   ConfigCpuTimer(&CpuTimer0, 100, 2000);
   InitEPwm1Example();    
   InitEPwm2Example();
   InitEPwm3Example();
   InitECapture();
   spi_init();
   InitAdc();	
   user_setup_adc();
   
   EALLOW;
   SysCtrlRegs.PCLKCR0.bit.TBCLKSYNC = 1;
   EDIS;
   
// Step 5. User specific code, enable interrupts:

// Enable CPU INT3 which is connected to EPWM1-3 INT:
   IER |= M_INT3;
   IER |= M_INT4;

// Enable EPWM INTn in the PIE: Group 3 interrupt 1-3
   PieCtrlRegs.PIEIER3.bit.INTx1 = 1; //EPWM1中断
   PieCtrlRegs.PIEIER4.bit.INTx4 = 1; //ECAP4中断
 

// Enable global Interrupts and higher priority real-time debug events:
   EINT;   // Enable Global interrupt INTM
   ERTM;   // Enable Global realtime interrupt DBGM
   StartCpuTimer0();
   InitialSysData();
   vInitUserData();
   Gpio25_setup(1,1,0,0);
   Gpio8_setup(1,1,0,0);
   Gpio25_clr;
// Step 6. IDLE loop. Just sit and loop forever (optional):
   for(;;)
   {    
       vKeyProcess();
        vOprCntl();
	    vTimer0Pro();
	    vFaultProcess();	
   }

}