[TMS320F28335] Calculation Time Consumption of Multiplication Division and Square-root functions

HI,

I want to calculate the duration of computation time of my program to know (what_time() )

Is there any clock () function?

Thank you

Hi,

I want to calculate the time duration..

I used Timer0 and the delay routine..  I configure the timer 0 to interrup after 1ms to compare : 

//###########################################################################
#include "DSP2833x_Device.h"
#include <stdio.h>

// Prototype statements for functions found within this file.
void Gpio_select(void);
void InitSystem(void);
void delay_loop(long);

//External functions
extern void InitSysCtrl(void);
extern void InitPieCtrl(void);
extern void InitPieVectTable(void);
extern void InitCpuTimers(void);
extern void ConfigCpuTimer(struct CPUTIMER_VARS *, float, float);
//Interrupt ISR
interrupt void cpu_timer0_isr (void);

//###########################################################################

// main code
//###########################################################################
void main(void)
{
int counter=0; // binary counter for digital output
int time;
InitSysCtrl(); // Basic Core Init from DSP2833x_SysCtrl.c

EALLOW;
SysCtrlRegs.WDCR= 0x00AF; // Re-enable the watchdog
EDIS; // 0x00AF to NOT disable the Watchdog, Prescaler = 64

DINT; // Disable all interrupts

Gpio_select(); // GPIO9,GPIO11,GPIO34 and GPIO49 as output (LEDs @ peripheral explorer)

InitPieCtrl();

InitPieVectTable();

EALLOW;
PieVectTable.TINT0 = &cpu_timer0_isr;
EDIS;

InitCpuTimers();

ConfigCpuTimer(&CpuTimer0, 150, 1000);

PieCtrlRegs.PIEIER1.bit.INTx7 = 1;

IER |= 1;

EINT;
ERTM;

//while(1)
{
counter++;
if(counter&1) GpioDataRegs.GPASET.bit.GPIO9 = 1;
else GpioDataRegs.GPACLEAR.bit.GPIO9 = 1;
if(counter&2) GpioDataRegs.GPASET.bit.GPIO11 = 1;
else GpioDataRegs.GPACLEAR.bit.GPIO11 = 1;
if(counter&4) GpioDataRegs.GPBSET.bit.GPIO34 = 1;
else GpioDataRegs.GPBCLEAR.bit.GPIO34 = 1;
if(counter&8) GpioDataRegs.GPBSET.bit.GPIO49 = 1;
else GpioDataRegs.GPBCLEAR.bit.GPIO49 = 1;

CpuTimer0Regs.TCR.bit.TSS = 0; // start timer0

delay_loop(1000000);

EALLOW;
SysCtrlRegs.WDKEY = 0x55; // service WD #1
EDIS;

time = CpuTimer0.InterruptCount *  1000 ;   // 1000 µs
CpuTimer0.InterruptCount = 0;

printf("%d = ", time);

}
}

void Gpio_select(void)
{
EALLOW;
GpioCtrlRegs.GPAMUX1.all = 0; // GPIO15 ... GPIO0 = General Puropse I/O
GpioCtrlRegs.GPAMUX2.all = 0; // GPIO31 ... GPIO16 = General Purpose I/O
GpioCtrlRegs.GPBMUX1.all = 0; // GPIO47 ... GPIO32 = General Purpose I/O
GpioCtrlRegs.GPBMUX2.all = 0; // GPIO63 ... GPIO48 = General Purpose I/O
GpioCtrlRegs.GPCMUX1.all = 0; // GPIO79 ... GPIO64 = General Purpose I/O
GpioCtrlRegs.GPCMUX2.all = 0; // GPIO87 ... GPIO80 = General Purpose I/O

GpioCtrlRegs.GPADIR.all = 0;
GpioCtrlRegs.GPADIR.bit.GPIO9 = 1; // peripheral explorer: LED LD1 at GPIO9
GpioCtrlRegs.GPADIR.bit.GPIO11 = 1; // peripheral explorer: LED LD2 at GPIO11

GpioCtrlRegs.GPBDIR.all = 0; // GPIO63-32 as inputs
GpioCtrlRegs.GPBDIR.bit.GPIO34 = 1; // peripheral explorer: LED LD3 at GPIO34
GpioCtrlRegs.GPBDIR.bit.GPIO49 = 1; // peripheral explorer: LED LD4 at GPIO49
GpioCtrlRegs.GPCDIR.all = 0; // GPIO87-64 as inputs
EDIS;
}

interrupt void cpu_timer0_isr(void)
{
CpuTimer0.InterruptCount++;

EALLOW;
SysCtrlRegs.WDKEY = 0xAA; // service WD #2
EDIS;
PieCtrlRegs.PIEACK.all = PIEACK_GROUP1;
}
void delay_loop(long end)
{
long i;
for (i = 0; i < end; i++)
{
asm(" NOP");
EALLOW;
SysCtrlRegs.WDKEY = 0x55;
SysCtrlRegs.WDKEY = 0xAA;
EDIS;
}
}
//===========================================================================
// End of SourceCode.
//===========================================================================

The result of the time = 173 !!

Any solution ?!

Thank you