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Problem, Led Swing on EB40A

Hello!
I've a little problem with my program...
I'm working on the board EB40A (AT91R40008).
This is a code of my simple program:/

#include <stdio.h>
#include <91R40008.H>/* AT91R40008 Definitions */
#include <tc.h>
#include <pio.h>

#ifdef ERAM        /* Store in Flash, Run in RAM */
#define _atr __ram
#else
#define _atr
#endif
void fala(void)
{
     unsigned int i;
     //1
	 for(i=0x00000010;i<<0x00008000;i>>=1)
	 {
	   PIO_SODR = i;
	 while((TC2_SR&0x00000001) == 0x00000000){};
	   PIO_CODR = i;
	 }
	 //4
	 for(i=0x00000040;i>0x00000004;i>>=1)
	 {
	   PIO_SODR = i;
	 while((TC2_SR&0x00000001) == 0x00000000){};
	   PIO_CODR = i;
	 }
}

int main (void) {                          /* Main Program */



  TC2_CMR = TC_CLKS_MCK32;
  TC2_CCR = TC_CLKEN;
  PIO_PER  = 0x000F0078;
  PIO_OER  = 0x000F0078;
  while((PIO_PDSR&0x00000002) == 0x00000000){};
  while((PIO_PDSR&0x00000002) == 0x00000002){};
  TC2_CCR = TC_SWTRG;
     PIO_SODR = 0x00000008;
	 while((TC2_SR&0x00000001) == 0x00000000){};
	 PIO_CODR = 0x00000008;
	while(1)
	{
	 TC2_CMR = TC_CLKS_MCK32;
	 while((PIO_PDSR&0x00000004) == 0x00000000){fala();}
	 while((PIO_PDSR&0x00000004) == 0x00000004){fala();}
	 TC2_CMR = TC_CLKS_MCK8;
	 while((PIO_PDSR&0x00000004) == 0x00000000){fala();}
	 while((PIO_PDSR&0x00000004) == 0x00000004){fala();}
	 TC2_CMR = TC_CLKS_MCK2;
	 while((PIO_PDSR&0x00000004) == 0x00000000){fala();}
	 while((PIO_PDSR&0x00000004) == 0x00000004){fala();}

	 }
	 }

This program is simple Led Swing. This swing starts when i push and release a button(PIO_PDSR&0x00000002)and then (with timer2 support) my leds swing with definite by MCK speed.

This speed must change in this way: first push and release button(PIO_PDSR&0x00000004) sets the clock on MCK32, second push and release button sets clock on MCK8, third - MCK2...It works but only if leds "meet" pushed button at their start point and then "meet" released button at the start point of their swing and then the speed changes...

Could You help me to run this program right? after any of leds off program must check the push and release button...I dont know how to do that...:(

Parents

0 Marcin Lewandowski over 20 years ago in reply to Keil Software Support Intl.

I know that i can see everything what's going in programme in simulator...
I have that kind of problem to solve:
i must check the state of button everytime when the "i" led in "for" loop is cleared and i dont know how to do that...
please help me...
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0 Marcin Lewandowski over 20 years ago in reply to Keil Software Support Intl.

I know that i can see everything what's going in programme in simulator...
I have that kind of problem to solve:
i must check the state of button everytime when the "i" led in "for" loop is cleared and i dont know how to do that...
please help me...
Cancel
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Children

0 Marcin Lewandowski over 20 years ago in reply to Marcin Lewandowski

OK, i've done it. but there's still a little problem...i wonder if You find out what kind of problem is?

#include <stdio.h>
#include <91R40008.H>/* AT91R40008 Definitions */
#include <tc.h>
#include <pio.h>

#ifdef ERAM        /* Store in Flash, Run in RAM */
#define _atr __ram
#else
#define _atr
#endif



void change_speed(void)
{
 if((PIO_PDSR&0x00000004) == 0x00000004)
 {
    if(TC2_CMR==TC_CLKS_MCK32) TC2_CMR=TC_CLKS_MCK8;
	else  TC2_CMR=TC_CLKS_MCK2;
 }
 if((PIO_PDSR&0x00000002) == 0x00000002)
 {
   if(TC2_CMR==TC_CLKS_MCK2) TC2_CMR=TC_CLKS_MCK8;
   	else TC2_CMR=TC_CLKS_MCK32;

 }


}
void wait(void)
{
 change_speed();
 while((TC2_SR&0x00000001) == 0x00000000){};
}



int main (void) {                          /* Main Program */


  unsigned int i;
  TC2_CMR = TC_CLKS_MCK32;
  TC2_CCR = TC_CLKEN;
  PIO_PER  = 0x000F0078;
  PIO_OER  = 0x000F0078;
  while((PIO_PDSR&0x00000200) == 0x00000000){};
  while((PIO_PDSR&0x00000200) == 0x00000200){};
  TC2_CCR = TC_SWTRG;
     PIO_SODR = 0x00000008;
	 wait();
	 PIO_CODR = 0x00000008;
	 wait();
	while(1)
	{

     //1
	 for(i=0x00000010;i<0x00000080;i<<=1)
	 {
	   PIO_SODR = i;
	 wait();
	   PIO_CODR = i;
	 wait();

	 }
	 //2
	 for(i=0x00010000;i<0x00100000;i<<=1)
	 {
	   PIO_SODR = i;
	 wait();
	   PIO_CODR = i;
	 wait();
	 }
	 //3
	 for(i=0x00040000;i>0x00008000;i>>=1)
	 {
	   PIO_SODR = i;
	 wait();
	   PIO_CODR = i;
	 wait();
	 }
	 //4
	 for(i=0x00000040;i>0x00000004;i>>=1)
	 {
	   PIO_SODR = i;
	 wait();
	   PIO_CODR = i;
     wait();
	 }

	 }
	 //--------------------------------------------------------//



}