2014.11.03 업무일지 출석번호21 이재우

 

 

 

 

 

 

 

#include "AT91SAM7S256.h"
#include "AT91SAM7S256.h"

#define MASTERCLOCK     48000000
#define PREA   8
#define DIVA  0

void Delay_ms(unsigned int ms)
{
 volatile unsigned int count;
 volatile unsigned int countmax = (MASTERCLOCK / 10000) * ms;
 for(count = 0; count < countmax; count++);
}

int main(void)
{
 unsigned int uiCnt  = 1000;

 *AT91C_PMC_PCER = (1<< AT91C_ID_PWMC);     // TC0 전원 공급

 *AT91C_PIOA_PPUDR = AT91C_PA14_PWM3;

 *AT91C_PIOA_BSR = AT91C_PA14_PWM3;
 
 *AT91C_PIOA_PDR = 0xFFFFFFFF; 

 *AT91C_PWMC_MR = (6 << PREA ) | (30 << DIVA);   // PREA(MCK/64) , DIVA 30 클럭A사용 B 사용 x  48M/64 750000      750000/30  25kHz
 
 *AT91C_TC0_CMR = 0x89898402;        // TC0 Channel Control Register

 *AT91C_TC0_CCR = AT91C_TC_CLKEN | AT91C_TC_SWTRG;  // TC0 clock enable and start

 while(1)
 {

 }
}