sampwc.c

ATMEL用IO模拟直接驱动内部无控制器的夏普320240

#include "AT91SAM7S64.h"

#include "SAMpwc.h"

void PWMCinit(void)
{
  // clock
 AT91C_BASE_PMC->PMC_PCER|=(1<<10); // PWC0
  // pin
 AT91C_BASE_PIOA->PIO_PDR|=(1<<7);
 AT91C_BASE_PIOA->PIO_BSR|=(1<<7);  // PWM3(PA7)

 AT91C_BASE_PWMC->PWM_MR=(0x0A<<8)|(1); // 46800 Hz
 AT91C_BASE_PWMC->PWM_ENA=0x08;
 AT91C_BASE_PWMC->PWM_IDR=0x0F;
 
 AT91C_BASE_PWMC_CH3->PWC_CMR=0x0A;
 AT91C_BASE_PWMC_CH3->PWC_CDTY=50;
 AT91C_BASE_PWMC_CH3->PWC_CPRD=100; 
}

void PWMCISR(void)
{
 

}