sampwmc.c

来自「ATMEL用IO模拟直接驱动内部无控制器的夏普320240」· C语言 代码 · 共 28 行

#include "AT91SAM7S64.h"

#include "SAMpwmc.h"

void PWMCinit(void)
{
  // clock
 AT91C_BASE_PMC->PMC_PCER=(1<<AT91C_ID_PWMC); // PWC0
  // pin
 AT91C_BASE_PIOA->PIO_PDR=(1<<7);
 AT91C_BASE_PIOA->PIO_BSR=(1<<7);  // PWM3(PA7)

 AT91C_BASE_PWMC->PWMC_MR=(0x0A<<8)|(1); // 46800 Hz
 AT91C_BASE_PWMC->PWMC_ENA=0x08;
 AT91C_BASE_PWMC->PWMC_IDR=0x0F;
 
 AT91C_BASE_PWMC_CH3->PWMC_CMR=0x0A;
 AT91C_BASE_PWMC_CH3->PWMC_CDTYR=50;
 AT91C_BASE_PWMC_CH3->PWMC_CPRDR=100; 
}

void PWMCISR(void)
{
 

}