ap89021.c

来自「加速度采集器。基于ATMega16L.AVRSTUIDIO4」· C语言 代码 · 共 32 行

#include "ap89021.h"


void apPlay(unsigned char num)
{
	//music count == 0...7
	if(num&0x01)
		PORT_APCTL |= AP_S1;
	else
		PORT_APCTL &= ~AP_S1;
	if(num&0x02)
		PORT_APCTL |= AP_S2;
	else
		PORT_APCTL &= ~AP_S2;
	if(num&0x04)
		PORT_APCTL |= AP_S3;
	else
		PORT_APCTL &= ~AP_S3;

	NOP();


	PORT_APCTL |= AP_SBT;
	_delay_ms(20);
	PORT_APCTL &= ~AP_SBT;
}

unsigned char apIsBusy()
{
	return PIN_APBUSY&0x80;
}