eepromad.c

本人用AVR mega32写的一个关于输出32路PWM的程序

#define   EXT_EEPROMAD_GLOBALS
#include "includes.h" 


void EEPROM_write(unsigned int uiAddress, unsigned char ucData)
{
/* 等待上一次写操作结束 */
while(EECR & (1<<EEWE));
/* 设置地址和数据寄存器 */
EEAR = uiAddress;
EEDR = ucData;
/* 置位EEMWE */
EECR  = 0x04;              //(1<<EEMWE);
/* 置位EEWE 以启动写操作*/
EECR  = 0x06;
}



unsigned char EEPROM_read(unsigned int uiAddress)
{
/* 等待上一次写操作结束 */
while(EECR & (1<<EEWE));
/* 设置地址寄存器*/
EEAR = uiAddress;
/* 设置EERE 以启动读操作*/
EECR |= (1<<EERE);
/* 自数据寄存器返回数据 */
return EEDR;
}


/************************************************************
 Function Name:  SIGNAL(TIMER0_COMPA_vect)
 Function:       Timer0 interrupt
 Paramenter:     TIMER0_COMPA_vect               
 Return value:   None                     
 Author:         Chen yuan zhen May.30.2008 
*************************************************************/
/*ADC采样函数，采样第6通道信号，采样分辨率256*/
unsigned char get_ad(unsigned char SensorTest) 
{
	unsigned char i;
	
	ADMUX = 0x60|SensorTest;			           /*AREF、左对齐、通道6*/
	ADCSRA = 0xC3;		                      	   /*使能、开启、2分频*/
	while(!(ADCSRA & (1 << ADIF)));	               /*等待*/
	i = ADCH;
	ADCSRA &= ~(1 << ADIF);		                   /*清标志*/
	ADCSRA &= ~(1 << ADEN);		                   /*关闭转换*/

	return i;
}



/************************************************************
 Function Name:  SIGNAL(TIMER0_COMPA_vect)
 Function:       Timer0 interrupt
 Paramenter:     TIMER0_COMPA_vect               
 Return value:   None                     
 Author:         Chen yuan zhen May.30.2008 
*************************************************************/
/*ADC采样函数，采样第6通道信号，采样分辨率256*/
void AdControl(void)
{
  	unsigned char i; 
	DDRF=0x00;
	i=2;
//	for(i=0;i<8;i++)
//	{
        PulseDispose[0].PwmPulse=get_ad(i); //AdTest[i]=get_ad(i);   // PulseDispose[16+i].PwmPulse=get_ad(i);
//	}
	DDRF=0xFF; 
	DisposePwm( );                //   
    TransferStruct( );

}