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ICCAVR看門(mén)狗

作者: 時(shí)間:2016-11-13 來(lái)源:網(wǎng)絡(luò ) 收藏
tools -Application Builder.

Watchdog Timer選中enable后。右邊選時(shí)鐘。自動(dòng)生成Watchdog Timer所需的數據

本文引用地址:http://dyxdggzs.com/article/201611/316378.htm

//ICC-AVR application builder : 2009-11-1 12:59:57
// Target : M16
// Crystal: 4.0000Mhz

#include
#include

void port_init(void)
{
PORTA = 0x00;
DDRA = 0x00;
PORTB = 0x00;
DDRB = 0x00;
PORTC = 0x00; //m103 output only
DDRC = 0x00;
PORTD = 0x00;
DDRD = 0x00;
}

//Watchdog initialize
// prescale: 2048K
void watchdog_init(void)
{
WDR(); //this prevents a timout on enabling
WDTCR = 0x0F; //WATCHDOG ENABLED - dont forget to issue WDRs
}

//call this routine to initialize all peripherals
void init_devices(void)
{
//stop errant interrupts until set up
CLI(); //disable all interrupts
port_init();
watchdog_init();

MCUCR = 0x00;
GICR = 0x00;
TIMSK = 0x00; //timer interrupt sources
SEI(); //re-enable interrupts
//all peripherals are now initialized
}



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