Aaeon PFM-535S Manuel d'utilisateur télécharger pdf (Page 44)

PC/104 CPU Module PFM-535S

Appendix A Programming the Watchdog Timer A-11

mov edx, DWORD PTR addr

in al, dx

and eax, 0xff

pop edx

}

void outportb(int addr, unsigned char val)

{

__asm

{

push edx

mov edx, DWORD PTR addr

mov al, BYTE PTR val

out dx, al

pop edx

}

void main(void)

{

unsigned char c;

unsigned long lTime;

// 500 mini-second

lTime = 0x20L * 500L;

outp(0x6c, (lTime >> 16) & 0xff);

outp(0x6b, (lTime >> 8) & 0xff);

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Aaeon PFM-535S Manuel d'utilisateur Page 44