Mini2440 interrupt lab

The most serious mistake is how to judge whether a certain person is 1: use instead of use &&. I have been calling it for a long time. Ah ..

For more information, seeCode: Int.tar.gz

// Interrupt. c
# Include "S3C2440. H"

Void eint_handle ()
{// Interrupt handler.
Unsigned long offset = effecffset;
Unsigned long eintpnd;

If (5 = offset) {// eint8 ~ 23
// It must use eintpnd to invoke y which interrupt it is. Because GPG mode is int not input
Gpbdat | = (0x3 <6); // led2 3 off

eintpnd = eintpend;
If (eintpnd & (1 <8 )) {// key1 Press (when an external interrupt occurs, that is, the eintpnd is not 0. If & is used, this condition is always true)
gpbdat & = ~ (1 <6);
}< br> If (eintpnd & (1 <11 )) {// key2 press
gpbdat & = ~ (1 <7);
}< BR >}

// clear the interrupt.
If (5 = offset)
eintpend = (1 <8) | (1 <11);
srcpnd = 1 intpnd = 1 }< br>