Hi All,
cyg_hal_interrupt_acknowledge( vector ) is composed of lines like
case CYGNUM_HAL_INTERRUPT_IRQ1 ... CYGNUM_HAL_INTERRUPT_IRQ7:
*reg_sipnr_h |= ( (0x00004000) >> (vector - CYGNUM_HAL_INTERRUPT_IRQ1)
);
break;
The question is why to use the |= operator? When an interrupt is pending, the
corresponding bit
at SIPNR is turned on. Using the |= operator results with writing 1s to all
bits which are turned on,
and therefore acknowledging all pending interrupts...
Am I missing something here?
Thanks
Danny
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