LPC2468 clear ethernet interrupt flag (rxdone) problem

lpcware — Wed, 15 Jun 2016 19:51:01 GMT

Content originally posted in LPCWare by thieulam on Sun Jun 14 01:20:13 MST 2015
Hello!
I'm working with ethernet mac module inside the LPC2468.(i use iar for arm v6.5).
I need a interrupt service routine for the RxDone event.
It works, but i have a problem clearing the interrupt flag.
All works if i clear the flag with:

void EthRxIntrHandler (void)
{
INTCLEAR=0x0f; //THIS CLEAR 4 FLAGS!!
VICADDRESS = 0;
}

But NOT with:
void EthRxIntrHandler (void)
{
INTCLEAR_bit.RXDONEINTCLR=1;
VICADDRESS = 0;
}

Can you help me?
Regards , Luca

Re: LPC2468 clear ethernet interrupt flag (rxdone) problem

aleksandrashche — Thu, 18 Aug 2016 09:00:59 GMT

INTCLEAR is Write Only.

When you use INTCLEAR_bit.RXDONEINTCLR=1;, data read from register, ored and write.

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LPC2468 clear ethernet interrupt flag (rxdone) problem

Re: LPC2468 clear ethernet interrupt flag (rxdone) problem