Today when i am reading the user manual of LPC23xx for LPC2378. i have found that we can generate interrupt on GPIO 0 and 2 ports. But i have not found any VICVectAddr crossponding to port interrupt. then how can i generate interrupt by GPIO. here i am not talking about external interrupt like EINT0,EINT1,EINT2,EINT3.

kindly tell me.
Thanks

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s...@yahoo.co.in wrote:
> Today when i am reading the user manual of LPC23xx for LPC2378. i have
> found that we can generate interrupt on GPIO 0 and 2 ports. But i have
> not found any VICVectAddr crossponding to port interrupt. then how can i
> generate interrupt by GPIO. here i am not talking about external
> interrupt like EINT0,EINT1,EINT2,EINT3.

User manual page 171, "2.2 Interrupt generating digital ports" last
bullet or page 93 "6. Interrupt sources"...

--

Timo

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First of all Thanks.
Second thing is, i have not found any ISR of GPIO0 and GPIO2 interrupt , which will get executed on getting any edge type interrupt on GPIO. r they just for making the controller out of Power Down Mode only?

Thanks.
--- On Sat, 4/7/09, Timo wrote:

From: Timo
Subject: Re: [lpc2000] about GPIO interrupt.
To: l...
Date: Saturday, 4 July, 2009, 6:21 AM

sukhdeepmanku@ yahoo.co. in wrote:

> Today when i am reading the user manual of LPC23xx for LPC2378. i have

> found that we can generate interrupt on GPIO 0 and 2 ports. But i have

> not found any VICVectAddr crossponding to port interrupt. then how can i

> generate interrupt by GPIO. here i am not talking about external

> interrupt like EINT0,EINT1, EINT2,EINT3.

User manual page 171, "2.2 Interrupt generating digital ports" last

bullet or page 93 "6. Interrupt sources"...

--

Timo

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sukhdeep singh wrote:
> Second thing is, i have not found any ISR of GPIO0 and GPIO2 interrupt ,
> which will get executed on getting any edge type interrupt on GPIO. r
> they just for making the controller out of Power Down Mode only?

I am not sure if I understand your question correctly. Doesn't the user
manual give an answer for your question by saying: "Note: EINT3 channel
is shared with GPIO interrupts" (page 93) or "GPIO0 and GPIO2 interrupts
share the same VIC slot with the External Interrupt 3 event" (page 171)?

--

Timo

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Some of the oldest LPC21xx had external interrupt triggered on level, not edge. /01 and later seemed to add two registers to control the desired interrupt conditions such as rising/falling edge.

It amazes me how many people post questions here having never done their research on the data sheets. It's OK to ask, having done so and not found the answer. Same thing for the person here who asked if there were military extended temperature range NXP products.

But gosh, there are a lot of lazy or stupid people out there.

--- In l..., Timo wrote:
>
> sukhdeep singh wrote:
> > Second thing is, i have not found any ISR of GPIO0 and GPIO2 interrupt ,
> > which will get executed on getting any edge type interrupt on GPIO. r
> > they just for making the controller out of Power Down Mode only?
>
> I am not sure if I understand your question correctly. Doesn't the user
> manual give an answer for your question by saying: "Note: EINT3 channel
> is shared with GPIO interrupts" (page 93) or "GPIO0 and GPIO2 interrupts
> share the same VIC slot with the External Interrupt 3 event" (page 171)?
>
> --
>
> Timo
>

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