Lpc2000

I make the same things, whith Phytec board LPC2294, Isystem Ione and 
Iar compiler, work fine for EINT1-3 and always 0 for EINT0!

Regards,
JBH

--- In lpc2000@yahoogroups.com, Sébastien MARION (UMM) 
<s.marion@u...> wrote:
> hi,
> 
>   I make the same things with pathfinder and EXTMODE are correct 
BUT without effect on the behaviour of EINT0 always on low level 
detection mode .... 
> 
>   I note that EXTMODE and EXTPOLAR never chane the behaviour of 
EINT0 !!! (same code with EINT2 work very fine)
> 
> Regards,
> Sébastien
> 
> 
>   ----- Original Message ----- 
>   From: philips_apps 
>   To: lpc2000@yahoogroups.com 
>   Sent: Thursday, March 31, 2005 11:58 PM
>   Subject: [lpc2000] Re: external interrupt edge sensitive don't 
work
> 
> 
> 
>   Bruce,
> 
>   I tried debugging the below code using the Keil MicroVision3 
>   debugger. 
> 
>         /* Configuring EXTMODE and EXTPOLAR    */
>         VPBDIV=0x0;
>         EXTMODE=0x1;
>         VPBDIV=0x1;
> 
>         VPBDIV=0x0;
>         EXTPOLAR=0x1;
>         VPBDIV=0x1;
> 
>         VPBDIV=0x0;                        
> 
>   It works fine on my end. Please dont single-step through these 
>   instructions. You need to place a breakpoint at the instruction 
>   following
> 
>           VPBDIV=0x0;
> 
>   When this breakpoint is hit, on the Memory Window of the 
debugger, 
>   EXTMODE and EXTPOLAR  should reflect 0x1 
> 
>   Best Regards,
>   Philips_apps
> 
>   --- In lpc2000@yahoogroups.com, Bruce Paterson <bruce@t...> wrote:
>   > jbhoudry wrote:
>   > > 
>   > > I have the same problem, impossible to put 1 in EXTPOLAR and 
>   EXTMODE 
>   > > for EINT0 (no problem for 1 to 3). I program all the 
>   recomendations 
>   > > from philips :
>   > > Before writing to the EXTMODE and EXTPOLAR registers,
>   > > 1> Write 0x0 to VPBDIV 
>   > > 2> Then write the desired value to EXTMODE or EXTPOLAR 
register. 
>   > > 3> Then write the same value to VPBDIV ( additional step)
>   > > 4> Restore the VPBDIV to the previously saved value or simply 
>   write 
>   > >    to the register again with the desired value.
>   > > 
>   > > I test on 2 LPC2294 the same, so now i use IT capture 0 timer 
1 
>   > 
>   > Could Philips urgently confirm or not this EINT0 edge problem 
>   exists on 
>   > a LPC2124 ?
>   > 
>   > Just about to change a layout to use EINT0 in edge sensitive 
mode 
>   > (wasn't using it at all before) to WAKEup out of sleep mode, so 
I'm 
>   not 
>   > in a position to test this till it's all too late !!
>   > 
>   > -- 
>   > Cheers,
>   > Bruce
>   > ----------------------------------------------------------------
---
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>   >     /  \\\ \\\ \\\  /   /    Senior Design Engineer
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> 
> 
> 
> 
> 
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