Lpc2000

Hello,

For a LPC 2294 i had a problem with EINT2. When i was configurating EXTMODE 
(EXTINT in your example) register my program was hanging.

I found solution in errata sheet. There is a problem with EINT2 and VPBDIV.

to program EXTMODE you must follow this procedure :
        sauve_VPBDIV = VPBDIV;
        VPBDIV  = 0;
        EXTMODE = 4;
        VPBDIV  = 4;
        VPBDIV  = sauve_VPBDIV;

Perhaps you have the same problem on LPC2124 see erra sheet of philipps.


----- Original Message ----- 
From: "fbpmania" <pmania@...>
To: <lpc2000@yahoogroups.com>
Sent: Wednesday, September 07, 2005 11:16 AM
Subject: [lpc2000] EINT2 Problems on LPC2124


Hello everyone,

i´ve got a problem with the configuration of the external interrupt
EINT2(P0.15). The controller hangs up after
"VICIntEnable = (1<<VIC_EINT2);           // Enable EINT2".

This is my code(gcc):

void EINT2_ISR(void){
  toggle_led();
  SCB_EXTINT = (1<<2);
  VICVectAddr = 0;
}

void init_interrupts(void){
  VICVectAddr0 = (unsigned long)EINT2_ISR;    // Save ISR Adress
  VICVectCntl0 = (1<<5) | (1<<VIC_EINT2);     // Enable VIC Control
Register
  VICIntEnable = (1<<VIC_EINT2);           // Enable EINT2
  toggle_led();
}

Here is the pinselect:
PCB_PINSEL0 = (1<<0)|(1<<2)|(1<<31); //UART0 TXD/RXD ,EINT2 on P0.15

And the define for VIC_EINT2:
#define VIC_EINT2       16

I can´t recognize any toggles of the LED.

Thanks for your efforts.

Greetings






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