EXTINT on LPC 1768

Development Boards MicroMod
1

In LPC 2148 the configuranton off interrupt is VICVectAddr, but on LPC 1768 it´s doesn´t work, how can i configure the interrupt on lpc 1768?

2

The vectored interrupt controller used on the ARM7 LPC2xxx MCUs was implemented by NXP as an additional feature. The nested vectored interrupt controller on the LPC17xx MCUs (e.g. the LPC1768) is implemented by ARM as an integral part of the Cortex-M3 design. The mechanisms and their use are different.

Read Chapter 6 in the LPC17xx User Manual (UM10360) and check the documentation and examples supplied with your LPC17xx development system to find out how to configure interrupts on the LPC1768.

3

Thank´s cfb!!

4

I´m using RL-arm, and i cant´s do this extern interrupt work! someone have a exemple of extern interrupt on LPC 1768 using RTOS keil?

i try this but doens´t work!

void BUTTON_init(void) {
  LPC_GPIO2->FIODIR      &= ~(1 << 10);    /* PORT2.10 defined as input       */
  LPC_GPIOINT->IO2IntEnF |=  (1 << 10);    /* enable falling edge irq         */

  NVIC_EnableIRQ(EINT3_IRQn);              /* enable irq in nvic              */
}


void EINT3_IRQHandler()
{
  LPC_GPIOINT->IO2IntClr |= (1 << 10);     /* clear pending interrupt         */

  LPC_GPIO2->FIOSET =0xffffffff;

}

than i put a tool box whit a interrupt button on PORT2.10, but my code don´s do nothing!!

5

verd:
I´m using RL-arm, and i cant´s do this extern interrupt work! someone have a exemple of extern interrupt on LPC 1768 using RTOS keil?

Try asking on the Keil Discussion Forum:

http://www.keil.com/forum/threads.asp

6

Thank´s cfb!!!

7

I have lpc 2148

When I am load hex code of buzzer which in the CD of study material in the lpc 2148 and reset the board by removing jumper (j21), (j17) and (j27) and then when I put jumper (j5) and EXT.INT jumper(j16) and also put power supply jumper (j27) . Then no beep or sound is produce when push the EXT.INT switch (s17) . Please explain me clearly why problem is still ?.