uCLinux

Again thank you parrrado

I have another question. I made a program to handle the interrupts when I worked without µClinux in Nios IDE. Do I have to made modifications so that µClinux can read this program and do what I want my nios to do? Here is my program:# include "alt_types.h"# include "altera_avalon_pio_regs.h"# include "sys/alt_irq.h"# include "system.h"# include <stdio.h># include <unistd.h>

volatile int edge_capture;

# ifdef GPIO_A0_BASE# ifdef SORTIE_GPIO_1_BASE

static void handle_button_interrupts(void* context, alt_u32 id)

{

/* Cast context to edge_capture's type. It is important that this be

* declared volatile to avoid unwanted compiler optimization.

*/

volatile int *edge_capture_ptr = (volatile int*) context;

/* Store the value in the PIO's edge capture register in *context. */

*edge_capture_ptr = IORD_ALTERA_AVALON_PIO_EDGE_CAP(GPIO_A0_BASE);

IOWR_ALTERA_AVALON_PIO_DATA(SORTIE_GPIO_1_BASE,1);

/* Reset the PIO's edge capture register. */

IOWR_ALTERA_AVALON_PIO_EDGE_CAP(GPIO_A0_BASE, 0);

IORD_ALTERA_AVALON_PIO_EDGE_CAP(GPIO_A0_BASE); //An extra read call to clear of delay through the bridge

IOWR_ALTERA_AVALON_PIO_DATA(SORTIE_GPIO_1_BASE,0);

}

/* Initialize the GPIO_INPUT. */

static void init_GPIO_A0()

{

/* Recast the edge_capture pointer to match the alt_irq_register() function

* prototype. */

void* edge_capture_ptr = (void*) &edge_capture;

/* Enable the PIO interrupt. */

IOWR_ALTERA_AVALON_PIO_IRQ_MASK(GPIO_A0_BASE, 0xf);

/* Reset the edge capture register. */

IOWR_ALTERA_AVALON_PIO_EDGE_CAP(GPIO_A0_BASE, 0x0);

/* Register the interrupt handler. */

alt_irq_register( GPIO_A0_IRQ, edge_capture_ptr,

handle_button_interrupts );

}# endif# endif

int main(void)

{

# ifdef GPIO_A0_BASE

init_GPIO_A0();

# endif

while(1)

{

if (edge_capture!=0)

{

# ifdef LED_R_BASE

IOWR_ALTERA_AVALON_PIO_DATA(LED_R_BASE,1);

usleep(10);

IOWR_ALTERA_AVALON_PIO_DATA(LED_R_BASE,0);

# endif

edge_capture=0;

}

}

return 0;

}