ext_irq.c

ATMEL AT91SAM9260的中段控制程序！

/*-----------------------------------------------------------------------------
 *           ATMEL Microcontroller Software Support  -  ROUSSET  -
 *-----------------------------------------------------------------------------
 * DISCLAIMER:  THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
 * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *----------------------------------------------------------------------------
 * File Name           : ext_irq.c
 * Object              : External interrupt handler for IRQ and FIQ
 *
 * 1.0 06/Sep/06 JPP   : Creation
 *----------------------------------------------------------------------------
*/

static int status_fiq = 0 ;
static int status_irq = 0 ;

//*----------------------------------------------------------------------------
//* Function Name       : at91_IRQ0_handler
//* Object              : Irq Handler called by the IRQ0 interrupt with AT91
//*                       compatibility
//*----------------------------------------------------------------------------
void at91_IRQ0_handler(void)
{
    status_irq++ ;
}

//*----------------------------------------------------------------------------
//* Function Name       : FIQ_init_handler
//* Object              : Irq Handler called by the FIQ interrupt with AT91
//*                       compatibility
///*----------------------------------------------------------------------------
void FIQ_init_handler(void)
{
    status_fiq++;
}