intdemo2.c

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/****************************************Copyright (c)**************************************************
**                               Guangzhou ZHIYUAN electronics Co.,LTD.
**                                     
**                                 http://www.embedtools.com
**
**--------------File Info-------------------------------------------------------------------------------
** File Name: IntDemo2.c
** Last modified Date: 2006-11-15 
** Last Version: v1.0
** Description: Stellaris系列单片机 中断优先级示例程序。
** 
**------------------------------------------------------------------------------------------------------
** Created By: Zhou Lishan
** Created date: 2006-11-15 
** Version: v1.0
** Descriptions:
**
**------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
** Version:
** Description:
**
********************************************************************************************************/
#include "hw_ints.h"
#include "hw_nvic.h"
#include "hw_types.h"
#include "interrupt.h"
#include "sysctl.h"



volatile unsigned long g_ulIndex;
volatile unsigned long g_ulGPIOa;
volatile unsigned long g_ulGPIOb;
volatile unsigned long g_ulGPIOc;





void  GPIO_Port_A_ISR(void)
{

    g_ulGPIOa = g_ulIndex++;
}


void  GPIO_Port_B_ISR(void)
{

    HWREG(NVIC_SW_TRIG) = INT_GPIOA - 16;


    g_ulGPIOb = g_ulIndex++;

}


void  GPIO_Port_C_ISR(void)
{

    HWREG(NVIC_SW_TRIG) = INT_GPIOB - 16;

    g_ulGPIOc = g_ulIndex++;

}


int main(void)
{
    IntMasterEnable();

    IntEnable(INT_GPIOA);
    IntEnable(INT_GPIOB);
    IntEnable(INT_GPIOC);


    IntPrioritySet(INT_GPIOA, 0x00);
    IntPrioritySet(INT_GPIOB, 0x00);
    IntPrioritySet(INT_GPIOC, 0x00);


    g_ulGPIOa = 0;
    g_ulGPIOb = 0;
    g_ulGPIOc = 0;
    g_ulIndex = 1;


    HWREG(NVIC_SW_TRIG) = INT_GPIOC - 16;


    if((g_ulGPIOa != 3) || (g_ulGPIOb != 2) || (g_ulGPIOc != 1))
    {
        while(1);
    }

    IntPrioritySet(INT_GPIOA, 0x80);
    IntPrioritySet(INT_GPIOB, 0x40);
    IntPrioritySet(INT_GPIOC, 0x00);

    g_ulGPIOa = 0;
    g_ulGPIOb = 0;
    g_ulGPIOc = 0;
    g_ulIndex = 1;

    HWREG(NVIC_SW_TRIG) = INT_GPIOC - 16;


    if((g_ulGPIOa != 3) || (g_ulGPIOb != 2) || (g_ulGPIOc != 1))
    {
         while(1);
    }


    IntPrioritySet(INT_GPIOA, 0x00);
    IntPrioritySet(INT_GPIOB, 0x20);
    IntPrioritySet(INT_GPIOC, 0x40);


    g_ulGPIOa = 0;
    g_ulGPIOb = 0;
    g_ulGPIOc = 0;
    g_ulIndex = 1;


    HWREG(NVIC_SW_TRIG) = INT_GPIOC - 16;

    if((g_ulGPIOa != 1) || (g_ulGPIOb != 2) || (g_ulGPIOc != 3))
    {
         while(1);
    }


    IntDisable(INT_GPIOA);
    IntDisable(INT_GPIOB);
    IntDisable(INT_GPIOC);


    IntUnregister(INT_GPIOA);
    IntUnregister(INT_GPIOB);
    IntUnregister(INT_GPIOC);

    IntMasterDisable();
    while(1)  ;

}