P1口设为外部中断的问题

Amos Chen

Intellectual 652 points

Other Parts Discussed in Thread: CC2540

怎么将P1口设为外部中断呢？就像P0口的按键一样使用，试了几天了还是不行。

求TI的工程师和路过的各位大神能指点一下

11 年多前

0 Susan Yang 11 年多前

TI__Guru**** 252096 points

把程序贴出来看看

0 Amos Chen 11 年多前回复 Susan Yang

Intellectual 652 points

好的，下面就是我改动的程序：

/* CPU port interrupt */
#define HAL_KEY_CPU_PORT_0_IF P0IF
#define HAL_KEY_CPU_PORT_1_IF P2IF
#define HAL_KEY_CPU_PORT_2_IF P2IF

#if defined ( CC2540_MINIDK )||( WEBEE_BOARD )
/* SW_1 is at P0.0 */
#define HAL_KEY_SW_1_PORT   P0
#define HAL_KEY_SW_1_BIT    BV(0)
#define HAL_KEY_SW_1_SEL    P0SEL
#define HAL_KEY_SW_1_DIR    P0DIR

/* SW_2 is at P1.6 */
#define HAL_KEY_SW_2_PORT   P1
#define HAL_KEY_SW_2_BIT    BV(6)
#define HAL_KEY_SW_2_SEL    P1SEL
#define HAL_KEY_SW_2_DIR    P1DIR

#define HAL_KEY_SW_1_IEN      IEN1 /* CPU interrupt mask register */
#define HAL_KEY_SW_1_ICTL     P0IEN /* Port Interrupt Control register */
#define HAL_KEY_SW_1_ICTLBIT BV(0) /* P0IEN - P0.0 enable/disable bit */
#define HAL_KEY_SW_1_IENBIT   BV(5) /* Mask bit for all of Port_0 */

#define HAL_KEY_SW_1_PXIFG    P0IFG /* Interrupt flag at source */
#define HAL_KEY_SW_2_IEN      IEN2 /* CPU interrupt mask register */
#define HAL_KEY_SW_2_ICTL     P1IEN /* Port Interrupt Control register */
#define HAL_KEY_SW_2_ICTLBIT BV(6) /* P0IEN - P0.1 enable/disable bit */
#define HAL_KEY_SW_2_IENBIT   BV(4) /* Mask bit for all of Port_0 */
#define HAL_KEY_SW_2_PXIFG    P1IFG /* Interrupt flag at source */

#define HAL_KEY_SW_1_EDGEBIT BV(0)

#else

//P0口中断程序

HAL_ISR_FUNCTION( halKeyPort0Isr, P0INT_VECTOR )
{
HAL_ENTER_ISR();
#if defined ( CC2540_MINIDK )||( WEBEE_BOARD )
if ((HAL_KEY_SW_1_PXIFG & HAL_KEY_SW_1_BIT))
#else
if (HAL_KEY_SW_6_PXIFG & HAL_KEY_SW_6_BIT)
#endif
{
halProcessKeyInterrupt();
}
#if defined ( CC2540_MINIDK )||( WEBEE_BOARD )
HAL_KEY_SW_1_PXIFG = 0;
HAL_KEY_SW_2_PXIFG = 0;
#else
HAL_KEY_SW_6_PXIFG = 0;
#endif
HAL_KEY_CPU_PORT_0_IF = 0;
CLEAR_SLEEP_MODE();
HAL_EXIT_ISR();
return;
}

//P1口中断程序
HAL_ISR_FUNCTION( halKeyPort1Isr, P1INT_VECTOR )
{
HAL_ENTER_ISR();
#if defined ( CC2540_MINIDK )||( WEBEE_BOARD )
if ((HAL_KEY_SW_2_PXIFG & HAL_KEY_SW_2_BIT))
#else
if (HAL_KEY_SW_6_PXIFG & HAL_KEY_SW_6_BIT)
#endif
{
halProcessKeyInterrupt();
}
#if defined ( CC2540_MINIDK )||( WEBEE_BOARD )
HAL_KEY_SW_1_PXIFG = 0;
HAL_KEY_SW_2_PXIFG = 0;
#else
HAL_KEY_SW_6_PXIFG = 0;
#endif
HAL_KEY_CPU_PORT_1_IF = 0;
CLEAR_SLEEP_MODE();
HAL_EXIT_ISR();
return;
}

//下面的是初始化部分

P0SEL = 0; // Configure Port 0 as GPIO
P1SEL = 0; // Configure Port 1 as GPIO
P2SEL = 0; // Configure Port 2 as GPIO

P0DIR = 0xFC;
P1DIR = 0xBF;
P2DIR = 0x1F;

P0 = 0x03;
P1 = 0x40;
P2 = 0;

// 这里是按键的函数

#if defined( CC2540_MINIDK )||( WEBEE_BOARD )
int num;
static void simpleBLEPeripheral_HandleKeys( uint8 shift, uint8 keys )
{
VOID shift; // Intentionally unreferenced parameter

if (keys & HAL_KEY_SW_1)
{
   num--;
}
if(keys & HAL_KEY_SW_2)
   {
       num++;
   }
}
#endif

所有改动的部分都在这里了，麻烦您帮忙看看问题究竟在哪？我看了好多次了还是不行，谢谢了

0 da qin zheng sheng 11 年多前

Guru 42895 points

在cc2540 usb dongle 测试通过！

中断功能：按键闪灯！

#include "ioCC2540.h"
void delay(void)
       {unsigned long i;
         for(i=0;i<100000;i++)
         asm(" nop ");
       }
#pragma vector   = P1INT_VECTOR

__interrupt void P1INT_ISR(void)
{P1IFG=0;
P1IF=0;

P0=0;

             delay();
             delay();
             delay();
             P0=0xff;

             delay();
             delay();
             delay();

}

void main()
    {
             P0SEL =0;
           P1SEL =0x0;
           P0DIR=0xff;
           P1DIR=0x02;
           PICTL = 0x02;
P1IEN=0x0c;
           IEN2=0x10;
           EA=1;

            while(1)
             {
             }
    }