求助 关于ARM M3 中断问题

 startup_ewarm.c 的配置如下
 
 
//*****************************************************************************
//
// startup_ewarm.c - Startup code for use with IAR's Embedded Workbench,
//                   version 5.
//
// Copyright (c) 2006-2012 Texas Instruments Incorporated.  All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 8555 of the EK-LM3S811 Firmware Package.
//
//*****************************************************************************
//*****************************************************************************
//
// Enable the IAR extensions for this source file.
//
//*****************************************************************************
#pragma language=extended
//*****************************************************************************
//
// Forward declaration of the default fault handlers.
//
//*****************************************************************************
void ResetISR(void);
static void NmiSR(void);
static void FaultISR(void);
static void IntDefaultHandler(void);
void GPIO_Port_B_ISR(void);   //没加 extern 关键字
//*****************************************************************************
//
// The entry point for the application startup code.
//
//*****************************************************************************
extern void __iar_program_start(void);
//*****************************************************************************
//
// Reserve space for the system stack.
//
//*****************************************************************************
static unsigned long pulStack[64] @ ".noinit";
//*****************************************************************************
//
// A union that describes the entries of the vector table.  The union is needed
// since the first entry is the stack pointer and the remainder are function
// pointers.
//
//*****************************************************************************
typedef union
[
   void (*pfnHandler)(void);
   unsigned long ulPtr;
]
uVectorEntry;
//*****************************************************************************
//
// The vector table.  Note that the proper constructs must be placed on this to
// ensure that it ends up at physical address 0x0000.0000.
//
//*****************************************************************************
__root const uVectorEntry __vector_table[] @ ".intvec" =
[
   [ .ulPtr = (unsigned long)pulStack + sizeof(pulStack) ],
//   __iar_program_start,                                        // The initial stack pointer
   ResetISR,                               // The reset handler
   NmiSR,                                  // The NMI handler
   FaultISR,                               // The hard fault handler
   IntDefaultHandler,                      // The MPU fault handler
   IntDefaultHandler,                      // The bus fault handler
   IntDefaultHandler,                      // The usage fault handler
   0,                                      // Reserved
   0,                                      // Reserved
   0,                                      // Reserved
   0,                                      // Reserved
   IntDefaultHandler,                      // SVCall handler
   IntDefaultHandler,                      // Debug monitor handler
   0,                                      // Reserved
   IntDefaultHandler,                      // The PendSV handler
   IntDefaultHandler,                      // The SysTick handler
   IntDefaultHandler,                      // GPIO Port A
   GPIO_Port_B_ISR,                      // GPIO Port B
   IntDefaultHandler,                      // GPIO Port C
   IntDefaultHandler,                      // GPIO Port D
   IntDefaultHandler,                      // GPIO Port E
   IntDefaultHandler,                      // UART0 Rx and Tx
   IntDefaultHandler,                      // UART1 Rx and Tx
   IntDefaultHandler,                      // SSI0 Rx and Tx
   IntDefaultHandler,                      // I2C0 Master and Slave
   IntDefaultHandler,                      // PWM Fault
   IntDefaultHandler,                      // PWM Generator 0
   IntDefaultHandler,                      // PWM Generator 1
   IntDefaultHandler,                      // PWM Generator 2
   IntDefaultHandler,                      // Quadrature Encoder 0
   IntDefaultHandler,                      // ADC Sequence 0
   IntDefaultHandler,                      // ADC Sequence 1
   IntDefaultHandler,                      // ADC Sequence 2
   IntDefaultHandler,                      // ADC Sequence 3
   IntDefaultHandler,                      // Watchdog timer
   IntDefaultHandler,                      // Timer 0 subtimer A
   IntDefaultHandler,                      // Timer 0 subtimer B
   IntDefaultHandler,                      // Timer 1 subtimer A
   IntDefaultHandler,                      // Timer 1 subtimer B
   IntDefaultHandler,                      // Timer 2 subtimer A
   IntDefaultHandler,                      // Timer 2 subtimer B
   IntDefaultHandler,                      // Analog Comparator 0
   IntDefaultHandler,                      // Analog Comparator 1
   IntDefaultHandler,                      // Analog Comparator 2
   IntDefaultHandler,                      // System Control (PLL, OSC, BO)
   IntDefaultHandler                       // FLASH Control
];
//*****************************************************************************
//
// This is the code that gets called when the processor first starts execution
// following a reset event.  Only the absolutely necessary set is performed,
// after which the application supplied entry() routine is called.  Any fancy
// actions (such as making decisions based on the reset cause register, and
// resetting the bits in that register) are left solely in the hands of the
// application.
//
//*****************************************************************************
void
ResetISR(void)
[
   //
   // Call the application's entry point.
   //
   __iar_program_start();
]
//*****************************************************************************
//
// This is the code that gets called when the processor receives a NMI.  This
// simply enters an infinite loop, preserving the system state for examination
// by a debugger.
//
//*****************************************************************************
static void
NmiSR(void)
[
   //
   // Enter an infinite loop.
   //
   while(1)
   [
   ]
]
//*****************************************************************************
//
// This is the code that gets called when the processor receives a fault
// interrupt.  This simply enters an infinite loop, preserving the system state
// for examination by a debugger.
//
//*****************************************************************************
static void
FaultISR(void)
[
   //
   // Enter an infinite loop.
   //
   while(1)
   [
   ]
]
//*****************************************************************************
//
// This is the code that gets called when the processor receives an unexpected
// interrupt.  This simply enters an infinite loop, preserving the system state
// for examination by a debugger.
//
//*****************************************************************************
static void
IntDefaultHandler(void)
[
   //
   // Go into an infinite loop.
   //
   while(1)
   [
   ]
]

fanhuaming fanhuaming :
这是全部的代码？怎么连时钟设置都没有呀

楼主检查下你中断向量表中中断的位置，看看是否正确，有可能跑到别的中断里去了
可以不用startup代码，参考driverlib的例程写一个试试：
int iVal;
//
// Register the port-level interrupt handler. This handler is the
// first level interrupt handler for all the pin interrupts.
//
GPIOPortIntRegister(GPIO_PORTA_BASE, PortAIntHandler);
//
// Initialize the GPIO pin configuration.
//
// Set pins 2, 4, and 5 as input, SW controlled.
//
GPIOPinTypeGPIOInput(GPIO_PORTA_BASE,
GPIO_PIN_2 | GPIO_PIN_4 | GPIO_PIN_5);
//
// Set pins 0 and 3 as output, SW controlled.
//
GPIOPinTypeGPIOOutput(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_3);
//
// Make pins 2 and 4 rising edge triggered interrupts.
//
GPIOIntTypeSet(GPIO_PORTA_BASE, GPIO_PIN_2 | GPIO_PIN_4, GPIO_RISING_EDGE);
//
// Make pin 5 high level triggered interrupts.
//
GPIOIntTypeSet(GPIO_PORTA_BASE, GPIO_PIN_5, GPIO_HIGH_LEVEL);
//
// Read some pins.
//
iVal = GPIOPinRead(GPIO_PORTA_BASE,
(GPIO_PIN_0 | GPIO_PIN_2 | GPIO_PIN_3 |
GPIO_PIN_4 | GPIO_PIN_5));
//
// Write some pins. Even though pins 2, 4, and 5 are specified, those
// pins are unaffected by this write because they are configured as inputs.
// At the end of this write, pin 0 will be a 0, and pin 3 will be a 1.
//
GPIOPinWrite(GPIO_PORTA_BASE,
(GPIO_PIN_0 | GPIO_PIN_2 | GPIO_PIN_3 |
GPIO_PIN_4 | GPIO_PIN_5),
0xF8);
//
// Enable the pin interrupts.
//
GPIOPinIntEnable(GPIO_PORTA_BASE, GPIO_PIN_2 | GPIO_PIN_4 | GPIO_PIN_5);

问题解决了，中断跟Backup of driverlib.a 也是有关系的。
我用TI函数库中的D:StellarisWaredriverlibewarm-cm3Exedriverlib-cm3.a这个文件一直进不了中断。。后来按照周立功的做法用IAR得新生成的Backup of driverlib.a 进中断可以。。

fanhuaming ：
  这种软件仿真的很多东西不可信。。。