인터럽트 벡터 위치 확인과 변경

정식으로 드라이버와 데이터 시트를 받지 못했을 경우 인터럽트 벡터 위치를 직접 확인해서 넣어야하는 경우가 있습니다.

그럴때 다소 귀찮긴 하지만 하나씩 인터럽트 벡터를 살린 후 데이터가 들어오는 인터럽트 벡터 번호를 찾아서 매핑해주면 사용할 수 있습니다.

Uart0번의 벡터를 체크한 부분입니다. 인터럽트와 별도로 Uart 설정은 따로 해주어야 합니다.

 

 

void INT_All_Enable(void)
{
int Interrupt_Vector_Num = 0;
DEBUGPRINT("\r\n NORMAL MODE TEST");
for( Interrupt_Vector_Num= 0; Interrupt_Vector_Num < 239; Interrupt_Vector_Num++){
NVIC_ClearPendingIRQ(Interrupt_Vector_Num);
NVIC_EnableIRQ(Interrupt_Vector_Num);
}
}

 

 

xxxx_it.h

void NMI_Handler(void)
{
}

void HardFault_Handler(void)
{
}

void MemManage_Handler(void)
{
}

void BusFault_Handler(void)
{
}

void UsageFault_Handler(void)
{
}

void SVC_Handler(void)
{
}

void DebugMon_Handler(void)
{
}

void PendSV_Handler(void)
{
}

void SysTick_Handler(void)
{
UART0_Printf("SysTick_Handler\r\n");
}

void UART0_IRQHandler(void)
{
UART0_Printf("UART0_IRQHandler\r\n"); 

}

void DUALTIMER0_Handler(void)
{
}

void TIMER0_IRQHandler(void)
{
}

void TIMER1_IRQHandler(void)
{
}

void UNKNOWN0_IRQHandler(void){UART0_Printf("UNKNOWN0_IRQHandler\r\n");}
void UNKNOWN1_IRQHandler(void){UART0_Printf("UNKNOWN1_IRQHandler\r\n");}
void UNKNOWN2_IRQHandler(void){UART0_Printf("UNKNOWN2_IRQHandler\r\n");}
void UNKNOWN3_IRQHandler(void){UART0_Printf("UNKNOWN3_IRQHandler\r\n");}
void UNKNOWN4_IRQHandler(void){UART0_Printf("UNKNOWN4_IRQHandler\r\n");}
......... 중략 ............ 
void UNKNOWN237_IRQHandler(void){UART0_Printf("UNKNOWN237_IRQHandler\r\n");}

 

 

 

core_cm.h

/*
 * ==========================================================================
 * ---------- Interrupt Number Definition -----------------------------------
 * ==========================================================================
 */

typedef enum IRQn
{
/******  Cortex-M3 Processor Exceptions Numbers ***************************************************/
  NonMaskableInt_IRQn           = -14,    /*!<  2 Cortex-Mx Non Maskable Interrupt                        */
  HardFault_IRQn                = -13,    /*!<  3 Cortex-Mx Hard Fault Interrupt                          */
  MemoryManagement_IRQn         = -12,    /*!<  4 Cortex-Mx Memory Management Interrupt            */
  BusFault_IRQn                 = -11,    /*!<  5 Cortex-Mx Bus Fault Interrupt                    */
  UsageFault_IRQn               = -10,    /*!<  6 Cortex-Mx Usage Fault Interrupt                  */
  SVCall_IRQn                   = -5,     /*!< 11 Cortex-Mx SV Call Interrupt                      */
  DebugMonitor_IRQn             = -4,     /*!< 12 Cortex-Mx Debug Monitor Interrupt                */
  PendSV_IRQn                   = -2,     /*!< 14 Cortex-Mx Pend SV Interrupt                      */
  SysTick_IRQn                  = -1,     /*!< 15 Cortex-Mx System Tick Interrupt                  */

/******  CMSDK Specific Interrupt Numbers *******************************************************/
 WDT_IRQn            =  0,    
UNKNOWN0_IRQn = 1,           
UNKNOWN1_IRQn = 2,          
UNKNOWN2_IRQn = 3,          
UART0_IRQn = 4,         
UNKNOWN3_IRQn = 5,         
UNKNOWN4_IRQn = 6,          
UNKNOWN5_IRQn = 7,           
TIMER0_IRQn = 8,          
TIMER1_IRQn = 9,          
DUALTIMER0_IRQn = 10,         
UNKNOWN9_IRQn = 11,          
UNKNOWN10_IRQn = 12,           
UNKNOWN11_IRQn = 13,          
UNKNOWN12_IRQn = 14,           

......... 중략 ............

UNKNOWN237_IRQn = 239  

} IRQn_Type;

 

startup_xxx.s

Stack_Size      EQU     0x0000800

......... 중략 ............

                PRESERVE8
                THUMB


; Vector Table Mapped to Address 0 at Reset

                AREA    RESET, DATA, READONLY
                EXPORT  __Vectors
                EXPORT  __Vectors_End
                EXPORT  __Vectors_Size

__Vectors       DCD     __initial_sp              ; Top of Stack
                DCD     Reset_Handler             ; Reset Handler
                DCD     NMI_Handler               ; NMI Handler
                DCD     HardFault_Handler         ; Hard Fault Handler
                DCD     MemManage_Handler         ; MPU Fault Handler
                DCD     BusFault_Handler          ; Bus Fault Handler
                DCD     UsageFault_Handler        ; Usage Fault Handler
                DCD     0                         ; Reserved
                DCD     0                         ; Reserved
                DCD     0                         ; Reserved
                DCD     0                         ; Reserved
                DCD     SVC_Handler               ; SVCall Handler
                DCD     DebugMon_Handler          ; Debug Monitor Handler
                DCD     0                         ; Reserved
                DCD     PendSV_Handler            ; PendSV Handler
                DCD     SysTick_Handler           ; SysTick Handler

                ; External Interrupts
                DCD WDT_IRQHandler           ;  
                DCD UNKNOWN0_IRQHandler           ;  
                DCD UNKNOWN1_IRQHandler          ;  
                DCD UNKNOWN2_IRQHandler          ;  
                DCD     UART0_IRQHandler          
                DCD UNKNOWN3_IRQHandler         ;  
                DCD UNKNOWN4_IRQHandler          ;  
                DCD UNKNOWN5_IRQHandler           ;  
                DCD TIMER0_IRQHandler          ;  
                DCD TIMER1_IRQHandler          ;  
                DCD DUALTIMER0_Handler         ;  
                DCD UNKNOWN9_IRQHandler          ;  
                DCD UNKNOWN10_IRQHandler           ;  
                DCD UNKNOWN11_IRQHandler          ;  
                DCD UNKNOWN12_IRQHandler          ;  
                DCD UNKNOWN13_IRQHandler         ;  
                DCD UNKNOWN14_IRQHandler          ;  

........ 중략 ............

                DCD UNKNOWN237_IRQHandler   

........ 중략 ............

Default_Handler PROC

                EXPORT  WDT_IRQHandler            [WEAK]
                EXPORT  UNKNOWN0_IRQHandler            [WEAK]
                EXPORT  UNKNOWN1_IRQHandler           [WEAK]
                EXPORT  UNKNOWN2_IRQHandler           [WEAK]
                EXPORT  UART0_IRQHandler          [WEAK]
                EXPORT  UNKNOWN3_IRQHandler          [WEAK]
                EXPORT  UNKNOWN4_IRQHandler           [WEAK]
                EXPORT  UNKNOWN5_IRQHandler            [WEAK]
                EXPORT  TIMER0_IRQHandler           [WEAK]
                EXPORT  TIMER1_IRQHandler           [WEAK]
                EXPORT  DUALTIMER0_Handler          [WEAK]
                EXPORT  UNKNOWN9_IRQHandler           [WEAK]
                EXPORT  UNKNOWN10_IRQHandler            [WEAK]
                EXPORT  UNKNOWN11_IRQHandler           [WEAK]
                EXPORT  UNKNOWN12_IRQHandler           [WEAK]
                EXPORT  UNKNOWN13_IRQHandler          [WEAK]
                EXPORT  UNKNOWN14_IRQHandler           [WEAK]

......... 중략 ............

 

                EXPORT  UNKNOWN237_IRQHandler           [WEAK]

 

......... 중략 ............

WDT_IRQHandler            
UNKNOWN0_IRQHandler            
UNKNOWN1_IRQHandler           
UNKNOWN2_IRQHandler           
UART0_IRQHandler          
UNKNOWN3_IRQHandler          
UNKNOWN4_IRQHandler           
UNKNOWN5_IRQHandler            
TIMER0_IRQHandler           
TIMER1_IRQHandler           
DUALTIMER0_Handler          
UNKNOWN9_IRQHandler           
UNKNOWN10_IRQHandler            
UNKNOWN11_IRQHandler           
UNKNOWN12_IRQHandler           
UNKNOWN13_IRQHandler          
UNKNOWN14_IRQHandler           

......... 중략 ............

 

UNKNOWN237_IRQHandler   

 

 

                BX      LR
                ENDP

                ALIGN

                ENDIF


                END