Всем день добрый. Разбираюсь с прерываниями LPC176x в IAR 6.21, столкнулся с такой проблемой:
1. Настроен таймер на генерацию прерываний
2. Определена функция void TIMER0_IRQHandler(void) согласно наименованию в startup_LPC17xx.s, который подключен к проекту и не изменялся
3. После запуска программы перехода на мою функцию нет, такое ощущение, что программа переходит на дефолтную, определённую в startup_LPC17xx.s и зацикливается
Выкидывал из проекта startup_LPC17xx.s, определял векторы/функции через отдельный файл vector_table_M.c, всё работает как надо, переходы фиксируются. Листинг указанного файла:
CODE
//-------------------------------------------------------------------------------
#pragma language=extended
#pragma segment="CSTACK"
//-------------------------------------------------------------------------------
extern "C" void __iar_program_start( void );
//-------------------------------------------------------------------------------
__weak void NMI_Handler( void ) { while (1) {} }
__weak void HardFault_Handler( void ) { while (1) {} }
__weak void MemManage_Handler( void ) { while (1) {} }
__weak void BusFault_Handler( void ) { while (1) {} }
__weak void UsageFault_Handler( void ) { while (1) {} }
__weak void SVC_Handler( void ) { while (1) {} }
__weak void DebugMon_Handler( void ) { while (1) {} }
__weak void PendSV_Handler( void ) { while (1) {} }
__weak void SysTick_Handler( void ) { while (1) {} }
__weak void WDT_IRQHandler( void ) { while (1) {} }
__weak void TIMER0_IRQHandler( void ) { while (1) {} }
__weak void TIMER1_IRQHandler( void ) { while (1) {} }
__weak void TIMER2_IRQHandler( void ) { while (1) {} }
__weak void TIMER3_IRQHandler( void ) { while (1) {} }
__weak void UART0_IRQHandler( void ) { while (1) {} }
__weak void UART1_IRQHandler( void ) { while (1) {} }
__weak void UART2_IRQHandler( void ) { while (1) {} }
__weak void UART3_IRQHandler( void ) { while (1) {} }
__weak void PWM1_IRQHandler( void ) { while (1) {} }
__weak void I2C0_IRQHandler( void ) { while (1) {} }
__weak void I2C1_IRQHandler( void ) { while (1) {} }
__weak void I2C2_IRQHandler( void ) { while (1) {} }
__weak void SPI_IRQHandler( void ) { while (1) {} }
__weak void SSP0_IRQHandler( void ) { while (1) {} }
__weak void SSP1_IRQHandler( void ) { while (1) {} }
__weak void PLL0_IRQHandler( void ) { while (1) {} }
__weak void RTC_IRQHandler( void ) { while (1) {} }
__weak void EINT0_IRQHandler( void ) { while (1) {} }
__weak void EINT1_IRQHandler( void ) { while (1) {} }
__weak void EINT2_IRQHandler( void ) { while (1) {} }
__weak void EINT3_IRQHandler( void ) { while (1) {} }
__weak void ADC_IRQHandler( void ) { while (1) {} }
__weak void BOD_IRQHandler( void ) { while (1) {} }
__weak void USB_IRQHandler( void ) { while (1) {} }
__weak void CAN_IRQHandler( void ) { while (1) {} }
__weak void GPDMA_IRQHandler( void ) { while (1) {} }
__weak void I2S_IRQHandler( void ) { while (1) {} }
__weak void Ethernet_IRQHandler( void ) { while (1) {} }
__weak void RIT_IRQHandler( void ) { while (1) {} }
__weak void MotorControlPWM_IRQHandler( void ) { while (1) {} }
__weak void QE_IRQHandler( void ) { while (1) {} }
__weak void PLL1_IRQHandler( void ) { while (1) {} }
//-------------------------------------------------------------------------------
typedef void( *intfunc )( void );
typedef union { intfunc __fun; void * __ptr; } intvec_elem;
//-------------------------------------------------------------------------------
#pragma location = ".intvec"
extern "C" const intvec_elem __vector_table[]=
{
{ .__ptr = __sfe( "CSTACK" ) },
__iar_program_start,
NMI_Handler,
HardFault_Handler,
MemManage_Handler,
BusFault_Handler,
UsageFault_Handler,
0,
0,
0,
0,
SVC_Handler,
DebugMon_Handler,
0,
PendSV_Handler,
SysTick_Handler,
WDT_IRQHandler,
TIMER0_IRQHandler,
TIMER1_IRQHandler,
TIMER2_IRQHandler,
TIMER3_IRQHandler,
UART0_IRQHandler,
UART1_IRQHandler,
UART2_IRQHandler,
UART3_IRQHandler,
PWM1_IRQHandler,
I2C0_IRQHandler,
I2C1_IRQHandler,
I2C2_IRQHandler,
SPI_IRQHandler,
SSP0_IRQHandler,
SSP1_IRQHandler,
PLL0_IRQHandler,
RTC_IRQHandler,
EINT0_IRQHandler,
EINT1_IRQHandler,
EINT2_IRQHandler,
EINT3_IRQHandler,
ADC_IRQHandler,
BOD_IRQHandler,
USB_IRQHandler,
CAN_IRQHandler,
GPDMA_IRQHandler,
I2S_IRQHandler,
Ethernet_IRQHandler,
RIT_IRQHandler,
MotorControlPWM_IRQHandler,
QE_IRQHandler,
PLL1_IRQHandler
};
//-------------------------------------------------------------------------------
Помогите разобраться, в чём может быть проблема? Нужно ли что-то менять в startup_LPC17xx.s? Листинг стандартного:
CODE
; Cortex-M version
;
MODULE ?cstartup
;; Forward declaration of sections.
SECTION CSTACK:DATA:NOROOT(3)
SECTION .intvec:CODE:NOROOT(2)
EXTERN __iar_program_start
EXTERN SystemInit
PUBLIC __vector_table
PUBLIC __vector_table_0x1c
PUBLIC __Vectors
PUBLIC __Vectors_End
PUBLIC __Vectors_Size
DATA
__vector_table
DCD sfe(CSTACK)
DCD Reset_Handler
DCD NMI_Handler
DCD HardFault_Handler
DCD MemManage_Handler
DCD BusFault_Handler
DCD UsageFault_Handler
__vector_table_0x1c
DCD 0
DCD 0
DCD 0
DCD 0
DCD SVC_Handler
DCD DebugMon_Handler
DCD 0
DCD PendSV_Handler
DCD SysTick_Handler
; External Interrupts
DCD WDT_IRQHandler ; 16: Watchdog Timer
DCD TIMER0_IRQHandler ; 17: Timer0
DCD TIMER1_IRQHandler ; 18: Timer1
DCD TIMER2_IRQHandler ; 19: Timer2
DCD TIMER3_IRQHandler ; 20: Timer3
DCD UART0_IRQHandler ; 21: UART0
DCD UART1_IRQHandler ; 22: UART1
DCD UART2_IRQHandler ; 23: UART2
DCD UART3_IRQHandler ; 24: UART3
DCD PWM1_IRQHandler ; 25: PWM1
DCD I2C0_IRQHandler ; 26: I2C0
DCD I2C1_IRQHandler ; 27: I2C1
DCD I2C2_IRQHandler ; 28: I2C2
DCD SPI_IRQHandler ; 29: SPI
DCD SSP0_IRQHandler ; 30: SSP0
DCD SSP1_IRQHandler ; 31: SSP1
DCD PLL0_IRQHandler ; 32: PLL0 Lock (Main PLL)
DCD RTC_IRQHandler ; 33: Real Time Clock
DCD EINT0_IRQHandler ; 34: External Interrupt 0
DCD EINT1_IRQHandler ; 35: External Interrupt 1
DCD EINT2_IRQHandler ; 36: External Interrupt 2
DCD EINT3_IRQHandler ; 37: External Interrupt 3
DCD ADC_IRQHandler ; 38: A/D Converter
DCD BOD_IRQHandler ; 39: Brown-Out Detect
DCD USB_IRQHandler ; 40: USB
DCD CAN_IRQHandler ; 41: CAN
DCD DMA_IRQHandler ; 42: General Purpose DMA
DCD I2S_IRQHandler ; 43: I2S
DCD ENET_IRQHandler ; 44: Ethernet
DCD RIT_IRQHandler ; 45: Repetitive Interrupt Timer
DCD MCPWM_IRQHandler ; 46: Motor Control PWM
DCD QEI_IRQHandler ; 47: Quadrature Encoder Interface
DCD PLL1_IRQHandler ; 48: PLL1 Lock (USB PLL)
__Vectors_End
__Vectors EQU __vector_table
__Vectors_Size EQU __Vectors_End - __Vectors
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; Default interrupt handlers.
;;
THUMB
PUBWEAK Reset_Handler
SECTION .text:CODE:REORDER(2)
Reset_Handler
LDR R0, =SystemInit
BLX R0
LDR R0, =__iar_program_start
BX R0
PUBWEAK NMI_Handler
SECTION .text:CODE:REORDER(1)
NMI_Handler
B NMI_Handler
PUBWEAK HardFault_Handler
SECTION .text:CODE:REORDER(1)
HardFault_Handler
B HardFault_Handler
PUBWEAK MemManage_Handler
SECTION .text:CODE:REORDER(1)
MemManage_Handler
B MemManage_Handler
PUBWEAK BusFault_Handler
SECTION .text:CODE:REORDER(1)
BusFault_Handler
B BusFault_Handler
PUBWEAK UsageFault_Handler
SECTION .text:CODE:REORDER(1)
UsageFault_Handler
B UsageFault_Handler
PUBWEAK SVC_Handler
SECTION .text:CODE:REORDER(1)
SVC_Handler
B SVC_Handler
PUBWEAK DebugMon_Handler
SECTION .text:CODE:REORDER(1)
DebugMon_Handler
B DebugMon_Handler
PUBWEAK PendSV_Handler
SECTION .text:CODE:REORDER(1)
PendSV_Handler
B PendSV_Handler
PUBWEAK SysTick_Handler
SECTION .text:CODE:REORDER(1)
SysTick_Handler
B SysTick_Handler
PUBWEAK WDT_IRQHandler
SECTION .text:CODE:REORDER(1)
WDT_IRQHandler
B WDT_IRQHandler
PUBWEAK TIMER0_IRQHandler
SECTION .text:CODE:REORDER(1)
TIMER0_IRQHandler
B TIMER0_IRQHandler
PUBWEAK TIMER1_IRQHandler
SECTION .text:CODE:REORDER(1)
TIMER1_IRQHandler
B TIMER1_IRQHandler
PUBWEAK TIMER2_IRQHandler
SECTION .text:CODE:REORDER(1)
TIMER2_IRQHandler
B TIMER2_IRQHandler
PUBWEAK TIMER3_IRQHandler
SECTION .text:CODE:REORDER(1)
TIMER3_IRQHandler
B TIMER3_IRQHandler
PUBWEAK UART0_IRQHandler
SECTION .text:CODE:REORDER(1)
UART0_IRQHandler
B UART0_IRQHandler
PUBWEAK UART1_IRQHandler
SECTION .text:CODE:REORDER(1)
UART1_IRQHandler
B UART1_IRQHandler
PUBWEAK UART2_IRQHandler
SECTION .text:CODE:REORDER(1)
UART2_IRQHandler
B UART2_IRQHandler
PUBWEAK UART3_IRQHandler
SECTION .text:CODE:REORDER(1)
UART3_IRQHandler
B UART3_IRQHandler
PUBWEAK PWM1_IRQHandler
SECTION .text:CODE:REORDER(1)
PWM1_IRQHandler
B PWM1_IRQHandler
PUBWEAK I2C0_IRQHandler
SECTION .text:CODE:REORDER(1)
I2C0_IRQHandler
B I2C0_IRQHandler
PUBWEAK I2C1_IRQHandler
SECTION .text:CODE:REORDER(1)
I2C1_IRQHandler
B I2C1_IRQHandler
PUBWEAK I2C2_IRQHandler
SECTION .text:CODE:REORDER(1)
I2C2_IRQHandler
B I2C2_IRQHandler
PUBWEAK SPI_IRQHandler
SECTION .text:CODE:REORDER(1)
SPI_IRQHandler
B SPI_IRQHandler
PUBWEAK SSP0_IRQHandler
SECTION .text:CODE:REORDER(1)
SSP0_IRQHandler
B SSP0_IRQHandler
PUBWEAK SSP1_IRQHandler
SECTION .text:CODE:REORDER(1)
SSP1_IRQHandler
B SSP1_IRQHandler
PUBWEAK PLL0_IRQHandler
SECTION .text:CODE:REORDER(1)
PLL0_IRQHandler
B PLL0_IRQHandler
PUBWEAK RTC_IRQHandler
SECTION .text:CODE:REORDER(1)
RTC_IRQHandler
B RTC_IRQHandler
PUBWEAK EINT0_IRQHandler
SECTION .text:CODE:REORDER(1)
EINT0_IRQHandler
B EINT0_IRQHandler
PUBWEAK EINT1_IRQHandler
SECTION .text:CODE:REORDER(1)
EINT1_IRQHandler
B EINT1_IRQHandler
PUBWEAK EINT2_IRQHandler
SECTION .text:CODE:REORDER(1)
EINT2_IRQHandler
B EINT2_IRQHandler
PUBWEAK EINT3_IRQHandler
SECTION .text:CODE:REORDER(1)
EINT3_IRQHandler
B EINT3_IRQHandler
PUBWEAK ADC_IRQHandler
SECTION .text:CODE:REORDER(1)
ADC_IRQHandler
B ADC_IRQHandler
PUBWEAK BOD_IRQHandler
SECTION .text:CODE:REORDER(1)
BOD_IRQHandler
B BOD_IRQHandler
PUBWEAK USB_IRQHandler
SECTION .text:CODE:REORDER(1)
USB_IRQHandler
B USB_IRQHandler
PUBWEAK CAN_IRQHandler
SECTION .text:CODE:REORDER(1)
CAN_IRQHandler
B CAN_IRQHandler
PUBWEAK DMA_IRQHandler
SECTION .text:CODE:REORDER(1)
DMA_IRQHandler
B DMA_IRQHandler
PUBWEAK I2S_IRQHandler
SECTION .text:CODE:REORDER(1)
I2S_IRQHandler
B I2S_IRQHandler
PUBWEAK ENET_IRQHandler
SECTION .text:CODE:REORDER(1)
ENET_IRQHandler
B ENET_IRQHandler
PUBWEAK RIT_IRQHandler
SECTION .text:CODE:REORDER(1)
RIT_IRQHandler
B RIT_IRQHandler
PUBWEAK MCPWM_IRQHandler
SECTION .text:CODE:REORDER(1)
MCPWM_IRQHandler
B MCPWM_IRQHandler
PUBWEAK QEI_IRQHandler
SECTION .text:CODE:REORDER(1)
QEI_IRQHandler
B QEI_IRQHandler
PUBWEAK PLL1_IRQHandler
SECTION .text:CODE:REORDER(1)
PLL1_IRQHandler
B PLL1_IRQHandler
END
Сообщение отредактировал IgorKossak - Aug 25 2011, 14:07
Не работают прерывания в LPC176x, нет перехода на переопределённый обработчик
Aug 25 2011, 12:09
