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[FreeRTOS Home] [Live FreeRTOS Forum] [FAQ] [Archive Top] [December 2009 Threads] Help with isrPosted by Aditya Gandhi on December 18, 2009 When I configure port b buttons as isr and give their vector as a function , on the interrupt the processor seems to reset , I guess the vector adderess is wrong.
My processor is at91sam7x256
**This is my button_isr.c file**
extern int i; //////////////////////////////////
void ISR_Button_hand1( void ) { //PIO_DisableIt(&pinPB1); printf("\n\r int1"); i =1; AT91C_BASE_AIC->AIC_EOICR = 0; } void ISR_Button_hand2( void ) { //PIO_DisableIt(&pinPB1); printf("\n\r int2"); i =2; AT91C_BASE_AIC->AIC_EOICR = 0; } void ISR_Button_hand3( void ) { //PIO_DisableIt(&pinPB1); printf("\n\r int3"); i =3; AT91C_BASE_AIC->AIC_EOICR = 0; }
void ISR_Button1(void) { portSAVE_CONTEXT(); __asm volatile ("bl ISR_Button_hand1"); portRESTORE_CONTEXT(); //return; }
void ISR_Button2(void) { portSAVE_CONTEXT();
__asm volatile ("bl ISR_Button_hand2");
portRESTORE_CONTEXT(); //return; }
void ISR_Button3(void) { portSAVE_CONTEXT(); __asm volatile ("bl ISR_Button_hand3"); portRESTORE_CONTEXT(); //return; }
**This is my button_isr.h file**
#ifndef HMI_ISR_H_ #define HMI_ISR_H_
#endif /* HMI_ISR_H_ */
void ISR_Button1( void ) __attribute__((naked)); void ISR_Button2( void ) __attribute__((naked)); void ISR_Button3( void ) __attribute__((naked));
void ISR_Button_hand1( void ) __attribute__((noinline)); void ISR_Button_hand2( void ) __attribute__((noinline)); void ISR_Button_hand3( void ) __attribute__((noinline));
**This is My init hardware the first function that I call to initialise my buttons using standard atmel library**
AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_PIOA; AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_PIOB; //AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_EMAC;
PIO_Configure(&pinPB1, 1); PIO_Configure(&pinPB2, 1); PIO_Configure(&pinPB3, 1); PIO_InitializeInterrupts((AT91C_AIC_PRIOR_LOWEST | AT91C_AIC_SRCTYPE_EXT_LOW_LEVEL)); PIO_ConfigureIt(&pinPB1, ( void (*)( void ) )ISR_Button1); PIO_ConfigureIt(&pinPB2, ( void (*)( void ) ) ISR_Button2); PIO_ConfigureIt(&pinPB3, (void (*)(const Pin *)) ISR_Button3); printf("\n\rconfig done"); printf("\n\rinterrupt init 1 done"); PIO_EnableIt(&pinPB1); printf("\n\rinterrupt init 2 done"); PIO_EnableIt(&pinPB2); printf("\n\rinterrupt init 3 done"); PIO_EnableIt(&pinPB3); printf("\n\rinterrupt init 4 done");
LcdInit();
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need help
RE: Help with isrPosted by Dave on December 19, 2009 Sorry but the code is too jumbled up to read. If you post it again start each line with a tab.
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