Interrupt don't work

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Interrupt don't work

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kedja
Contributor I
Hi all,
I'm novice and i want to make an interrupt but this don't work...
In main.c
Code:
/* * main implementation: use this sample to create your own application * */#define __interrupt__   __declspec(interrupt)#include "support_common.h" /* include peripheral declarations and more */#include "MCF52235_GPIO.h"#if (CONSOLE_IO_SUPPORT || ENABLE_UART_SUPPORT) /* Standard IO is only possible if Console or UART support is enabled. */#include <stdio.h>#endifextern __interrupt__ void timer_handler(void);__interrupt__void timer_handler(void){ MCF_GPIO_PORTUB=0; MCF_GPIO_PORTUB^=0x01; MCF_PIT0_PCSR=0x109; MCF_PIT0_PCNTR=0x1F4;}int main(void){  mcf5xxx_irq_enable();  MCF_GPIO_PORTUB=0; MCF_GPIO_DDRUB=0x06;  while(1) {  MCF_GPIO_PORTUB^=0x02;  }}

 
In mcf52235_vector.s

Code:
...#define _timer_handler  timer_handler... .extern _timer_handler...vector77: .long _timer_handler...

 The timer_handler function isn't execute by processeur :smileysad:
Thank a bunch
Sorry for my bad english and my hopelessness :smileyhappy:



Message Edited by kedja on 2008-06-11 10:20 AM
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kedja
Contributor I
Ok sorry i have find some source references :smileywink: which was helpful.
But i have some error that i don't explain....


Code:
#ifndef __TIMER_H__#define __TIMER_H__/* FUNCTION: GPTA_Timer_Init() * * Initialise and enable General Purpose Timer A0 to work like * a PIT. * * PARAM2: Prescaler value - sets the tick frequency to *     (system clock/2) divided by 2^PCSR * * PARAM3: Modulo counter - sets the mumber of ticks per interrupt * * PARAM4: Interrupt handler * * RETURNS: none */#include "MCF52235.h"#define ADDRESS   uint32voidGPTA_Timer_Init(uint8 PCSR, uint16 PMR, void (*handler)(void)){ // At 64MHz: // PCSR = 5 gives a tick per uS // PMR = 1000 gives an interrupt every 1ms  uint8 ipl = MCF_INTC_ICR_IL(2)    | MCF_INTC_ICR_IP(0); // Disable timer A MCF_GPTA_GPTSCR1 = 0; // Set up interrupt handler mcf52235_interrupt_init(44, ipl, handler); //  /!\Error 2/!\ // Set modulo count // (= number of ticks per interrupt) MCF_GPTA_GPTC0 = PMR; // Tick frequency = (system clock/2) divided by 2^PCSR MCF_GPTA_GPTSCR2  = (uint8)(MCF_GPTA_GPTSCR2_PR(PCSR)); MCF_GPTA_GPTIOS = MCF_GPTA_GPTIOS_IOS0; MCF_GPTA_GPTIE = MCF_GPTA_GPTIE_CI0; MCF_GPTA_GPTFLG1 = MCF_GPTA_GPTFLG1_CF0; MCF_GPTA_GPTFLG2 = MCF_GPTA_GPTFLG2_TOF;  // Enable timer A MCF_GPTA_GPTSCR1= 0x80;      }/* FUNCTION: mcf52235_interrupt_init() * * Initialise an interrupt handler for an interrupt source * for INTC0. If the handler is a NULL pointer, then mask * this interrupt. * * PARAM1: Interrupt source (1..62) * * PARAM2: Interrupt level and priority * * PARAM3: Interrupt handler * * RETURNS: none */voidmcf52235_interrupt_init(uint8 source, uint8 ipl, void (*handler)(void)){     //  /!\Error 1/!\ // Only for user defined vectors in INTC0 if ((source > 0) && (source < 63)) {  // Interrupts should be disabled to avoid vector problems  // and to ensure that a spurious interrupt exception can't  // be generated.  uint8 sysint =(uint8) asm_set_ipl(7);  if (handler)  {   // Set interrupt priority level   MCF_INTC0_ICR(source) =(uint8)(ipl & 0x3F);   // Set vector   mcf5xxx_set_handler(source+64, (ADDRESS)handler);   // Clear mask for this handler   if (source < 32)    MCF_INTC0_IMRL &= ~(MCF_INTC_IMRL_INT(source)          | MCF_INTC_IMRL_MASKALL);   else   {    MCF_INTC0_IMRL &= ~(MCF_INTC_IMRL_MASKALL);    MCF_INTC0_IMRH &= ~(MCF_INTC_IMRH_INT(source));   }  }  else  {   // Set vector   mcf5xxx_set_handler(source+64, (ADDRESS)handler);   // Set mask for this handler   if (source < 32)   {    MCF_INTC0_IMRL |= MCF_INTC_IMRL_INT(source);   }   else   {    MCF_INTC0_IMRH |= MCF_INTC_IMRH_INT(source);   }  }  // As you were...  asm_set_ipl(sysint); }}/********************************************************************/#endif


 Error generated:

       Error1: identifier 'mcf2235_interrupt_init(...)' redeclared as 'void(unsigned char, unsigned char, void (*)())'
       timer.h line 67 {

       Error2: identifier 'mcf2235_interrupt_init(...)' was originally declared as 'int(...)'
       timer line 34 mcf52235_interrupt_init(44, ipl, handler);

All support is welcome, thanks a bunch
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kedja
Contributor I
P.S: I use a ColdFire MCF52235RM and CodeWarrior 7.0. And sorry for tripple post :smileyindifferent:


Message Edited by kedja on 2008-06-12 10:21 AM
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fferraro
Contributor II

possibly another point of the program or in file.h is declared :

int mcf52235_interrupt_init ( ..... )

while here is declared: 

void mcf52235_interrupt_init ( ..... )

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kedja
Contributor I
Unfortunately isn't that...
Nowhere else i use or defined this function :s
Nice try :smileywink:
thanks
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fferraro
Contributor II

has this function the prototype?

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kedja
Contributor I
No, was that...:smileyvery-happy: I'm so idiot :smileysad:
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kedja
Contributor I
Why when i change the modulo count, the frequency don't change?
I blink a LED and i check with an oscilloscope and i get these result:

for PCSR= 8
and PMR=0 :
    Time LED on=2ms
    Time LED off=11ms

for PCSR=8
and PMR=65535 :
    Time LED on=2ms
    Time LED off=11ms
Is it normal?
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kedja
Contributor I
Up! :smileyhappy:
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kedja
Contributor I
10 days and always no support :smileysad:
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CrasyCat
Specialist III
Hello
 
Forum is probably not the most appropriate place to ask for timely answers to support questions.
 
If you need someone to look at your question I would recommend you to submit a service request for that.

Click here to submit a service request.

Make sure to attach a reproducible project and installed product information to the service request.
To generate the required information:
- Start CodeWarrior
- Open the project
- Select "Help" -> "Pack and Go" and follow instructions on the screen.

Attach the generated .zip file to the SR.
 
CrasyCat
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kedja
Contributor I
ok thanks, i've post on the  68K/ColdFire® Microprocessors
and i have support.
thanks a bunch
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