AW: [ECOS] help needed: interrupt + semaphore

[Edelmann Thomas <thomas dot edelmann at siemens dot com>]

Hi,

thanks for your help! 

But this doesn't solve the problem. The ISR is always called, but then
nothing happens, no DSR, no INTThread.

Knows someone something else?

bye, Thomas

> -----Ursprüngliche Nachricht-----
> Von: Robert Cragie [mailto:rcc@jennic.com]
> Gesendet: Dienstag, 20. August 2002 12:07
> An: Edelmann Thomas; ecos-discuss@sources.redhat.com
> Cc: thomas.edelmann@gmx.de
> Betreff: RE: [ECOS] help needed: interrupt + semaphore
> 
> 
> I do it like this and it works for me:
> 
> static cyg_uint32 intE1ISR(cyg_vector_t vector, cyg_addrword_t data)
> {
> 	cyg_interrupt_mask(vector);
> 
> 	cyg_interrupt_acknowledge(vector);
> 
> 	return CYG_ISR_CALL_DSR;
> }
> 
> static void intDSR(cyg_vector_t vector, cyg_ucount32 count, 
> cyg_addrword_t
> data)
> {
>     cyg_semaphore_post(&semEINT1);
> 
>     cyg_interrupt_unmask(vector);
> }
> 
> I also commented that cyg_interrupt_acknowledge() must be 
> called in the
> ISR - the docs. seem to say this must be done.
> 
> HTH
> 
> Robert Cragie, Design Engineer
> ________________________________________________________
> Jennic Ltd, Furnival Street, Sheffield, S1 4QT,  UK
> www.jennic.com Tel: +44 (0) 114 281 2655
> 
> > -----Original Message-----
> > From: ecos-discuss-owner@sources.redhat.com
> > [mailto:ecos-discuss-owner@sources.redhat.com]On Behalf Of Edelmann
> > Thomas
> > Sent: 20 August 2002 08:44
> > To: 'ecos-discuss@sources.redhat.com'
> > Cc: 'thomas.edelmann@gmx.de'
> > Subject: [ECOS] help needed: interrupt + semaphore
> >
> >
> > Hi,
> >
> > I need your help! I've attached a simplified copy of my System.
> > Only running
> > an Interrupthandler with a Semaphore.
> >
> > But it is not running. The Problem: If I receive an 
> external Interupt
> > (created by a FPGA) the ISR Routine is called, but nothing 
> else. WHY???
> >
> > What am I doing wrong???
> >
> > Thanks for your Help!
> >
> > bye,
> > Thomas
> >
> >
> > --- System.c ---
> >
> > #include <stdio.h>                      /* printf */
> > #include <stdlib.h>
> > #include <pkgconf/system.h>
> > #include <pkgconf/net.h>
> > #include <pkgconf/posix.h>
> > #include <pkgconf/kernel.h>
> > #include <fcntl.h>
> > #include <mqueue.h>
> > #include <cyg/kernel/kapi.h>            /* All the kernel
> > specific stuff */
> > #include <cyg/io/io.h>                  /* I/O functions */
> > #include <cyg/hal/hal_arch.h>           /*
> > CYGNUM_HAL_STACK_SIZE_TYPICAL */
> > #include <cyg/hal/hal_intr.h>
> > #include <cyg/hal/hal_edb7xxx.h>
> > #include <network.h>
> >
> > /* ============ */
> > /* === ecos === */
> >
> > /* DEFINES */
> >
> > #define NTHREADS 2
> > #define STACKSIZE ( CYGNUM_HAL_STACK_SIZE_TYPICAL)
> >
> > /* STATICS */
> >
> > static cyg_handle_t		thread[NTHREADS];
> > static cyg_thread			thread_obj[NTHREADS];
> > static char				stack[NTHREADS][STACKSIZE];
> >
> > static cyg_handle_t		hEInt1;
> > static cyg_interrupt		iEInt1;
> > static cyg_sem_t			semEINT1;
> >
> > static void intDSR(cyg_vector_t vector, cyg_ucount32 count, 
> cyg_addrword_t
> > data)
> > {
> > 	cyg_semaphore_post(&semEINT1);
> > }
> >
> > static cyg_uint32 intE1ISR(cyg_vector_t vector, cyg_addrword_t data)
> > {
> > 	cyg_interrupt_mask(CYGNUM_HAL_INTERRUPT_EINT1);
> >
> > 	return (CYG_ISR_HANDLED|CYG_ISR_CALL_DSR);  // Run the DSR
> > }
> >
> > void INTThread (CYG_ADDRESS data)
> > {
> > 	while (1)
> > 	{
> > 		cyg_semaphore_wait(&semEINT1);
> >
> > 		diag_printf("INTThread: IRT IRQ1: %.8lX NRT IRQ1:
> > %.8lX\n\n", IO_SP_IRQ1_IRT, IO_SP_IRQ1_NRT);
> >
> > 		cyg_interrupt_acknowledge(CYGNUM_HAL_INTERRUPT_EINT1);
> > 		cyg_interrupt_unmask(CYGNUM_HAL_INTERRUPT_EINT1);
> > 	}
> > }
> >
> > externC void
> > cyg_user_start( void )
> > {
> > 	cyg_semaphore_init(&semEINT1, 0);
> >
> > 	cyg_interrupt_create(CYGNUM_HAL_INTERRUPT_EINT1,
> > 		6,                     // Priority - unused
> > 		1,   //  Data item passed to interrupt handler
> > 		intE1ISR,
> > 		intDSR,
> > 		&hEInt1,
> > 		&iEInt1);
> >
> > 	cyg_interrupt_attach(hEInt1);
> > 	cyg_interrupt_acknowledge(CYGNUM_HAL_INTERRUPT_EINT1);
> >
> > 	// Interrupt Freigabe
> > 	cyg_interrupt_unmask(CYGNUM_HAL_INTERRUPT_EINT1);
> >
> > 	// Interrupts aktivieren
> > 	// external 1
> > 	*(volatile unsigned char *)INTMR1 |= 0x20;
> >
> > 	cyg_interrupt_enable();
> >
> > 	cyg_thread_create (5, INTThread, (cyg_addrword_t) 0, 
> "INTThread",
> > 		(void *)stack[5], STACKSIZE, &thread[5], 
> &thread_obj[5]);
> > 	cyg_thread_resume (thread[5]);
> >
> > //	cyg_scheduler_start();
> > }
> >
> > --- \System.c ---
> >
> > Mit freundlichen Grüßen
> > Thomas Edelmann
> >
> >
> >
> > --
> > Before posting, please read the FAQ: 
http://sources.redhat.com/fom/ecos
> and search the list archive: http://sources.redhat.com/ml/ecos-discuss
>
>

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