Ok i got it ! thanks a lot for the help jan !
Yaron . On Mon, Oct 23, 2017 at 6:02 PM, <jan.som...@dlr.de> wrote: > > > -----Original Message----- > > From: yaron o [mailto:jaron0...@gmail.com] > > Sent: Monday, October 23, 2017 4:17 PM > > To: Sommer, Jan > > Cc: users@rtems.org > > Subject: Re: interrupt example leon3 > > > > Ok thank you , > > > > i succeeded to implement the interrupt on leon 3 ,thats what i added if > some > > one want to update the rtems-irq.c in sample file and add also: > > ... > > ... > > #elif defined(LEON3) > > *(unsigned long *) (0x80000240) = 0xc; // for leon 3 > > *(unsigned long *) (0x80000208) = 0xc; // for leon 3 > > #endif > > ... > > ... > > in edition the printk instead of printf works for me either! > > > > > > but still something missing for me and if some have an enswre it will be > great , > > the question is why 0xc ? > > i cant find anything that relate to the 0x12 (rtems_vector_number in > > the rtems_interrupt_catch ). > > That's what I meant with the hint in my previous email. > If you set the interrupt mask register to 0xC you set the interrupt #2 and > #3. > In the gr712rc manual that would mean the APBUART and the interrupt for > the GPIO as described in table 2. > The interrupt ids used in RTEMS seem to be in accordance to the SparcV8 > standard (table 7-1), i.e. they start with 0x11 for interrupt level 1. > That's why if you want to capture interrupt #2 and #3 from the gr712rc > manual you have to pass the ids 0x12 and 0x13 respectively. > Interrupt ids from 0x00 to 0x10 are reserved for the standardized sparc > traps. > > > > > thanks again to all > > Yaron > > > > > > On Mon, Oct 23, 2017 at 12:29 PM, <jan.som...@dlr.de> wrote: > > Hi Yaron, > > > > > -----Original Message----- > > > From: users [mailto:users-boun...@rtems.org] On Behalf Of yaron o > > > Sent: Monday, October 23, 2017 10:21 AM > > > To: users@rtems.org > > > Subject: interrupt example leon3 > > > > > > Hello all > > > > > > I want to add a new interrupt in my program , i check the rtems sample > folder > > in > > > order to see how to add one ,i found the rtems-irq.c file and i did as > the file > > says > > > but im using a leon 3 and theirs it says: error Example not intended > for LEON3 > > > CPU. > > > my question's are: > > > firs how to call an interrupt in leon3 after i put it inside the ISR > table, (i know > > that > > > in some OS you just write asm {INT #} in order to invoke the > interrupt). > > > > > > > In rtems the low level interrupts are handled by the OS and forwarded to > the > > function you > > registered with rtems_interrupt_catch. > > > > > second i need some explain for the lines : > > > *(unsigned long *) (0x80000090) = 0xc; > > > > > > *(unsigned long *) (0x80000098) = 0xc; > > > > > > > Checking the processor manual of the Leon2 these appear to be the > registers of > > the interrupt controller (interrupt mask and interrupt force register). > > You might have to setup the interrupt controller of your Leon3 in a > similar > > manner for the example to work. > > > > > in code below because i don't quit understand it ( maybe it's invoke > the > > interrupt > > > but how does it relate to the handleExternalIrq) . > > > > > > > As far as I see it first registers the function handleExternalIrq to the > interrupts > > with id 0x12 and 0x13 using rtems_interrupt_catch. > > Then it enables those interrupts in the interrupt controller (write to > > 0x80000090). > > Finally it triggers the interrupts by writing to the interrupt force > register > > (0x80000098). > > The interrupt should occur, being noticed by rtems and the > handleExternalIrq- > > function should be called to handle the interrupt. > > I had some problems with calling printf from within ISRs. I would > replace it with > > printk just to be sure. > > > > One hint regarding the Leon3: In the gr712rc user manual the interrupt > numbers > > defined there are mapped in RTEMS to ids starting with 0x10 + irq#. > > Meaning e.g. the AHBSTAT interrupt (number #1) will have the id 0x11 in > RTEMS > > and so on. > > > > Cheers, > > > > Jan > > > > > i add the rtems-irq.c bellow" > > > ------------------------------------------------------------ > -------------- > > > #include <rtems.h> > > > /* configuration information */ > > > > > > #define CONFIGURE_INIT > > > > > > #include <bsp.h> /* for device driver prototypes */ > > > > > > rtems_task Init (rtems_task_argument argument); rtems_isr > handleExternalIrq > > > (rtems_vector_number vector); > > > > > > #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER > > > #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER > > > > > > #define CONFIGURE_MAXIMUM_TASKS 4 > > > > > > #define CONFIGURE_RTEMS_INIT_TASKS_TABLE > > > > > > #define CONFIGURE_EXTRA_TASK_STACKS (3 * > > > RTEMS_MINIMUM_STACK_SIZE) > > > > > > #include <rtems/confdefs.h> > > > > > > #include <stdlib.h> > > > #include <stdio.h> > > > > > > rtems_task > > > Init > > > ( > > > rtems_task_argument argument > > > ) > > > { > > > rtems_status_code status; > > > rtems_isr_entry old_handle; > > > > > > status = rtems_interrupt_catch (handleExternalIrq, 0x12, > &old_handle); > > > status = rtems_interrupt_catch (handleExternalIrq, 0x13, > &old_handle); > > > > > > #ifdef __erc32__ > > > *(unsigned long *) (0x1f8004c) = 0x7ff0; > > > *(unsigned long *) (0x1f800d0) = 0x80000; > > > *(unsigned long *) (0x1f80054) = 0x0c; > > > #elif defined(LEON2) > > > *(unsigned long *) (0x80000090) = 0xc; > > > *(unsigned long *) (0x80000098) = 0xc; > > > #elif defined(LEON3) #error Example > > > not intended for LEON3 CPU #endif > > > exit(0); > > > } > > > > > > rtems_isr > > > handleExternalIrq > > > ( > > > rtems_vector_number vector > > > ) > > > { > > > printf ("External interrupt received with vector 0x%x\n", vector); > } > > > > > > > > > ---------------------------------------------------------------- > > > > > > thanks a lot for the helpers ! > > > > > > Yaron . > > > > > > > > > > > > -- > > > signature- > > > > > 1.gif<https://lh4.googleusercontent.com/MAmpk4C_PMWbT3zd0qdOSQrjc8Z10 > > > rviGbNXOwcwHaQsEZMoMiIycSLYS_mSXnOqfEy2QkNLP1y-0gO- > > > 6yHBGUZLK1jtiiU6IpMMOJT-bAVizgbQcyOwKWpJ6DM5a1K9PnjXrkv8> > > > > > > > > > > -- > > > > > > > > > > > > > > Yaron Oz > > R&D Software developer > > > > Asher Space Research Institute > > Technion – Institute of Technology > > Technion City, Haifa 32000, Israel > > > > > > -- [image: signature-1.gif]
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