Hi Sam, You need to add the timer.h file to the list of files to be installed: https://git.rtems.org/rtems/tree/spec/build/bsps/microblaze/microblaze_fpga/obj.yml#n14 Alan From: Sam Price I pushed my changes to rtems source https://github.com/RTEMS/rtems/compare/master...thesamprice:rtems:timer_debug and setup a hello world an example project to test with https://github.com/thesamprice/rtems_mb_timer/blob/main/hello.c However im getting the following error. rtems_mb_timer/hello.c:8:10: fatal error: bsp/timer.h: No such file or directory 8 | #include <bsp/timer.h> | ^~~~~~~~~~~~~ Is the correct approach to just put all bsp specific calls in bsp.h? On Sat, Nov 5, 2022 at 10:04 PM Sam Price <thesampr...@gmail.com> wrote: > > The current microblaze design only has a single timer. > > I want to use the 2nd timer on the microblaze to run some low level tasks. > > Wondering if someone could see if i'm on the right track. > > > Regarding the timer from the Xilinx api api > > """The interrupt service routine reads the timer control/status > registers to determine the source of the interrupt.""" > > Also there is a interrupt controller on microblaze that has a single > jump register. > > > So the underlying logic is interrupt occurs, 32bit interrupt register > is checked for what bits are set determining what interrupts have > occured. > > > if bit 0 is set then it is a clock interrupt. > > > Then 2 clock register need checked for what timer caused the interrupt. > > > Current RTEMS implementation only uses 1 of the timers. > > > > > > I added static ISR callbacks for the system and user callback at the > top of the mb clock.c file. > > static rtems_interrupt_handler mblaze_clock_isr = 0x0; > > static rtems_interrupt_handler mblaze_user_isr = 0x0; > > > > I added a callback that checks both registers and calls the > appropriate callback. > > > > static void microblaze_clock_handler( void * data){ > > volatile Microblaze_Timer *timer = _Microblaze_Timer; > > if ( ( timer->tcsr0 & MICROBLAZE_TIMER_TCSR0_T0INT ) == 0 ) > > { > > if(mblaze_clock_isr != 0x0){ > > mblaze_clock_isr(data); > > } > > } > > if ( ( timer->tcsr1 & MICROBLAZE_TIMER_TCSR0_T0INT ) == 0 ) > > { > > if(mblaze_user_isr != 0x0){ > > mblaze_user_isr(data); > > /* Clear the interrupt */ > > timer->tcsr1 |= MICROBLAZE_TIMER_TCSR0_T0INT; > > } > > } > > } > > > > > > I updated the ISR register to store the system clock, and replace the > isr callback with mine. > > > > static void microblaze_clock_handler_install( rtems_interrupt_handler isr ) > > { > > rtems_status_code sc = RTEMS_SUCCESSFUL; > > mblaze_clock_isr = isr; <- Store the system ISR > > sc = rtems_interrupt_handler_install( > > 0, > > "Clock", > > RTEMS_INTERRUPT_UNIQUE, > > microblaze_clock_handler, <- Changed from ISR to my new handler. > > NULL > > ); > > > > if ( sc != RTEMS_SUCCESSFUL ) { > > bsp_fatal( MICROBLAZE_FATAL_CLOCK_IRQ_INSTALL ); > > } > > } > > > > To the microblaze bsp.h > > > im adding my callback functions to register the users clock function. > > void microblaze_user_clock_handler_install(rtems_interrupt_handler isr); > > > And the appropriate non static function to the mb clock.c file > > void microblaze_user_clock_handler_install(rtems_interrupt_handler isr){ > mblaze_user_isr = isr; > } > > Anyhow about to compile and see if it works. -- Sincerely, Sam Price _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel |
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