RE: Interrupt latency in RTEMS (Zedboard)

2018-03-27 Thread BRIARD Sebastien
Well, Thank you very much for these answers ! Sébastien. -Message d'origine- De : Chris Johns [mailto:chr...@rtems.org] Envoyé : mercredi 28 mars 2018 02:12 À : j...@rtems.org; BRIARD Sebastien Cc : users@rtems.org Objet : Re: Interrupt latency in RTEMS (Zedboard) On 28/03/2018

RE: Interrupt latency in RTEMS (Zedboard)

2018-03-27 Thread BRIARD Sebastien
Okay, I realized how I was confusing clock tick (for timekeeping) and interrupt latency and why the result were not the ones I expected. I still have one question, is there a macro to choose/impose the processor frequency ? -Message d'origine- De : BRIARD Sebastien Envoyé : mar

RE: Interrupt latency in RTEMS (Zedboard)

2018-03-27 Thread BRIARD Sebastien
S_INIT_TASKS_TABLE #define CONFIGURE_MAXIMUM_TASKS 1 #define CONFIGURE_MAXIMUM_TIMERS1 #define CONFIGURE_INIT #include -Message d'origine- De : Sebastian Huber [mailto:sebastian.hu...@embedded-brains.de] Envoyé : mardi 27 mars 2018 14:20 À : BRIARD Sebastien

RE: Interrupt latency in RTEMS (Zedboard)

2018-03-27 Thread BRIARD Sebastien
Good point. Thanks. Would you have any idea concerning my other question ? (why I get the same result for interrupt latency with different values of Tick per microsecond ) De : Rehab Massoud [mailto:rehab.mass...@gmail.com] Envoyé : mardi 27 mars 2018 13:57 À : BRIARD Sebastien Cc : rtems-us

RE: Interrupt latency in RTEMS (Zedboard)

2018-03-27 Thread BRIARD Sebastien
Yeah, hardware limits to 1.5ns if we take in account the max frequency of the cortex. (That was the more or less 1ns =) ) De : Rehab Massoud [mailto:rehab.mass...@gmail.com] Envoyé : mardi 27 mars 2018 13:49 À : BRIARD Sebastien; rtems-us...@rtems.org Objet : Re: Interrupt latency in RTEMS

Interrupt latency in RTEMS (Zedboard)

2018-03-27 Thread BRIARD Sebastien
De : BRIARD Sebastien Envoyé : mardi 27 mars 2018 11:42 À : 'users@rtems.org' Objet : Interrupt latency in RTEMS (Zedboard) Hi, I was trying to measure the interrupt latency in RTEMS with a Xilinx Zynq Zedboard (cortex A9). I modified the c file in classic_signal example to measu