Hi Mateusz,
Thanks very much for your help, I finally caught the problem by SystemView, I
found the low priority FOC main task interrupt high priority FOC control
pthread and the problem led to the failure to complete the control of this
cycle, I think that's what caused my problem, but i do
; CONFIG_SEGGER_RTT_BUFFER_SIZE_UP=2048
> CONFIG_SEGGER_RTT_BUFFER_SIZE_DOWN=32
> CONFIG_SEGGER_SYSVIEW_RTT_BUFFER_SIZE=2048
> CONFIG_SEGGER_SYSVIEW_RAM_BASE=0
>
> Best regard
> Zou
>
>
> -- Original --
> *From: * "raiden00pl";
&
Hi Mateusz,
Now i can use SystemView to monitor the create of task and thread, but there's
no time sequence diagram in Timeline of SystemView, and there's no ISR info in
event window of SystemView, maybe there's some issue of RTT config on my nuttx.
Thank you very much if you would like share
Hello Mateusz,
I have tried to remove USB CDCACM RX thread, and the problem is remains, so the
USB CDCACM RX thread do not related to the problem.
the latest measure result is as follows:
FOC control thread executed time 48~58us and sometimes 68us
FOC control thread execute period is 104~124us
005bd8
> 7 3 100 RR pthread --- Waiting Semaphore 002048
> 000732 35.7% pt-0x8019d71 0x20005bd8
> nsh>
>
> pt-0x8019d71 is a USB CDCACM RX thread
>
> Best regard
> Zou
>
> -- Original --
> *From: * "ra
Hello Mateusz,
Thanks for your help, I'm not proficient in using SystemView, but i will
analyze your cool results. I'm use count register value of timer12 to
measure the various execution times. I found in most normal cases, block time
of foc_dev_state_get is about 50~60us, and sporadic 80~11
Hello Nathan,
Thanks for your suggestion, is a good idea to use Zero Latency Interrupt, but
then I can't use the FOC driver by great works of Mateusz, I will check the
critical section of driver i used.
Best regard
Zou
-- Original --
From: "Nathan Hartman"ht
so serious ? BTW, ther execution time of single FOC
> control loop is 60~70us, and there's 5 custom task in my case:
>
> Is my configuration incorrect or the real-time performance of nuttx can
> not meet the requirements?
> Does anyone else have the same problem?
>
> Best r
eady been set to the highest 255, and i have enabled the
CONFIG_PRIORITY_INHERITANCE, why the FOC control threads was delayed so serious
? BTW, ther execution time of single FOC control loop is 60~70us, and there's 5
custom task in my case:
Is my configuration incorrect or the real-time p
hest 255, and i have enabled the
CONFIG_PRIORITY_INHERITANCE, why the FOC control threads was delayed so serious
? BTW, ther execution time of single FOC control loop is 60~70us, and there's 5
custom task in my case:
Is my configuration incorrect or the real-time performance of nuttx can not
meet the require
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