Search found 7 matches

by Malishev
Wed Aug 07, 2019 6:01 pm
Forum: General Discussion
Topic: DPORT access workaround and high interrupts.
Replies: 5
Views: 644

Re: DPORT access workaround and high interrupts.

Thank you! It is very flexible and nice solution.
by Malishev
Mon Jun 24, 2019 1:55 pm
Forum: General Discussion
Topic: DPORT access workaround and high interrupts.
Replies: 5
Views: 644

Re: DPORT access workaround and high interrupts.

Hi! Thank you for looking into this. Disable all not-nmi intrrupts in the workaround looks resonable. I hope the fix will not disable high interrupts in portENTER_CRITICAL, cause this will make high ints much less usefull. I wounder if dport access is used at all in the post initialization stage. It...
by Malishev
Thu Jun 13, 2019 2:29 pm
Forum: General Discussion
Topic: DPORT access workaround and high interrupts.
Replies: 5
Views: 644

Re: DPORT access workaround and high interrupts.

Actually interrupt handler for interrupt with level > 4 will break both workarounds. APB register preread workaround do not work, cause it only disable level 3 or lower ints. Stalling other cpu workaround also do not actually stall cpu if 4 lev int arrive. So far I got no other responses, so I would...
by Malishev
Thu Jun 13, 2019 4:16 am
Forum: General Discussion
Topic: DPORT access workaround and high interrupts.
Replies: 5
Views: 644

DPORT access workaround and high interrupts.

Hi!
Is it safe to access peripheral registers from high interrupt handler? I ask, cause this interrupts is not disabled via freertos macro, so esp-idf dport access workaround do not work in this case.
by Malishev
Tue May 21, 2019 7:07 am
Forum: General Discussion
Topic: New Chip ESP32-S2
Replies: 42
Views: 9035

Re: New Chip ESP32-S2

Is this will replace good old existing esp32? Looks like new chip is step back in all areas except cost and usb. 3 uart was already too low for general purpose mcu.
by Malishev
Mon Apr 22, 2019 9:54 am
Forum: General Discussion
Topic: ESP32 cache miss handler
Replies: 0
Views: 228

ESP32 cache miss handler

I am trying to create simple tool what gather stats about large program. This stats could be used to decide which functions should be placed in the iram.
I wounder do exist some method to catch and record flash cache miss event?
by Malishev
Tue Mar 05, 2019 7:39 am
Forum: General Discussion
Topic: Is it possible to do profiling (gprof) on ESP32?
Replies: 5
Views: 2122

Re: Is it possible to do profiling (gprof) on ESP32?

Hi. Any update on this? Is the gprof finally supported?

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