Search found 36 matches

by doglike
Thu Oct 22, 2020 9:56 am
Forum: ESP-IDF
Topic: Simple questions about SPIFFS wear levelling
Replies: 3
Views: 1002

Re: Simple questions about SPIFFS wear levelling

SPIFFS becomes corrupt very fast, if something unexpected happens (eg. power-off during access). It also becomes very slow at a filling level @ ~50%. I also spend days after days with this issues and testing around with SPIFFS and FATFS. For me the best solution was to migrate to LITTLEFS. https://w...
by doglike
Tue Oct 20, 2020 11:45 am
Forum: ESP-IDF
Topic: wifi task on core0 influences precessing speed of core1 tasks
Replies: 3
Views: 211

Re: wifi task on core0 influences precessing speed of core1 tasks

Hi,
thanks for your reply.
I read your post several times (hard to understand)...
Do you mean, that it could help to kick out all wifi related functions out of IRAM ?
Any idea, how I could realize this?
Thanks in advance!
by doglike
Wed Oct 14, 2020 1:53 pm
Forum: ESP-IDF
Topic: wifi task on core0 influences precessing speed of core1 tasks
Replies: 3
Views: 211

Re: wifi task on core0 influences processing speed of core1 tasks

Nobody an idea? :(
Or is this the normal behaviour and there is nothing to do...?
by doglike
Tue Oct 13, 2020 9:29 am
Forum: ESP-IDF
Topic: wifi task on core0 influences precessing speed of core1 tasks
Replies: 3
Views: 211

wifi task on core0 influences precessing speed of core1 tasks

Hi, I have following situation (see comment in code section). Anybody an idea, why the processing of a http-request from a client (wifi_handler on core0) influences the task processing speed on core1 ? I thought the cores are working independently... Or is SPI the problem here? I have to stop the wi...
by doglike
Tue Aug 11, 2020 8:05 am
Forum: ESP-IDF
Topic: Best possible code optimization for speed
Replies: 4
Views: 532

Re: Best possible code optimization for speed

O2 optimization level is also set. Then I've done almost everything that is possible... :)
Thanks!
by doglike
Mon Aug 10, 2020 12:56 pm
Forum: ESP-IDF
Topic: Best possible code optimization for speed
Replies: 4
Views: 532

Re: Best possible code optimization for speed

Hi, Task_1ms() is running with highest prio and there are also some other tasks on that core. So with the delay I free up cpu recource for the other tasks. I want speed up the calc time of Task_1ms(), so that the other tasks have as much cpu time as possible within this 1ms steps. The ipol_routine()...
by doglike
Fri Aug 07, 2020 2:19 pm
Forum: ESP-IDF
Topic: Best possible code optimization for speed
Replies: 4
Views: 532

Best possible code optimization for speed

Hi, I am running a quite complex math. interpolation routine within a cyclic 1ms Freertos task. I want to run that piece of code as fast as it is possible, because of the high-frequent 1ms calls What I did until now is to put the ipol_routine() to IRAM. Are there any other suggestions or possibiliti...
by doglike
Tue Jun 30, 2020 10:08 pm
Forum: ESP-IDF
Topic: Deactivate UART completely
Replies: 1
Views: 315

Deactivate UART completely

Hi, I would like to have my esp32 pcb manufactured and make the first flash myself. All other flashes only happen OTA. So for security reasons I want to deactivate UART completely with die firmware, that will be flashed @ first flash. Can you guys give me a hint, how I can do this? Thanks in advance...
by doglike
Tue Jun 16, 2020 7:39 am
Forum: General Discussion
Topic: CAN-Bus API multiple filter configuration
Replies: 6
Views: 3541

Re: CAN-Bus API multiple filter configuration

To be honest, after reading posts like this + the docs several time, I still didn't understand how to set the filter correctly :oops: I have this code snipped from an example with the comment, that this is a no-filter-config. void can_setRxFilter(void) { CAN_filter = { Single_Mode, 0, 0, 0, 0, 0xFF,...

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