Search found 20 matches

by bbulkow
Tue Sep 29, 2020 9:59 pm
Forum: ESP-IDF
Topic: Amount of jitter on LEVEL3 interrupt?
Replies: 7
Views: 1521

Re: Amount of jitter on LEVEL3 interrupt?

Thanks for the response. It turned out that a good solution was to use the RMT mem_blocks parameter to increase the amount of buffering available to the system. Since that worked I did not go back and attempt to play with the wifi priority. Now that I see your report and the proper breadcrumb to try...
by bbulkow
Tue Sep 15, 2020 6:30 pm
Forum: Report Bugs
Topic: spi peripheral doesn't work if MISO pin set to -1
Replies: 2
Views: 1991

Re: spi peripheral doesn't work if MISO pin set to -1

I have the same question. Wonder if a solution was ever offered.
by bbulkow
Tue Sep 15, 2020 6:21 pm
Forum: ESP-IDF
Topic: what is the unit of rssi?
Replies: 3
Views: 2924

Re: what is the unit of rssi?

While the wikipedia article is painfully correct, https://en.wikipedia.org/wiki/Received_signal_strength_indication All wifi chips support RSSI, and it's in Dbm, because ( as stated ) it's power and the most common unit of power is Dbm. Be very cautious about reading too much into RSSI, but not over...
by bbulkow
Tue Sep 15, 2020 6:08 pm
Forum: ESP-IDF
Topic: Amount of jitter on LEVEL3 interrupt?
Replies: 7
Views: 1521

Re: Amount of jitter on LEVEL3 interrupt?

As an alternative, can you just run your timing-sensitive stuff on the other core? Thanks for taking the time to answer. Since there are various Wifi interrupts and server tasks, and no promise that I've read from ESP-IDF regarding which core is used for what in the ESP-IDF system (other than the g...
by bbulkow
Sat Sep 12, 2020 5:32 pm
Forum: ESP-IDF
Topic: Amount of jitter on LEVEL3 interrupt?
Replies: 7
Views: 1521

Re: Amount of jitter on LEVEL3 interrupt?

This issue is very serious, and I would hope there could be some attention. Let me ask the simple question: how do I lower the priority of the wifi system to LEVEL 2 so to make the LEVEL 3 interrupts more responsive? Is wifi at a particular interrupt in all versions? Is there pseudo code for finding...
by bbulkow
Sat Sep 05, 2020 12:29 am
Forum: ESP-IDF
Topic: Amount of jitter on LEVEL3 interrupt?
Replies: 7
Views: 1521

Re: Amount of jitter on LEVEL3 interrupt?

I have reworked my code to use MEM_BLOCK_NUM in RMT, and have removed the LED glitches. This is because the measured jitter was about 50us, and by changing MEM_BLOCK_NUM to 2, I could absorb over 120us of jitter, so it works. I still believe that since the ESP-IDF sample code glitches very badly wit...
by bbulkow
Fri Sep 04, 2020 5:25 pm
Forum: ESP-IDF
Topic: How to update the ESP-IDF in windows
Replies: 4
Views: 1188

Re: How to update the ESP-IDF in windows

In some cases, I am only able to successfully update by deleting the esp-idf directory, re-cloning, and running the "install.sh" ( in your case install.bat, I use WSL on windows and follow the linux instructions, it runs very well ). I also usually must remove the build directory of my project to fo...
by bbulkow
Fri Sep 04, 2020 9:48 am
Forum: ESP-IDF
Topic: Amount of jitter on LEVEL3 interrupt?
Replies: 7
Views: 1521

Amount of jitter on LEVEL3 interrupt?

Hi, I'm doing a fairly standard thing of using the RMT interface to control LEDs. You have a simple test program that does the same, there are multiple libraries. However, I've also got a very simple web server, and accepting TCP requests. That code is also part of your standard distribution, and no...
by bbulkow
Fri Sep 04, 2020 9:19 am
Forum: ESP-IDF
Topic: (solved) AP Scan before Wifi Connects?
Replies: 2
Views: 651

Re: AP Scan before Wifi Connects?

I built the following component which allows you to specify multiple networks. It'll scan, pick the network with the highest signal, and attach first. If the connection drops, it'll rescan. This is the same interface used by the WifiMulti arduino interface. Perhaps it'll give you a hint as to where ...
by bbulkow
Mon Aug 10, 2020 4:39 am
Forum: IDEs for ESP-IDF
Topic: Experience with Visual Studio using Windows Subsystem for Linux (WSL)?
Replies: 2
Views: 3515

Re: Experience with Visual Studio using Windows Subsystem for Linux (WSL)?

Hi, I have been using WSL 1 as my primary compile environment for ESP-IDF for many months now and it works great. I belive you should publish a guide for using it with the plugin, in remote mode just like you said. For many of us, installing any software in the "command prompt" ( aka DOS ) is just v...

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