Hello everybody,
I hope you all doing fine during the covid-19 time!
Does anyone have and can share a simple library for the Wavelet Packet Transformation (WPT) ?! As far as I know the DSP library of ESP-IDF does not include the WPT.
Thank you !
Best regards and stay health !
opcode_x64
Search found 40 matches
- Sat Feb 13, 2021 7:45 pm
- Forum: ESP-IDF
- Topic: Wavelet Packet Transformation ?!
- Replies: 0
- Views: 95
- Sat Sep 05, 2020 9:18 pm
- Forum: ESP-IDF
- Topic: (solved) connecting to Wifi using static IP
- Replies: 5
- Views: 1166
Re: conntecting to Wifi using static IP
Hey, without seeing any code: As far as I know and understand the WiFi driver is independent from the TCP/IP layer, meaning connecting to an access point has nothing to do with TCP/IP at first. After your connection is established, then your access point is assigning your device (ESP32) an IP addres...
- Sat Sep 05, 2020 9:08 pm
- Forum: ESP-IDF
- Topic: SPI Rx abort
- Replies: 1
- Views: 421
Re: SPI Rx abort
Hello,
can you maybe tell more about your motivation for doing that ? Maybe other readers can find an alternative solution for you ?
Best regards,
opcode_x64
can you maybe tell more about your motivation for doing that ? Maybe other readers can find an alternative solution for you ?
Best regards,
opcode_x64
- Tue Sep 01, 2020 8:15 pm
- Forum: ESP-IDF
- Topic: NEW ESP-IDF VERSION BUG ? -> Assembly File cannot be compiled
- Replies: 1
- Views: 501
- Fri Aug 28, 2020 3:31 pm
- Forum: ESP-IDF
- Topic: NEW ESP-IDF VERSION BUG ? -> Assembly File cannot be compiled
- Replies: 1
- Views: 501
NEW ESP-IDF VERSION BUG ? -> Assembly File cannot be compiled
Hello everybody, I am trying to implement a high level interrupt in the new esp-idf version. To make sure, that error messages are not coming from my code, I used the example template in esp32 dcouments: .section .iram1,"ax" .global xt_highint5 .type xt_highint5,@function .align 4 xt_highint5: rsr a...
- Tue Aug 25, 2020 6:01 pm
- Forum: ESP-IDF
- Topic: Fast SPI communication with external ADC
- Replies: 7
- Views: 2290
Re: Fast SPI communication with external ADC
Hello bienvenu, at first I want to apologize for replying so late... due to other things at work I had no time to continue on that topic. Secondly I want to thank you very much for providing this information ! It is possible to share a minimal example code which I can study in more detail ? Maybe a ...
- Thu Jun 11, 2020 10:37 am
- Forum: ESP-IDF
- Topic: Fast SPI communication with external ADC
- Replies: 7
- Views: 2290
Re: Fast SPI communication with external ADC
Hello PeterR, First, thank you for your quick reply ! I also believe, that hardware only solution is not possible, but I wanted to ask about that before burying the idea :-) Like you mentioned, on core1 only the sampling process is executed, and on core0 all other things are executed (sending data o...
- Thu Jun 11, 2020 9:10 am
- Forum: ESP-IDF
- Topic: Fast SPI communication with external ADC
- Replies: 7
- Views: 2290
Fast SPI communication with external ADC
Hello everbody, Firstly, I hope you all are good within the Covid-19 time... I want to read out an external analog digital converter (adc) with an esp32. The communication between esp32 and the adc is done by SPI. The adc uses a digital output signal called DRDY to signalize when a sample is ready t...
- Thu Apr 23, 2020 4:54 pm
- Forum: ESP-IDF
- Topic: Synchronized Variable between Task and Interrupt Routine
- Replies: 0
- Views: 1145
Synchronized Variable between Task and Interrupt Routine
Hello community, I am realy feeling a little guilty for my increased posts in the last time, but I would really not disturb you if not needed... For the sake of understanding and to help other users in making this issue/question independent of my other posts, I decided to make start a new post with ...
- Wed Apr 22, 2020 9:36 pm
- Forum: ESP-IDF
- Topic: How to call C function from assembly ?
- Replies: 2
- Views: 922
Re: How to call C function from assembly ?
Hey ESP_Sprite, thanks for your help :) . Actually I want to call a function in C which uses with Inline Assembler the s32c1i function for lock and unlock operation of synchronized variables between the high level interrupt on core1 (Producer) and a consumer Task on core0. The C functions for lock a...