Search found 6 matches

by sshydlovskyi
Fri Sep 27, 2019 7:10 pm
Forum: General Discussion
Topic: How to profile ESP32 application performance?
Replies: 2
Views: 372

How to profile ESP32 application performance?

Hi! Currently, we use ESP32-LyraT v4.3 for our project. There's a configuration option, CONFIG_FREERTOS_GENERATE_RUN_TIME_STATS, that can print some performance information, but it only goes to big tasks, like main and idle. Is there any option to get at least that information for separate functions...
by sshydlovskyi
Tue Sep 24, 2019 12:30 pm
Forum: ESP32 IDF
Topic: How to configure LyraT v. 4.3 board to sample audio data from AUX input?
Replies: 2
Views: 238

Re: How to configure LyraT v. 4.3 board to sample audio data from AUX input?

Hi and thanks for the reply! Currently, it seems, I use only ADC/DAC connection plus some third-party resampler library. For now, I can to sample data from ADC and send it through resampler to DAC, but the sound is just awful. I think this is due to the fact that input and output I2S buses can be se...
by sshydlovskyi
Fri Sep 06, 2019 8:33 am
Forum: ESP32 IDF
Topic: How to configure LyraT v. 4.3 board to sample audio data from AUX input?
Replies: 2
Views: 238

How to configure LyraT v. 4.3 board to sample audio data from AUX input?

Greetings! I'm trying to get some audio data from ADC through AUX input and save into wave file. To start with something, I have compiled and flashed i2s_adc_dac example onto the board. It runs but debug prints shows constant value (142 mV) while I'm playing some music from the source connected to t...
by sshydlovskyi
Mon Sep 02, 2019 10:18 am
Forum: ESP32 ADF
Topic: How to incorporate third-party source code into ADF pipeline?
Replies: 1
Views: 356

How to incorporate third-party source code into ADF pipeline?

My greetings, everybody! Currently, I'm trying to add audio resampling library into ADF. As I can see, for standard elements in the pipeline, all you need is to declare input/processing/output, connect them into pipeline and start the loop. But I need to get audio samples from AUX input, resample an...
by sshydlovskyi
Thu Aug 15, 2019 11:05 am
Forum: ESP32 IDF
Topic: ESP-IDF sd_card example can't mount SD card
Replies: 1
Views: 189

Re: ESP-IDF sd_card example can't mount SD card

Answering my own question, I would like to describe the way to make sd_card example work properly. After checking the documentation for ESP32-LyraT v. 4.3 board I have found that DIP switches block affects the way SD card is used. In my case, all the switches are turned off, except #7 that is on to ...
by sshydlovskyi
Wed Aug 14, 2019 9:20 am
Forum: ESP32 IDF
Topic: ESP-IDF sd_card example can't mount SD card
Replies: 1
Views: 189

ESP-IDF sd_card example can't mount SD card

Hi! Recently I have tried to access SD card for my ongoing project. I'm using ESP32-LyraT board, version 4.3. The build process itself runs fine and the image can be uploaded without issues. However, when the app starts, I'm getting an error message like this: "Failed to mount filesystem. If you wan...

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