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sharandac / My-TTGO-Watch

A GUI named hedge for smartwatch like devices based on ESP32. Currently support for T-Watch2020 (V1,V2,V3), T-Watch2021, M5Paper, M5Core2 and native Linux support for testing.
GNU General Public License v2.0
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i2s.c source code request #289

Closed valioiv closed 3 years ago

valioiv commented 3 years ago

I'm conducting experiments with the speakers of Watch v3 and got the following kernel panic when using i2s_write() in a separate task. I want to see what is happening on line 1330 in i2s.c but don't know where to get the exact source code of the drivers like i2s.c. @sharandac , can you help on that?

Guru Meditation Error: Core  0 panic'ed (LoadProhibited). Exception was unhandled.
Core 0 register dump:
PC      : 0x40246bc5  PS      : 0x00060830  A0      : 0x800d5d28  A1      : 0x3ffdbb50  
A2      : 0x00000001  A3      : 0x3ffc5530  A4      : 0x00000500  A5      : 0x3ffdbb8c  
A6      : 0xffffffff  A7      : 0x00000000  A8      : 0x800d6983  A9      : 0x3ffdbb30  
A10     : 0x00000000  A11     : 0x00000000  A12     : 0x00000000  A13     : 0x00006400  
A14     : 0x00000000  A15     : 0x00000000  SAR     : 0x00000012  EXCCAUSE: 0x0000001c  
EXCVADDR: 0x00000018  LBEG    : 0x4000c2e0  LEND    : 0x4000c2f6  LCOUNT  : 0x00000000  

ELF file SHA256: 0000000000000000

Backtrace: 0x40246bc5:0x3ffdbb50 0x400d5d25:0x3ffdbb80 0x40094406:0x3ffdbbb0
  #0  0x40246bc5:0x3ffdbb50 in i2s_write at /home/sharan/temp/esp32-arduino-lib-builder/esp-idf/components/driver/i2s.c:1330
  #1  0x400d5d25:0x3ffdbb80 in mictest_app_data_to_codec_task(void*) at src/app/mictest_app/mictest_app_main.cpp:864
  #2  0x40094406:0x3ffdbbb0 in vPortTaskWrapper at /home/sharan/temp/esp32-arduino-lib-builder/esp-idf/components/freertos/port.c:355 (discriminator 1)

Rebooting...
void-spark commented 3 years ago

ESP IDF source? https://github.com/espressif/esp-idf/blob/master/components/driver/i2s.c

valioiv commented 3 years ago

ESP IDF source? https://github.com/espressif/esp-idf/blob/master/components/driver/i2s.c

@void-spark , nope... As you can see there is no line 1330 in the HEAD of esp-idf. I've checked even older versions of esp-idf 4.x, 3.x and there is no matching line 1330 in i2s_write(). Probably @sharandac uses some custom tuned sources built by himself and would be great to share them if possible.

void-spark commented 3 years ago

Ah, you want the source to https://github.com/sharandac/arduino-esp32-hedge/tree/main/tools/sdk/lib :) Readme mentions:

Arduino core with some extra things

Doesn't sound like he changed the i2s files, but who knows :) My feeling is he used https://github.com/espressif/esp32-arduino-lib-builder and only modified the sdkconfig.

Could it be the line number is after the preprocessor worked or so?

void-spark commented 3 years ago

Hmm, actually, https://github.com/espressif/esp32-arduino-lib-builder would use release/v3.3 branch around the time that https://github.com/sharandac/arduino-esp32-hedge was created. Problem is that release/v3.3 changes all the time, as they merge bug fixes into it. Around that time would be: https://github.com/espressif/esp-idf/blob/33ad4b6f84d0a232a48f749fcfc2aecc79804d7e/components/driver/i2s.c On that commit the version is 3.3.4 (it's not the 3.3.4 tag, just what they have in the makefile), which does match ​https://github.com/sharandac/arduino-esp32-hedge/blob/main/tools/sdk/include/esp32/esp_idf_version.h That version does at least have a line 1330, but it doesn't match the method from the stack trace, so dunno :)

sharandac commented 3 years ago

The Arduino core was built without any intervention in the sources. Only the build options were adapted. The error also looks more like a wrong use of the libraries. Maybe a look into the sources from you will help. And it would be interesting to know if you have deactivated the sound drivers? Otherwise they will interfere with each other.