No AC101 detected (i2c driver not installed?)

[CaseyNolte22]

Hey,

After spending the time getting this to compile and flash, I'm getting a "No AC101 detected" message in the serial monitor. (I also see "i2c driver not installed" but if my googling is correct this is a non-issue.)

I'm using this board which should have a AC101 according to your docs, I've spent awhile trying to confirm but I can not find the relevant documentation.

Does anyone have any guidance on a solution? Serial output below.

I (5250) example_connect: Connected to example_connect: sta
I (5260) example_connect: - IPv4 address: 192.168.1.234
I (5260) example_connect: - IPv6 address: fe80:0000:0000:0000:a6e5:7cff:fee8:af78, type: ESP_IP6_ADDR_IS_LINK_LOCAL
I (5270) cspot: Connected to AP, start spotify receiver
W (5280) AC101: No AC101 detected
E (5280) i2c: i2c_master_cmd_begin(1394): i2c driver not installed
E (5290) i2c: i2c_master_cmd_begin(1394): i2c driver not installed
E (5300) i2c: i2c_master_cmd_begin(1394): i2c driver not installed
E (5300) i2c: i2c_master_cmd_begin(1394): i2c driver not installed

...
...

D MercuryManager.cpp:213: Received packet with code 178 of length 65
D AudioChunkManager.cpp:96: ID: 2: finalize chunk!
D AudioChunkManager.cpp:19: Chunk requested 3
D ChunkedAudioStream.cpp:87: --- Loaded file
Guru Meditation Error: Core  1 panic'ed (LoadProhibited). Exception was unhandled.

Core  1 register dump:
PC      : 0x40106f0e  PS      : 0x00060c30  A0      : 0x800f67d0  A1      : 0x3ffde9a0
0x40106f0e: i2s_write at C:/Espressif/frameworks/esp-idf-v4.4/components/driver/i2s.c:2006 (discriminator 2)

A2      : 0x00000000  A3      : 0x3f8127d8  A4      : 0x000001c8  A5      : 0x3ffde9e0
A6      : 0xffffffff  A7      : 0x3ffc43e8  A8      : 0x00000000  A9      : 0x3ffde950
A10     : 0x00000001  A11     : 0x3ffde9b4  A12     : 0x00000000  A13     : 0x3ffb357c
A14     : 0x3ffb3528  A15     : 0x00000001  SAR     : 0x00000000  EXCCAUSE: 0x0000001c
EXCVADDR: 0x00000018  LBEG    : 0x00000000  LEND    : 0x00000000  LCOUNT  : 0x00000000


Backtrace:0x40106f0b:0x3ffde9a00x400f67cd:0x3ffde9e0
0x40106f0b: i2s_write at C:/Espressif/frameworks/esp-idf-v4.4/components/driver/i2s.c:2006 (discriminator 2)

0x400f67cd: i2sFeed(void*) at C:/Espressif/frameworks/esp-idf-v4.4/projects/cspot/cspot/bell/src/sinks/esp/BufferedAudioSink.cpp:20





ELF file SHA256: 8fd06f88f5e348ec

Rebooting...

[HeikoGr]

The newer ai thinker boards are having ES8388 as DAC chips. What board version do you have (printed on the front) and what ESP32-A2S Version do you have? Printed on the back (of esp32, under the printed antenna)

[CaseyNolte22]

The version is "V2.2 A149" and the only text printed on the back is "2974". I'll try switching the config to ES8388 tonight.

Building fails with that config, is it because there is no ES8388 in these definitions?

// Config sink
#define ES8388 // INTERNAL, AC101, ES8018, ES8388, PCM5102
#define QUALITY     160      // 320, 160, 96
#define DEVICE_NAME "CSpot2"

#ifdef INTERNAL
#include <InternalAudioSink.h>
#endif
#ifdef AC101
#include <AC101AudioSink.h>
#endif
#ifdef ES8018
#include <ES9018AudioSink.h>
#endif
#ifdef PCM5102
#include <PCM5102AudioSink.h>
#endif

[HeikoGr]

Can confirm - 2974 has ES8388 inside. You may need an older cspot version - i have the same promblems while compiling.

[CaseyNolte22]

I apologize I'm not well versed enough on using git/github or contributing to projects to do a pull request, but I got the current cspot version to work with the ES8388 with a couple simple additions. It works decent, except you must turn the Spotify volume extremely low or else there is insane clipping. I'm not knowledgeable enough to find a fix for that.

It looks feelfreelinux deleted the ES8388 code necessary in .../targets/esp32/main/main.cpp in: 027a52f.

Here is the main.cpp I added to get it to work. Again sorry I can't do it the proper way.
main.zip

[HeikoGr]

i think @anabolyc solved the issue too in his PR #109 , so i won't make another PR out of your edit.

can you tell me if you used lineout or the headphone jack? Because i have no audio on lineout and wasn't able to test the headphone jack yesterday

[CaseyNolte22]

Headphone jack, I did not test lineout, and don't have the right cables to test it.