Search found 5 matches

by Danie.
Mon Jan 27, 2020 11:43 pm
Forum: Hardware
Topic: PCM5100A DAC distortion on high(er) volume
Replies: 2
Views: 5304

Re: PCM5100A DAC distortion on high(er) volume

After a bit of research i was able to fix the problem.

Maybe someone is facing a similar issue.
The clue was to set the communication_format to I2S_COMM_FORMAT_I2S in the i2s config struct:

i2s_config_t i2s_config = {
.mode = I2S_MODE_MASTER | I2S_MODE_TX, // Only TX
.sample_rate = 44100 ...
by Danie.
Fri Jan 10, 2020 10:44 pm
Forum: Hardware
Topic: PCM5100A DAC distortion on high(er) volume
Replies: 2
Views: 5304

PCM5100A DAC distortion on high(er) volume

Hello,

i have a project which uses the PCM5100A as I2S Audio Codec.
I currently use the bluetooth audio sink example from the esp-idf which was made for the PCM51002A.
Audio is playing fine until i increase the volume to above 80%.
If i go higher i can hear some serious distortion.

What could be ...
by Danie.
Sat Nov 30, 2019 1:40 pm
Forum: ESP-IDF
Topic: a2dp_gatts_coex example not running
Replies: 0
Views: 2453

a2dp_gatts_coex example not running

Hello guys,

i tried to get the a2dp_gatts_coex example which comes with the esp-idf examples.
I am able to compile the example but on the serial monitor i get the error: "app_main enable controller failed".

I use platformio, so i am not able to run "make menuconfig", so i manually edit the ...
by Danie.
Thu May 24, 2018 12:26 am
Forum: Hardware
Topic: Questions regarding SPI hardware
Replies: 3
Views: 7911

Re: Questions regarding SPI hardware

Thank you for your reply!

Do you think its a good idea to use only one SPI-Bus for all devices? I know this is the reason why this is called bus :lol:
But especially for the display its necessary to transfer a high amount of data.
If i update the display quite often i do not have much time to ...
by Danie.
Tue May 22, 2018 9:00 pm
Forum: Hardware
Topic: Questions regarding SPI hardware
Replies: 3
Views: 7911

Questions regarding SPI hardware

Hello Guys,

i am about to design a little project and need to communicate with multiple SPI devices.
I am not sure, which pins i should use.
Due to the fact that I need much GPIO pins within the project, the SPI interface should use the minimum possible IO count.

I want to implement:
- JTAG (these ...

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