[ESP32-Audio-Kit Audio Development Board Review]——(2): Questions about play_mp3_control

chg0823

[ESP32-Audio-Kit Audio Development Board Review]——(2): Questions about play_mp3_control [Copy link]

 

According to the plan, test the play_mp3_control routine. First, select the play_mp3_control routine in the ESP-ADF framework of VS code. The IIC and IIS pins of the 8388 pins in the official ESP32-A1S (ES8388 version) schematic .pdf are as follows:

However, the IIC interface of the ESP32 core part in the ESP32-A1S specification book .pdf is different, which is a bit confusing, as shown below:

I checked the information online and found that many of them are pin configurations as shown below:

I found this diagram online and asked the technicians, they said it was an old version. But I tried two IO configurations, and the play_mp3_control routine still didn't work. Both times there was a problem with the IIC bus. Is there a difference between the IIC bus timing of ES8388 and the routine? Or is there another problem that needs further testing and verification?

Jacktang

Even if the picture is an old version, I suspect it is also an IO port definition.

Where is the new picture? Is there no official one?

littleshrimp

I see that the I2C pins in the two pictures are gpio23 and gpio18.

chg0823

Jacktang posted on 2021-11-20 18:47 Even if the picture is an old version, I suspect it is the IO port definition. Where is the new picture? Is there no official one?

I don't know

chg0823

littleshrimp posted on 2021-11-21 09:01 I see that the I2C pins in the two pictures are gpio23 and gpio18

The I2C in the following figure is not gpio18 and gpio23

chg0823

Jacktang posted on 2021-11-20 18:47 Even if the picture is an old version, I suspect it is the IO port definition. Where is the new picture? Is there no official one?

You can only find problems in the software if you make sure there are no problems with the hardware.

littleshrimp

chg0823 posted on 2021-11-22 09:03 The I2C in the picture below is not gpio18 and gpio23

Always configure I2C to read the default 8388 non-zero registers, or read back after writing the registers to see if the I2C communication is successful.
For example:
6.1.8 Register7 Analog Voltage Management,Default 01111100

nmg

Anxinke Xugong sent me this, please refer to this: esp32-a1s_v2.3 原理图.pdf (99.89 KB, downloads: 14)

2021-11-22 10:37 上传

点击文件名下载附件

@laocuo1142
@MianQi
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@jinglixixi
@se7ens
@Mustard is not spicy

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nmg

@wo4fisher

jinglixixi

nmg Published on 2021-11-22 10:39 Anxinke Xugong sent me this, please refer to this: @laocuo1142 @MianQi @ddllxxrr @jinglixixi @se7ens @ ...

grateful!

MianQi

When you say "didn't run successfully", do you mean that the compilation failed or that you couldn't hear any sound after downloading?

laocuo1142

jinglixixi posted on 2021-11-22 10:53 Thank you!

receive

chg0823

MianQi posted on 2021-11-22 12:19 When you say "didn't run through", do you mean the compilation didn't pass or you couldn't hear any sound after downloading?

The IIC driver for ES8388 is wrong, let alone the rest.

MianQi

chg0823 posted on 2021-11-25 09:03 The IIC driver for ES8388 went wrong, let alone the rest

I can compile and download, but I can't hear any sound - https://bbs.eeworld.com.cn/thread-1181485-1-1.html

chg0823

MianQi posted on 2021-11-25 14:20 I can compile and download, but I can't hear any sound - https://bbs.eeworld.com.cn/thread-1181485-1-1.html

In your case, the IIC write timing is wrong.