PSoC 4 Pioneer Kit Community Project#102 – USB Audio using the PSoC 5LP

Hello!

In today’s example we are including a demonstration project for supporting Audio playback and audio recording using USB digital audio. The PSoC 5LP communicates with any USB host, provides a high-quality recording interface to it, and extras high-quality digital audio from the USB host. In this example we show the PSoC 5LP device communicating to:

Windows
Mac
Linux
Android
Raspberry Pi
BeagleBone Black
Android
iOS

This example project utilizes the PSoC 5LP device on the PSoC 4 Pioneer Kit. This example has the following features:

Audio-out (I2S)
Audio-in (PDM Mic)
USB Host Interface
Volume Control
Watchdog

The firmware was designed and tested with PSoC Creator 2.2 SP1.

Forum Post Attachments:

At the bottom of this post we are including the following items:

Example Project Zip File
Project Images
Example Documentation

Components Used:

The user can download the example project at the bottom of this post. The project uses the following list of Creator Components:

I2C
EZI2C
SPI
UART

Firmware Description:

The main.c firmware is included in the example project. Please review the commented sections for more details.

Attached to this example project is a detailed example description. In this file we include a detailed write up of the external hardware used in the example, the internal firmware architecture, and how to recreate the system on your own. Please feel free to review this document for a detailed understanding of how the example is designed and used.

We are also listing the custom components, hardware, and firmware files necessary to create this example. Please feel free to download the zip file for more information.

Hardware Connections:

The hardware connections are detailed in the attached zip project. We include the codec board schematics in the documentation folder.

Test Your Project:

Please see the below image of the example in action.

I hope this example can help you in your design.

Best,

Matt

Attachments:

	PioneerKit_P5LP_USB_Audio_UserGuide.pdf
PioneerKit_P5LP_USB_Audio.zip

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greatunclebulgaria over 11 years ago

Matt,

Thanks for this post, looks very interesting, BUT I'm having trouble with the hardware connections.

	POSC4 P5LP header Pin	POSC4 P5LP header Name	AK4556 J6 Header	AK4556 Pin Number	CS42L51	CS42L51 Pin
VDD	1	P5 VDD	J6-35/36	4/5		5/12/27
I2C_SCL	2	P1.2			PSOC_CODEC_I2C_SCL	3 – SCL/CCLK
PDM_DATA	3	P0.0
LRCLK	4	P0.1	J6-15 (P5-3)	14 - LRCK	TP113 – CODEC_LRCLK	1 - LRCK
PDM_LR_SEL	5	P3.4
SCLK	6	P3.5	J6-13 (P5_5)	16 - BCLK	TP112 – CODEC_SCLK	31 - SCLK
CODEC_RST	7	P3.6			TP111 – CODEC_RST	25 - RESET
SDTO	8	P3.7	J6-11 (P5-7)	8 - SDTO	TP115 – CODEC_SDTO	29 – SDOUT/M/S
PDM_CLK	9	P12.6
MCLK	10	P12.7	J6-12 (P5_6)	15 - MCLK	TP110 – CODEC_MCLK	30 - MCLK
GND	11	GND	J6-37	3		13/28
I2C_SDA	12	P3.0			PSOC_CODEC_I2C_SDA	2 – SDA/CDIN


					TP114 – CODEC_SDTI

As you can see I am unable to match up all the pins to the CS42L51, and am not entirely sure of the AK4556 pin connections.

I'm surprise you used a CODEC with limited availability, and not board support.

After a quick Google I found Audio Codec PROTO - Development Board with WM8731 Audio Codec which I think does all you are doing with the codec, and is available on a development board in the States for $19?!?

Nice idea, and nice code, but I'm surprised and disappointed by your choice of hardware.

OR MAYBE I'M MISSING THE POINT?

Thanks for all the projects, I've been following since before the 100 days projects, and have a PSoC4 and many of the shields you have demo’ d.

Well done

Thanks

David

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