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

cy.wbz

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



image


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:
imagePioneerKit_P5LP_USB_Audio_UserGuide.pdf
PioneerKit_P5LP_USB_Audio.zip
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  • in reply to Former Member

    The project compiles fine with the latest version of PSoC Creator and appears to work (I'm using PowerfulBoard, not Pioneer Kit). However, when the components are updated to their latest versions, the project fails: the USB device continually disconnects and then tries to enumerate again on Windows 7 Pro 32-bit. Any idea what is causing this and how to fix it?

     

    Thanks for sharing this work. It's much easier than starting with the datasheets.

  • in reply to alwynallan

    I solved this problem with help from Pavan at Cypress:

    Which component version you are updating to ? If it is v2.7, please do the below modification.

    This is because we have added a workaround for a known issue. But in v2.7, it is fixed in the component itself.

     

    1)      Go to file – “USBiAP_episr.c”

    2)      Search for Interrupt function – “USBiAP_ARB_ISR”

    3)      Comment out the lines of code available inside comment section –

    /* `#START ARB_BEGIN_USER_CODE` Place your code here */

     

    /* `#END` */

    4)      Comment out the #endif available inside comments –

    /* `#START ARB_END_USER_CODE` Place your code here */

    // #endif

    /* `#END` */

     

    5) Build the project your project should work with USB component version 2.7.

    That file is one of hundreds in the "Generated Source" folder.

  • in reply to Former Member

    I was able to get this to work, but what needs to be done to get 96kHz and 24bit, I am only able to get up 48khz sampling rate. Thanks.