VSDSP Forum

The VS1005 Amp Board is a brand new application development board for VS1005. It features a class D amplifier for direct connection to speakers or speaker elements.

The Amp Board has connectors for analog and digital inputs and outputs as well as speaker outputs. It also features eight LEDs and four buttons for a user interface.

Potential applications for the VS1005 Amp Board are:

• Active speaker with crossover implemented by the firmware for two speaker elements.
• Stereo amplifier with equalization filters.
• Any kind of customized audio media player with a stereo speaker output.

This thread will contain the latest releases of the AmpBoard firmware and documentation. For how to install the software, read the documentation PDF file inside the ZIP file.

To keep this thread from cluttering, this is a locked thread. For any questions on how to get the board running, please open a new thread under the VS1005 and VSOS Software forum.

Kind regards,
- Henrik

Attached to this message is v1.00 of the VS1005 Amp Board Firmware. Read the documentation in the ZIP file for details.

Kind regards,
- Henrik

Here is a slight documentation update. The biggest new thing is a mention that this firmware requires at least VSOS 3.27 to work.

Kind regards,
- Henrik

Hello!

Here is a minor update for VSOS 3.57 that we released just a few days ago.

One change is that the solution AmpBConf included in this package can now be customized so that the user can tell which pin acts as the SD card's power regulator control pin. So, while the default is still 0x07 for GPIO0_7 that is the VS1005 control pin for the SD card regulator on the Amp Board, you can now use e.g. 0x23 for the VS1005 Breakout Board v2.1, which uses GPIO2_3. See file solutions/AmpBConf/README.TXT for details on how to use it.

I hope this update proves useful!

Kind regards,
- Henrik

Oh,

please note that the new version of AmpBConf of the previous message is not yet part of the VSOS 3.57 Root Images and Libraries package because that was released already a week ago. So, if you want the new functionality, download AmpBConf.dl3 from here until the next VSOS release's Root Images and Libraries are released.

Kind regards,
- Henrik