Software description (getting started with APWorkbench)

AN4227

6/13

DocID024106 Rev 1

2

Software description (getting started with

APWorkbench)

The firmware of the ST audio hub supports two different audio frameworks. In the first case

of the board essentially as a PDM decoder that allows the couple of microphones on the

board to be interfaced directly to the PC via the USB in which case the board will be

recognized by the operative system as "STM32 Capture PDM mode".

The APWorkbench tool allows choosing one of these modes by following these simple

steps:

1.

Run the tool

2.

Click on the "MEMS Microphones Demo Kit" button

3.

Select the mode in the "Microphone Kit selection" box

4.

Click on the "Run Selected Application…" button

2.1

STSmartVoice interface

If the user wants to operate the board as the STSmartVoice interface, the corresponding

mode must be selected as shown in Figure 4.

Figure 4. APWorkbench launch wizard (STSmartVoice demonstration kit)

a. APWorkbench is compatible with Windows XP, Windows Vista and Windows 7.