Validated Build Options; The Xcore-200 Array Microphone Board - XMOS xCORE-200 Multi-channel Audio board Design Manual

USB Audio Design Guide

6.6.5 Validated Build Options

The reference design can be built in several ways by changing the build options.
These are described in §7.1.
The design has only been fully validated against the build options as set in the
application as distributed in the Makefile. See
scheme.
These fully validated build configurations are enumerated in the supplied Makefile
In practise, due to the similarities between the U/L/xCORE-200 Series feature set,
it is fully expected that all listed U-Series configurations will operate as expected
on the L-Series and vice versa.
The build configuration naming scheme employed in the makefile is as follows:
Feature
Audio Class
Input
Output
MIDI
SPDIF output
SPDIF input
Figure 42:
ADAT output
Build config
naming
ADAT input
scheme
DSD output
e.g. A build config named 2i10o10xsxxx would signify: Audio class 2.0, input and
output enabled (10 channels each), no MIDI SPDIF output, no SPDIF input, no ADAT
or DSD
In addition to this the terms tdm or slave may be appended to the build configura-
tion name to indicate the I2S mode employed.

6.7 The xCORE-200 Array Microphone Board

An application of the USB audio framework is provided specifically for the hardware
described in
related code can be found in app_usb_aud_array_mic.
The design supports upto 2 channels of analogue audio output at sample-rates from
the on-board DAC. The design also supports input from the 7 PDM microphones.
The design uses the following components:
XMOS USB Device Driver (XUD)
Endpoint 0
XM0088546.1
Option 1
1
enabled: i (channel count)
enabled: i (channel count)
enabled: m
enabled: s
enabled: s
enabled: a
enabled: a
enabled: d
§2.2 and is implemented on an xCORE-200-series dual tile device. The
§5.3 for details and binary naming
Option 2
2
disabled: x
disabled: x
disabled: x
disabled: x
disabled: x
disabled: x
disabled: x
disabled: x
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