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USB Audio Design Guide 10/61

This results in many potential build conﬁguration permutations. It is not possi-

ble for all of these to be exhaustively tested. XMOS therefore test a subset of

build conﬁgurations for proper behaviour, these are based on popular device

conﬁgurations.

Please see the various reference design sections for relevant validated build conﬁg-

urations.

When a reference design project is compiled all conﬁgurations are automatically

built. A naming scheme is employed to link a feature set to binaries. This scheme

is described in the next section.

3.2 Binary Naming

This section describes the naming scheme for the default binaries generated for

each build conﬁguration

Each relevant build option is assigned a position in the string, with a character

denoting the options value (normally ‘x’ is used to denote “oﬀ” or “disabled”

For example, Figure 3 lists the build options for the single tile L-Series Reference

Design.

Build Option Name Options Denoted by

Audio Class Version 1 or 2 1 or 2

Audio Input on or oﬀ i or x

Audio Output on or oﬀ o or x

MIDI on or oﬀ m or x

S/PDIF Output on or oﬀ s or x

Figure 3:

Single tile

L-Series build

options

For example a binary named 2ioxs would indicate Audio Class 2.0 with input and

output enabled, MIDI disabled, SPDIF output enabled.

REV 6.1

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