Specifications

Release Functionality

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! HID library supporting the human interface device profile

! DUN library supporting the dial up networking profile

! PBAP library supporting the phonebook access profile

3.5 Kalimba DSP Libraries

! Core library – basic low-level routines:

! Timers

! Messages (now includes long message support)

! Interrupts

! Connection buffers

! cbuffer operators (cbops) library – handles copying of data from a source buffer to a

destination buffer with optional processing of the data in a simple linked list of operators type.

way.

! Profiling

! Flash access (functions to aid reading of flash memory from the DSP).

! Audio compression CODEC libraries

! sbc library –mandatory CODEC SBC (Sub-band Coding), both encoder and decoder, for the

Bluetooth AV profiles.

! mp3 library – an mp3 decoder supporting the lower sample rate extensions of MPEG2/2.5.

! codec library – handles streaming audio over Bluetooth using the selected audio compression CODEC

(sbc, mp3 etc)

! Math library – optimised fft, ifft, sin, and sqrt functions.

! sco_process library – eases the creation of applications that handle the processing of SCO audio

streams

3.6 Example Applications

The following example applications are supplied.

Note:

These are for demonstration purposes only and are intended as the starting point for customers’

development effort.

On multimedia variants of BlueCore

! stereo_headset application implementing both a stereo headset and a stereo AV sink, including an

evaluation implementation of cVc (Clear Voice Capture) echo cancellation and noise reduction software.

! a2dp_source_dongle implements an AV source, taking audio from one of:

! internal stereo CODECs

! an external Wolfson CODEC

! USB, enumerating as USB speakers

Targeting BlueCore3-Audio Flash

! headset application implementing a mono headset.

Note:

It is also possible to use this application on older BlueCore variants, but modifications will be required.