SPIRIT C54CST Newsflash

Contents

-          Important Announcements - C54CST version 2

-          What’s new with C54CST?

-          What’s new in CST SDK?

-          CST and DSP/BIOS

-          SPIRIT Dedicated Support for C54CST is now available

Important Announcements - C54CST version 2

C54CST chip version 2 (a.k.a. “CST2”) is available since Fall of 2002.

CST2 chips have both “SPIRIT” and “TMS” labels on their top. CST1 chips (labeled “TMX”, no “SPIRIT” label) are considered outdated and no longer supported. CST2 and CST1 chips software in ROM is incompatible and applications written for CST1 can be easily migrated to CST2 (most of the high-level API remained without changes).

Currently supported versions of the Code Composer Studio (CCS) are 2.10 and 2.20.

CST2 chip contains 40 KW of internal data RAM, 128 KW ROM and 120 MHz. C54CST ver. 2 are available through TI distribution channels at $8.25/1KU.

What’s new with C54CST?

1.      Latest version of CST SDK is available for free download from SPIRIT website (11 MB). It is enough to download CST SDK to have the latest version of everything. However, you may choose to download only certain components of it from here.

2.      Latest CST Patch is now available for download here. It adds some new functions to CST and fixes known CST bugs, and is applicable for both chipset and flex modes.

3.      Support for DSP/BIOS has been significantly enhanced.

4.      Software Add-on algorithms are now available for licensing from SPIRIT:

§         AEC for full-duplex speakerphone solutions

§         V.29/V.22-based Fast Connect for POS-terminals algorithm

§         G.723.1 Vocoder algorithm

§         G.729AB Vocoder algorithm

§         G3 Fax data pump algorithms (V.21,V.27/V.29/V.17)

§         Fax over IP (T.38) with G3 Fax algorithm

§         CST Low Bit Rate Vocoder 1200 bps algorithm

§         Signaling (MF R1, MF R2)

What’s new in CST SDK?

Latest version of CST SDK is available for free download from SPIRIT website (11 MB).

Run the file CSTInstall.exe (it is a self-extracting archive). Specify the destination folder to extract the files to (it can be any folder, but it is recommended to specify your TI folder, usually C:\TI\C5400, so that all CST files would reside in C:\TI\C5400\CST), and press “Install”.

Start with reading CST\readme.shtml.

Documentation

1.      Full set of CST documentation including: CST algorithms data sheets and user’s guides, data sheets for CST add-ons, related application notes and revised “CST Chip Software User’s Guide”

2.      The following documents have been added to speed up getting started with CST:

a.      “C54CST Overview.pdf” - general CST overview

b.      “cst_quickstart.pdf” - getting started with CST in chipset mode using a 5406 EVM board

c.       “CST_HandsOnLab.pdf” - comprehensive presentation giving general CST overview and introducing to the CST flex mode (two simple applications are provided as case study)

d.      “CST2 SDK Release Notes.pdf” - describes latest modifications and features in the CST SDK

e.      “CST2 FAQ.pdf” - this FAQ may help with your questions, it’s based on the CST support work

 

Flex Example Applications

1.      Existing flex applications have been updated and new flex applications have been added. New applications include: an EventTrace application to show internal CST Framework messages and applications, an application working with AIC20 codec, and an application showing DMA operations with C54CST

Figure 1 - EventTrace Application

 

2.      A set of standalone XDAS applications has been added. The purpose of these applications is to show how to use the CST XDAS algorithms directly, omitting the CST Framework layers

3.      A few new flex application examples added

Utilities

1.      Flex2Flash - allows to burn a flex application, loaded into CST's RAM, into a Flash on C54CST EVM

2.      FlexLoader - boots a flex application to C54CST over UART

3.      Hextobin - converts a flex application .out file to .hex file, whose format is supported by CST bootloader. The .hex file then can be booted over UART

4.      G726 Converter and G7xxConverter - G726, G711 converters

5.      UMTDcfg - simplifies creation of configuration files for the CPT and DTMF detectors

 

Figure 2 - UMTD Configuration tool

 

Figure 3 - UMTD Configuration tool

Other software (CSL, etc.)

Chip Support Library (CSL) updates for Code Composer Studio 2.10 and 2.20. These updates were specially corrected for use with C54CST chip. The CSL update for CCS 2.10 matches the CSL for CCS 2.20 almost entirely, so the functionality of both is identical.

CST and DSP/BIOS

Support for DSP/BIOS has been significantly enhanced.

1.      The DSP/BIOS program memory overhead has been minimized in CCS 2.20 projects to the level of CCS 2.10 projects. Previously, CCS 2.20 DSP/BIOS projects had around 1.5 KW of extra program memory overhead due to certain CCS incompatibilities.

2.      Memory management and multithreading with DSP/BIOS have been cleared up in the “CST2 SDK Release Notes.pdf” document. A few new example projects have been added to the SDK specifically to show how to run CST framework and algorithms in SWIs, TSKs, how to use either of the memory managers or both at the same time.

3.      A few important CSL- related adjustments to the flex example applications have been made. This fixed a number of issues in DSP/BIOS-based applications making extensive use of CSL.

4.      The problem of using DSP/BIOS Real Time Analysis Tools such as CPU Load Graph has been fixed in the newest CST patch.

Here are a few successful applications made on CST with use of DSP/BIOS:

·         VoIP gateway

·         Intelligent Phone for disabled people

SPIRIT Dedicated Support

SPIRIT offers Dedicated Support to help you integrate C54CST into your product in the most sufficient, quickest way possible. You can learn more about the terms of support at http://www.spiritdsp.com/cst/support.shtml or request more information via Product Request Form.

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