1. Chapter 21b Reference Frameworks

2. Learning Objectives Introduce The Reference Frameworks
Laboratory experiment

3. What are the DSP applications
There are many DSP applications and every day many new applications are emerging.

4. What are the DSP applications?
Wireless terminals, radios, GPS applications
Digital Still Cameras, portable Fingerprint Analyzer
Internet Audio and MP3 players
IP telephone

5. What are the DSP applications?
Wireless base-stations and transcoders
DSL
Home theater audio
IBOC digital radio
Imaging and video servers & gateways

6. What are the DSP applications?
HardDisk Drive Servo Control
Industrial Motor Drives
Digital Motor Control in White Goods
HVAC Motor Control
Un-interruptible Power Supply PFC
Optical Lasers

7. What are the DSP applications
There are many DSP applications and every day many new applications are emerging.
Wireless terminals, radios, GPS applications
Digital Still Cameras, portable Fingerprint Analyzer
Internet Audio and MP3 players
IP telephone
HardDisk Drive Servo Control
Industrial Motor Drives
Digital Motor Control in White Goods
HVAC Motor Control
Un-interruptible Power Supply PFC
Optical Lasers
C5000
Wireless base-stations and transcoders
DSL
Home theater audio
IBOC digital radio
Imaging and video servers & gateways
C2000
C6000

8. Reference Frameworks, RF
We have seen that there are many applications. However, most of the systems look like the Generic system shown below
D/A 1
A/D 1
Processing Engine
A/D 2
D/A 2
Control
(HOST)
D/A n
A/D n
Figure 1 Generic System

9. Reference Frameworks, RF
If your system is similar to the one shown in Figure 1, Then why not take the source code and modify it to suit your application.
If you examine all the applications in this CD Rom, you will find that they are similar to the Generic System and with a maxim of two channel I/Os
Hidden slide

10. Reference Frameworks, RF
What is reference Framework?
A reference framework is an application “blueprint”
What the reference framework contains?
It contains:
Memory management software
Algorithm management software
Channel encapsulations software
Where the reference framework is located in the system?

11. Reference Frameworks, RF
Where the reference framework is located in the system?

12. Reference Frameworks, RF
How many Reference Frameworks exist?
To minimise the size and complexity many reference frameworks exist.
Four reference frameworks are currently available: RF1, RF3, RF5 and RF6
Design Parameter
RF1
RF3
RF5
RF6
Static Configuration 
Dynamic Object Creation
Static Memory Management
Dynamic Memory Allocation
Recommended # of Channels
1 to 3
1 to 10+
1 to 100
Recommended # of XDAIS Algos
Absolute Minimum Footprint
Single/Multi Rate Operation
single
multi
Thread Preemption and Blocking
Implements Control Functionality
Supports
HWI
HWI, SWI
HWI, SWI, TSK
Implements DSPLink (DSPGPP)
Total Memory Footprint (less algos)
3.5KW
11KW
25KW
tbd
Processor Family Supported
C5000
C5000 C6000
None Currently

13. Reference Framework by application, RF1
Design Parameter
RF1
RF1 is suited to applications such as:
Speakerphones
Smart toys
Digital Headsets
Network cameras
Digital scanners
Portable medical devices etc.
Main Advantage of RF1:
Absolute minimum footprint.
Static Configuration
Static Configuration
Static Configuration ü ü ü
Dynamic Object Creation
Dynamic Object Creation
Dynamic Object Creation
Static Memory Management
Static Memory Management
Static Memory Management ü ü ü
Dynamic Memory Allocation
Dynamic Memory Allocation
Dynamic Memory Allocation
Recommended # of Channels
Recommended # of Channels
1 to 3
Recommended # of Channels
1 to 3
Recommended # of XDAIS
Recommended # of XDAIS
Recommended # of XDAIS Algos
Recommended # of XDAIS
Algos
Algos
Absolute Minimum Footprint
Absolute Minimum Footprint
Absolute Minimum Footprint ü ü ü
single
Single/Multi Rate Operation
Single/Multi Rate Operation
Single/Multi Rate Operation
Thread Preemption and Blocking
Thread Preemption and Blocking
Thread Preemption and Blocking
Implements Control Functionality
Implements Control Functionality
Implements Control Functionality
Supports
Supports
Supports
HWI
HWI
HWI
Implements DSPLink (DSPGPP)
Implements
Implements
DSPLink
DSPLink
(DSP
(DSP
GPP)
GPP)
Total Memory Footprint (less
Total Memory Footprint (less
Total Memory Footprint (less algos)
3.5KW
algos
algos ) )
Processor Family Supported
Processor Family Supported
C5000
Processor Family Supported
C5000
C5000

14. Reference Framework by application, RF3
Implements
DSPLink
(DSP
GPP)
Total Memory Footprint (less
algos )
HWI
Supports
C5000
Processor Family Supported
Implements Control Functionality
Thread Preemption and Blocking
Single/Multi Rate Operation
Absolute Minimum Footprint
Recommended # of XDAIS
Algos
Recommended # of Channels
Dynamic Memory Allocation ü
Static Memory Management
Dynamic Object Creation
Static Configuration
Implements DSPLink (DSPGPP)
11 KW
Total Memory Footprint (less algos)
HWI, SWI
C6000
multi
1 to 10+
Recommended # of XDAIS Algos
RF3
Design Parameter
RF3 is suited to applications such as:
Internet audio players
Multi-channel phones
Digital still/video cameras
Main Advantage of RF3:
More channels
Multi-rate operations
Flexibility

15. Reference Framework by application, RF5
Implements
DSPLink
(DSP
GPP)
Total Memory Footprint (less
algos )
HWI
Supports
C5000
Processor Family Supported
Implements Control Functionality
Thread Preemption and Blocking
Single/Multi Rate Operation
Absolute Minimum Footprint
Recommended # of XDAIS
Algos
Recommended # of Channels
Dynamic Memory Allocation ü
Static Memory Management
Dynamic Object Creation
Static Configuration
Implements DSPLink (DSPGPP)
25 KW
Total Memory Footprint (less algos)
HWI, SWI,TSK
C6000
multi
1 to 100
Recommended # of XDAIS Algos
RF5
Design Parameter
RF5 is suited to applications which:
Are use for video applications
Require different channels or algorithms ü ü ü
Reference Frameworks for eXpressDSP Software:
RF5, An Extensive, High-Density System \Links\spra75a.pdf

16. Reference Framework by application, RF6
Implements
DSPLink
(DSP
GPP)
Total Memory Footprint (less
algos )
HWI
Supports
C5000
Processor Family Supported
Implements Control Functionality
Thread Preemption and Blocking
Single/Multi Rate Operation
Absolute Minimum Footprint
Recommended # of XDAIS
Algos
Recommended # of Channels
Dynamic Memory Allocation
Static Memory Management
Dynamic Object Creation ü
Static Configuration
Implements DSPLink (DSPGPP)
tbd
Total Memory Footprint (less algos)
HWI, SWI,TSK
none curently
multi
1 to 100
Recommended # of XDAIS Algos
RF6
Design Parameter
RF6 is provided for developing applications involving multiprocessor, eg a General Purpose Processor (GPP) which is an ARM9TDMI and a DSP processor which is a TMS320C55:
\Links\ OMAP5910.pdf
Main Advantage:
Utilise two processors, a GPP and a DSP ü ü ü ü
An RF6 JPEG Decoder Adaptation on the OMAP5910 Processor :
\Links\spra979.pdf

17. Reference Framework Summary
Provides a blue-print for different applications.
Source code in C language and complete and working examples are provided
Examples provided with Xdais compliant FIR filters.
System benchmarks available in advance in terms of
(a) Memory footprint
(b) instruction cycles.
Good documentation and all the software in Royalty Free.
Useful documentation:
spra793d.pdf
spru352e.pdf
spru616.pdf

18. Reference Framework, RF3 Laboratory Demonstration
In this chapter the reference framework 3 is taken as an example and a working application (for the TMS320C6416 DSK) is presented
To illustrate how the RF3 works we will consider the following example
Memory
clkControl
Control Thread
(swiControl)
SWI Audio 0
FIR
Vol
R R R
R R R
Out In
PIP
Split SWI
Join SWI
PIP
SWI Audio 1
FIR
Vol
L L L
L L L
IOM
IOM

19. Reference Framework, RF3
SWI Audio 1
Split SWI
Join SWI In
Out
PIP
IOM
SWI Audio 0
FIR
Vol
Control Thread
(swiControl)
Memory
clkControl
RF3 converts an incoming audio signal to digital data at a given sampling rate.
Then the signal is separated into two channels.
Both channels are processed independently (in this case FIR filters are used)
Then the volume of each channel is controlled (this is done in real-time)
The signals are then combined and sent to the output codec.

20. Reference Framework, hardware setup
PC (CCS)
Power supply
DSK
Oscilloscope
Signal Generator

21. Reference Framework, RF3
Let’s first locate, build and run the code for the RF3 application.
File location: c:\ti\referenceframework\ or in this CD it can be found in :
\DSP Code for DSK6416\Chapter 21 - RF3_XDAIS

22. Reference Framework, RF3
Build and run the code for the RF3 application:
Now that you have located the RF3 software, open the CCS and load the project “app.pjt”
Build, and run the project. (the .out file will be automatically loaded as the “load program” option is already set in the project options.
If the build output shows no errors and no warnings, you can proceed to the rest of the lab which is shown in the linked PDF file:
RF3 Demo on the TMS320C6416

23. Chapter 21b Reference Frameworks END