TigerSHARC Laboratory

Setting up the HPP-ICE environmentICT 318 / 320

Running versions of the Audio-talk-through program

16 December 2006 Setting up TigerSHARC laboratory station 2

Details

In Winter 2007 16 Blackfin ADI-BF533 Ez-lite evaluation boards

in ICT 320 8 TigerSHARC ADI-TS201S Ez-lite evaluation

boards in ICT 318

Blackfin interface

TigerSHARC interface is similarHas 2 audio I/O sockets (DSP A) plus 2 LEDs and 3 buttons (DSP A) plus 2 LEDs and 3 buttons (DSP B)

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Set up

If you use the same lab. station and same account each time (recommended), then you will have to do the set up just once.

If you move stations, then you will need to do the set-up everytime

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Steps Power-up evaluation board Log into your account Set-up on your U: drive the directory ENCM515

Activate the VisualDSP configurator and “make a dual processor ENCM515 session”. Then exit from configurator.

Activate the Visual DSP development environment IDDE, select “dualENCM515” session, build (or download) a VisualDSP TigerSHARC project, or download an existing one.

You are on your way

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Activate the configuratorfrom the start menu

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Select TS201 EZ-Liteand then press “COPY”

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Change PLATFORM NAMEto dualProcessorENCM515then OK

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When back at CONFIGURATORSelect “dualProcessorENCM515”Then select Test

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Change TYPE to HPPCI-ICEPress STARTRecommend you do this test at the beginning of each lab

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This was a “failure to power up board”, can also be “no ICE connected” (e.g. wrong TYPE)

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Expected resultIf you see “1 JTAG device detected”, you are at a Blackfin station – Change rooms

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Testing completeSelect OK

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Now ready to activateVisualDSP IDDE

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TARGET: You must select the correct “session” for TS201S

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I) Select Processor Family2) Select TS201, then NEXT

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3) In LAB. select Emulatorelsewhere select EZ-KIT (uses USB)

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4) Select dualProcessorENCM515 for the platform

16 December 2006 Setting up TigerSHARC laboratory station 18WHICH DSPS ARE

RUNNING

PROJECTWINDOW

COMMAND and BUILDWINDOWS

DISASSEMBLYWINDOW

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Download Environment

Exit from VisualDSP IDDE Change directory to U:ENCM515Labs Directory Download ENCM515Environment.zip into

U:ENCM515Labs Extract to here MAKE SURE THE UNZIP WENT CORRECTLY. IF

THINGS WENT INTO WRONG FOLDER THEN MORE WORK TO BE DONE IN LABS AND ASSIGNMENT

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Make sure you are not in a subdirectory

You may find a DSPUtilities directory

U:/ENCM515Labs/

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Open the existing ENCM515Lab1 project in U:/ENCM515Labs/Lab1

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Look in ENCM515Lab1Def.h

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Audio Talkthrough Program

Connect up your ear-phones to I-POD, radio, CD player (can use the CD player in Lab. Station)

Check that volume is comfortable to listen to Connect IPOD to TigerSHARC audio in Connect Earphones to TigerSHARC audio

out

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Do a BUILD and then DEBUG | RUN

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Warning: Make sure that Processor DSP A is running – otherwise no sound

You may need to click on DSP A before selecting DEBUG | RUN

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DSP-A is runningSet View | Editor Tab

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Now see file names

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Listen to various forms of the program

Quality of sound Time how long delayed sound takes to arrive

at the other ear Do this with each mode of operation

#define WHICH_AUDIOHANDLER audio_intShuffle_DebugMode //#define WHICH_AUDIOHANDLER audio_intShuffle_ReleaseMode //#define WHICH_AUDIOHANDLER audio_intCB_DebugMode //#define WHICH_AUDIOHANDLER audio_intCB_ReleaseMode

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Delay by memory shuffleand circular buffer

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Look at what code is executing

CommonShuffle_CPPCode.h Delay line performed by shuffling (move)

DelayLine[N] DelayLine[N-1]; CommonCB_CPPCode.h

Circular Buffer operation Debug mode

C++ compiler generating unoptimized code Release mode (files marked with ! )

C++ compiler generating optimized code

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TimeToWaste Parameter

When running circular buffer code, adjust the parameter “TIME_TO_WASTE” to see how much extra time is available for extra processing.

Try increasing in steps of 0x1000 until sound quality gets worse. Later we will turn this number into processor cycles.

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Testing by listening is very time consuming

We need an automated test framework to make code optimization easier

Will discuss in the next class