DIGITAL SIGNAL PROCESSING LAB

DSP-6713

DSP PROCESSOR KITSTYPES OF PROCESSOR KITS

TMS320C6711TMS320C6713TMS320C6716

TMS320C6713

C6713 DSK Board

+5v Universal power supply

AC Power cord

USB Cable

BLOCK DIAGRAM-DSP 6713

DSP 6713-FeaturesIt is a floating point DSP running at 225MHz.The basic clock cycle instruction time is 1/(225

MHz)= 4.44 nanoseconds.During each clock cycle, up to eight instructionscan be carried out in parallel, achieving up to

8×225 = 1800 million instructions per second (MIPS).

The C6713 processor has 256KB of internal memory, and can potentially address 4GB of external memory.

Contd..

The DSK board includes a 16MB SDRAM memory and a 512KB Flash ROM.

It has an on-board 16-bit audio stereo codec that serves both as an A/D and a D/A converter.

There are four 3.5 mm audio jacks for microphone and stereo line input, and speaker and head-phone outputs.

The DSK also has four user-programmable DIP switches and four LEDs that can be used to control and monitor programs running on the DSP.

Contd..All features of the DSK are managed

by the CCS which is a complete integrated development environment (IDE)

It includes : An optimizing C/C++ compiler

Assembler Linker Debugger Program loader.

Contd..The CCS communicates with the

DSK via a USB connection to a PC.

The CCS can also read signals stored on the DSP’s memory, or the SDRAM, and plot them in the time or frequency domains.

Contd..225 MHz TMS320C6713 floating point DSPAIC23 stereo codec (ADC and DAC)

Ideal for audio applications8-96 kHz sample rates

Memory16 MB dynamic RAM512 kB nonvolatile FLASH memory

General purpose I/O4 LEDs4 DIP switches(Dual Inline Package Switch)

USB interface to PC

Contd..

AIC23 CODECThe DSK uses stereo codec for input and

output of audio signals.The codec samples analog signals on

the microphone or line inputs and converts them into digital data.

Codec communicates with two channel(i)to control the codec’s

internal configuration registers(ii)to send and receive digital

audio samples.Codec has 12MHz clock

CPLDCPLD:Complex Programmable Logic

DeviceIt has 4 memory mapped

control/status registers that allow software control of various board features.

Control of the daughter card interface and signals.

Assorted “glue "logic that ties the board components together.

CPLD RegistersThese Registers allows users to control CPLD

functions in software.These registers are primarily used to access

the LED’s and DIP switches and control the daughter card interface.

TYPES OF REGISTERS

USER-REG RegisterDC-REG RegisterVERSION RegisterMISC Register

USER-REG RegisterUSER-REG is used to read the

state of the 4 DIP switches and turn the 4 LEDs on or off to allow the user to interact with the DSK.

The DIP switches are read by reading the top 4 bits of the register and the LEDs are set by writing to the low 4 bits.

DC-REG RegisterIt is used to monitor and control

the daughter card interface.It also detects the presence of a

daughter card.It also provide simple

communications with the daughter card through readable status lines and writable control lines.

VERSION RegisterThis register contains two read

only fields that indicate BOARD and CPLD versions.

This register will allow the software to differentiate between production releases of the DSK and account for any variances.

MISC RegisterThis register is used to provide

software control for miscellaneous board functions.

On the 6713DSK,the MISC register controls how auxiliary signals are brought out to the daughter card connectors.

SDRAMSDRAM-Synchrronous Dynamic

Random Access MemoryDSK uses a 128 mega bit SDRAM

on the 32 bit Processor.SDRAM must be configured in

software for proper operation.

FLASH MEMORYFlash is a type of memory which does

not lose its contents when the power is turned off.

It can be erased in large blocks commonly referred to as sectors or pages.

Once a block has been erased each word can be programmed once through a special command sequence.

The DSK uses a 512K byte external flash as a boot option.

LEDs and DIP switchesDSK includes 4 LEDs and DIP

switches.It provide the user a simple form

of input/output.Both are accessed through the CPLD USER-REG register.

DAUGHTER CARD INTERFACE

The DSK provides three expansion connectors that can be used to accept plug-in daughter cards.

The daughter card allows users to build on their DSK platforms to extend its capabilities and provide customer and application specific I/O.

There are three expansion connectors(i)memeory (ii) peripherals (iii) Host

Port Interface(HPI)

CONTD..The memory connector provides

access to the DSP’s asynchronous signals to interface with memories and memory mapped devices.

The peripheral connector brings out the DSP’s peripheral signals like clock, timers etc.

The HPI is a high speed interface that can be used to allow multiple DSP’s to communicate and cooperate on a given task.

JTAG-EmulatorJTAG: Joint Test Action GroupEmulation refers to the ability of a 

computer program in an electronic device to emulate (imitate) another program or device.

JTAG emulators designed specifically for TI's Code Composer Studio debug tools.

It is mainly used to drive the CCS.Allows for emulation hardware and

software to communicate with the DSP.

DIP SWITCHESA series of tiny switches built

into circuit boards. The housing for the switches, which has the same shape as a chip, is the DIP.

DIP switches enable you to configure a circuit board for a particular type of computer or application.

Is my DSK working?DSK Power On Self Test

Power up DSK and watch LEDsPower On Self Test (POST) program stored in

FLASH memory automatically executesPOST takes 10-15 seconds to completeAll DSK subsystems are automatically testedDuring POST, a 1kHz sinusoid is output from the

AIC23 codec for 1 secondListen with headphones or watch on oscilloscopeIf POST is successful, all four LEDs blink 3 times

and then remain on

Is my DSK working?DSK Diagnostic UtilityInstall CCS 3.1

Directions in “Quick Start Installation Guide”Diagnostic utility automatically installed

Code Composer Studio IDE

Connect power supply to DSKWait for POST to completeConnect USB cable from PC to DSK

If this is the first time connecting the DSK, you may be asked to install a driver. The driver is on the Code Composer Studio CD and will automatically be found by Windows if the CD is in the drive.

Launch Code Composer Studio C6713 DSKCCS will load and wait for your input

Code Composer Studio IDE

CCS Integrated DevelopmentEnvironment

Connecting to the C6713 DSK

Opening an Existing ProjectProject->Open

Compiling/Building a ProjectProject->Build (F7)

Loading and Running a Projecton the C6713 DSK