ADSP-21362/ADSP-21363/ADSP-21364/ADSP-21365/ADSP-21366
Debugging both C/C++ and assembly programs with the
VisualDSP++ debugger, programmers can:
ADSP-213xx
100nF
10nF
1nF
A
V
VDD
DDINT
• View mixed C/C++ and assembly code (interleaved source
and object information)
HI Z FERRITE
BEAD CHIP
• Insert breakpoints
A
VSS
• Set conditional breakpoints on registers, memory,
and stacks
LOCATE ALL COMPONENTS
CLOSE TO A AND A PINS
VDD
VSS
• Trace instruction execution
• Perform linear or statistical profiling of program execution
• Fill, dump, and graphically plot the contents of memory
• Perform source level debugging
Figure 4. Analog Power (AVDD) Filter Circuit
and modification of memory, registers, and processor stacks.
The processor’s JTAG interface ensures that the emulator will
not affect target system loading or timing.
• Create custom debugger windows
The VisualDSP++ IDDE lets programmers define and manage
DSP software development. Its dialog boxes and property pages
let programmers configure and manage all of the SHARC devel-
opment tools, including the color syntax highlighting in the
VisualDSP++ editor. This capability permits programmers to:
For complete information on Analog Devices’ SHARC DSP
Tools product line of JTAG emulator operation, see the appro-
priate “Emulator Hardware User’s Guide.”
DEVELOPMENT TOOLS
The ADSP-2136x is supported with a complete set of
CROSSCORE®† software and hardware development tools,
including Analog Devices emulators and VisualDSP++®‡ devel-
opment environment. The same emulator hardware that
supports other SHARC processors also fully emulates the
ADSP-2136x.
• Control how the development tools process inputs and
generate outputs
• Maintain a one-to-one correspondence with the tool’s
command line switches
The VisualDSP++ Kernel (VDK) incorporates scheduling and
resource management tailored specifically to address the mem-
ory and timing constraints of DSP programming. These
capabilities enable engineers to develop code more effectively,
eliminating the need to start from the very beginning, when
developing new application code. The VDK features include
threads, critical and unscheduled regions, semaphores, events,
and device flags. The VDK also supports priority-based, pre-
emptive, cooperative, and time-sliced scheduling approaches. In
addition, the VDK was designed to be scalable. If the application
does not use a specific feature, the support code for that feature
is excluded from the target system.
The VisualDSP++ project management environment lets pro-
grammers develop and debug an application. This environment
includes an easy to use assembler (which is based on an alge-
braic syntax), an archiver (librarian/library builder), a linker, a
loader, a cycle-accurate instruction-level simulator, a C/C++
compiler, and a C/C++ runtime library that includes DSP and
mathematical functions. A key point for these tools is C/C++
code efficiency. The compiler has been developed for efficient
translation of C/C++ code to DSP assembly. The SHARC has
architectural features that improve the efficiency of compiled
C/C++ code.
Because the VDK is a library, a developer can decide whether to
use it or not. The VDK is integrated into the VisualDSP++
development environment, but can also be used via standard
command line tools. When the VDK is used, the development
environment assists the developer with many error-prone tasks
and assists in managing system resources, automating the gen-
eration of various VDK-based objects, and visualizing the
system state, when debugging an application that uses the VDK.
The VisualDSP++ debugger has a number of important fea-
tures. Data visualization is enhanced by a plotting package that
offers a significant level of flexibility. This graphical representa-
tion of user data enables the programmer to quickly determine
the performance of an algorithm. As algorithms grow in com-
plexity, this capability can have increasing significance on the
designer’s development schedule, increasing productivity. Sta-
tistical profiling enables the programmer to nonintrusively poll
the processor as it is running the program. This feature, unique
to VisualDSP++, enables the software developer to passively
gather important code execution metrics without interrupting
the real-time characteristics of the program. Essentially, the
developer can identify bottlenecks in software quickly and
efficiently. By using the profiler, the programmer can focus on
those areas in the program that impact performance and take
corrective action.
VisualDSP++ component software engineering (VCSE) is Ana-
log Devices’ technology for creating, using, and reusing software
components (independent modules of substantial functionality)
to quickly and reliably assemble software applications. It allows
downloading components from the Web, dropping them into
the application, and publishing component archives from
within VisualDSP++. VCSE supports component implementa-
tion in C/C++ or assembly language.
Use the expert linker to visually manipulate the placement of
code and data on the embedded system. View memory utiliza-
tion in a color-coded graphical form, easily move code and data
to different areas of the processor or external memory with a
† CROSSCORE is a registered trademark of Analog Devices, Inc.
‡ VisualDSP++ is a registered trademark of Analog Devices, Inc.
Rev. A
|
Page 10 of 52
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December 2006
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