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參數資料
| 型號： | ADSP-21266SKSTZ-2D |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 數字信號處理 |
| 英文描述： | SHARC Embedded Processor |
| 中文描述： | 16-BIT, 66.67 MHz, OTHER DSP, PQFP144 |
| 封裝： | ROHS COMPLIANT, MS-026BFB, LQFP-144 |
| 文件頁數： | 10/44頁 |
| 文件大?。?/td> | 426K |
| 代理商： | ADSP-21266SKSTZ-2D |
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Rev. B
|
Page 10 of 44
|
May 2005
ADSP-21266
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.
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.
VisualDSP++ Component Software Engineering (VCSE) is
Analog Devices’ technology for creating, using, and reusing
software components (independent modules of substantial
functionality) to quickly and reliably assemble software applica-
tions. It also is used for downloading components from the
Web, dropping them into the application, and publishing com-
ponent archives from within VisualDSP++. VCSE supports
component implementation 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 DSP or external memory with a drag of
the mouse, and examine run-time stack and heap usage. The
expert linker is fully compatible with existing linker definition
file (LDF), allowing the developer to move between the graphi-
cal and textual environments.
In addition to the software and hardware development tools
available from Analog Devices, third parties provide a wide
range of tools supporting the SHARC processor family. Hard-
ware tools include SHARC processor PC plug-in cards. Third
party software tools include DSP libraries, real-time operating
systems, and block diagram design tools.
EVALUATION KIT
Analog Devices offers a range of EZ-KIT Lite
evaluation plat-
forms to use as a cost-effective method to learn more about
developing or prototyping applications with Analog Devices
processors, platforms, and software tools. Each EZ-KIT Lite
includes an evaluation board along with an evaluation suite of
the VisualDSP++ development and debugging environment
with the C/C++ compiler, assembler, and linker. Also included
are sample application programs, power supply, and a USB
cable. All evaluation versions of the software tools are limited
for use only with the EZ-KIT Lite product.
The USB controller on the EZ-KIT Lite board connects the
board to the USB port of the user’s PC, enabling the Visu-
alDSP++ evaluation suite to emulate the on-board processor in-
circuit. This permits the customer to download, execute, and
debug programs for the EZ-KIT Lite system. It also allows in-
circuit programming of the on-board flash device to store user-
specific boot code, enabling the board to run as a standalone
unit, without being connected to the PC.
With a full version of VisualDSP++ installed (sold separately),
engineers can develop software for the EZ-KIT Lite or any cus-
tom-defined system. Connecting one of Analog Devices JTAG
emulators to the EZ-KIT Lite board enables high speed, nonin-
trusive emulation.
DESIGNING AN EMULATOR-COMPATIBLE DSP
BOARD (TARGET)
The Analog Devices family of emulators are tools that every
DSP developer needs to test and debug hardware and software
systems. Analog Devices has supplied an IEEE 1149.1 JTAG test
access port (TAP) on each JTAG DSP. Nonintrusive in-circuit
emulation is assured by the use of the processor’s JTAG inter-
face—the emulator does not affect target system loading or
timing. The emulator uses the TAP to access the internal fea-
tures of the DSP, allowing the developer to load code, set
breakpoints, observe variables, observe memory, and examine
registers. The DSP must be halted to send data and commands,
but once an operation has been completed by the emulator, the
DSP system is set running at full speed with no impact on sys-
tem timing.
To use these emulators, the target board must include a header
that connects the DSP’s JTAG port to the emulator.
For details on target board design issues including mechanical
layout, single processor connections, multiprocessor scan
chains, signal buffering, signal termination, and emulator pod
logic, see the
EE-68: Analog Devices JTAG Emulation Technical
Reference
on the Analog Devices website (
www.analog.com
)—
use site search on “EE-68.” This document is updated regularly
to keep pace with improvements to emulator support.
ADDITIONAL INFORMATION
This data sheet provides a general overview of the ADSP-21266
architecture and functionality. For detailed information on the
ADSP-2126x family core architecture and instruction set, refer
to the
ADSP-2126x DSP Core Manual
and the
ADSP-21160
SHARC DSP Instruction Set Reference
.
EZ-KIT Lite is a registered trademark of Analog Devices, Inc.
相關PDF資料 |
PDF描述 |
|---|---|
| ADSP-21363 | SHARC Processor |
| ADSP-21363SBBC-ENG | SHARC Processor |
| ADSP-21363SBBCZENG | SHARC Processor |
| ADSP-21364 | SHARC Processor |
| ADSP-21364SBBC-ENG | SHARC Processor |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADSP-21267 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Preliminary Technical Data |
| ADSP-21267SKBCZ-X | 制造商:AD 制造商全稱:Analog Devices 功能描述:Preliminary Technical Data |
| ADSP-21267SKSTZ-X | 制造商:AD 制造商全稱:Analog Devices 功能描述:Preliminary Technical Data |
| ADSP-21362 | 制造商:AD 制造商全稱:Analog Devices 功能描述:SHARC Processor |
| adsp-21362bbc-1aa | 制造商:Analog Devices 功能描述: |
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