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| 型號： | ADSP-21160N |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| 中文描述： | 無電容，NMOS管，150mA的低壓差穩(wěn)壓器的反向電流保護(hù) |
| 文件頁數(shù)： | 7/53頁 |
| 文件大?。?/td> | 1680K |
| 代理商： | ADSP-21160N |
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This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog
Devices assumes no obligation regarding future manufacturing unless otherwise agreed to in writing.
7
REV. PrB
For current information contact Analog Devices at 800/262-5643
ADSP-21160N
April 2002
PRELIMINARY TECHNICAL DATA
Development Tools
The ADSP-21160N is supported with a complete set of
software and hardware development tools, including Analog
Devices’ emulators and VisualDSP++
1
development envi-
ronment. The same emulator hardware that supports other
ADSP-2116x DSPs, also fully emulates the
ADSP-21160N.
The VisualDSP++ project management environment lets
programmers develop and debug an application. This envi-
ronment includes an easy-to-use assembler that is based on
an algebraic syntax; an archiver (librarian/library builder),
a linker, a loader, a cycle-accurate instruction-level simula-
tor, a C/C++ compiler, and a C/C++ run-time library that
includes DSP and mathematical functions. Two key points
for these tools are:
Compiled ADSP-2116x C/C++ code efficiency—the
compiler has been developed for efficient translation of
C/C++ code to ADSP-2116x assembly. The DSP has
architectural features that improve the efficiency of
compiled C/C++ code.
ADSP-2106x family code compatibility—The assembler
has legacy features to ease the conversion of existing
ADSP-2106x applications to the ADSP-2116x.
Debugging both C/C++ and assembly programs with the
VisualDSP++ debugger, programmers can:
View mixed C/C++ and assembly code (interleaved
source and object information)
Insert break points
Set conditional breakpoints on registers, memory, and
stacks
Trace instruction execution
Perform linear or statistical profiling of program
execution
Fill, dump, and graphically plot the contents of memory
Source level debugging
Create custom debugger windows
The VisualDSP++ IDE lets programmers define and
manage DSP software development. Its dialog boxes and
property pages let programmers configure and manage all
of the ADSP-2116x development tools, including the syntax
highlighting in the VisualDSP++ editor. This capability
permits:
Control how the development tools process inputs and
generate outputs.
Maintain a one-to-one correspondence with the tool’s
command line switches.
Analog Devices’ DSP emulators use the IEEE 1149.1 JTAG
test access port of the ADSP-21160N processor to monitor
and control the target board processor during emulation.
The emulator provides full-speed emulation, allowing
inspection and modification of memory, registers, and
processor stacks. Nonintrusive in-circuit emulation is
assured by the use of the processor’s JTAG interface—the
emulator does not affect target system loading or timing.
In addition to the software and hardware development tools
available from Analog Devices, third parties provide a wide
range of tools supporting the ADSP-2116x processor
family. Hardware tools include ADSP-2116x PC plug-in
cards. Third Party software tools include DSP libraries,
real-time operating systems, and block diagram
design tools.
Designing an Emulator-Compatible DSP Board
(Target)
The White Mountain DSP (Product Line of Analog
Devices, Inc.) 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. The
emulator uses the TAP to access the internal features 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
system timing.
To use these emulators, the target’s design must include the
interface between an Analog Devices’ JTAG DSP and the
emulation header on a custom DSP target board.
Target Board Header
The emulator interface to an Analog Devices’ JTAG DSP
is a 14-pin header, as shown in
Figure 6
. The customer must
supply this header on the target board in order to commu-
nicate with the emulator. The interface consists of a
standard dual row 0.025" square post header, set on
0.1"
0.1" spacing, with a minimum post length of 0.235".
Pin 3 is the key position used to prevent the pod from being
inserted backwards. This pin must be clipped on the
target board.
Figure 5. Analog Power (AV
DD
) Filter Circuit
1
VisualDSP++ is a registered trademark of Analog Devices, Inc.
V
DDINT
AV
DD
AGND
0.01 F
0.1 F
10
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