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ADSP-21368SKBPZENG Datasheet(PDF) 11 Page - Analog Devices |
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ADSP-21368SKBPZENG Datasheet(HTML) 11 Page - Analog Devices |
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11 / 48 page  ADSP-21368 Preliminary Technical Data Rev. PrA | Page 11 of 48 | November 2004 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 interface—the emulator does not affect target system loading or timing. The emulator uses the TAP to access the internal fea- tures of the processor, allowing the developer to load code, set breakpoints, observe variables, observe memory, and examine registers. The processor must be halted to send data and com- mands, 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 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, signal buffering, signal ter- mination, 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. 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 VisualDSP++ evaluation suite to emulate the on-board proces- sor 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 standal- one 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, non- intrusive emulation. ADDITIONAL INFORMATION This data sheet provides a general overview of the ADSP-21368 architecture and functionality. For detailed information on the ADSP-2136x Family core architecture and instruction set, refer to the ADSP-2136x SHARC Processor Hardware Reference and the ADSP-2136x SHARC Processor Programming Reference. |
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