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ADDS-21XX-TOOLS Datasheet(PDF) 6 Page - Analog Devices |
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ADDS-21XX-TOOLS Datasheet(HTML) 6 Page - Analog Devices |
6 / 16 page REV. B –6– ADDS-21xx-TOOLS An AD1847 SoundPort® codec is connected to the DSP through serial port 0. The AD1847’s sampling rate can be programmed for analog-to-digital and digital-to-analog conversion from 5.5 kHz to 48 kHz. The high-speed synchronous serial port carries all of the data, control, and status information between the DSP and the codec. The codec may be disconnected from the serial port if the port is needed for other purposes. Input to the codec can be a microphone, signal generator, or any other high impedance source, while the resulting output signal can drive an amplified speaker or the line-level input of other audio equipment. As with all EZ-LAB evaluation boards, the ADDS-2181 EZ- LAB provides a manual power-on reset button, an interrupt button, and an LED controlled by the FL1 Flagout pin. Although the IDMA port on the ADSP-2181 is not used on the EZ-LAB board, all of the IDMA signals are available through an expansion connector. Device Specific EZ-KITs Two other EZ-KITs are available for specific members of the ADSP-21xx Family. ADSP-2101 EZ-KIT The ADSP-2101 EZ-KIT is a starter package for system development that combines the ADSP-2101 EZ-LAB with an Assembler software package and a Simulator. This EZ-KIT may also be used for developing applications targeting the ADSP-2105 and ADSP-2115 processors. ADSP-2111 EZ-KIT The ADSP-2111 EZ-KIT is a starter package for ADSP-2111- based system development that combines the ADSP-2111 EZ- LAB with an Assembler software package and a Simulator. ADSP-2100 FAMILY EZ-LAB EVALUATION BOARDS The ADSP-2100 Family EZ-LAB Evaluation Boards are a complete DSP system on a single board that lets you test coded applications in real time. Some EZ-LABs provide for booting from EPROM and others allow upload/download capabilities from a host PC. Table II lists the features of the different versions of the EZ-LAB available for the ADSP-2100 family. ADSP-2181 EZ-LAB See the discussion of the ADSP-21xx EZ-KIT Lite for information on the ADSP-2181 EZ-LAB. ADSP-2101 & ADSP-2111 EZ-LABs The ADSP-2101 and ADSP-2111 EZ-LABs are similar in design and use. A complete DSP system on a single board, the EZ-LAB lets you test coded applications in real time without an external host. At reset, the processor on the EZ-LAB boots code and programs memory data into its internal program memory from a 64K × 8-bit EPROM and then executes the code. The ADSP-2101 and ADSP-2111 EZ-LAB provide manual control of several functions. For example, push-buttons activate the IRQ2 interrupt and FLAG IN pins, and an on-board hardware RESET switch resets the EZ-LAB. In addition to the standard features of the ADSP-2101, the ADSP-2111 includes a Host Interface Port (HIP) that is also included on the ADSP-2111 EZ-LAB board as a separate connector. The ADSP-2111 EZ-LAB board replaces the ADDS-2101’s User Interface Connector with an Expansion Connector that allows access to the external address and data bus and control lines of the DSP. The demonstration boards operates alone when you attach them to a +5 V dc @ 1 amp and ±12 V dc power supply with a common power return. Demo Programs Use the prepared demonstrations on the ADSP-2101 and ADSP-2111 EZ-LABs, which include speech and graphics applications, to familiarize yourself with and to evaluate the ADSP-2100 Family processors. The EPROM is mapped into the boot memory space. Upon reset, the processor loads boot page 0 into its internal program memory and begins execution. During program execution, any one of the eight boot pages can be loaded into the processor under software control. The demonstrations use the microphone and speaker connections for audio input and output. The ADSP-2101 and ADSP-2111 EZ-LABs have four DAC outputs to connect to an oscilloscope for display. In addition to these outputs, these EZ- LABs have an expansion connector and a serial port connector for synchronous serial data I/O. The connectors let you access the serial ports, external address bus, external data bus, control signals, interrupt lines, and the host interface port. Analog I/O A codec attaches to the processor’s serial port 0 on the ADSP- 2101 and ADSP-2111 EZ-LABs. Configure the other serial port for interrupts and flags by changing on-board jumpers. The input signal to the codec can be a microphone, signal generator or any other high impedance source, and the resulting output signal can drive a small speaker. The ADSP-2101 EZ-LAB and ADSP-2111 EZ-LABs contain socket-mounted 16.384 MHz crystals. The socket lets you replace the crystal to achieve different clock speeds. ADSP-2105 and ADSP-2115 System Development The ADSP-2101 EZ Development Tools support the ADSP- 2105 and the ADSP-2115 because their architectures are subsets of the ADSP-2101. The ADSP-2105 has one serial port (instead of two), and both the ADSP-2105 and the ADSP-2115 have half the internal memory of the ADSP-2101. Use the ADSP-2101 EZ-LAB to evaluate, and the ADSP-2101 EZ-ICE for emulation and debugging of both the ADSP-2115 and ADSP-2105 target systems. The ADSP-2171 EZ-LAB The ADSP-2171 EZ-LAB is an easy to use hardware development platform on which you can quickly get started with your ADSP-2171-based application. Applications can be run in real-time with or without a PC host. This EZ-LAB has four modes of operation: • EZ-LAB can be controlled from your PC host when the board is plugged into the PC backplane; programs can be downloaded and uploaded, the processor can be reset, and program execution can be initiated. • EZ-LAB can be interfaced to an EZ-ICE Emulator; through the EZ-ICE, programs can be loaded into EZ-LAB, program execution can be initiated and halted, register and memory locations can be examined and altered, and other debugging operations can be performed. SoundPort is a registered trademark of Analog Devices, Inc |
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