
Using ADSP-21489 EZ-Board
Table 1-4. Push Button Connections (Cont’d)
PB Reference Designator
SW10 ( PB3 )
SW11 ( PB4 )
Processor Pin
DAI_P19
DAI_P20
Connected via Switch
SW7.3
SW7.4
An example program is included in the ADSP-21489 installation directory
to demonstrate functionality of the LEDs and push buttons.
JTAG Interface
The JTAG connector ( P1 ) allows the standalone debug agent module to
connect a VisualDSP++ debug session to the ADSP-21489 processor. The
debug agent operates only when the external 5V wall adaptor ( P16 ) is
used.
The standalone debug agent can be replaced by an external emulator, such
as the Analog Devices high-performance USB-based emulator. Be careful
not to damage the connectors when removing the debug agent. The emu-
lator is connected to P1 on the back side of the board. See “EZ-Board
Installation” on page 1-5 for more information.
The ADSP-21489 EZ-Board can be set up as a single- or multi-processor
system. By default, the board is set up in single-processor mode. In sin-
gle-processor mode, create a VisualDSP++ session based on a standalone
debug agent or an external emulator. To use the EZ-Board in multi-pro-
cessor mode, install an external emulator. Only one external emulator is
required for the main EZ-Board; other EZ-Boards in the JTAG chain do
not require an emulator. In this mode, create a VisualDSP++ platform
based on the number of JTAG devices in the JTAG chain using the Visu-
alDSP++ Configurator. Then create a session in VisualDSP++ based on
the newly created platform.
ADSP-21489 EZ-Board Evaluation System Manual
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