Analog Devices ADSP-2189M EZ-KIT Lite, Руководство пользователя

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ADSP-2189M EZ-KIT Lite Evaluation System Manual 2-5
Using EZ-KIT LITE Software
interrupt is masked in any way, the debugger is not able to communicate
with the host program. The following rules and restrictions should be fol-
lowed when using interrupts.
• You cannot step into an interrupt
• Interrupts are disabled when the user program is halted
• The board cannot communicate with the host if interrupt nesting
is enabled.
• If you do not require the supplied monitor program, a start-up rou-
tine that dynamically alters the
Timer
interrupt vector can be used.
This removes all monitor function.
Serial Ports
The ADSP-2189M DSP features two synchronous bi-directional Serial
Ports (SPORTs),
SPORT0
and
SPORT1
. The SPORTs can operate at up to
1x clock frequency, providing each with a maximum data rate of
30 Mbit/sec. SPORT data can be automatically transferred to and from
on-chip memory using DMA.
SPORT0
is connected to the on-board AD73322 codec. The
JP2
jumper can
be used to disable the codec.
SPORT1
is connected to the RS-232 interface
and is used as a software Universal Asynchronous Receiver/Transmitter
(UART). Communications between the monitor and the host are through
SPORT1
, which can be disabled withe the
J6
jumper.
For more information on the Serial Ports, refer to the ADSP-218x DSP
Hardware Reference.
POST Routines
Power On Self-Test (POST) routines are a series of standard tests and ini-
tializations that the ADSP-2189M EZ-KIT Lite performs on a power-on
reset. To perform a power-on reset, disconnect power to the board for at