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

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ADSP-2189M EZ-KIT Lite Evaluation System Manual 2-9
Using EZ-KIT LITE Software
• The host loses contact with the monitor while the program is run-
ning and it enters an Interrupt Service Routine when nesting is
turned on.
• The host cannot halt with the debugger’s Debug , Halt command if
global IRQ enable is disabled; however, breakpoints will work.
Command Processing
Command processing, initiated from either the UART ISR or the Halt
loop, is done in the command-processing kernel. This kernel parses the
commands and executes the instructions. If the instruction requires data
to be sent back to the host, the kernel initiates the response.
Software Breakpoints
The ability to stop the execution of code and examine processor registers
and memory is extremely helpful when debugging code. Note that the
debugger automatically inserts breakpoints at the function
main()
, when
the Settings , Run To Main command is checked, and at the
_exit
instruction.
AD73322 Codec Dual Analog Front End
The monitor does not initialize the AD73322 codec. This provides you
with greater flexibility to experiment with custom codec operations. Sim-
ple code examples, such as TalkThrough, are provided with your EZ-KIT
Lite to demonstrate some basic codec operations. It is recommended that
you model your code using these examples.
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Once the codec has been initialized, you must use a hard reset to
re-initialize it.