ADSP-2181 EZ-KIT Lite Evaluation System Manual
2-9
Using EZ-KIT LITE Software
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.
AD1847 Codec Dual Analog Front End
The monitor does not initialize the AD1847codec. This provides you with
greater flexibility to experiment with custom codec operations. Simple
code examples, such as Echo, are provided with your EZ-KIT Lite to dem-
onstrate some basic codec operations. It is recommended that you model
your code using these examples.
AD1847 Codec Transmissions
After initialization, the AD1847 codec generates the clock used to transfer
data across
SPORT0
. The ADSP-2181 DSP initiates all transmissions with
the AD1847 device by sending a synchronization pulse. Even though the
AD1847 transmits the data clock, it may not be ready for normal
operation.
Initialization of the AD1847 codec is performed by sending 13 control
words contained in a circular buffer to the AD1847 codec. This is usually
done via the
SPORT0 TX
interrupt routine. Once the codec is initialized,
autobuffering is used to fill up the
TX
and
RX
buffers, which use circular
buffering. Once the circular buffer wraps around, then either a
TX
or
RX
interrupt occurs. Then the DSP processes the interrupt request.
Содержание ADSP-2181
Страница 42: ...Using EZ KIT Lite VisualDSP Interface 2 18 ADSP 2181 EZ KIT Lite Evaluation System Manual ...
Страница 58: ...Designing EZ ICE Compatible Systems 3 16 ADSP 2181 EZ KIT Lite Evaluation System Manual ...
Страница 60: ...A 2 ADSP 2181 EZ KIT Lite Evaluation System Manual ...
Страница 64: ...B 4 ADSP 2181 EZ KIT Lite Evaluation System Manual ...
Страница 70: ...INDEX I 6 ADSP 2181 EZ KIT Lite Evaluation System Manual ...
