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GPP
message
queue
MSG
Message to GPP
Verify
message
MSG
DSP
message
queue
Message to DSP
GPP
DSP
4.2.1 Invoking the Application
4.3
Scale Sample
Scale Sample
Figure 4-3. Message Flow in the Sample Application - MESSAGE
The message sample takes the following parameters:
Parameter
Example Value
Absolute path of DSP executable
windows\message.out
Number of iterations
10000
The sample can be executed for infinite iterations by specifying the number of iterations as 0. The
following example initiates the message sample application to run for 6000 iterations.
Windows CE>s messagegpp.exe windows\message.out 6000
Figure 4-4
illustrates a combination of data streaming and messaging concepts in DSP/BIOS LINK. It
transfers data between a task running on GPP and another task running on the DSP, and sends
messages from GPP to DSP. On the DSP side, this application illustrates use of TSK with SIO and
MSGQ, and SWI with GIO and MSGQ.
SPRUEW0 – March 2007
Sample Applications
15
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