User`s guide

New Features
2-3
New Options to Enable RTDX
The To RTDX and From RTDX blocks include a new feature that lets you
enable the RTDX channels defined by the blocks in your models.
When you add RTDX blocks to your model, you enable the associated channels
by selecting the
Enable RTDX option when you configure the block. When you
generate code from the model, the generation process dynamically sets the
buffer sizes for the channels.
In addition, you can use more than one To RTDX and From RTDX block in
a model, giving you more freedom where and when data communication occurs.
Added DSP Process Overrun Indicators
Along with reinstating the overrun indicators, you now have options that
specify how the targeting software notifies you about an overrun condition in
your program and how your program responds to the overrun. Briefly, the new
options, which appear in the
Overrun notification method list, are
•
Print_message—print a message to stdout, or to the message log if your
application uses DSP/BIOS
•
Turn_on_LEDs—illuminate the user LEDs on the target, either the external
LED on the C6701 EVM or all of the user LEDs on the C6711 DSK
•
Print_message_and_turn_on_LEDs— light the LEDs and print a message
To enable these notification options, select an
Overrun Action:
•
None—your program does not respond to overrun conditions during
processing.
•
Notify_and_continue—when your program enters an overrun condition, it
notifies you that it encountered an overrun and continues executing. In
interrupt driven programs, overrun situations arise when the next interrupt
occurs before the processing for the previous interrupt reaches completion.
The notification you receive depends on your selection for the
Overrun
notification method
.
•
Notify_and_halt—when your program enters an overrun condition, it
notifies you that it encountered an overrun and stops executing. In interrupt
driven programs, overrun situations arise when the next interrupt occurs
before the processing for the previous interrupt reaches completion. The