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Sample - Time Base

• Changes
• Application Description

• V4.10 : Initial revision

This application firstly subscribes to the IRQ and Message service, and stops on any error (please check the displayed traces for more information).
Then, the +TIME command has to be used to start the time base process. This process is configurable with two parameters: the time period and the process notification mode.
The time period is configurable between 10 ms and 1s.
The process notification mode can be one of the following ones:

• Direct low level notification:
  the process is directly called in the low level interruption handler execution context.
  (Low Level --> Time Base Process)
   
• Message notification, from low level:
  the process is called in the application task execution context, since a message posted from the low level interruption handler.
  (Low Level --> Message Handler --> Time Base Process)
   
• Direct high level notification:
  the process is directly called in the high level interruption handler execution context.
  (High Level --> Time Base Process)
   
• Message notification, from high level:
  the process is called in the application task execution context, since a message posted from the high level interruption handler.
  (High Level --> Message Handler --> Time Base Process)
   
• Direct high level notification, with information generated in the low level handler:
  the process is directly called in the high level interruption handler execution context; the counter input is the low level handler's one.
  (Low Level --> High Level --> Time Base Process)
   
• Message notification, from high level, with information generated in the low level handler:
  the process is called in the application task execution context, since a message posted from the high level interruption handler; the counter input is the low level handler's one.
  (Low Level --> High Level --> Message Handler --> Time Base Process)
   

Once the time base process is launched, events can be monitored through the following trace levels:

• 2: Time base process events (always generated, whatever is the mode)
   
• 3: Low level handler events
   
• 4: High level handler events
   
• 5: Message handler events
   

Important note:
as written in the ADL IRQ service documentation, this one one is not available in RTE mode.
This sample is so only usable in Target environment.

Updated: Tue Sep 19 17:18:12 CEST 2006;