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Using the development trigger semaphore module as implemented on the MPC564xA

Posted: 09 Sep 2010     Print Version  Bookmark and Share

Keywords:development trigger  semaphore module  MPC564xA module 

As automotive powertrain and other engine control applications (such as those used in hybrid vehicles) become more complex, the need for more advanced tools and development processes increases. The MPC564xA1 implements new features specifically for use in advanced automotive development processes. One of the new features is a module specifically intended to enable the user software to signal to an external tool that data is available.

This application note describes the operation of the development trigger semaphore (DTS) module and its primary intended use. There are other ways that this module may be used, but only the primary intended use is discussed in this application note. The calibration process of a new engine requires real-time access to calibration tables and the ability to update these tables in real time. Another important aspect of the development process requires real-time access to data measurements, for example, sensor data or data calculations. The DTS module specifically targets real-time access to measurements available in the CPU that affect the operation of the engine. Generally, these data measurements are time-aligned or angle-aligned to the engine.

View the PDF document for more information.

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