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Tips for using PDB in motor control apps on Kinetis

Posted: 24 Apr 2014 ?? ?Print Version ?Bookmark and Share

Keywords:Programmable Delay Block? trigger? ADC? GPIO pin? Kinetis K60?

The Programmable Delay Block (PDB) provides controllable delays from either an internal or an external trigger, or a programmable interval tick to the hardware trigger inputs of the ADCs. This functionality is required for applications when precise timing of ADC conversions are required, or when the measured signal must be filtered using precise sampling.

The PDB is necessary in some motor control specific applications which require advanced ADC to PWM synchronisation. This application note describes the set-up of the PDB, routing of the signal onto a GPIO pin, and sequence error handling. A typical application is the BLDC six-step method. This application note focuses on the Kinetis K60 family, the FlexTimer, and 16bit ADCs.

View the PDF document for more information.

Originally published by Freescale Semiconductor at as "Tips and Tricks Using PDB in Motor Control Applications on Kinetis".

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