Version Control with Processor Expert Projects


Using a version control system for software development is a standard procedure today. While things are pretty clear for ‘standard’ Eclipse projects, it is not that easy for Processor Expert projects. I’m using Processor Expert projects with Git and SVN (Subversion). I want to share here tips how to use Processor Expert projects with a version control system. Screenshots and vocabulary are for TortoiseGit and Git, but applicable to any other VCS (Version Control System).

Git Repositories View in Eclipse

Git Repositories View in Eclipse

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Maze solving FRDM-KL25Z Robot goes backward for Dead-Ends


The maze solving robot based on the Freedom FRDM-KL25Z and Pololu Zumo shield has new features:

  1. For dead-end paths, instead turning around, the robot is driving backward
  2. Higher speed for going forward/backward/turns
  3. In the finish area, the robot turns around
  4. It reverts the solution path, so the robot can directly run from the finish area to the start
FRDM-KL25Z Robot on Practice Area

FRDM-KL25Z Robot on Practice Area

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Tutorial: PWM with Processor Expert


For many of my applications I’m using a PWM (Pulse Width Modulated) signal. One example is the motor driver used in this project where I use one PWM signal for each motor. Another usage of PWM is to control the brightness of an LED. Processor Expert makes usage of the PWM hardware easier. Still, for some settings it is good to have the resulting signals in mind. So in this post I’m showing how the settings impact the PWM signal generated.

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Search in Processor Expert Component Properties


Sometimes I’m looking for a functionality, and I cannot find it. But this does not mean that it does not exist ;-).

The Eclipse preference pages have a great filter text field: If I want to change a setting which has something to do with ‘color’, I can enter that text and it will show me all setting pages having something to do with ‘color':

Eclipse Preference Filter

Eclipse Preference Filter

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USB MSD Host for the Freedom Board


Sometimes things take longer than anticipated. And this is definitely the case for my USB MSD Host project where I wanted to use a USB memory stick with the Freedom FRDM-KL25Z board.

Memory Stick attached to the Freedom Board

Memory Stick attached to the Freedom Board

But finally, I have things working. At least most of the time ….

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Switching Processor Package in Processor Expert


When I create a new project for the KL05Z with Processor Expert, then it shows up as 48 pin LQFP package in the project:

48pin LQFP Package in Components View

48pin LQFP Package in Components View

However, when I look at my board, it has a KL05Z32 in a LQFP package with 32 pins:

FRDM-KL05Z Board

FRDM-KL05Z Board

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