After my first post using a Bluetooth module, things have evolved a bit. The challenge with these Bluetooth modules is: they look the same, but having different firmware. I did not fully realize that until I have ordered another bluetooth module from dx.com:
DX.com Bluetooth Module (HC-06)
That module comes already on a carrier, so I assumed I can use the same driver as for my other module. I was wrong .
This post starts a small (or larger?) series of tutorials using the Arduino Motor/Stepper/Servo Shield with the FRDM-KL25Z board. That motor shield is probably one of the most versatile on the market, and features 2 servo and 4 motor connectors for DC or stepper motors. That makes it a great shield for any robotic project .
Arduino Motor Stepper Servo Shield with FRDM-KL25Z
Not everyone is familiar with Git, and not everyone wants to use it. Although I think using Git or SVN is something every software engineer today needs to master To make it easier for the ‘non-Gitter’ to use the Processor Expert components, they are available now as *.PEupd files as described here. However, the *.PEupd files are just a snapshot, and not the latest and greatest. So how to use the latest component sources and example projects without Git?
As with any software drivers: they are never perfect. The same applies to the Processor Expert components delivered in CodeWarrior for MCU10 or the DriverSuite too. That’s why I have created many more components which are available on GitHub here. All these components are using other components to reach the hardware. But what if a functionality is not exposed through the low-level component? Or what if I want direct access to the hardware? Up to now I had to choose either the Processor Expert way, or to do it in the ‘traditional’ way using an SDK like CMSIS or vendor supplied header files.
With MCU10.4, I noticed that there is another way: PDD (Physical Device Driver).
The MCUonEclipse GitHub repository is great for everyone which is familiar with Git or GitHub. Prevsiouly I was hosting my Processor Expert components on steinerberg.com. Exporting and maintaining the Processor Expert Update Files (*.PEupd) one by one is a lot of effort. GitHub makes things a lot easier, but again: you need to be familiar with it. And not everyone is ‘gitting’ yet. To help the rest of the world (the non-Gitter), I have now published Processor Expert update files for all the components in the repository, so it is easier to install them.
What was missing in the FatFsMemSDHC component presented here is support for a ‘write protection’ pin. Well, that write protection is not present on micro-SD cards, and on normal SD cards it is a simple plastic thing with no real hardware meaning: it is all up to the software to respect it. While my other SD card components have support for such a write protection detection, it was lacking for the FatFsMemSDHC (for Kinetis) component. Time to fix this!
SD Card Lock: an SD-Card, a micro-SD Card and a micro-SD card adapter, both with write-enabled