McuOnEclipse Components: 05-July-2015 Release

I know: A new McuOnEclipse Processor Expert components release was long overdue. But I have been extremely busy in the last months, but now the university semester is over, and I have finally some spare time to catch up on a lot of things. So here we go: there is a new component release available on SourceForge (https://sourceforge.net/projects/mcuoneclipse/files/PEx%20Components/): Components 2015-07-05.zip

McuOneEclipse Components on SourceForge

McuOneEclipse Components on SourceForge

Continue reading

How to Reset an ARM Cortex-M with Software

There are cases when I need to do a reset of the device by software. For example I have loaded the application image with the bootloader, and then I need to perform a reset of the microcontroller to do a restart. As a human user I can press the reset button on the board. But how to do this from the software and application running on the board, without user manual intervention? Or if I simply want to reset the system for whatever reason?

Performing a Software System Reset with Kinetis Design Studio
Performing a Software System Reset with Kinetis Design Studio
Continue reading

UART with the FRDM-KL02Z Board

In my classes I’m mainly using the Freescale FRDM-KL25Z board, as it provides the best value for the money, and 128 kByte FLASH with 16 kByte of RAM is enough for many smaller projects. I do have as well the FRDM-KL02Z Board (32 KByte FLASH, 4 KByte of RAM) which is an inexpensive board to evaluate the smaller KL02Z microcontroller. Because someone reported a problem not being able to use the UART over OpenSDA/USB-to-CDC bridge, I have created a demo project which communicates with a console on the host.

FRDM-KL02Z Board

FRDM-KL02Z Board

Continue reading

USB CDC with the Teensy 3.1 Board

For a project I want to use the Teensy 3.1 board (see “Hacking the Teensy V3.1 for SWD Debugging“) in USB CDC mode: that way the Teensy board can connect to the host and exchange data or attach a console to the Teensy board: that way I can connect the Teensy over USB to the host use the USB as communication interface:

Teensy with Octo Board

Teensy with Octo WS2811 Board

Continue reading

Freescale Processor Expert Survey

Frequent readers of this blog know: I’m using Processor Expert in most of my projects with CodeWarrior, Driver Suite or Kinetis Design Studio. With the move of Freescale to Kinetis Design Studio and the Kinetis SDK with Processor Expert, there is an opportunity for our voice to be heard in a survey Freescale now runs about configuration tools and Processor Expert.

Processor Expert

Processor Expert

Happy Surveying 🙂

Sensirion SHT11 Temperature and Humidity Sensor on a MikroElektronika Click Board

In one of my earlier posts (“Using the DHT11/DHT22 Temperature/Humidity Sensor with a FRDM Board“) I’m using the DHT11/DHT22 temperature/humidity sensors with the FRDM-KL25Z board. These sensors are very inexpensive, but have limited measurement range and accuracy. As pointed out by a reader of that article, Sensirion (a Swiss company :-)) has good sensors too, and I decided I would like to try the SHT11 sensor:

  • 0-100% Relative Humidity
  • +/- 3% Relative Humidity accuracy
  • -40 – +125°C
  • 2.4 – 5.5V supply voltage

SHT11 Sensor

SHT11 Sensor

Continue reading

Using the DHT11/DHT22 Temperature/Humidity Sensor with a FRDM Board

For a home automation project I need to know the room temperature and humidity percentage of the room air. Adafruit has an inexpensive DHT11 sensor from http://www.aosong.com which I decided to use for that project.

Test Setup for DHT11 Sensor

Test Setup for DHT11 Sensor

Continue reading

McuOnEclipse Components: 22-Mar-2015 Release

There is a new release of the McuOnEclipse components available on SourceForge, with the following main changes:

  1. Shell: Fixed and improved history handling.
  2. MinIni: Option to select local/stack or global memory for buffers
  3. FreeRTOS: Ability to use the tick counter instead of dedicated timer for performance measurement.
  4. FSL_USB_Stack: Added deinitialization for USB stack.
  5. FatFsMemSDHC: added custom card detection and write protection pin handling.
  6. Multiple Bug Fixes

SourceForge McuOnEclipse

SourceForge McuOnEclipse

Continue reading

Using Kinetis Design Studio with IAR Embedded Workbench IDE

For everyone who wants to combine the power of Eclipse and Processor Expert with the IAR Embedded Workbench IDE, here is how to get them working side by side:KDS with IAR Continue reading

McuOnEclipse Components: 03-Feb-2015 Release

It has been a while since the last version, but finally there is a new release available on SourceForge, with the following highlights:

  • FreeRTOS V8.2.0 with task notification
  • New VS1053 component to play MP3 and MIDI data/files
  • Shell with command history support
  • Percepio Trace V2.7.0 for FreeRTOS

Components Release

Components Release

Continue reading