TRK-KEA128

This Freescale StarterTRAK board is based on the SKEAZ128MLK4 which is a 48MHz device from the ultra-reliable EA automotive microcontroller family with Cortex-M0+ core. This KEA128 device has 128k Flash and 16k SRAM and is in an 80 pin LQFP package, whereby the KEA128 is also available in 64 pin LQFP and its memory ranges from 64k..128k Flash and 8k..16k SRAM. There is an 8MHz crystal on the board for clocking the part.

Full details and documentation for this board can be obtained from the Freescale web site: TRK-KEA128

To configure the µTasker project for this board simply enable the define TRK_KEA128 in the project's config.h file. The compiler needs to be set to build for Cortex m0+ (and not Cortex M4) and the linker script KEA_128_16.ld should be selected [KEA_128_16_BM.ld for downloadable version] {the linker script extension may vary for different compilers, whereby *.ld is valid for GCC}

TRK-KEA128 Binaries

Here are some binary files that can be loaded to the board. These were built using the µTasker applications (serial loader and V1.4 application) and can be simply generated using the supported compilers/IDEs [these were built using GCC], built using different configuration options or modified to suit specific requirements or hardware derived from this board :

  • uTaskerSerialBoot_TRK-KEA128_KBOOT_UART.bin KBOOT compatible UART loader [6.85k] allowing applications to be loaded at link address 0x8000. When operating, the first blue LED blinks at 5Hz. To force the loader reset the board with the push button SW1 held down. To disable the watchdog reset the board with the push button SW2 held down. This can be loaded using the TRK-KEA128's USB-MSD (OpenSDA) boot loader. Note that the loader limits application sizes to 40k - it can be built without limits using the µTasker project.
  • uTaskerV1.4.8_BM_TRK-KEA128_8000.bin KEA128 application with command-line menu on the virtual COM connection. Connector pins J3-4 and J7-6 are configured as KBI interrupts (falling edge sensitive) and there is a message on the UART output on each edge. Low power modes can be set in the application menu and the processor runs at 40MHz [20.5k]. Linked to 0x8000, it can be loaded using the KBOOT PC tool. When the application is running the first blue LED blinks at 2.5Hz (the second blue LED indicates the amount of time the device is not in a low power mode during the operation).
  • uTaskerV1.4.8_TRK-KEA128.bin The same KEA128 application as stand-alone software that can be loaded using the TRK-KEA128's USB-MSD boot loader [21.5k].


  • uTaskerSerialBoot_TRK-KEA128_SREC_UART_38400.bin SREC UART loader [7.7k] allowing applications to be loaded at link address 0x8000. When operating, the first blue LED blinks at 5Hz. To force the loader reset the board with the push button SW1 held down. To disable the watchdog reset the board with the push button SW2 held down. The Baud rate of the UART (on the OpenSDA virtual COM port connection) is 38.4k. This can be loaded using the TRK-KEA128's USB-MSD (OpenSDA) boot loader. Note that the loader limits application sizes to 40k - it can be built without limits using the µTasker project.
  • uTaskerV1.4.10_BM_TRK-KEA128_8000.SREC KEA128 application with command-line menu on the virtual COM connection (at 38.4kBaud) [51.5k]. Linked to 0x8000, it can be loaded using the SREC loader. When the application is running the first blue LED blinks at 2.5Hz.


Return to the Kinetis landing page


µTasker TRK-KEA128 support. Copyright (c) 2004..2015 M.J.Butcher Consulting