FRDM-KEAZ128Q80

This NXP Freedom 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 NXP web site: FRDM-KEAZ128Q80

To configure the µTasker project for this board simply enable the define FRDM_KEAZ128Q80 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}

FRDM-KEAZ128Q80 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_FRDM-KEAZ128Q80_KBOOT_UART.bin KBOOT compatible UART loader [6.79k] allowing applications to be loaded at link address 0x8000. When operating, the green LED blinks at 5Hz. To force the loader reset the board with the push button SW2 held down. To disable the watchdog reset the board with the push button SW3 held down. This can be loaded using the FRDM-KEAZ128Q80'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.
  • uTaskerV1.4.12_BM_FRDM-KEAZ128Q80_8000.bin KEA128 application with command-line menu on the virtual COM connection (at 115.2kBaud). Low power modes can be set in the application menu and the processor runs at 40MHz [20.4k]. Linked to 0x8000, it can be loaded using the KBOOT PC tool. When the application is running the green LED blinks at 2.5Hz.
  • uTaskerV1.4.12_FRDM-KEAZ128Q80.bin The same KEA128 application as stand-alone software that can be loaded using the FRDM-KEAZ128Q80's USB-MSD boot loader [21.4k].


  • uTaskerSerialBoot_FRDM-KEAZ128Q80_SREC_UART_38400.bin SREC UART loader [8.0k] allowing applications to be loaded at link address 0x8000. When operating, the green LED blinks at 5Hz. To force the loader reset the board with the push button SW2 held down. To disable the watchdog reset the board with the push button SW3 held down. The Baud rate of the UART (on the OpenSDA virtual COM port connection) is 38.4k. This can be loaded using the FRDM-KEAZ128Q80'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.
  • uTaskerV1.4.12_BM_FRDM-KEAZ128Q80_8000.SREC KEA128 application with command-line menu on the virtual COM connection (at 115.2kBaud) [56.1k]. Linked to 0x8000, it can be loaded using the SREC loader. When the application is running the green LED blinks at 2.5Hz.


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µTasker FRDM-KEAZ128Q80 support. Copyright (c) 2004..2016 M.J.Butcher Consulting