I need a Serial Bootloader for the Kinetis K70. IAR is preferred, but I'll take CW or Keil if that is what you have. Thanks!

[johnatkins]

The display board contains the K70 and Touchscreen. It is controlled by another board with another processor which manages the USB ports. We need to update our own firmware by plugging in a USB stick and having this control board send the appropriate s-records to the K70 on the display board, and reflash itself. This is a field firmware upgrade, so we can't use a J-Link or similar flashing device.

[mjbcswitzerland]

Hi John

Serial loaders (USB-HOST [MSD - memory stick],  USB device (VCOM, MSD, Kboot), Modbus serial and TCP, Ethernet web server, I2C slave, SD-card, UART [srec, iHex, Kboot, AN2295]) with or without encryption.
Serial Loader: http://www.utasker.com/docs/uTasker/uTaskerSerialLoader.pdf

for K70
http://www.utasker.com/kinetis/TWR-K70F120M.html

Turn-key (industrially proven over several years) solution projects for IAR, Keil, KDS, MCUXpresso, CodeWarrior, Atollic, Rowley Crossworks, CooCox, Green Hills, GCC, Visual Studio and complete K70 / memory stick / UART (approx. real-time) emulation in VisualStudio for testing, debugging, code reviews, efficient development modifications.

Free Open Source on GitHub (search uTasker) or supported version for professionals (request at links).

Regards

Mark

[victorjimenez]

Hello John,

Please refer the following community post: 

https://community.nxp.com/docs/DOC-102616 

Hope it helps!

Victor.

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