We are currently developing using a TWR-K64F-120M Tower Module with a view to use a K64 processor in our own board.
Can you confirm what firmware, if any, is pre-programmed into the device from the factory?
In the Kinetis Bootloader Manual it states the following:
All future Kinetis devices will arrive with a ROM containing the Kinetis bootloader, while others will arrive pre-programmed from the factory with a one-time-use serial flashloader.
Reading the forum and applications notes, however, do not mention that this is the case. Calcification would be much appreciated.