I can use blhost to upload my application onto the KL27Z over USB but I want to be able to do it over SPI.
I know the blhost user guide says:
"The blhost and Kinetis Updater applications do not support firmware download over I2C and SPI
peripherals. Special hardware and host tools are required to support I2C and SPI firmware down load."
What special hardware and host tools are required to support SPI download? How do I do it?