I've read some informations about bootloader on Kinetis uC(K80 or K82 for example) but i can't still fully understand it so i got some questions about it.
How do you get into bootloader mode?
Is bootloader always present on factory new chips?
Can be UART0/1/2 used to program onboard flash with my code?(in bootloader mode)
Maybe i'm looking at wrong thing but i want to flash my custom board not only using SWD programmer but in the future using simple serial-to-usb(is it possible at all?)