Ingerniated2017-05-10 22:50:42
Ingerniated, 2017-05-10 22:50:42

4 usb pins and programming what part of the section in electronics?

Brothers, please tell me a book or an article about the programming process and why more than 4 pins were required before, but now 4 will do to program the MK, and how the process itself works.

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Alexander, 2017-05-10

Microcontrollers are becoming more complex - they are overgrown with built-in hardware implementations of interfaces, the division of flash memory into a bootloader and a main program.
Now the microcontroller flashes itself (bootloader) via a serial interface, earlier almost direct recording of the built-in memory was used during programming - via a parallel interface - hence a bunch of wires.

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