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keychron_qmk_firmware/docs/compatible_microcontrollers.md
fauxpark 5414ff709f [Doc] Tidy up compatible MCUs docs (#7295) 
* Tidy up compatible MCUs docs

* ARM chips should have USB

* 32KB soft lower limit applies to ARM as well

* NXP is the manufacturer name, not Kinetis

* Units
2019-11-08 18:34:25 -08:00

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Compatible Microcontrollers

QMK runs on any USB-capable AVR or ARM microcontroller with enough flash space - generally 32kB or more, though it will just squeeze into 16kB with most features disabled.

Atmel AVR

The following use LUFA as the USB stack:

Certain MCUs which do not have native USB will use V-USB instead:

ARM

You can also use any ARM chip with USB that ChibiOS supports. Most have plenty of flash. Known to work are:

STMicroelectronics (STM32)

NXP (Kinetis)

Atmel ATSAM

There is limited support for one of Atmel's ATSAM microcontrollers, that being the ATSAMD51J18A used by the Massdrop keyboards.