* https://en.wikipedia.org/wiki/Mbed#
    * https://github.com/ARMmbed/mbed-os/blob/master/platform/include/platform/mbed_version.h
    * https://os.mbed.com/users/mbed_official/code/mbed/
  * https://ide.mbed.com/compiler/#nav:/mbed-os-example-blinky;# MbeD NxP


  * https://os.mbed.com/docs/mbed-os/v6.2/apis/ethernet.html
  * https://os.mbed.com/docs/mbed-os/v6.2/apis/usbkeyboard.html


  * https://os.mbed.com/teams/FRDM-K64F-Code-Share/code/frdm_USB-HID-Mouse-Keyboard_auto/# NxP
    * https://os.mbed.com/handbook/USBKeyboard#
    * https://os.mbed.com/handbook/USBDevice#
    * https://os.mbed.com/questions/69150/FRDM-K64F-USB-device-doesnt-work-since-m/#

<code>
[12289.393162] usb 2-1.3: new full-speed USB device number 36 using ehci-pci
[12289.503687] usb 2-1.3: New USB device found, idVendor=1235, idProduct=0050, bcdDevice= 0.01
[12289.503691] usb 2-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[12289.503694] usb 2-1.3: Product: HID DEVICE
[12289.503696] usb 2-1.3: Manufacturer: mbed.org
[12289.503699] usb 2-1.3: SerialNumber: 0123456789
[12289.506232] usbhid 2-1.3:1.0: can't add hid device: -32
[12289.506261] usbhid: probe of 2-1.3:1.0 failed with error -32
root@cis:/home/rzr# evtest 
</code>


==== keyboard ====

  * https://os.mbed.com/docs/mbed-os/v6.4/feature-hal-spec-spi-doxy/class_u_s_b_keyboard.html#details
  * https://github.com/ARMmbed/mbed-os/blob/c6094f7b36dc0e90a6a7271870333fbba475286c/drivers/usb/include/usb/USBKeyboard.h
  * https://github.com/ARMmbed/mbed-os/tree/c6094f7b36dc0e90a6a7271870333fbba475286c/drivers/usb/source# UsB
  * https://os.mbed.com/questions/87610/question-about-keyboard/# 
  * https://os.mbed.com/questions/767/Using-an-USB-Keyboard/


==== mouse ====

  * https://os.mbed.com/docs/mbed-os/v6.4/mbed-os-api-doxy/_u_s_b_mouse_8h_source.html
===== NXP =====

  * https://os.mbed.com/teams/NXP/code/Hello_FXOS8700Q/pull-request/1
  * https://os.mbed.com/docs/mbed-os/v5.13/feature-hal-spec-spi-doxy/class_u_s_b_keyboard.html#
  * https://os.mbed.com/docs/mbed-os/v6.4/apis/usbkeyboard.html


  * https://os.mbed.com/users/JimCarver/code/Hello_FXOS8700Q/
  * https://os.mbed.com/teams/components/code/MotionSensor/#
  * https://os.mbed.com/teams/FRDM-K64F-Code-Share/code/frdm_USB-HID-Mouse-Keyboard_auto//file/92846b9895f1/main.cpp/#
  * https://os.mbed.com/teams/NXP/code/Hello_FXOS8700Q/file/02bfeec82bc1/main.cpp/
  * https://os.mbed.com/users/mbed_official/code/USBDevice/#

https://os.mbed.com/teams/FRDM-K64F-Code-Share/code/HomeAutomation//file/21ff089ca074/main.cpp/

===== REFERENCE =====

  * https://os.mbed.com/docs/mbed-os/v6.2/program-setup/serial-communication.html# MBeD
  * https://os.mbed.com/docs/mbed-os/v6.2/apis/i2c.html


 
@TaG: McU RtOs ArM NxP