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qmk_firmware/keyboards/converter/usb_usb
History
Jack Humbert 9fdc276260
Updates bootloader settings, adds file size check (#2029) 
* pull fuse settings for bootloader jump

* fix 32a chips

* make automatic bootloader selection optional

* quantify bootloaders

* fixs #164, speeds up dfu reset

* fix for chips w/o usb

* missing an n

* fix bootloader sizes, use words for addresses

* fix bmini, pearl, and [[ issue, make things quiet

* ignore avr errors on arm for now

* update settings for the light

* document bootloader stuff

* add bootloader title
 		7 years ago
..
ble Updates bootloader settings, adds file size check (#2029) 7 years ago
hasu restructure converters (#1825) 7 years ago
keymaps restructure converters (#1825) 7 years ago
pro_micro restructure converters (#1825) 7 years ago
README.md restructure converters (#1825) 7 years ago
config.h restructure converters (#1825) 7 years ago
custom_matrix.cpp restructure converters (#1825) 7 years ago
keymap.c
…
main.c
…
matrix.c wow, it builds! added empty matrix.c and moved custom matrix code to custom_matrix.cpp 7 years ago
rules.mk Updates bootloader settings, adds file size check (#2029) 7 years ago
usb_usb.c restructure converters (#1825) 7 years ago
usb_usb.h
…

README.md

USB to USB keyboard protocol converter

A small device to connect between your USB keyboard and your PC that makes (almost) every keyboard fully programmable. Original code from the TMK firmware. Ported to QMK by Balz Guenat.

Keyboard Maintainer: Balz Guenat Hardware Supported: Hasu's USB-USB converter, Pro Micro + USB Host Shield, maybe more Hardware Availability: GH thread, self-built

Make example for this keyboard (after setting up your build environment):

make converter/usb_usb:default

See build environment setup then the make instructions for more information.

Note that you have to choose the right hardware variant as your subproject, otherwise you will probably have issues.

Troubleshooting & Known Issues

If something doesn't work, it's probably because of the CPU clock. Be sure to select the correct subproject (the middle part of the make argument) according to your hardware. If you are sure you have this correct, try changeing the default in usb_usb/rules.mk or overriding the value in the rules.mk of your keymap.

The Pro Micro variant uses a 3.3V Pro Micro and thus runs at 8MHz, hence the following line in usb_usb/pro_micro/rules.mk: F_CPU = 8000000 The converter sold by Hasu runs at 16MHz and so the corresponding line in usb_usb/hasu/rules.mk is: F_CPU = 16000000

Getting the Hardware

There are two options to get a converter: You can buy one from Hasu or build one yourself.

Buy a Converter

You can buy a fully assembled converter from me here: https://geekhack.org/index.php?topic=69169.0

Build one yourself using Arduino Leonardo + Circuit@Home USB Host Shield 2.0

Buying Arduino Leonardo and USB Host Shield 2.0(from Circuit@home) will be better, you won't need even soldering iron. http://arduino.cc/en/Main/ArduinoBoardLeonardo https://www.circuitsathome.com/arduino_usb_host_shield_projects/

Other compatible boards like Arduino's Shield will also work well but I think Sparkfun's needs to be modified. http://arduino.cc/en/Main/ArduinoUSBHostShield https://www.sparkfun.com/products/9947

Also Pro Micro 3.3V(not Mini) or Teensy with mini host shield will work with some fixes on signal/power routing. Build guide https://www.circuitsathome.com/arduino_usb_host_shield_projects/ https://www.sparkfun.com/products/12587 https://www.pjrc.com/teensy/td_libs_USBHostShield.html

Limitations

Only supports 'HID Boot protocol'. Note that the converter can host only USB "boot protocol" keyboard(6KRO), not NKRO, it is possible to support NKRO keyboard but you will need to write HID report parser for that. Every NKRO keyboard can have different HID report and it is difficult to support all kind of NKRO keyboards in the market.

Resources

Hasu's main thread for the converter https://geekhack.org/index.php?topic=69169.0 Build guide for the Pro Micro variant https://geekhack.org/index.php?topic=80421.0 Original TMK version of the converter https://github.com/tmk/tmk_keyboard/tree/master/converter/usb_usb USB Host Shield 2.0 https://www.circuitsathome.com/arduino_usb_host_shield_projects/ USB Host Shield 2.0 source https://github.com/felis/USB_Host_Shield_2.0 Arduino USB Host Shield (with bootst converter) http://arduino.cc/en/Main/ArduinoUSBHostShield Arduino source https://github.com/arduino/Arduino Initial release of TMK USB-USB converter https://geekhack.org/index.php?topic=33057.msg653549#msg653549 http://deskthority.net/workshop-f7/is-remapping-a-usb-keyboard-using-teensy-possible-t2841-30.html#p74854 Arduino-based hardware keyboard remapper - Colemak forum http://forum.colemak.com/viewtopic.php?id=1561 Teensy + Host Shield http://www.pjrc.com/teensy/td_libs_USBHostShield.html