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- USB HID protocol
- ================
- Host side of USB HID keyboard protocol implementation.
- Only standard HID Boot mode is supported at this time. This means most of normal keyboards are supported while proprietary >6KRO and NKRO is not.
-
- Third party Libraries
- ---------------------
- USB_Host_Shield_2.0
- Circuits@Home repository is git-submoduled. Do git submodule init & update to get the content.
- https://github.com/felis/USB_Host_Shield_2.0
-
- arduino-1.0.1
- Arduino files copied from:
- https://github.com/arduino/Arduino/hardware/arduino/{cores,variants}
-
-
- Test build
- ----------
- In test directory;
- $ make
- $ DEV=/dev/ttyACM0 make program
-
- You can see HID keyboard reports on debug output.
-
-
- Restriction and Bug
- -------------------
- Not supported/confirmed yet.
- Hub, suspend, keyboard LED
-
- Switching power on VBUS:
- To power reset device.
- http://www.circuitsathome.com/camera-control/simulating-cable-disconnect-on-usb-host-shield-2-0
- This is needed for a device which are not initilized with 'USB Bus Reset'(long SE0)
-
- Can't bus-reset a keyboard which already attached on bus properly.
- Slow start up of Leonardo's bootloader causes this?
- Need to unplug/plug a keyboard after firmware starts up.
- MAX3421E doesn't work SAMPLEBUS well to know whether device connected or not.
-
- Keyboard with other endpoints than boot keyboard may go wrong.
- On my keyboard with mouse key the converter locks up when using mouse key function.
-
- Can't compile on Windows filesystem.
- On Linux no problem.
- Windows doesn't know difference between common/print.h and arduino/Print.h.
- Change file name common/print.h to console.h ?
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