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Running the "HID Tests" suite of the USB 3 Command Verifier (USB3CV) tool resulted in the following error: (HID: 3.2.61) The report descriptor returned in response to a GetDescriptor(Report) must be compliant with the HID specification. Byte Number: 37h ( 55d) Data Field: 91 02 Mnemonic: Output Value: (Variable) Errors: Error: LOGICAL MAX MUST be bounded by Report Size The error stems from the fact that logical minimum and maximum are global items, which means that the next item in a report descriptor inherits the value from the previously set value. In this case the status leds item inherited the logical minimum (=0) and maximum (=255) from the keycodes item. As the status leds set a report size of 1 bit, wich can only hold a boolean, it becomes clear that this range would never fit. The fix is straightforward, we just define a appropriate logical maximum (=1), the mismatch is solved and our keyboard now passes the compliance tests. Defining the logical minimum is redundant in this case but is kept to form a logical block.
TMK Keyboard Firmware Core Library
This is a keyboard firmware library with some useful features for Atmel AVR and Cortex-M.
Source code is available here: https://github.com/tmk/tmk_keyboard/tree/master/tmk_core
Updates
2016/02/10
flabbergast's Chibios protocol was merged from https://github.com/flabbergast/tmk_keyboard/tree/chibios. See protocol/chibios/README.md. Chibios protocol supports Cortex-M such as STM32 and Kinetis.
2015/04/22
separated with TMK Keyboard Firmware Collection
Features
These features can be used in your keyboard.
- Multi-layer Keymap - Multiple keyboard layouts with layer switching
- Mouse key - Mouse control with keyboard
- System Control Key - Power Down, Sleep, Wake Up and USB Remote Wake up
- Media Control Key - Volume Down/Up, Mute, Next/Prev track, Play, Stop and etc
- USB NKRO - 248 keys(+ 8 modifiers) simultaneously
- PS/2 mouse support - PS/2 mouse(TrackPoint) as composite device
- User Function - Customizable function of key with writing code
- Macro - Very primitive at this time
- Keyboard Tricks - Oneshot modifier and modifier with tapping feature
- Debug Console - Messages for debug and interaction with firmware
- Virtual DIP Switch - Configurations stored EEPROM(Boot Magic)
- Locking CapsLock - Mechanical switch support for CapsLock
- Breathing Sleep LED - Sleep indicator with charm during USB suspend
- Backlight - Control backlight levels
TMK Keyboard Firmware Collection
Complete firmwares for various keyboards and protocol converters.
https://github.com/tmk/tmk_keyboard
License
GPLv2 or later. Some protocol files are under Modified BSD License. ChibiOS, LUFA and V-USB stack have their own license respectively.
Build Firmware and Program Controller
See doc/build.md.
Start Your Own Project
TBD
Config.h Options
1. USB vendor/product ID and device description
#define VENDOR_ID 0xFEED
#define PRODUCT_ID 0xBEEF
#define MANUFACTURER t.m.k.
#define PRODUCT Macway mod
2. Keyboard matrix configuration
#define MATRIX_ROWS 8
#define MATRIX_COLS 8
#define MATRIX_HAS_GHOST
Architecture
Architecture Diagram
+---------------+---------------+-------------+
| Host | Keyboard | Matrix, LED |
___________ |-----------+-+ +-------------+ | +-----------|
/ /| Keys/Mouse | Protocol |d| | Action | | | Protocol |
/__________/ |<-----------| LUFA |r| | Layer, Tap | | | Matrix |
|.--------.| | LED | V-USB |i| |-------------| | | PS/2,IBM | __________________
|| || |----------->| UART |v| | Keymap | | | | Keys / /_/_/_/_/_/_/_/ /|
|| Host || | Console | |e| | Mousekey | | | |<----------/ /_/_/_/_/_/_/_/ / /
||________||/.<-----------| |r| | Report | | | | Control / /_/_/_/_/_/_/_/ / /
`_========_'/| |---------------------------------------------|-------->/___ /_______/ ___/ /
|_o______o_|/ | Sendchar, Print, Debug, Command, ... | |_________________|/
+---------------------------------------------+ Keyboard
Debugging
Use PJRC's hid_listen to see debug messages. You can use the tool for debug even if firmware use LUFA stack.
You can use xprintf() to display debug info on hid_listen, see common/xprintf.h.
Files and Directories
Top
- common/ - common codes
- protocol/ - keyboard protocol support
- doc/ - documents
- common.mk - Makefile for common
- protocol.mk - Makefile for protocol
- rules.mk - Makefile for build rules
Common
- host.h
- host_driver.h
- keyboard.h
- command.h
- keymap.h
- action.h
- keycode.h
- matrix.h
- led.h
- mousekey.h
- report.h
- debug.h
- print.h
- bootloader.h
- sendchar.h
- timer.h
- util.h
Keyboard Protocols
- lufa/ - LUFA USB stack
- vusb/ - Objective Development V-USB
- ps2.c - PS/2 protocol
- serial_soft.c - Asynchronous Serial protocol implemented by software
Coding Style
- Doesn't use Tab to indent, use 4-spaces instead.