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@ -1,10 +1,16 @@
# Frequently Asked Questions
## What is QMK?
## General
### What is QMK?
[QMK](https://github.com/qmk), short for Quantum Mechanical Keyboard, is a group of people building tools for custom keyboards. We started with the [QMK firmware](https://github.com/qmk/qmk_firmware), a heavily modified fork of [TMK](https://github.com/tmk/tmk_keyboard).
## What Differences Are There Between QMK and TMK?
### Why the name Quantum?
<!-- FIXME -->
### What Differences Are There Between QMK and TMK?
TMK was originally designed and implemented by [Jun Wako](https://github.com/tmk). QMK started as [Jack Humbert's](https://github.com/jackhumbert) fork of TMK for the Planck. After a while Jack's fork had diverged quite a bit from TMK, and in 2015 Jack decided to rename his fork to QMK.
@ -14,8 +20,22 @@ From a project and community management standpoint TMK maintains all the officia
Both approaches have their merits and their drawbacks, and code flows freely between TMK and QMK when it makes sense.
# Debug Console
## hid_listen can't recognize device
# Building
## Windows
### I'm on Windows Vista, 7, or 8, how do I setup my build environment?
Follow the build instructions to [install MHV AVR Tools](https://docs.qmk.fm/build_environment_setup.html#windows-vista-and-later).
### I'm on Windows 10 without the Creators Update. Do I have to install it?
No, but if you don't install the creators update you will not be able to build and flash with a single command. You will be able to build but to flash you will have to use a separate program, such as [QMK Flasher](https://github.com/qmk/qmk_flasher).
# Troubleshooting
## Debug Console
### hid_listen can't recognize device
When debug console of your device is not ready you will see like this:
```
@ -34,7 +54,7 @@ If you can't get this 'Listening:' message try building with `CONSOLE_ENABLE=yes
You may need privilege to access the device on OS like Linux.
- try `sudo hid_listen`
## Can't get message on console
### Can't get message on console
Check:
- *hid_listen* finds your device. See above.
- Enable debug with pressing **Magic**+d. See [Magic Commands](https://github.com/tmk/tmk_keyboard#magic-commands).
@ -42,7 +62,7 @@ Check:
- try using 'print' function instead of debug print. See **common/print.h**.
- disconnect other devices with console function. See [Issue #97](https://github.com/tmk/tmk_keyboard/issues/97).
## Linux or UNIX like system requires Super User privilege
### Linux or UNIX like system requires Super User privilege
Just use 'sudo' to execute *hid_listen* with privilege.
```
$ sudo hid_listen
@ -56,10 +76,9 @@ File: /etc/udev/rules.d/52-tmk-keyboard.rules(in case of Ubuntu)
SUBSYSTEMS=="usb", ATTRS{idVendor}=="feed", MODE:="0666"
```
***
## Software Issues
# Miscellaneous
## NKRO Doesn't work
### NKRO Doesn't work
First you have to compile frimware with this build option `NKRO_ENABLE` in **Makefile**.
Try `Magic` **N** command(`LShift+RShift+N` by default) when **NKRO** still doesn't work. You can use this command to toggle between **NKRO** and **6KRO** mode temporarily. In some situations **NKRO** doesn't work you need to switch to **6KRO** mode, in particular when you are in BIOS.
@ -68,15 +87,7 @@ If your firmeare built with `BOOTMAGIC_ENABLE` you need to turn its switch on by
https://github.com/tmk/tmk_keyboard#boot-magic-configuration---virtual-dip-switch
## TrackPoint needs reset circuit(PS/2 mouse support)
Without reset circuit you will have inconsistent reuslt due to improper initialize of the hardware. See circuit schematic of TPM754.
- http://geekhack.org/index.php?topic=50176.msg1127447#msg1127447
- http://www.mikrocontroller.net/attachment/52583/tpm754.pdf
## Can't read column of matrix beyond 16
### Can't read column of matrix beyond 16
Use `1UL<<16` instead of `1<<16` in `read_cols()` in [matrix.h] when your columns goes beyond 16.
In C `1` means one of [int] type which is [16bit] in case of AVR so you can't shift left more than 15. You will get unexpected zero when you say `1<<16`. You have to use [unsigned long] type with `1UL`.
@ -84,16 +95,16 @@ In C `1` means one of [int] type which is [16bit] in case of AVR so you can't sh
http://deskthority.net/workshop-f7/rebuilding-and-redesigning-a-classic-thinkpad-keyboard-t6181-60.html#p146279
## Bootloader jump doesn't work
### Bootloader jump doesn't work
Properly configure bootloader size in **Makefile**. With wrong section size bootloader won't probably start with **Magic command** and **Boot Magic**.
```
# Size of Bootloaders in bytes:
# Atmel DFU loader(ATmega32U4) 4096
# Atmel DFU loader(AT90USB128) 8192
# LUFA bootloader(ATmega32U4) 4096
# Arduino Caterina(ATmega32U4) 4096
# USBaspLoader(ATmega***) 2048
# Teensy halfKay(ATmega32U4) 512
# Atmel DFU loader(ATmega32U4) 4096
# Atmel DFU loader(AT90USB128) 8192
# LUFA bootloader(ATmega32U4) 4096
# Arduino Caterina(ATmega32U4) 4096
# USBaspLoader(ATmega***) 2048
# Teensy halfKay(ATmega32U4) 512
# Teensy++ halfKay(AT90USB128) 2048
OPT_DEFS += -DBOOTLOADER_SIZE=4096
```
@ -107,14 +118,14 @@ byte Atmel/LUFA(ATMega32u4) byte Atmel(AT90SUB1286)
| | | |
| | | |
| Application | | Application |
| | | |
| | | |
= = = =
| | 32KB-4KB | | 128KB-8KB
0x6000 +---------------+ 0x1E000 +---------------+
| Bootloader | 4KB | Bootloader | 8KB
0x7FFF +---------------+ 0x1FFFF +---------------+
byte Teensy(ATMega32u4) byte Teensy++(AT90SUB1286)
0x0000 +---------------+ 0x00000 +---------------+
| | | |
@ -132,20 +143,28 @@ And see this discussion for further reference.
https://github.com/tmk/tmk_keyboard/issues/179
## Special Extra key doesn't work(System, Audio control keys)
### Special Extra key doesn't work(System, Audio control keys)
You need to define `EXTRAKEY_ENABLE` in `rules.mk` to use them in QMK.
```
EXTRAKEY_ENABLE = yes # Audio control and System control
```
## Wakeup from sleep doesn't work
### Wakeup from sleep doesn't work
In Windows check `Allow this device to wake the computer` setting in Power **Management property** tab of **Device Manager**. Also check BIOS setting.
Pressing any key during sleep should wake host.
## Using Arduino?
## Hardware Issues
### TrackPoint needs reset circuit(PS/2 mouse support)
Without reset circuit you will have inconsistent reuslt due to improper initialize of the hardware. See circuit schematic of TPM754.
- http://geekhack.org/index.php?topic=50176.msg1127447#msg1127447
- http://www.mikrocontroller.net/attachment/52583/tpm754.pdf
### Using Arduino?
**Note that Arduino pin naming is different from actual chip.** For example, Arduino pin `D0` is not `PD0`. Check circuit with its schematics yourself.
@ -154,8 +173,7 @@ Pressing any key during sleep should wake host.
Arduino leonardo and micro have **ATMega32U4** and can be used for TMK, though Arduino bootloader may be a problem.
## Using PF4-7 pins of USB AVR?
### Using PF4-7 pins of USB AVR?
You need to set JTD bit of MCUCR yourself to use PF4-7 as GPIO. Those pins are configured to serve JTAG function by default. MCUs like ATMega*U* or AT90USB* are affeteced with this.
If you are using Teensy this isn't needed. Teensy is shipped with JTAGEN fuse bit unprogrammed to disable the function.
@ -171,12 +189,7 @@ https://github.com/tmk/tmk_keyboard/blob/master/keyboard/hbkb/matrix.c#L67
And read **26.5.1 MCU Control Register – MCUCR** of ATMega32U4 datasheet.
## Adding LED indicators of Lock keys
You need your own LED indicators for CapsLock, ScrollLock and NumLock? See this post.
http://deskthority.net/workshop-f7/tmk-keyboard-firmware-collection-t4478-120.html#p191560
## Program Arduino Micro/Leonardo
### Program Arduino Micro/Leonardo
Push reset button and then run command like this within 8 seconds.
```
@ -188,27 +201,16 @@ Device name will vary depending on your system.
http://arduino.cc/en/Main/ArduinoBoardMicro
https://geekhack.org/index.php?topic=14290.msg1563867#msg1563867
## USB 3 compatibility
I heard some people have a problem with USB 3 port, try USB 2 port.
## Mac compatibility
### OS X 10.11 and Hub
https://geekhack.org/index.php?topic=14290.msg1884034#msg1884034
## Problem on BIOS(UEFI)/Resume(Sleep&Wake)/Power cycles
### Problem on BIOS(UEFI)/Resume(Sleep&Wake)/Power cycles
Some people reported their keyboard stops working on BIOS and/or after resume(power cycles).
As of now root of its cause is not clear but some build options seem to be related. In Makefile try to disable those options like `CONSOLE_ENABLE`, `NKRO_ENABLE`, `SLEEP_LED_ENABLE` and/or others.
As of now root of its cause is not clear but some build options seem to be related. In Makefile try to disable those options like `CONSOLE_ENABLE`, `NKRO_ENABLE`, `SLEEP_LED_ENABLE` and/or others.
https://github.com/tmk/tmk_keyboard/issues/266
https://geekhack.org/index.php?topic=41989.msg1967778#msg1967778
## Flashing Problems
### Can't use dfu-programmer or QMK Flasher to flash on Windows
## FLIP doesn't work
### AtLibUsbDfu.dll not found
Remove current driver and reinstall one FLIP provides from DeviceManager.
http://imgur.com/a/bnwzy
Windows requires a driver to support the keyboard in DFU mode. You can use [QMK Driver Installer](https://github.com/qmk/qmk_driver_installer/releases) to install the necessary drivers.