This page details various common questions people have about troubleshooting their keyboards.
hid_listen
Can't Recognize DeviceWhen debug console of your device is not ready you will see like this:
Waiting for device:.........
once the device is plugged in then hid_listen finds it you will get this message:
Waiting for new device:.........................
Listening:
If you can't get this 'Listening:' message try building with CONSOLE_ENABLE=yes
in [Makefile]
You may need privilege to access the device on OS like Linux.
sudo hid_listen
Check:
debug_enable=true
. See Testing and DebuggingJust use 'sudo' to execute hid_listen with privilege.
$ sudo hid_listen
Or add an udev rule for TMK devices with placing a file in rules directory. The directory may vary on each system.
File: /etc/udev/rules.d/52-tmk-keyboard.rules(in case of Ubuntu)
# tmk keyboard products https://github.com/tmk/tmk_keyboard
SUBSYSTEMS=="usb", ATTRS{idVendor}=="feed", MODE:="0666"
You probably don't want to "brick" your keyboard, making it impossible to rewrite firmware onto it. Here are some of the parameters to show what things are (and likely aren't) too risky.
make dfu
will erase the block,
test the size (oops, wrong order!), which errors out, failing to
flash the keyboard, leaving it in DFU mode.
Linking: .build/planck_rev4_cbbrowne.elf [OK]
Creating load file for Flash: .build/planck_rev4_cbbrowne.hex [OK]
Size after:
text data bss dec hex filename
0 22396 0 22396 577c planck_rev4_cbbrowne.hex
First you have to compile firmware 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.
If your firmware built with BOOTMAGIC_ENABLE
you need to turn its switch on by BootMagic
N command(Space+N
by default). This setting is stored in EEPROM and kept over power cycles.
https://github.com/tmk/tmk_keyboard#boot-magic-configuration---virtual-dip-switch
Without reset circuit you will have inconsistent result due to improper initialize of the hardware. See circuit schematic of TPM754.
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 [16 bit] 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
.
You need to define EXTRAKEY_ENABLE
in rules.mk
to use them in QMK.
EXTRAKEY_ENABLE = yes # Audio control and System control
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.
Note that Arduino pin naming is different from actual chip. For example, Arduino pin D0
is not PD0
. Check circuit with its schematics yourself.
Arduino Leonardo and micro have ATMega32U4 and can be used for TMK, though Arduino bootloader may be a problem.
By default, the JTAG debugging interface is disabled as soon as the keyboard starts up. JTAG-capable MCUs come from the factory with the JTAGEN
fuse set, and it takes over certain pins of the MCU that the board may be using for the switch matrix, LEDs, etc.
If you would like to keep JTAG enabled, just add the following to your config.h
:
#define NO_JTAG_DISABLE
I heard some people have a problem with USB 3 port, try USB 2 port.
https://geekhack.org/index.php?topic=14290.msg1884034#msg1884034
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.
https://github.com/tmk/tmk_keyboard/issues/266 https://geekhack.org/index.php?topic=41989.msg1967778#msg1967778
AtLibUsbDfu.dll
Not FoundRemove current driver and reinstall one FLIP provides from DeviceManager. http://imgur.com/a/bnwzy