148 lines
6.1 KiB
Markdown
148 lines
6.1 KiB
Markdown
# Debugging FAQ
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This page details various common questions people have about troubleshooting their keyboards.
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# Debug Console
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## `hid_listen` Can't Recognize Device
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When debug console of your device is not ready you will see like this:
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```
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Waiting for device:.........
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```
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once the device is plugged in then *hid_listen* finds it you will get this message:
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```
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Waiting for new device:.........................
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Listening:
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```
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If you can't get this 'Listening:' message try building with `CONSOLE_ENABLE=yes` in [Makefile]
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You may need privilege to access the device on OS like Linux.
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- try `sudo hid_listen`
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## Can't Get Message on Console
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Check:
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- *hid_listen* finds your device. See above.
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- Enable debug with pressing **Magic**+d. See [Magic Commands](https://github.com/tmk/tmk_keyboard#magic-commands).
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- set `debug_enable=true`. See [Testing and Debugging](newbs_testing_debugging.md#debugging)
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- try using 'print' function instead of debug print. See **common/print.h**.
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- disconnect other devices with console function. See [Issue #97](https://github.com/tmk/tmk_keyboard/issues/97).
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***
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# Miscellaneous
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## Safety Considerations
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You probably don't want to "brick" your keyboard, making it impossible
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to rewrite firmware onto it. Here are some of the parameters to show
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what things are (and likely aren't) too risky.
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- If your keyboard map does not include RESET, then, to get into DFU
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mode, you will need to press the reset button on the PCB, which
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requires unscrewing the bottom.
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- Messing with tmk_core / common files might make the keyboard
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inoperable
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- Too large a .hex file is trouble; `make dfu` will erase the block,
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test the size (oops, wrong order!), which errors out, failing to
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flash the keyboard, leaving it in DFU mode.
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- To this end, note that the maximum .hex file size on Planck is
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7000h (28672 decimal)
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```
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Linking: .build/planck_rev4_cbbrowne.elf [OK]
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Creating load file for Flash: .build/planck_rev4_cbbrowne.hex [OK]
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Size after:
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text data bss dec hex filename
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0 22396 0 22396 577c planck_rev4_cbbrowne.hex
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```
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- The above file is of size 22396/577ch, which is less than
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28672/7000h
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- As long as you have a suitable alternative .hex file around, you
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can retry, loading that one
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- Some of the options you might specify in your keyboard's Makefile
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consume extra memory; watch out for BOOTMAGIC_ENABLE,
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MOUSEKEY_ENABLE, EXTRAKEY_ENABLE, CONSOLE_ENABLE, API_SYSEX_ENABLE
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- DFU tools do /not/ allow you to write into the bootloader (unless
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you throw in extra fruit salad of options), so there is little risk
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there.
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- EEPROM has around a 100000 write cycle. You shouldn't rewrite the
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firmware repeatedly and continually; that'll burn the EEPROM
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eventually.
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## NKRO Doesn't work
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First you have to compile firmware with this build option `NKRO_ENABLE` in **Makefile**.
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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.
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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.
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https://github.com/tmk/tmk_keyboard#boot-magic-configuration---virtual-dip-switch
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## TrackPoint Needs Reset Circuit (PS/2 Mouse Support)
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Without reset circuit you will have inconsistent result due to improper initialize of the hardware. See circuit schematic of TPM754.
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- http://geekhack.org/index.php?topic=50176.msg1127447#msg1127447
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- http://www.mikrocontroller.net/attachment/52583/tpm754.pdf
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## Can't Read Column of Matrix Beyond 16
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Use `1UL<<16` instead of `1<<16` in `read_cols()` in [matrix.h] when your columns goes beyond 16.
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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`.
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http://deskthority.net/workshop-f7/rebuilding-and-redesigning-a-classic-thinkpad-keyboard-t6181-60.html#p146279
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## Special Extra Key Doesn't Work (System, Audio Control Keys)
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You need to define `EXTRAKEY_ENABLE` in `rules.mk` to use them in QMK.
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```
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EXTRAKEY_ENABLE = yes # Audio control and System control
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```
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## Wakeup from Sleep Doesn't Work
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In Windows check `Allow this device to wake the computer` setting in Power **Management property** tab of **Device Manager**. Also check BIOS setting.
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Pressing any key during sleep should wake host.
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## Using Arduino?
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**Note that Arduino pin naming is different from actual chip.** For example, Arduino pin `D0` is not `PD0`. Check circuit with its schematics yourself.
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- http://arduino.cc/en/uploads/Main/arduino-leonardo-schematic_3b.pdf
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- http://arduino.cc/en/uploads/Main/arduino-micro-schematic.pdf
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Arduino Leonardo and micro have **ATMega32U4** and can be used for TMK, though Arduino bootloader may be a problem.
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## Enabling JTAG
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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.
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If you would like to keep JTAG enabled, just add the following to your `config.h`:
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```c
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#define NO_JTAG_DISABLE
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```
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## USB 3 Compatibility
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I heard some people have a problem with USB 3 port, try USB 2 port.
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## Mac Compatibility
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### OS X 10.11 and Hub
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https://geekhack.org/index.php?topic=14290.msg1884034#msg1884034
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## Problem on BIOS (UEFI)/Resume (Sleep & Wake)/Power Cycles
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Some people reported their keyboard stops working on BIOS and/or after resume(power cycles).
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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.
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https://github.com/tmk/tmk_keyboard/issues/266
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https://geekhack.org/index.php?topic=41989.msg1967778#msg1967778
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