diff --git a/docs/FAQ.md b/docs/FAQ.md index 417efad48..0636d8b54 100644 --- a/docs/FAQ.md +++ b/docs/FAQ.md @@ -1,238 +1,238 @@ -## READ FIRST -- **README** of top directory : https://github.com/tmk/tmk_keyboard/blob/master/README.md -- **README** of target project(keyboard/converter) directory. - -Note that you'll need to read **both**. - - -# Build -- [[FAQ/Build]] - - -# Keymap -- [[FAQ/Keymap]] - - -# Debug Console -## hid_listen can't recognize device -When debug console of your device is not ready you will see like this: - - Waiting for device:......... - -once the device is pluged in then *hid_listen* finds it you will get this message: - - Waiting for new device:......................... - Listening: - -Check if you can't get this 'Listening:' message: -- build with `CONSOLE_ENABLE=yes` in **Makefile**. - -You may need privilege to access the device on OS like Linux. -- try `sudo hid_listen` - -## 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). -- set `debug_enable=true` usually in `matrix_init()` in **matrix.c**. -- 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 -Just 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" -``` - -*** - -# Miscellaneous -## 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. - -If your firmeare 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 keeped over power cycles. - -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 -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`. - -http://deskthority.net/workshop-f7/rebuilding-and-redesigning-a-classic-thinkpad-keyboard-t6181-60.html#p146279 - - - -## Pull-up Resistor -In some case converters needed to have pull-up resistors to work correctly. Place the resistor between VCC and signal line in parallel. - -For example: -``` -Keyboard Conveter - ,------. -5V------+------|VCC | - | | | - R | | - | | | -Signal--+------|PD0 | - | | -GND------------|GND | - `------' -R: 1K Ohm resistor -``` - -https://github.com/tmk/tmk_keyboard/issues/71 - - -## Arduino Micro's pin naming is confusing -Note that Arduino Micro PCB marking is different from real AVR port name. D0 of Arduino Micro is not PD0, PD0 is D3. Check schematic yourself. -http://arduino.cc/en/uploads/Main/arduino-micro-schematic.pdf - - - -## 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 -# Teensy++ halfKay(AT90USB128) 2048 -OPT_DEFS += -DBOOTLOADER_SIZE=4096 -``` -AVR Boot section size are defined by setting **BOOTSZ** fuse in fact. Consult with your MCU datasheet. -Note that **Word**(2 bytes) size and address are used in datasheet while TMK uses **Byte**. - -AVR Boot section is located at end of Flash memory like the followings. -``` -byte Atmel/LUFA(ATMega32u4) byte Atmel(AT90SUB1286) -0x0000 +---------------+ 0x00000 +---------------+ - | | | | - | | | | - | Application | | Application | - | | | | - = = = = - | | 32KB-4KB | | 128KB-8KB -0x6000 +---------------+ 0x1E000 +---------------+ - | Bootloader | 4KB | Bootloader | 8KB -0x7FFF +---------------+ 0x1FFFF +---------------+ - - -byte Teensy(ATMega32u4) byte Teensy++(AT90SUB1286) -0x0000 +---------------+ 0x00000 +---------------+ - | | | | - | | | | - | Application | | Application | - | | | | - = = = = - | | 32KB-512B | | 128KB-2KB -0x7E00 +---------------+ 0x1FC00 +---------------+ - | Bootloader | 512B | Bootloader | 2KB -0x7FFF +---------------+ 0x1FFFF +---------------+ -``` - -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) -You need to define `EXTRAKEY_ENABLE` in **makefile** to use them in TMK. -``` -EXTRAKEY_ENABLE = yes # Audio control and System control -``` -http://deskthority.net/workshop-f7/tmk-keyboard-firmware-collection-t4478-60.html#p157919 - - -## 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? -**Note that Arduino pin naming is different from actual chip.** For example, Arduino pin `D0` is not `PD0`. Check circuit with its schematics yourself. - -- http://arduino.cc/en/uploads/Main/arduino-leonardo-schematic_3b.pdf -- http://arduino.cc/en/uploads/Main/arduino-micro-schematic.pdf - -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? -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. - -See this code. -``` - // JTAG disable for PORT F. write JTD bit twice within four cycles. - MCUCR |= (1<