mirror of
https://github.com/openstenoproject/qmk
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91bfbb6256
* add note about how to install rev6 (dfu-util) * include instructions on installing dfu-util on macOS
130 lines
6.3 KiB
Markdown
130 lines
6.3 KiB
Markdown
# Frequently Asked Build Questions
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This page covers questions about building QMK. If you haven't yet done so, you should read the [Build Environment Setup](getting_started_build_tools.md) and [Make Instructions](getting_started_make_guide.md) guides.
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## Can't Program on Linux
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You will need proper permissions to operate a device. For Linux users, see the instructions regarding `udev` rules, below. If you have issues with `udev`, a work-around is to use the `sudo` command. If you are not familiar with this command, check its manual with `man sudo` or [see this webpage](https://linux.die.net/man/8/sudo).
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An example of using `sudo`, when your controller is ATMega32u4:
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$ sudo dfu-programmer atmega32u4 erase --force
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$ sudo dfu-programmer atmega32u4 flash your.hex
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$ sudo dfu-programmer atmega32u4 reset
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or just:
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$ sudo make <keyboard>:<keymap>:dfu
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Note that running `make` with `sudo` is generally *not* a good idea, and you should use one of the former methods, if possible.
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### Linux `udev` Rules
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On Linux, you'll need proper privileges to access the MCU. You can either use
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`sudo` when flashing firmware, or place these files in `/etc/udev/rules.d/`.
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**/etc/udev/rules.d/50-atmel-dfu.rules:**
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```
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# Atmel ATMega32U4
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SUBSYSTEMS=="usb", ATTRS{idVendor}=="03eb", ATTRS{idProduct}=="2ff4", MODE:="0666"
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# Atmel USBKEY AT90USB1287
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SUBSYSTEMS=="usb", ATTRS{idVendor}=="03eb", ATTRS{idProduct}=="2ffb", MODE:="0666"
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# Atmel ATMega32U2
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SUBSYSTEMS=="usb", ATTRS{idVendor}=="03eb", ATTRS{idProduct}=="2ff0", MODE:="0666"
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```
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**/etc/udev/rules.d/52-tmk-keyboard.rules:**
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```
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# tmk keyboard products https://github.com/tmk/tmk_keyboard
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SUBSYSTEMS=="usb", ATTRS{idVendor}=="feed", MODE:="0666"
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```
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## Unknown Device for DFU Bootloader
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If you're using Windows to flash your keyboard, and you are running into issues, check the Device Manager. If you see an "Unknown Device" when the keyboard is in "bootloader mode", then you may have a driver issue.
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Re-running the installation script for MSYS2 may help (eg run `./util/qmk_install.sh` from MSYS2/WSL) or reinstalling the QMK Toolbox may fix the issue.
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If that doesn't work, then you may need to grab the [Zadig Utility](https://zadig.akeo.ie/). Download this, find the device in question, and select the `WinUS(libusb-1.0)` option, and hit "Reinstall driver". Once you've done that, try flashing your board, again.
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## WINAVR is Obsolete
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It is no longer recommended and may cause some problem.
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See [TMK Issue #99](https://github.com/tmk/tmk_keyboard/issues/99).
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## USB VID and PID
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You can use any ID you want with editing `config.h`. Using any presumably unused ID will be no problem in fact except for very low chance of collision with other product.
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Most boards in QMK use `0xFEED` as the vendor ID. You should look through other keyboards to make sure you pick a unique Product ID.
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Also see this.
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https://github.com/tmk/tmk_keyboard/issues/150
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You can buy a really unique VID:PID here. I don't think you need this for personal use.
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- http://www.obdev.at/products/vusb/license.html
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- http://www.mcselec.com/index.php?page=shop.product_details&flypage=shop.flypage&product_id=92&option=com_phpshop&Itemid=1
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## Cortex: `cstddef: No such file or directory`
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GCC 4.8 of Ubuntu 14.04 had this problem and had to update to 4.9 with this PPA.
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https://launchpad.net/~terry.guo/+archive/ubuntu/gcc-arm-embedded
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https://github.com/tmk/tmk_keyboard/issues/212
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https://github.com/tmk/tmk_keyboard/wiki/mbed-cortex-porting#compile-error-cstddef
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https://developer.mbed.org/forum/mbed/topic/5205/
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## `clock_prescale_set` and `clock_div_1` Not Available
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Your toolchain is too old to support the MCU. For example WinAVR 20100110 doesn't support ATMega32u2.
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```
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Compiling C: ../../tmk_core/protocol/lufa/lufa.c
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avr-gcc -c -mmcu=atmega32u2 -gdwarf-2 -DF_CPU=16000000UL -DINTERRUPT_CONTROL_ENDPOINT -DBOOTLOADER_SIZE=4096 -DF_USB=16000000UL -DARCH=ARCH_AVR8 -DUSB_DEVICE_ONLY -DUSE_FLASH_DESCRIPTORS -DUSE_STATIC_OPTIONS="(USB_DEVICE_OPT_FULLSPEED | USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)" -DFIXED_CONTROL_ENDPOINT_SIZE=8 -DFIXED_NUM_CONFIGURATIONS=1 -DPROTOCOL_LUFA -DEXTRAKEY_ENABLE -DCONSOLE_ENABLE -DCOMMAND_ENABLE -DVERSION=unknown -Os -funsigned-char -funsigned-bitfields -ffunction-sections -fdata-sections -fno-inline-small-functions -fpack-struct -fshort-enums -fno-strict-aliasing -Wall -Wstrict-prototypes -Wa,-adhlns=obj_alps64/protocol/lufa/lufa.lst -I. -I../../tmk_core -I../../tmk_core/protocol/lufa -I../../tmk_core/protocol/lufa/LUFA-git -I../../tmk_core/common -std=gnu99 -include config.h -MMD -MP -MF .dep/obj_alps64_protocol_lufa_lufa.o.d ../../tmk_core/protocol/lufa/lufa.c -o obj_alps64/protocol/lufa/lufa.o
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../../tmk_core/protocol/lufa/lufa.c: In function 'setup_mcu':
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../../tmk_core/protocol/lufa/lufa.c:575: warning: implicit declaration of function 'clock_prescale_set'
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../../tmk_core/protocol/lufa/lufa.c:575: error: 'clock_div_1' undeclared (first use in this function)
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../../tmk_core/protocol/lufa/lufa.c:575: error: (Each undeclared identifier is reported only once
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../../tmk_core/protocol/lufa/lufa.c:575: error: for each function it appears in.)
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make: *** [obj_alps64/protocol/lufa/lufa.o] Error 1
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```
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## BOOTLOADER_SIZE for AVR
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Note that Teensy2.0++ bootloader size is 2048byte. Some Makefiles may have wrong comment.
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```
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# Boot Section Size in *bytes*
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# Teensy halfKay 512
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# Teensy++ halfKay 2048
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# Atmel DFU loader 4096 (TMK Alt Controller)
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# LUFA bootloader 4096
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# USBaspLoader 2048
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OPT_DEFS += -DBOOTLOADER_SIZE=2048
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```
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## `avr-gcc: internal compiler error: Abort trap: 6 (program cc1)` on MacOS
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This is an issue with updating on brew, causing symlinks that avr-gcc depend on getting mangled.
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The solution is to remove and reinstall all affected modules.
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```
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brew rm avr-gcc
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brew rm dfu-programmer
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brew rm dfu-util
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brew rm gcc-arm-none-eabi
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brew rm avrdude
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brew install avr-gcc
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brew install dfu-programmer
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brew install dfu-util
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brew install gcc-arm-none-eabi
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brew install avrdude
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```
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### avr-gcc 8.1 and LUFA
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If you updated your avr-gcc to above 7 you may see errors involving LUFA. For example:
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`lib/lufa/LUFA/Drivers/USB/Class/Device/AudioClassDevice.h:380:5: error: 'const' attribute on function returning 'void'`
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For now, you need to rollback avr-gcc to 7 in brew.
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```
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brew uninstall --force avr-gcc
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brew install avr-gcc@7
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brew link avr-gcc@7
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```
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