Minor updates to docs (#2406)

* [docs/] Cleaning up some language to make it more clear.

* [docs/] Adding instructions for installing deps on RH / Fedora.
This commit is contained in:
Ben Hilburn 2018-02-19 14:09:05 -05:00 committed by Jack Humbert
parent 0e92d99cdc
commit 8df2ee4ec3
3 changed files with 27 additions and 25 deletions

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# Frequently Asked Build Questions
This page covers questions about building QMK. If you have not yet you should read the [Build Environment Setup](getting_started_build_tools.md) and [Make Instructions](getting_started_make_guide.md) guides.
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.
## Can't Program on Linux
You will need proper permission to operate a device. For Linux users see udev rules below. Easy way is to use `sudo` command, if you are not familiar with this command check its manual with `man sudo` or this page on line.
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).
In short when your controller is ATMega32u4,
An example of using `sudo`, when your controller is ATMega32u4:
$ sudo dfu-programmer atmega32u4 erase --force
$ sudo dfu-programmer atmega32u4 flash your.hex
$ sudo dfu-programmer atmega32u4 reset
or just
or just:
$ sudo make <keyboard>:<keymap>:dfu
But to run `make` with root privilege is not good idea. Use former method if possible.
## WINAVR is Obsolete
It is no longer recommended and may cause some problem.
See [TMK Issue #99](https://github.com/tmk/tmk_keyboard/issues/99).
## USB VID and PID
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.
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.
Also see this.
https://github.com/tmk/tmk_keyboard/issues/150
You can buy a really unique VID:PID here. I don't think you need this for personal use.
- http://www.obdev.at/products/vusb/license.html
- http://www.mcselec.com/index.php?page=shop.product_details&flypage=shop.flypage&product_id=92&option=com_phpshop&Itemid=1
Note that running `make` with `sudo` is generally *not* a good idea, and you should use one of the former methods, if possible.
## Linux `udev` Rules
On Linux you need proper privilege to access device file of MCU, you'll have to use `sudo` when flashing firmware. You can circumvent this with placing these files in `/etc/udev/rules.d/`.
On Linux, you'll need proper privileges to access the MCU. You can either use
`sudo` when flashing firmware, or place these files in `/etc/udev/rules.d/`.
**/etc/udev/rules.d/50-atmel-dfu.rules:**
```
@ -52,6 +37,21 @@ SUBSYSTEMS=="usb", ATTRS{idVendor}=="03eb", ATTRS{idProduct}=="2ff0", MODE:="066
SUBSYSTEMS=="usb", ATTRS{idVendor}=="feed", MODE:="0666"
```
## WINAVR is Obsolete
It is no longer recommended and may cause some problem.
See [TMK Issue #99](https://github.com/tmk/tmk_keyboard/issues/99).
## USB VID and PID
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.
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.
Also see this.
https://github.com/tmk/tmk_keyboard/issues/150
You can buy a really unique VID:PID here. I don't think you need this for personal use.
- http://www.obdev.at/products/vusb/license.html
- http://www.mcselec.com/index.php?page=shop.product_details&flypage=shop.flypage&product_id=92&option=com_phpshop&Itemid=1
## Cortex: `cstddef: No such file or directory`
GCC 4.8 of Ubuntu 14.04 had this problem and had to update to 4.9 with this PPA.
@ -61,7 +61,6 @@ https://github.com/tmk/tmk_keyboard/issues/212
https://github.com/tmk/tmk_keyboard/wiki/mbed-cortex-porting#compile-error-cstddef
https://developer.mbed.org/forum/mbed/topic/5205/
## `clock_prescale_set` and `clock_div_1` Not Available
Your toolchain is too old to support the MCU. For example WinAVR 20100110 doesn't support ATMega32u2.

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@ -31,11 +31,14 @@ git
Install the dependencies with your favorite package manager.
Debian/Ubuntu example:
Debian / Ubuntu example:
sudo apt-get update
sudo apt-get install gcc unzip wget zip gcc-avr binutils-avr avr-libc dfu-programmer dfu-util gcc-arm-none-eabi binutils-arm-none-eabi libnewlib-arm-none-eabi
Fedora / Red Hat example:
sudo dnf install gcc unzip wget zip dfu-util dfu-programmer avr-gcc avr-libc binutils-avr32-linux-gnu arm-none-eabi-gcc-cs arm-none-eabi-binutils-cs arm-none-eabi-newlib
## Nix
If you're on [NixOS](https://nixos.org/), or have Nix installed on Linux or macOS, run `nix-shell` from the repository root to get a build environment.

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@ -33,7 +33,7 @@ The state of the Keymap layer is determined by two 32 bit parameters:
* **`default_layer_state`** indicates a base keymap layer (0-31) which is always valid and to be referred (the default layer).
* **`layer_state`** has current on/off status of each layer in its bits.
Keymap layer '0' is usually `default_layer`, wither other layers initially off after booting up the firmware, although this can configured differently in `config.h`. It is useful to change `default_layer` when you completely switch a key layout, for example, if you want to switch to Colemak instead of Qwerty.
Keymap layer '0' is usually the `default_layer`, with other layers initially off after booting up the firmware, although this can configured differently in `config.h`. It is useful to change `default_layer` when you completely switch a key layout, for example, if you want to switch to Colemak instead of Qwerty.
Initial state of Keymap Change base layout
----------------------- ------------------