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Update split keyboard docs (#4735)

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* Remove unused I2C_MASTER_RIGHT setting

* Update documentation about split keyboard options
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Danny 2018-12-28 16:02:53 -05:00 • committed by Drashna Jaelre
parent 93b004c943
commit c0859ac096
3 changed files with 37 additions and 5 deletions
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docs/config_options.md
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@ -197,8 +197,27 @@ If you define these options you will enable the associated feature, which may in
Split Keyboard specific options, make sure you have 'SPLIT_KEYBOARD = yes' in your rules.mk
* `#define SPLIT_HAND_PIN B7`
* For using high/low pin to determine handedness, low = right hand, high = left hand. Replace 'B7' with the pin you are using. This is optional and you can still use the EEHANDS method or MASTER_LEFT / MASTER_RIGHT defines like the stock Let's Split uses.
### Setting Handedness
One thing to remember, the side that the USB port is plugged into is always the master half. The side not plugged into USB is the slave.
There are a few different ways to set handedness for split keyboards (listed in order of precedence):
1. Set `SPLIT_HAND_PIN`: Reads a pin to determine handedness. If pin is high, it's the left side, if low, the half is determined to be the right side
2. Set `EE_HANDS` and flash `eeprom-lefthand.eep`/`eeprom-righthand.eep` to each half
3. Set `MASTER_RIGHT`: Half that is plugged into the USB port is determined to be the master and right half (inverse of the default)
4. Default: The side that is plugged into the USB port is the master half and is assumed to be the left half. The slave side is the right half
* `#define SPLIT_HAND_PIN B7`
* For using high/low pin to determine handedness, low = right hand, high = left hand. Replace `B7` with the pin you are using. This is optional, and if you leave `SPLIT_HAND_PIN` undefined, then you can still use the EE_HANDS method or MASTER_LEFT / MASTER_RIGHT defines like the stock Let's Split uses.
* `#define EE_HANDS` (only works if `SPLIT_HAND_PIN` is not defined)
* Reads the handedness value stored in the EEPROM after `eeprom-lefthand.eep`/`eeprom-righthand.eep` has been flashed to their respective halves.
* `#define MASTER_RIGHT`
* Master half is defined to be the right half.
### Other Options
* `#define USE_I2C`
* For using I2C instead of Serial (defaults to serial)
@ -206,6 +225,20 @@ Split Keyboard specific options, make sure you have 'SPLIT_KEYBOARD = yes' in yo
* `#define SOFT_SERIAL_PIN D0`
* When using serial, define this. `D0` or `D1`,`D2`,`D3`,`E6`.
* `#define MATRIX_ROW_PINS_RIGHT { <row pins> }`
* `#define MATRIX_COL_PINS_RIGHT { <col pins> }`
* If you want to specify a different pinout for the right half than the left half, you can define `MATRIX_ROW_PINS_RIGHT`/`MATRIX_COL_PINS_RIGHT`. Currently, the size of `MATRIX_ROW_PINS` must be the same as `MATRIX_ROW_PINS_RIGHT` and likewise for the definition of columns.
* `#define SELECT_SOFT_SERIAL_SPEED <speed>` (default speed is 1)
* Sets the protocol speed when using serial communication
* Speeds:
* 0: about 189kbps (Experimental only)
* 1: about 137kbps (default)
* 2: about 75kbps
* 3: about 39kbps
* 4: about 26kbps
* 5: about 20kbps
# The `rules.mk` File
This is a [make](https://www.gnu.org/software/make/manual/make.html) file that is included by the top-level `Makefile`. It is used to set some information about the MCU that we will be compiling for as well as enabling and disabling certain features.