From c71b60c82a44f6d0c32e9f08831eec564df12421 Mon Sep 17 00:00:00 2001
From: Donald <itsaferbie@gmail.com>
Date: Sun, 23 Jul 2017 16:37:31 -0400
Subject: Changed case of deltasplit75 to be lowercase.

To follow convention.
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 keyboards/deltasplit75/readme.md | 126 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 126 insertions(+)
 create mode 100644 keyboards/deltasplit75/readme.md

(limited to 'keyboards/deltasplit75/readme.md')

diff --git a/keyboards/deltasplit75/readme.md b/keyboards/deltasplit75/readme.md
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+DeltaSplit75
+======
+
+This readme and most of the code are from https://github.com/ahtn/tmk_keyboard/ and https://github.com/qmk/qmk_firmware/tree/master/keyboards/lets_split
+
+Credit to ahtn and wootpatoot for work on the split keyboard firmware
+
+Split keyboard firmware for Arduino Pro Micro or other ATmega32u4
+based boards.
+
+## Case Files
+Files are available here: https://github.com/xyxjj/DeltaSplit75-Case-files
+
+
+## First Time Setup
+
+Download or clone the whole firmware and navigate to the keyboards/DeltaSplit75 directory. Once your dev env is setup, you'll be able to generate the default .hex using:
+
+```
+make V2
+
+or
+
+make ProtoSplit-ProtoSplit (if you have one of the prototype PCBs)
+```
+
+You will see a lot of output and if everything worked correctly you will see the built hex files:
+
+```
+DeltaSplit75_ProtoSplit_ProtoSplit.hex
+
+or
+
+DeltaSplit75_V2_Default.hex
+
+```
+
+
+For more information on customizing keymaps, take a look at the primary documentation for [Customizing Your Keymap](/readme.md##customizing-your-keymap) in the main readme.md.
+
+### DeltaSplit75 V2
+The PCBs available in groupbuy are all v2, if you've bought one of my prototype PCBs (it says DeltaSplit65 on the silkscreen instead of 75), use the code make ProtoSplit-ProtoSplit instead
+
+Features
+--------
+
+For the full Quantum Mechanical Keyboard feature list, see [the parent readme.md](/readme.md).
+
+Some features supported by the firmware:
+
+* Either half can connect to the computer via USB, or both halves can be used
+  independently.
+* 75% formfactor
+* Support for multiple Bottom Rows
+* RGB underglow support
+* Split Backspace and ISO support
+
+
+Flashing
+-------
+I personally use xLoader to upload my hex files to the keyboard, though any other working software is fine too
+
+
+Choosing which board to plug the USB cable into (choosing Master)
+--------
+Because the two boards are identical, the firmware has logic to differentiate the left and right board.
+
+It uses two strategies to figure things out: look at the EEPROM (memory on the chip) or looks if the current board has the usb cable.
+
+The EEPROM approach requires additional setup (flashing the eeeprom) but allows you to swap the usb cable to either side.
+
+The USB cable approach is easier to setup and if you just want the usb cable on the left board, you do not need to do anything extra.
+
+### Setting the left hand as master
+If you always plug the usb cable into the left board, nothing extra is needed as this is the default. Comment out `EE_HANDS` and comment out `I2C_MASTER_RIGHT` or `MASTER_RIGHT` if for some reason it was set.
+
+### Setting the right hand as master
+If you always plug the usb cable into the right board, add an extra flag to your `config.h`
+```
+ #define MASTER_RIGHT
+```
+
+### Setting EE_hands to use either hands as master
+If you define `EE_HANDS` in your `config.h`, you will need to set the
+EEPROM for the left and right halves.
+
+The EEPROM is used to store whether the
+half is left handed or right handed. This makes it so that the same firmware
+file will run on both hands instead of having to flash left and right handed
+versions of the firmware to each half. To flash the EEPROM file for the left
+half run:
+```
+avrdude -p atmega32u4 -P $(COM_PORT) -c avr109 -U eeprom:w:eeprom-lefthand.eep
+// or the equivalent in dfu-programmer
+
+```
+and similarly for right half
+```
+avrdude -p atmega32u4 -P $(COM_PORT) -c avr109 -U eeprom:w:eeprom-righhand.eep
+// or the equivalent in dfu-programmer
+```
+
+NOTE: replace `$(COM_PORT)` with the port of your device (e.g. `/dev/ttyACM0`)
+
+After you have flashed the EEPROM, you then need to set `EE_HANDS` in your config.h, rebuild the hex files and reflash.
+
+Note that you need to program both halves, but you have the option of using
+different keymaps for each half. You could program the left half with a QWERTY
+layout and the right half with a Colemak layout using bootmagic's default layout option.
+Then if you connect the left half to a computer by USB the keyboard will use QWERTY and Colemak when the
+right half is connected.
+
+
+Notes on Using Pro Micro 3.3V
+-----------------------------
+
+Do update the `F_CPU` parameter in `rules.mk` to `8000000` which reflects
+the frequency on the 3.3V board.
+
+Also, if the slave board is producing weird characters in certain columns,
+update the following line in `matrix.c` to the following:
+
+```
+// _delay_us(30);  // without this wait read unstable value.
+_delay_us(300);  // without this wait read unstable value.
+```
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