qmk_firmware/keyboards/orthodox/readme.md
Art Ortenburger 43579a80a7 add support for Orthodox keyboard (#1436)
* Added orthodox

* Modified readme

* Modified readme

* Modified readme

* Updated makefile

* Fixed keymap issues

* Modified serial communications to allow for over 8 columns

* Fixed sizeof command

* Fixed some typing issues

* Testing issue #1191 (n-column split i2c slave)

Based on initial OrthoDox (serial) config by @reddragond and others,
this attempts to add TWI (I2C) support.
Relevant: <https://github.com/qmk/qmk_firmware/issues/1191>

- per @ahtn recommendation, using memcpy for moving slave matrix
  into slave sending buffer
- slave buffer has been enlarged using sizeof(matrix_row_t)
- note: i2c.h now includes matrix.h
- note: matrix.c includes <string.h>

* Added i2c keymap - right col still not working

* orthodox: re-added i2c keymap, based on serial

* orthodox / issue #1191: trying 9-bit serial

- orthodox serial protocol now sends 9 bits per row, instead of 16.
  Technically it's using MATRIX_COLS, so it might work generically.
- ROW_MASK is #defined in serial.c to truncate the checksums to prevent
  overflows causing false errors. This macro should be renamed if it's
  kept.

* Revert "Fixed sizeof command"

This reverts commit f62a5b9939.

Changes had been made to the lets_split serial driver for testing which
mirrored the multi-byte-row changes made to support the orthodox. As the
lets_split does not require these changes, and new improvements had
been added to the orthodox port only, this commit reverts them.

Because the new code could potentially reduce latency over the serial
transport, it may be desirable to re-add in the future, by backporting
the current working orthodox code.

* orthodox: default serial keymap improvements

- formatting has been improved
- a few keys have been shifted, mainly in Raise and Lower layers,
  to be more like the default Planck layout
- Now available: F12, Home, End, PgUp, PgDn, Media-Next, Media-Play

Still To Do:
- duplicate for TWI
- Alt modifier
- GUI modifier

* orthodox: failed attempt at 16b/row TWI

- duplicated updated serial keymap for "i2c"
- removed string.h/memcpy, instead
- hardcoded copying of six bytes per update
- still doesn't work; master reports interconnect errors on txled

* orthodox: adjusted default keymap

- this is applied to both 'serial' and 'i2c' keymaps
- Alt and GUI have been added, as they were missing
- comma and period persist across more layers; Home/PgUp and End/PgDn
  have been moved slightly to accommodate

* orthodox: revert TWI support to minimum to debug

- disabled ssd1306 and hardware locking in build configuration
- increased TWI buffer from 0x10 to 0x20 bytes
- decreased TWI clock from 400000 to 100000
- removed hardcoded TWI multi-byte sending/receiving

An 'i2c' build of this was found to work on a rev1 Orthodox, although
slave-side col9 was understandably not working. When testing-time
permits, features will be gradually re-enabled towards getting the full
matrix supported over TWI.

* orthodox: TWI (i2c) is working, kludge for col9

The TWI interconnect ("i2c" in directories and build config) is now
working for the Orthodox, including the slave half's column #9.
This is intended as an interim solution, as it's a kludge, not a fix.

Rather than a working multi-byte implementation, the two col9 keys'
bits are packed-into and unpacked-from the two unused bits in row1.
Furthermore, the TWI clock constant has been reduced to 100000 from
400000, as testing revealed the higher value just didn't work.
Testing also found that (with this kludge) increasing the TWI buffer
was not necessary.

This commit leaves many commented-out lines in matrix.c from previous
testing, which will be removed in a future commit once the
interconnects' multi-byte problems have been debugged more thoroughly.

* orthodox: updated readme.md

The readme for the Orthodox now includes a description of the keyboard,
allusions to its author and availability, a linked photo, and links to
the evolving build guide and the current keymap on KLE.
This update has been prepared with /u/Deductivemonkee's assistance.
2017-06-25 21:30:07 -04:00

6.2 KiB

Orthodox

Please note this guide is a work in progress and is based directly on the Let's Split guide.

Orthodox is a split ortholinear keyboard with thumb-clusters designed in 2017 by /u/Deductivemonkee, expected to be available in group buys. Each half has 18 keys in a 3x6 grid and a five key thumb-cluster, of which three use 1.25-unit keycaps.

Example prototype build by /u/Deductivemonkee

Its firmware is based on the Let's Split's. Each side is controlled by an Arduino Pro Micro (or compatible), and they're connected by a TRRS cable using the serial protocol. Support for the protocol using TWI (i2c®) is a work-in-progress.

Revisions

  • Rev.1 Prototype GB version, supporting only Pro Micro in the corner footprint, and using PCB top- and bottom-plates.

Note that the second number after the Rev. text is the pcb order number. The prototypes will say 1, and the next order of any revision will say 2 and so on.

Keymaps

The default layout can be unofficially referred to here.

The thumb-clusters are an extension of row 2 and row 3 along columns 7, 8, and 9. Row 2 does not have a physical key in column 8, so when editing keymaps a placeholder constant (XXXXXXX or KC_NO) must be used in the row2-col8 position.

Build Guide

Official build guide by /u/Deductivemonkee

For further reading on build- and flashing-procedures for split ortholinear skeleton-case keyboards, please refer to An Overly Verbose Guide to Building a Let's Split Keyboard, much of which can be applied to the Orthodox.

First Time Setup

Download or clone the whole firmware and navigate to the keyboards/orthodox directory. Once your dev env is setup, you'll be able to generate the default .hex using:

$ make rev1

You will see a lot of output and if everything worked correctly you will see the built hex files in your root qmk_firmware directory two levels up:

orthodox_rev1_serial.hex

If you would like to use one of the alternative keymaps, or create your own, copy one of the existing keymaps and run make like so:

$ make rev1-YOUR_KEYMAP_NAME

If everything worked correctly you will see a file:

orthodox_rev1_YOUR_KEYMAP_NAME.hex

For more information on customizing keymaps, take a look at the primary documentation for Customizing Your Keymap in the main readme.md.

Features

For the full Quantum Mechanical Keyboard feature list, see the parent readme.md.

Some features supported by the firmware:

  • Either half can connect to the computer via USB, or both halves can be used independently.
  • You only need 3 wires to connect the two halves. Two for VCC and GND and one for serial communication.

Required Hardware

Apart from diodes and key switches for the keyboard matrix in each half, you will need:

  • 2 Arduino Pro Micro's. You can find theses on aliexpress for ≈3.50USD each.
  • 2 TRRS sockets and 1 TRRS cable

Notes on Software Configuration

Configuring the firmware is similar to any other QMK project. One thing to note is that MATRIX_ROWS in config.h is the total number of rows between the two halves, i.e. if your split keyboard has 3 rows in each half, then MATRIX_ROWS=6.

Flashing

From the keymap directory run make SUBPROJECT-KEYMAP-avrdude for automatic serial port resolution and flashing. Example: make rev2-serial-avrdude

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.