X-Git-Url: https://git.friedersdorff.com/?a=blobdiff_plain;f=converter%2Fibm4704_usb%2FREADME.md;h=15c826ab8b7f7a26afc7c75f636731c34c0f40d5;hb=81137b7a61ef11df023e1f542840a80bfc1ca090;hp=1e29945d0561dd970f41750957d4e6eaaebce430;hpb=ebe951a445b5d774542731d6165a9c5cd56beb2b;p=max%2Ftmk_keyboard.git

diff --git a/converter/ibm4704_usb/README.md b/converter/ibm4704_usb/README.md
index 1e29945d..15c826ab 100644
--- a/converter/ibm4704_usb/README.md
+++ b/converter/ibm4704_usb/README.md
@@ -1,18 +1,56 @@
 IBM 4704 to USB keyboard converter
-=======----=======================
+==================================
 This firmware converts IBM 4704 keyboard protocol to USB HID.
 
+Keyboard initialization process takes a few seconds at start up. During that you will hear buzzer from the keyboard. **You need to plug USB cable after hooking up your keyboard to the converter.**
 
-Connect Wires
--------------
-In case of Teensy2.0(ATMega32U4):
 
-1. Connect Vcc and GND.
-2. Connect Clock and Data line. 
-    - Clock is on PD1 and Data on PD2.
-3. Optionally you need pull-up register. 1KOhm is OK?
+Update
+------
+2015/05/05  Added keymaps for 107-key, 77-key and 50-key. Thanks, orihalcon @ geekhack!
+2015/05/19  Fixed a protocol handling bug.
+
+
+
+Supported Keyboard
+------------------
+### IBM capacitive switch models:
+- 6019273 Model 100 50-key (grid layout)      http://kishy.ca/?p=894
+- 6019284 Model 200 62-key Alpha(60% layout)  http://kishy.ca/?p=894
+- 6019303 Model 300 77-key Expanded Alpha     http://deskthority.net/photos-f62/ibm-6019303-t8502.html
+- 6020218 Model 400 107-key Full key          http://kishy.ca/?p=894
+
+### Alps switch(vintage Green) models:
+
+- 5954339 Japanese 102-key    http://deskthority.net/post87127.html#p87127
+- 6112883 Japanese 102-key    http://geekhack.org/index.php?topic=52888.msg1194489#msg1194489
+- 6112884 Japanese 102-key    http://geekhack.org/index.php?topic=50437.msg1193047#msg1193047
+- 6341739 Chinese 102-key     http://geekhack.org/index.php?topic=52888.msg1176566#msg1176566
+
+
+Connector
+---------
+Keyboard Plug from front:
+
+    DSUB-9
+    -------------
+    \ N 2 3 4 5 /
+     \ N N N N /
+      ---------
+    2   GND
+    3   VCC 5V
+    4   DATA
+    5   CLOCK
+    N   No connection/No pin.
+
+
+Connection
+----------
+In case of using ATMega32U4(Teensy2.0):
 
-To change pin configuration edit config.h.
+1. Supply power with VCC and GND.
+2. Connect CLOCK to PD1 and DATA to PD0. You can change pin with config.h.
+3. Optionally you may need pull-up register. 1KOhm probably work.
 
 
 Build Firmware