[Keymap] Jarred's Plaid keymap (#6049)

[qmk_firmware.git] / docs / feature_ps2_mouse.md

diff --git a/docs/feature_ps2_mouse.md b/docs/feature_ps2_mouse.md
index 51ae5fa2633f98b6050949494c6d75066216d3bf..01e2cc63db6b7705a33951ecfbe2357129024569 100644 (file)
--- a/docs/feature_ps2_mouse.md
+++ b/docs/feature_ps2_mouse.md
@@ -6,6 +6,24 @@ To hook up a Trackpoint, you need to obtain a Trackpoint module (i.e. harvest fr
 
 There are three available modes for hooking up PS/2 devices: USART (best), interrupts (better) or busywait (not recommended).
 
+### The Cirtuitry between Trackpoint and Controller
+
+To get the things working, a 4.7K drag is needed between the two lines DATA and CLK and the line 5+. 
+
+```
+
+          DATA ----------+--------- PIN
+                         |
+                        4.7K
+                         |
+MODULE    5+  --------+--+--------- PWR   CONTROLLER
+                      |
+                     4.7K
+                      |    
+          CLK   ------+------------ PIN
+```
+
+
 ### Busywait Version
 
 Note: This is not recommended, you may encounter jerky movement or unsent inputs. Please use interrupt or USART version if possible.
@@ -135,7 +153,7 @@ These enable settings supported by the PS/2 mouse protocol: http://www.computer-
 
 ```
 /* Use remote mode instead of the default stream mode (see link) */
-#define PS2_MOUSE_USE_REMOTE_MODE  
+#define PS2_MOUSE_USE_REMOTE_MODE
 
 /* Enable the scrollwheel or scroll gesture on your mouse or touchpad */
 #define PS2_MOUSE_ENABLE_SCROLLING