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| author | Luca <luca.masera79@gmail.com> | 2018-09-23 22:49:17 +0200 |
|---|---|---|
| committer | Drashna Jaelre <drashna@live.com> | 2018-09-23 13:49:17 -0700 |
| commit | 58b9b22670c2c36e8502826349d8f752d8b3ab37 (patch) | |
| tree | d68cd31decd1bb61c374447ff469de123c9b4735 /docs | |
| parent | 57ec309d3e05732094408834b00af9cfd1ffca62 (diff) | |
| download | qmk_firmware-58b9b22670c2c36e8502826349d8f752d8b3ab37.tar.gz qmk_firmware-58b9b22670c2c36e8502826349d8f752d8b3ab37.zip | |
Circuitry sample for PS/2 Mouse (#3959)
Added a sample circuitry for handling the connection of a PS/2 Mouse.
Even if it's written that a circuitry is needed, there're a lot of other
things and the information gets lost really fast. A really simple sample
helps to remember who wants to implement the functionality about the
circuitry.
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/feature_ps2_mouse.md | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/docs/feature_ps2_mouse.md b/docs/feature_ps2_mouse.md index 909406e7d2..01e2cc63db 100644 --- 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. |