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| author | Alex Ong <the.onga@gmail.com> | 2019-01-04 19:43:45 +1100 |
|---|---|---|
| committer | Alex Ong <the.onga@gmail.com> | 2019-01-04 19:43:45 +1100 |
| commit | 2bb2977c133646c4e056960e72029270d77cc1eb (patch) | |
| tree | 235d491f992121ac1716c5bf2fafb80983748576 /docs/feature_ps2_mouse.md | |
| parent | a55c838961c89097ab849ed6cb1f261791e6b9b4 (diff) | |
| parent | 47c91fc7f75ae0a477e55b687aa0fc30da0a283c (diff) | |
| download | qmk_firmware-2bb2977c133646c4e056960e72029270d77cc1eb.tar.gz qmk_firmware-2bb2977c133646c4e056960e72029270d77cc1eb.zip | |
Merge branch 'master' into debounce_refactor
# Conflicts:
# tmk_core/common/keyboard.c
Diffstat (limited to 'docs/feature_ps2_mouse.md')
| -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. |