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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. |