Opened 7 years ago

Closed 7 years ago

#15 closed accuracy (fixed)

Emulate slow rise time of IO port pin when transitioning from low output to input

Reported by: Mike Pavone Owned by: Mike Pavone
Priority: major Milestone: 0.5.0
Component: Genesis/Megadrive Version: 0.4.1
Keywords: Cc:

Description

When an IO pin on one of the controller ports is set to an input, it will be pulled high by a pull up resistor. However, it appears that pull up is weak so the rise time is observable. Decap Attack has a buggy controller reading routine that depends on this behavior.

Change History (1)

comment:1 by Mike Pavone, 7 years ago

Resolution: fixed
Status: newclosed
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