[MCPE-14079] Rs nor latches acting like a redstone clock. Created: 10/Apr/16  Updated: 28/Apr/16  Resolved: 28/Apr/16

Status: Resolved
Project: Minecraft (Bedrock codebase)
Component/s: None
Affects Version/s: 0.14.0
Fix Version/s: None

Type: Bug
Reporter: Thomas Clark-Phelps
Resolution: Duplicate Votes: 0
Labels: None

Attachments: PNG File image.png     PNG File image.png     PNG File image.png     PNG File image.png    
Issue Links:
Duplicate
duplicates MCPE-11953 Redstone torch timings are off by hal... Resolved
Confirmation Status: Unconfirmed
Platform: Phone - iOS - iPhone 5S

 Description   

I tried 3 types of rs nor latches and all of them act like clocks. They flash at the same speed as a comparator clock. The effect only occurs if you place down the torches last or give it a one tick pulse. You can stop it by powering one side. It will light up a lamp.



 Comments   
Comment by Thomas Clark-Phelps [ 11/Apr/16 ]

Ok I think I understand. Thanks for the explanation.

Comment by PHO [ 11/Apr/16 ]

Well it's hard to explain but let me try... Suppose we had an RS-NOR latch with two redstone torches Ta, Tb and redstone dust Ra, Rb. When Ta is activated, it powers Ra and then deactivates Tb. When Tb is activated, it powers Rb and then deactivates Ta. If we send a 1 tick on-pulse to the inactive side of latch, suppose this time it was Ta/Ra that was inactive,

At t=0 (initial state):
Ta is inactive, Ra is unpowered, Tb is active, Rb is powered.

t=1 (external on-pulse):
Ta is inactive, Ra is powered, Tb is active, Rb is powered.

t=2:
Ta is inactive, Ra is unpowered, Tb is inactive, Rb is unpowered.

t=3:
Ta is active, Ra is powered, Tb is active, Rb is powered.

t=4:
Ta is inactive, Ra is unpowered, Tb is inactive, Rb is unpowered. This is the same as t=2 and thus repeats t=2 and t=3 forever.

Comment by Thomas Clark-Phelps [ 11/Apr/16 ]

That might be possible, I saw that in my search but I didn't think it was related.

Comment by PHO [ 11/Apr/16 ]

I'm pretty sure this is a consequence of MCPE-11953.

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