You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
I'm developing a single button stopwatch with latch function to save the last round.
First i used the standard 7448 7-Segment decoder plus discrete latches (74174) but then i found the 744511 which is a 7-segment decoder plus latch.
Sometimes, when I repeat the test several times, I get an Error:
First of all, is this something I should care about before implementing in real world electronics?
If yes.. how can i debug this? The circuit for the 744511 was discussed here on reddit. I used the corrected "ideal" schematic, should i use the TI one with added gates?
I guess the culprit here is the NOR-based S/R latches in your homemade D-latch that is a part of the '4511. They tend to be a bit evil and oscillate in simulations - and if the enable-pulse to them is too short they always go into oscillation.
There's a new pre-release of Digital that has a feature that makes oscillations die down by themselves. See discussion #1230 for a link to the download.
Hi,
Digital v0.30
I'm developing a single button stopwatch with latch function to save the last round.
First i used the standard 7448 7-Segment decoder plus discrete latches (74174) but then i found the 744511 which is a 7-segment decoder plus latch.
Sometimes, when I repeat the test several times, I get an Error:
First of all, is this something I should care about before implementing in real world electronics?
If yes.. how can i debug this? The circuit for the 744511 was discussed here on reddit. I used the corrected "ideal" schematic, should i use the TI one with added gates?
Thanks in advance
Added the files here, if someone wants to dig in deeper.
SBDS_SingleButtonDigitalStopwatch.zip
The text was updated successfully, but these errors were encountered: