Post by BitLogic in BareMetal Logic comments

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BitLogic7 days ago (2 edits)

very well done! the smallest I could manage was 12x15 DFF.

would be curious to see your implementation!

best,
ayan

Brutus876546 days ago (1 edit)

here are the 2 d latches i have, the reason i have the top one is because the bottom one is a bit problematic with the output of it looping into the input (includes through other things)

also what you sent an image of isn't a DFF (d flip flop), it's a d latch, the difference is that a d flip flop only stores on rising or falling edge of a clock input while d latch stores as long as the store input is on (on a d flip flop you can have the store input as constant on or not have it at all and use the clock input as a store input)

the best way i've found to make a d flip flop is to use 2 d latches in series where one of them stores when the store input is on and the other stores when the store input is off

Brutus876546 days ago

here, i made a d flip flop using my smallest d latch, the top 3 rows are only needed on the top one if you use this to store values with multiple bits, could be used as a register or memory (memory could use d latch though)

BitLogic6 days ago (1 edit)

hello,

the image I sent before is, in fact, a DFF. the bottom line acts as the clock signal whilst the left line acts as our store value.

best,
ayan

Brutus876546 days ago

no it's a d latch since it doesn't only store on rising/falling edge of the clock signal as you can see in these images, the clock signal stays on (not falling/rising edge) but it still stores the value

BitLogic6 days ago

ah yes! you seem to be right, my apologies! well done once again.

i would also like how difficult it is to deal with propagation delays in sequential circuits. i was thinking of adding an oscilloscope so that it is easier to view.

thanks,
ayan

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