Can the Negative edge triggered JK Flip Flop in Simulink be converted to positive edge triggered?

Simulink library has the Negative edge triggered JK flip flop by default and if we go inside the block it has a trigger block using which the triggering can be changed to positive edge triggered. But unfortunately Matlab designers have disabled (greyed out) any modifications to this block. This doesn't make any sense, why would matlab not include a positive edge triggered JK flip flop if it doesn't even give us the option of modifying the existing negative edge triggered flip flop. I desperately need the positive edge triggered JK flip flop for my use in simulink. Can anyone provide an answer as to how to obtain the positive edge triggered JK flip flop.

Answer 1

[Samatha Aleti]

Hi,

Yes, Simulink by default has Negative edge triggered JK Flip flop. To have the functionality of a Positive edge triggered JK Flip flop, you can invert the clock input(using NOT block in Simulink) and pass this inverted clock signal to the JK Flip flop block.