Starting VHDL - Digital Clock

[apprentice123]

I will develop a digital clock with alarm in VHDL with ModelSim.

My first question is how to simulate the clock in the four LEDs ?

 

[Chops211]

First you need to figure out what clock speed you are using. If for example you are using a 100Hz clock, you need to use a counter to count 100 clock edges to get to 1Hz.

LEDs are controlled by 7 pins, one for each part of the digit. You can write a ROM that stores the output to each LED controller so that you can set the output to the ROM(digit).

Hope this helps