Honored ContributorHi,
I need urgent help on how to design a stopwatch that can stop/purse using vhdl code. I will really appreciate any urgent reply to this. Thanks. Waiting for your replies.
Honored ContributorUse Quartus -> Right click -> Insert template -> Full design -> Counter
Honored ContributorI didnt get what you are saying.
I have designed the counter but I want to work on the stop and start botton on the board to stop/start when i press stop/start without holding the button down. I will need quick reply from you and other members of this forum.Honored ContributorAdd the following lines:
--pseudocode
-- on the clock edge
if start = '1' then -- or may be '0' depending on key logic
start_L <= '1';
elsif stop = '1' then
start_L <= '0';
end if;
if start_L = '1' then
count <= count + 1;
end if; Can you make ce input to be for both start/stop/pause or you separate start, stop and purse as different input logic?
I will appreciate your urgent replyHonored ContributorI assume CE is clkenable. You can apply it to all clocked registers at same time.
Honored Contributorcan i separate the START AND PURSE with separate input i.e
Start: IN_STD_LOGIC PAUSE: IN_STD_LOGICHonored Contributoryou can start, stop, reset, freeze reverse,...etc at will by choosing a switch for each decision
Honored Contributoris not working out at. I want to the button start to be pressed once and it will purse. I have been able to do it that if i press it down, it will purse. Now I want a code for CLockenable that can stop the counter, like clear it without changing and if i press it again, it should be able to start.
Thanks.Honored Contributoris not working out . I want the button start to be pressed once and it will purse. I have been able to do it such that if i press it down, it will purse. Now I want a code for CLockenable that can stop the counter, like clear it and if i press it again, it should start.
thanks.Honored Contributorin that case it should not be called clock enable.
-- on clock edge if sw = '1' then toggle <= not toggle; end if; if toggle = '1' then count <= 0; else count up... you will need to manage the logic of various switches now with care otherwise they might get in conflict. This where simulations helps.
