Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

About styles of writing FSM

Hi, I find many people on their blog suggest coding FSM as follow. always @ (posedge clk or negedge rst_n) if(!rst_n) current_state <= IDLE; else current_state <= next_state; alw...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

Altera recommends using localparams (or in system verilog use an enumerated type) because it makes the code easier to read. The synth tool can still extract the state machine from either style and will auto assign state values for you based on your synthesis settings (1 hot, grey code, counter)