Please give specific code changes, thank you, and please note after 4999999 changed little flicker frequency is faster or slower, what unit of time, thank you!

CodePudding user response:

1. The blink rate
Change

 parameter END_CNT_1S=2499999 

flicker frequency to speed up the double
Change the

 parameter END_CNT_1S=9999999 

flicker frequency twice as slow

Direction
2.

 
Case (led) 
4 'b1000: led... 
4 'b0100: led... 
4 'b0010: led... 
4 'b0001: led... 
Default: led... 
Endcase 

3. See question 1

CodePudding user response:

Change 4999999 is the flicker frequency, the smaller the higher the frequency, time unit is END_CNT_1S/CLK