New ContributorI am a beginner in FPGA programming. I wanted to blink LED on my FPGA board. Code compilation was done successfully. So, I programmed it on my DE0- Nano Altera FPGA board. But I could not see the LED blinking (I tried it in different ways using different pins). I want to know the issue of this.
Super ContributorThis is a very generic description of a problem. Can you provide more detail? Did you make I/O pin assignments to connect the outputs of your design to LEDs on the board? Can you provide the HDL code?
New Contributormodule LED_blink(clk,outp);
input clk;
output reg outp=0;
reg [25:0] count=0;
always@(posedge clk)
begin
if(count<25000000) // blink 1 sec as clk freq is 50MHz
begin
count<=count+1;
end
else
begin
count<=0;
outp<=outp;
end
end
endmodule
Super ContributorYou're never changing the value of outp. It's always 0.
Super ContributorHi Athauda,
The question is very generic lot. Can you narrow down the issue ? Make sure the functionality is correct. Assuming code wise and functionality is simulated as expected, maybe some location assignment/pin planner for you PIO wrongly assigned? Need to double check.
New ContributorI checked it by changing the pins as well. But no change
Super ContributorAthauda,
Any update at your end regarding this?
New ContributorYes.. I got it using above code by editing it as outp <= ~outp.
