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Hi,
I have the same problem.
Quartus II 17.0 is stuck for hours (more than 8 hours) on 47% analisys. I am compiling for Cyclone IV E (ep4ce10...).
I noticed that, in my design (a MISP type CPU mono clock), if I wired the final MUX selection signal with control signal, the compile is stuck on 47%.
If I fix the select signal of final MUX to a value (eg. VCC), my design compile in few seconds. But...why?
I am trying my design also with quartus 19.1 and the problem is the same.
Did anybody find a solution? I have the same problem here...
I use the exact code from
https://software.intel.com/content/www/us/en/develop/articles/how-to-program-your-first-fpga-device.html
At the bottom, with 8 LEDs.. No single change done to the code..
Compilation gets stuck at 32%...
- Hakeen5 years ago
New Contributor
here the code:
// create module
module blink(
input wire clk, // 50MHz input clock
output wire [7:0] LED // array of 8 LEDs
);// create a binary counter
reg [31:0] cnt; //32 bit counterinitial begin
cnt <= 32'h00000000; // start count at zero
end
always @(posedge clk) begin
cnt <= cnt+1; // count up
end
//assign LEDs to bits 28 through 21 of the counter
assign LED = cnt[28:21];