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Hello,
I am trying to put together a simple one shot counter that gets trigered once every time an input signal (Gate) the counter just counts to some preloaded value and then just stops counting till the next time
Because I am a Verilog neophite I seem to struggle with the following error:
Error (10028): Can't resolve multiple constant drivers for net "temp" at PulseWidthCounter.v(25)
Any help or sugestions will greatly appreciated!!!
The code is as follows:
******************************************************************
module PulseWidthCounter(clk,CountVal,counterenable,Gate,PulseOut);
parameter SIZE = 20;
input clk;
input Gate;
input counterenable;
input CountVal;
output PulseOut = 0;
reg CounterVal;
reg clk1;
reg PulseOut;
reg temp = 0;
always @ (posedge counterenable)begin CounterVal <= CountVal; end
always @ (posedge Gate)begin temp <= 1'b1; end
always @ (posedge clk)
begin
if(temp == 1'b1)begin
clk1 <= clk1 +1;
if (clk1 < CounterVal)
PulseOut <= 1'b1;
else
PulseOut <= 1'b0; clk1 <=0; temp <= 0; end
end
endmodule
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Hi,
you got this error, because you are driving "temp" in two processes.
Would you like to achieve a counter, which starts counting at a rising of the signal "gate", then counts up to a certain value and then stops ( setting the counter to "0")?
Honored Contributor
