[SOLVED] sparten 3e PROM programming

[Gangadhara Reddy]

hi
i programmed PROM. IN FPGA I used (M0,M1,M2) mode
ISE impact tool displayed PROGRAM SUCCEEDED.
But i am not getting output,
please help me

 

[barry]

Maybe your code us wrong? Maybe you have no clock? Have you simulated?

 

[Gangadhara Reddy]

it is a simple half adder program.
program is like this
half adder

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Code Verilog - [expand]
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module add(sum,cout,a,b
    );
     input a,b;
     output sum,cout;
     xor a1(sum,a,b);
     and a2(cout,a,b);
     
endmodule

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add.ucf is:

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Code Verilog - [expand]
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NET "a" LOC = L13;
NET "b" LOC = L14;
NET "cout" LOC = E12;
NET "sum" LOC = F12;

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what can i do?