wwwrabbit
Member level 1
Xilinx ISE5.1
I want to generate a input signal, which is asychronize to clock. of course I can draw the signal in the test bench. I wonder if I can programe the signal in my .vhl file, so that the signal vary as per my design.
I tried this,
wform <= '0', '1' after 8 ns, '0' after 13 ns, '1' after 50 ns;
but wform won't change.
:?: :?:
I want to generate a input signal, which is asychronize to clock. of course I can draw the signal in the test bench. I wonder if I can programe the signal in my .vhl file, so that the signal vary as per my design.
I tried this,
wform <= '0', '1' after 8 ns, '0' after 13 ns, '1' after 50 ns;
but wform won't change.
:?: :?: