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Altera_Forum's avatar
Altera_Forum
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8 years ago

I cant find any mistake but my compiler says its a mistake

Dear all, Please help me out her. counter <= counter + '1'; this is my instruction this is my error. So what is the mistake in it? Error (10327): VHDL error at led_blink.vh...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

your problem is unrelated to addition (which requires unsigned type if still want to add 1). your shift should shift input bit through 4 stages:

on the clk edge:

sr <= sr(2 downto 0) & sr_in;