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- UID
- 132901
- 性别
- 男
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proc1:process(read_clk,reset)
begin
if (reset='1') then
read_addr <= 9;
elsif (read_clk'event and read_clk='1') then
if (read_enable='1' and empty='0') then
if (read_addr=9) then
read_addr <=0;
else
read_addr <= read_addr+1;
end if;
read_data_out <= RAM(read_addr);
else
read_data_out <= "ZZZZZZZZZZ";
end if;
end if;
end process proc1;
大家看看，如果条件
read_enable='1' and empty='0'成立，且刚开始reset＝1，第二个时钟时reset＝0，请问第一次输出的数据应该是RAM(9)还是RAM(0)。
谢谢 |
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