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author | Yuqian Yang <crupest@crupest.life> | 2025-02-12 15:55:21 +0800 |
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committer | Yuqian Yang <crupest@crupest.life> | 2025-02-12 15:55:21 +0800 |
commit | 1ecfd0ab7f1f511268fd6404dbc110c3c277b48c (patch) | |
tree | 49449a4076ded9bd937a51679318edbe2a532cae /works/life/computer-organization-experiment/counter_4.vhdl | |
parent | 55d8b025e8d6ea971e8ee5762c892405fedc316b (diff) | |
parent | f8c10dd1fc55e60f35286475356e48c4f642eb63 (diff) | |
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Diffstat (limited to 'works/life/computer-organization-experiment/counter_4.vhdl')
-rw-r--r-- | works/life/computer-organization-experiment/counter_4.vhdl | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/works/life/computer-organization-experiment/counter_4.vhdl b/works/life/computer-organization-experiment/counter_4.vhdl new file mode 100644 index 0000000..23c1807 --- /dev/null +++ b/works/life/computer-organization-experiment/counter_4.vhdl @@ -0,0 +1,19 @@ +LIBRARY IEEE; +USE IEEE.STD_LOGIC_1164.ALL; +USE IEEE.STD_LOGIC_UNSIGNED.ALL; + +ENTITY counter_4 IS + PORT (CLK:IN STD_LOGIC; + CQ:OUT STD_LOGIC_VECTOR(3 DOWNTO 0)); +END counter_4; +ARCHITECTURE behavior OF counter_4 IS +BEGIN + PROCESS(CLK) + VARIABLE CQI:STD_LOGIC_VECTOR(3 DOWNTO 0) := B"0000"; + BEGIN + IF CLK'EVENT AND CLK='1' THEN + CQI := CQI + 1; + END IF; + CQ<=CQI; + END PROCESS; +END behavior; |