给我一个FPGA 示波器工程
时间: 2023-05-27 11:05:25 浏览: 44
由于FPGA 示波器工程的实现方式有很多种,我无法确定你需要哪种,以下是一种基于VHDL语言实现的 FPGA 示波器工程:
```
library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_arith.all;
use ieee.std_logic_unsigned.all;
entity oscilloscope is
port (
clk: in std_logic;
trigger_in: in std_logic;
data_in: in std_logic_vector(7 downto 0);
data_out: out std_logic_vector(7 downto 0);
trigger_out: out std_logic
);
end oscilloscope;
architecture behavior of oscilloscope is
signal sample_count: integer range 0 to 255 := 0;
signal data: std_logic_vector(7 downto 0) := (others=>'0');
signal trigger: std_logic := '0';
begin
process(clk)
begin
if rising_edge(clk) then
-- increment sample count
if sample_count = 255 then
sample_count <= 0;
else
sample_count <= sample_count + 1;
end if;
-- capture data when count reaches trigger point
if sample_count = 128 and trigger_in = '1' then
data <= data_in;
trigger <= '1';
else
trigger <= '0';
end if;
end if;
end process;
-- output captured data and trigger status
data_out <= data;
trigger_out <= trigger;
end behavior;
```
该工程实现了一个简单的 FPGA 示波器,每当时钟信号上升沿到来时,计数器计数器增加,当计数器值为128时,如果触发信号为高电平,就会将输入数据获取到并输出,同时输出触发状态。该工程仅作参考,具体实现需要根据实际需求进行调整。