7 downto 0的意思是这个vector是个8位的信号 也可以写成0 to 7，在信号定义中，主要是为了声明这个信号的宽度 在使用中，也可以选取一个vector的任意几位 例如 signal INPUT : std_logic_vector(7 downto 0) := (others => '0');signal RESULT : std_logic_vector(3 downto 0) := (oth...
DIN: IN STD_LOGIC_VECTOR (7 DOWNTO 0); DOUT: OUT STD_LOGIC_VECTOR(7 DOWNTO 0)); END LX3_3; ARCHITECTURE ONE OF lx3_3 IS BEGIN PROCESS(ABIN,DIN) BEGIN FOR I IN 0 TO 7 LOOP DOUT(I)<=DIN(I) AND ANIN(I); END LOOP; ...
port (INBUSA, EN : in std_logic_vector(2 downto 0); SIGA : in std_logic_vector(1 downto 0); OUT_SIG : out std_logic); end LONG_LINE_EX1; architecture XILINX of LONG_LINE_EX1 is component PULLUP PORT (O : out std_logic); end component; signal INT_SIG : std_logic; begin ...
Hello, How to convert a signal of std_logic_vector(15 downto 0) to integer and then pass it or use it to a VDL module's variable? I tried the following but getting error In the VHDL module ... entity foobar is port( row_in : in std...
m序列vhdl程序,多项式f(x)=1+x^2+x^3+x^4+x^8 ,library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_arith.all; use ieee.std_logic_unsigned.all; entity PRSG is port (reset,clk:in std_logic; sel:in std_logic_vector(1 downto 0); dout:out st
unit : IN STD_LOGIC_VECTOR(3 DOWNTO 0); rw, rs, e : OUT STD_LOGIC; --read/write, setup/data, and enable for lcd lcd_data : OUT STD_LOGIC_VECTOR(7 DOWNTO 0)); --data signals for lcd END dados_lcd; ARCHITECTURE behavioral OF dados_lcd IS SIGNAL lcd_enable : STD_LOGI...
std_logic_VECTOR(to_unsigned(0,your_value_from_clog2_function)) - line 1086: add the library "use ieee.numeric_std.all;" (without quotes) - line 1140: change "signal rx_fifo_count : std_logic_vector(3 downto 0);" - change the value of 3 to the value returned by the clog2...
Out2 <= std_logic_vector(Gain1_out1); END rtl; To disable DeleteUnusedPorts optimization, run this command: makehdl('hdlcoder_subsys_ports_unused/DUT', 'DeleteUnusedPorts', 'off') When you set DeleteUnusedPorts to off, this port and the Add block calculation are preserved in the gene...
GCLK,BTNU:instd_logic; LDS:outstd_logic_vector(7downto0) );endLED;architectureBehavioralofLEDis-- 计数signalcount:std_logic_vector(25downto0);signalclk_temp:std_logic;signalQ_temp:std_logic;signalLDS_temp:std_logic_vector(7downto0):="00000001";beginprocess(GCLK,BTNU)--分频系数variableN...
signal abc:std_logic_vector(3 DOWNTO 0);PROCESS(E,D0,D1,D2,D3)BEGINIF E 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 在实体声明之前再加上一句use ieee.std_logic_unsigned.all;将signal abc: std_logic_vector(3 DOWNTO 0);改成variable abc: std_logic_vector(3 ...