later in the code I convert the integer to std_logic_vector; signal D_to_TX_int : std_logic_vector (15 downto 0); signal StartTX_int : std_logic_vector (0 downto 0); begin D_to_TX_int <= conv_std_logic_vector(D_to_TX,16); StartTX_int <= conv_std_logic_vector(Star...
先将STD_LOGIC_VECTOR根据需求使用signed()转为 SIGNED 或者 使用 unsigned() 转为 UNSIGNED (signed() 和 unsigned() 在 numeric_std 中),然后使用 conv_integer() 或者 to_integer() 转为整数。conv_integer() 和 to_integer() 二者分别在不同的Library中。例:https://www.xil...
= std_logic_vector(to_unsigned(reset_hw_i, 1)); print("Integer read : 0x" & str(reset_hw_i, 16)); print("std_logic_vector 0x" & str(reset_hwVar)); reset_hw_o <= reset_hwVar; -- Cast an integer to an unsigned on 16 bit and cast it again to std_logic_...
( clk : in std_logic; rst_n : in std_logic; start_in : in std_logic; --- std_logic inputs --- reset_hw_i : in integer; wdogInitDelay_i : in integer; --- std_logic outputs --- reset_hw_o : out std_logic; wdogInitDelay_o : out std_logic_vector(15 downto 0) ); ...
在VHDL中,std_logic_vector 类型的数据通常用于表示位级数据,而 integer 类型则用于表示整数。将 std_logic_vector 转换为 integer 可能涉及一些位操作和符号扩展,以确保转换的正确性。以下是一个详细的过程,包括如何在VHDL中实现这种转换: 1. 理解VHDL中std_logic_vector的数据表示 std_logic_vector 是一个由 std...
libraryIEEE;useIEEE.std_logic_1164.all;useIEEE.numeric_std.all; 変換コード signals_stdlogicvector:std_logic_vector(9downto0):=(others=>'0');signals_integer:integerrange0to1023:=0;-- std_logic_vector ⇒ integers_integer<=to_integer(unsigned(s_stdlogicvector));-- unsignedとして扱いた...
4.本人做了这样的转换conv_std_logic_vector (conv_integer (data),16),data是16范围内的有符号数,但是接口是32位的标准矢量形式(std_logic_vector(31 downto 0)刚开始包括的是std_logic_unsigned 包,发现数据变得面目全非了,想来想去,认为conv_integer (data)的原因,就该了下包,结果就正确了。
I am fairly new to VHDL and have reviewed numerous codes and have tried to learn various programs [Xilinx, Altera, etc.,] What I have found in many examples is the use of 'std_logic_vector' used as counters versus using 'integers'. Is there an advantage or reason for this type of ...
c<=conv_std_logic_vector(100,6)---(100)2c=(01100100) 输出结果:a=110001,b=111110,c=100100 4.本⼈做了这样的转换conv_std_logic_vector (conv_integer (data),16),data是16范围内的有符号数,但是接⼝是32位的标准⽮量形式(std_logic_vector(31 downto 0)刚开始包括的是...
port (clk : in STD_LOGIC;a : in STD_LOGIC_VECTOR (1 downto 0);b : in STD_LOGIC_VECTOR (1 downto 0);c : out STD_LOGIC_VECTOR (1 downto 0));end exp_adder;architecture Behavioral of exp is SIGNAL temp : Integer;begin process(clk)begin if clk'event and clk = '1...