在VHDL中,将integer类型转换为std_logic类型涉及几个步骤,因为std_logic是一个单比特的逻辑值,而integer可以是多比特的整数。为了将integer转换为std_logic,我们通常需要考虑integer的某一位(例如最低位)或者根据条件决定std_logic的值(例如,integer是否为0)。 以下是一个详细的步骤说明和示例代码,展示如何将integer转...
I've some issues to convert integer to std_logic or std_logic_vector. I need to do so for a testbench which reads stimuli (binary or positive integers) in a text file, stores it as integer and needs to translate it to std_logic or std_logic_vector. I can ...
https://community.intel.com/t5/Programmable-Devices/VHDL-integer-to-std-logic-or-std-logic-vector-conversion/m-p/177328#M56780<description><P>Hello, </P><P></P>I've some issues to convert integer to std_logic or std_logic_vector. <P></P>I need to do so for a testben...
read(v_in_line, v_din); din <=std_logic_vector(to_signed(v_din,32));elsedin <= (others=>'0');endif;endif;endif;endprocess; 最初是这种写法出现问题的。 第二种写法 useieee.std_logic_textio.all;usestd.textio.all;useieee.std_logic_unsigned.all;useieee.std_logic_arith.all;--filefi...
https://www.xilinx.com/support/answers/45213.html 先将INTEGER根据需求使用 to_signed(interger,signed'length) 转为 SIGNED 或者使用 to_unsigned(integer,unsigned'length) 转为UNSIGNED，然后使用STD_LOGIC_VECTOR(signed/unsigned)转为整数。例:https://www.nandland.com/vhdl/examples/example-...
我比较了一下输入分别是range 0 to 15和range 0 to 10 和std_logic_vector(3 downto 0)的综合后...
use ieee.std_logic_arith.all; entity control is port(clk:in std_logic; dip1:in std_logic; --bcd:out std_logic_vector(3 downto 0); --bcd:out integer range 1 to 9 ; bcd:out integer ; en:out std_logic); end entity control; ...
vhdl function 内能定义时序逻辑么 vhdl conv_integer,1、预定义的数据类型std库的standard包集:定义了位(BIT)、布尔(Boolean)、整数(integer)和实数(real)数据类型。ieee库的std_logic_1164包集:定义了std_logic和std_ulogic数据类型。ieee库的std_logic_arith包
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 ...
VHDL语言将integer类型转换成logic型数据使用IEEE标准库numeric_std 需要进行两次转换 use ieee.numeric_std...