如何在 VHDL 中初始化记录数组？

Question

我正在初始化一个记录数组，其中也包含一个字符串。我收到错误 HDLCompiler:806 第 109 行："text_passages" 附近的语法错误（下面代码的最后一行）。正确的初始化方式是什么？

type text_info is
    record
        text : string(1 to 15);
        x: integer;
        y: integer;
    end record;
constant init_text_info: text_info := (text => "               ", x => 0, y => 0);
type text_info_array is array(natural range <>) of text_info;

我的声明和初始化如下

signal text_passages : text_info_array(0 to 1) := (others => init_text_info);
text_passages(0) <= (text => "This is a Test.", x => 50, y => 50);

Answer 1

好吧，你在最后一行的末尾有一个额外的括号，但除此之外，没关系。（我怀疑你报告的错误信息是由那个括号引起的。）最后一行应该是：

text_passages(0) <= (text => "This is a Test.", x => 50, y => 50);

一个[MCVE]：

entity E is
end entity ;

architecture A of E is

  type text_info is
    record
        text : string(1 to 15);
        x: integer;
        y: integer;
    end record;
  constant init_text_info: text_info := (text => "               ", x => 0, y => 0);
  type text_info_array is array(natural range <>) of text_info;
  signal text_passages : text_info_array(0 to 1) := (others => init_text_info);

begin

  text_passages(0) <= (text => "This is a Test.", x => 50, y => 50);

end architecture A;

https://www.edaplayground.com/x/4ARJ

（提交 MCVE 总是最好的。）

如何在 VHDL 中初始化记录数组？

How to initialize an array of record in VHDL?

arrays

record

vhdl