well an integer type in VHDL has no bits, so how can you map an integer that has no specific bits to individual pins? I think quartus isnt that stupid though so you can do it, I personally just wouldnt risk it - its safer to be able to directly map them. --- Quote End ---...
question about integer type Subscribe More actions Altera_Forum Honored Contributor II 08-04-2011 09:51 PM 1,295 Views Hi ALL, I am wondering what is the largest value of an integer in vhdl?Thanks! Translate0 Kudos Reply
关于vhdl中integer消耗资源的一些讨论 源程序:注意红色字体为之后对比的中将做改动的语句 library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_unsigned.all; use ieee.std_logic_arith.all; entity control is port(clk:in std_logic; dip1:in std_logic; --bcd:out std_logic_vector(3 down...
WHEN "00" => NULL;WHEN "01" => Q<='0';--你定义的Q是std_logic类型，但你赋值的时候由于没加单引号，被认为是integer类型了，所以应加单引号，下一句也是 WHEN "10" => Q<='1';另外Q好像应该定义为buffer模式才行吧。
out_put是integer的子类型，取值范围是0~10。因此不能对其赋值"1111111"，只能赋值0~10中的某一个数。错误之处：if(check'event and check='1') then out_put<= "1111111";
将conv_integer(b（i）)改为conv_integer(b)，这个转换函数是将一个STD_LOGIC_VECTOR类型的数组转换成integer类型，而不能对一个数组元素b(i)进行转换。
a-The woman -妇女[translate] aError (10476): VHDL error at ymcs.vhd(34): type of identifier "a" does not agree with its usage as "integer" type 错误(10476) : VHDL错误在ymcs.vhd (34) : 标识符的类型“a”不与它的用法一致作为“整数”类型[translate]...
In the 2023.1 version, Synthesis does not provide any error. In the 2023.2 release, Synthesis provides the below error for this code. ERROR: [Synth 8-11585] Evaluated value has exceeded beyond integer type range When using the -vhdl2019 option, there should not be any error as the integer...
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In VHDL there is a difference between a single-bit vector and a scalar. In your case you are treating a std_logic_vector (0 downto 0) as if it were a std_logic. You cannot compare a std_logic_vector to a '1' or '0' value, however you can compare or assign one bit of ...