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35 Threads found on edaboard.com: Subtype
Hi all: I am synthesizing a master interface. After synthesis the netlist has a STD_ULOGIC type defined like this type std_ulogic is ('U', 'X', '0', '1', 'Z', 'W', 'L', 'H', '-'); attribute ENUM_ENCODING of std_ulogic : type is "U D 0 1 Z D 0 1 D"; subtype std_logic_2 is std_ulogic range 'U' to '-' ; type std_logic_vector_2 is array (INTEG
This might be an obvious question, but, is there a label or 'lbl' subtype on metal 6? - - - Updated - - - Oh, I just saw your attachment. The cross doesn't seem to be overlapping the metal. Try putting the label right on top of the metal, it might not be attached to any metal and Calibre LVS is just dit
Someone like silly code. the first line is one of the most redundant bits of code I have ever seen. why do you make a subtype of real without setting a range you might as well just leave it at real. the natural range bit is telling users that the range of this vector, when declared, must be anything from 0 to integer'high. So signal a: ureal_vec
put your code like that ENTITY MOORE IS PORT(A,CLK,RST:IN BIT; F:OUT BIT); END MOORE; ARCHITECTURE FSMOF MOORE IS subtype STATE_TYPE IS STD_ LOGIC_VECTOR (2DOWNTO 0); SIGNAL STATE:STATE_TYPE; CONSTANT S0: STATE_TYPE:="001"; CONSTANT S1: STATE_TYPE:="010"; CONSTANT S2: STATE_TYPE:="100"; SIGNAL CURRENT_STATE, NEXT_STATE :STATE_TYPE; BEGIN
How are you setting up the Hex letters for the SSD's? Have you tried creating a register file and instantiating it with your constants? For example: subtype reg is std_logic_vector(6 downto 0); type reg_array is array (0 to 4) of reg; -- B(0)A(1)S(2)Y(3)S(4), where each letter represents a 7-bit slv If you h
One experience I have had is that I could leave out the optional subtype indication in Modelsim but the synthesis tool required it.
when i run lvs using calibre,i met : ************************************************************************************************************** INCORRECT INSTANCES DISC# LAYOUT NAME SOURCE NAME ************************************************************************************************************** 1 X16/C2765(19.435,17.290) C(mim_1p0) X
I have a VHDL signal defined like this : signal x unsigned : ( 3 downto 0 ) ; I want to define a subtybe of x named "sub_x" this signal will be able to receive only the following values : "0101" "0110" "0111" "1000" what is the correct syntax ? It would be easier (and likely clearer) to s
You find SIMOVERT MASTERDRIVES MC manuals KAK
Refer to the std_logic_1164 package. std_logic_vector is defined as: TYPE std_logic_vector IS ARRAY (NATURAL RANGE <>) OF std_logic; Is it a standard type then? I guess not because it is derived of std_logic (which is a subtype of std_ulogic), but everyone will say it is, as it is defined in std_logic_1164.
Yes you can. A subtype is still of the same type of the base type. Note, that because the in built functions have no knowledge of subtypes, the returned value (like C in this case) will be the base type. You will have to write your own function for it to return the subtype.
I've installed new PDK with same technology tsmc 0.13 um. The only thing changed was MIM capacitor to lower density capacitor from "1.5fF_MIM" to "1.0fF_MIM". When I copied the schematic and checked the Calibre LVS, the error came out is: bad component subtype: layout | source ------------------ MN(N2) | MN(ND) But this is not
conversion gives error code is stdtst.vhd library ieee; use ieee.std_logic_1164.all; use ieee.numeric_std.all; package intest is subtype bits is std_logic_vector(7 downto 0); function bconv(bits: std_logic_vector) return integer; end package intest; package body intest is function bconv(bits: in std_logic_vector) return i
Greetings! Please take a look at my function: constant ASCII_a: integer := 97; constant ASCII_z: integer := 122; subtype lower_case_character is integer range ASCII_a to ASCII_z; type word is array (0 to string_length - 1) of lower_case_character; function next_word (str: word) return word is variable ret: word; beg
yes and remove the subtype wordchr - it is completly pointless.
I use Cadence composer draw a "BUF" schematic, and lead to the layout XL(virtuoso XL) BUF layout. But when I did the LVS check with Calibre, it report the errors: bad component subtype: layout: source MP(P18LL) MP(P18) I don't know how to solve the problem. The layout was conn
Hello, I want to set initial values into part of a 2D array as follows, but ISE doesnt appear to alllow it. Here is what im doing: subtype T1 is Std_logic_vector (7 down to 0); type T1_ARRAY is arr....... of T1; attribute init: string; attritute init of T1_ARRAY(0) is "S"; The porlbem appears to be that ISE doesnt allow only pa
Hi, You limit the value for CounterAdd and CounterSubtract to be between 0 and 255 (subtype Count_range). So you forbit negative values. You can also not get values above 255, eg. CounterA = 254 and CounterB = 4 does not work. Devas
I'm getting the following error when compiling in ModelSim: Array type case expression must be of a locally static subtype. The error points to the first part of the case statement in the following code: library ieee; use IEEE.std_logic_1164.all; use IEEE.numeric_std.all; entity amplitude_lookup is generic (
Or perhaps try defining a type or subtype name in a package package MyComponentPack is subtype MyInt_t is natural range 0 to 32; end package; and use it wherever you need that kind of signal use work.MyComponentPack.all; ... port ( ... y : in MyInt_t; ...