[SOLVED] error:metavalue detected

[soujanya04]

Hi all,

I am using xilinx ISE 14.7 and spartan 3e

The part of my VHDL code where I got error is::

---

Code VHDL - [expand]
1
2
3
4
5
if (kk<=x"010000")then
    bh := x"00";
else
    bh := x"01";
end if;

---

where

---

Code VHDL - [expand]
1
2
variable kk: sfixed(22 downto -1);
variable bh: sfixed(6 downto -1);

---

and packages used are::

---

Code VHDL - [expand]
1
2
3
library ieee_proposed;
use ieee_proposed.fixed_float_types.all;
use ieee_proposed.fixed_pkg.all;

---

Error I got in isim simulation is:

Warning: fixed_pkg:"<=": metavalue detected, returning FALSE

Error when synthesised :

ERROR:Xst:1749 - "D:/Xilinx proj files/mtech_2/fixed_pkg_c.vhdl" line 2083: error: fixed_pkg: Vector passed using a "to" range, expected is "downto"

Please help me with this issue., what is the error and problem in my code?

 

[TrickyDicky]

The simulation warning comes about because kk has a value that is not all 0/1. Probably some unitialised value.

for the 2nd warning - did you take the Xilinx version of the fixed point packages?