hello;
i m trying to run this vhdl code for reading .cmd file...while i m
trying to compile the code on the altera's max plusII software(student
software),it is showing error
File d:\maxw\code\93vhdllib\std\textio.vhd:Unsupported feature
error:access type is not supported
in d drive, i m not installing that software, i have this software
installed in c drive.....
can somebody can help me in this matter....please reply soon.....
-- -------------------------------------
-- Reads std_logic values from a file
-- -------------------------------------
library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_arith.all;
use std.textio.all;
use work.txt_util.all;
entity FILE_READ is
generic (
stim_file: string := "sim.cmd"
);
port(
CLK : in std_logic;
RST : in std_logic;
Y : out std_logic_vector(4 downto 0);
EOG : out std_logic
);
end FILE_READ;
-- I/O Dictionary
--
-- Inputs:
--
-- CLK: new cell needed
-- RST: reset signal, wait with reading till reset seq
complete
--
-- Outputs:
--
-- Y: Output vector
-- EOG: End Of Generation, all lines have been read from
the file
--
architecture read_from_file of FILE_READ is
file stimulus: TEXT open read_mode is stim_file;
begin
-- read data and control information from a file
receive_data: process
variable l: line;
variable s: string(y'range);
begin
EOG <= '0';
-- wait for Reset to complete
wait until RST='1';
wait until RST='0';
while not endfile(stimulus) loop
-- read digital data from input file
readline(stimulus, l);
read(l, s);
-- Y <= to_std_logic_vector(s);
wait until CLK = '1';
end loop;
-- print("I@FILE_READ: reached end of "& stim_file);
EOG <= '1';
wait;
end process receive_data;
end read_from_file;
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