| Line 95... |
Line 95... |
-- string "UNUSED".
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-- string "UNUSED".
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--------------------------------------------------------------------------
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--------------------------------------------------------------------------
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library IEEE;
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library IEEE;
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use IEEE.std_logic_1164.all;
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use IEEE.std_logic_1164.all;
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use IEEE.std_logic_arith.all;
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use IEEE.numeric_std.all;
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use IEEE.std_logic_unsigned.all;
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--use work.LPM_COMPONENTS.all;
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--use work.LPM_COMPONENTS.all;
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use std.textio.all;
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use std.textio.all;
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entity LPM_ROM is
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entity LPM_ROM is
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generic (LPM_WIDTH : positive;
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generic (LPM_WIDTH : positive;
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| Line 288... |
Line 287... |
variable base, byte, rec_type, datain, addr, checksum: string(2 downto 1);
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variable base, byte, rec_type, datain, addr, checksum: string(2 downto 1);
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variable startadd: string(4 downto 1);
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variable startadd: string(4 downto 1);
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variable ibase: integer := 0;
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variable ibase: integer := 0;
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variable ibyte: integer := 0;
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variable ibyte: integer := 0;
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variable istartadd: integer := 0;
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variable istartadd: integer := 0;
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variable check_sum_vec, check_sum_vec_tmp: std_logic_vector(7 downto 0);
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variable check_sum_vec, check_sum_vec_tmp: unsigned(7 downto 0);
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begin
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begin
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-- INITIALIZE --
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-- INITIALIZE --
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if NOT(mem_init) then
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if NOT(mem_init) then
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-- INITIALIZE TO 0 --
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-- INITIALIZE TO 0 --
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for i in mem_data'LOW to mem_data'HIGH loop
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for i in mem_data'LOW to mem_data'HIGH loop
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| Line 317... |
Line 316... |
ASSERT FALSE
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ASSERT FALSE
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REPORT "[Line "& int_to_str(lineno) & "]:Illegal Intel Hex Format!"
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REPORT "[Line "& int_to_str(lineno) & "]:Illegal Intel Hex Format!"
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SEVERITY ERROR;
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SEVERITY ERROR;
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end if;
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end if;
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ibyte := hex_str_to_int(byte);
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ibyte := hex_str_to_int(byte);
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check_sum_vec := unsigned(check_sum_vec) + unsigned(CONV_STD_LOGIC_VECTOR(ibyte, 8));
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check_sum_vec := unsigned(check_sum_vec) + to_unsigned(ibyte, 8);
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READ(L=>buf, VALUE=>startadd, good=>booval);
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READ(L=>buf, VALUE=>startadd, good=>booval);
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if not (booval) then
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if not (booval) then
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ASSERT FALSE
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ASSERT FALSE
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REPORT "[Line "& int_to_str(lineno) & "]:Illegal Intel Hex Format! "
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REPORT "[Line "& int_to_str(lineno) & "]:Illegal Intel Hex Format! "
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SEVERITY ERROR;
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SEVERITY ERROR;
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end if;
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end if;
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istartadd := hex_str_to_int(startadd);
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istartadd := hex_str_to_int(startadd);
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addr(2) := startadd(4);
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addr(2) := startadd(4);
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addr(1) := startadd(3);
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addr(1) := startadd(3);
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check_sum_vec := unsigned(check_sum_vec) + unsigned(CONV_STD_LOGIC_VECTOR(hex_str_to_int(addr), 8));
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check_sum_vec := unsigned(check_sum_vec) + to_unsigned(hex_str_to_int(addr), check_sum_vec'length);
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addr(2) := startadd(2);
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addr(2) := startadd(2);
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addr(1) := startadd(1);
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addr(1) := startadd(1);
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check_sum_vec := unsigned(check_sum_vec) + unsigned(CONV_STD_LOGIC_VECTOR(hex_str_to_int(addr), 8));
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check_sum_vec := unsigned(check_sum_vec) + to_unsigned(hex_str_to_int(addr), check_sum_vec'length);
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READ(L=>buf, VALUE=>rec_type, good=>booval);
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READ(L=>buf, VALUE=>rec_type, good=>booval);
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if not (booval) then
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if not (booval) then
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ASSERT FALSE
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ASSERT FALSE
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REPORT "[Line "& int_to_str(lineno) & "]:Illegal Intel Hex Format! "
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REPORT "[Line "& int_to_str(lineno) & "]:Illegal Intel Hex Format! "
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SEVERITY ERROR;
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SEVERITY ERROR;
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end if;
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end if;
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check_sum_vec := unsigned(check_sum_vec) + unsigned(CONV_STD_LOGIC_VECTOR(hex_str_to_int(rec_type), 8));
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check_sum_vec := unsigned(check_sum_vec) + to_unsigned(hex_str_to_int(rec_type), check_sum_vec'length);
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else
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else
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ASSERT FALSE
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ASSERT FALSE
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REPORT "[Line "& int_to_str(lineno) & "]:Illegal Intel Hex Format! "
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REPORT "[Line "& int_to_str(lineno) & "]:Illegal Intel Hex Format! "
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SEVERITY ERROR;
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SEVERITY ERROR;
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end if;
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end if;
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| Line 360... |
Line 359... |
if not (booval) then
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if not (booval) then
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ASSERT FALSE
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ASSERT FALSE
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REPORT "[Line "& int_to_str(lineno) & "]:Illegal Intel Hex Format! "
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REPORT "[Line "& int_to_str(lineno) & "]:Illegal Intel Hex Format! "
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SEVERITY ERROR;
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SEVERITY ERROR;
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end if;
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end if;
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check_sum_vec := unsigned(check_sum_vec) + unsigned(CONV_STD_LOGIC_VECTOR(hex_str_to_int(datain), 8));
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check_sum_vec := unsigned(check_sum_vec) + to_unsigned(hex_str_to_int(datain), check_sum_vec'length);
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mem_data_tmp := mem_data_tmp * 256 + hex_str_to_int(datain);
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mem_data_tmp := mem_data_tmp * 256 + hex_str_to_int(datain);
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end loop;
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end loop;
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i := i + k;
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i := i + k;
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mem_data(ibase + istartadd) := CONV_STD_LOGIC_VECTOR(mem_data_tmp, lpm_width);
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mem_data(ibase + istartadd) := STD_LOGIC_VECTOR(to_unsigned(mem_data_tmp, lpm_width));
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istartadd := istartadd + 1;
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istartadd := istartadd + 1;
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end loop;
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end loop;
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when "01"=>
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when "01"=>
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exit;
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exit;
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when "02"=>
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when "02"=>
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| Line 384... |
Line 383... |
if not (booval) then
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if not (booval) then
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ASSERT FALSE
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ASSERT FALSE
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REPORT "[Line "& int_to_str(lineno) & "]:Illegal Intel Hex Format! "
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REPORT "[Line "& int_to_str(lineno) & "]:Illegal Intel Hex Format! "
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SEVERITY ERROR;
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SEVERITY ERROR;
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end if;
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end if;
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check_sum_vec := unsigned(check_sum_vec) + unsigned(CONV_STD_LOGIC_VECTOR(hex_str_to_int(base), 8));
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check_sum_vec := unsigned(check_sum_vec) + to_unsigned(hex_str_to_int(base), check_sum_vec'length);
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end loop;
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end loop;
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ibase := ibase * 16;
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ibase := ibase * 16;
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when OTHERS =>
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when OTHERS =>
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ASSERT FALSE
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ASSERT FALSE
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REPORT "[Line "& int_to_str(lineno) & "]:Illegal record type in Intel Hex File! "
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REPORT "[Line "& int_to_str(lineno) & "]:Illegal record type in Intel Hex File! "
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| Line 400... |
Line 399... |
REPORT "[Line "& int_to_str(lineno) & "]:Checksum is missing! "
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REPORT "[Line "& int_to_str(lineno) & "]:Checksum is missing! "
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SEVERITY ERROR;
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SEVERITY ERROR;
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end if;
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end if;
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check_sum_vec := unsigned(not (check_sum_vec)) + 1 ;
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check_sum_vec := unsigned(not (check_sum_vec)) + 1 ;
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check_sum_vec_tmp := CONV_STD_LOGIC_VECTOR(hex_str_to_int(checksum),8);
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check_sum_vec_tmp := to_unsigned(hex_str_to_int(checksum),8);
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if (unsigned(check_sum_vec) /= unsigned(check_sum_vec_tmp)) then
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if (unsigned(check_sum_vec) /= unsigned(check_sum_vec_tmp)) then
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ASSERT FALSE
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ASSERT FALSE
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REPORT "[Line "& int_to_str(lineno) & "]:Incorrect checksum!"
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REPORT "[Line "& int_to_str(lineno) & "]:Incorrect checksum!"
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SEVERITY ERROR;
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SEVERITY ERROR;
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| Line 414... |
Line 413... |
mem_init := TRUE;
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mem_init := TRUE;
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end if;
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end if;
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-- MEMORY FUNCTION --
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-- MEMORY FUNCTION --
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--if memenab = '1' then
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--if memenab = '1' then
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q_tmp <= mem_data(conv_integer(address_tmp));
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q_tmp <= mem_data(to_integer(UNSIGNED(address_tmp)));
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--else
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--else
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-- q_tmp <= (OTHERS => 'Z');
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-- q_tmp <= (OTHERS => 'Z');
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--end if;
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--end if;
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end process;
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end process;
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