Pinconfig of the FPGA to HPS. Some eroors in IOBUF

Hello,

I wanted to drive the bidirectional signals from fpga to hps and hps to fpga. But I could not able to do with my code here. Please have a look my code and give me some tips.

THIS CODE IS WORKING PERFECTLY, bUT IT WORKS FOR ONLY ONE DIRECTION, i WANTED TO SEE BIDIRECTIONAL RESPONCE FOR THAT I NEED TO USE IOBUF COMPONENT. I HAVE NO IDEA HOW TO IMPLEMENT THAT COMPONENT IN MY CODE.

PLEASE HAVE ALOOK AND HELP ME.

library IEEE;

use IEEE.STD_LOGIC_1164.ALL;

use ieee.std_logic_unsigned.all;

use ieee.numeric_std.all;

entity pinconfig is

port(

pins :in std_logic_vector (13 downto 0):="00000000000000";

signalsin :inout std_logic_vector (35 downto 0);

signalsout :inout std_logic_vector (35 downto 0)

);

end pinconfig;

architecture behav of pinconfig is

component iobuffer

PORT

(

datain : IN STD_LOGIC_VECTOR (35 DOWNTO 0);

oe : IN STD_LOGIC_VECTOR (35 DOWNTO 0);

bidir : INOUT STD_LOGIC_VECTOR (35 DOWNTO 0);

dataout : OUT STD_LOGIC_VECTOR (35 DOWNTO 0)

 );

end component;

type c is array (0 to 35, 0 to 2) of integer range 0 to 35;

signal config : c :=

((0,0,0),(1,1,0),(2,2,0),(3,3,0),(4,4,3),(5,5,0),(6,6,3),(7,7,3),(8,8,3),(9,9,3),(10,10,3),(11,11,3),

(12,12,3),(13,13,0),(14,14,3),(15,15,3),(16,16,3),(17,17,3),(18,18,1),(19,19,3),(20,20,3),(21,21,3),(22,22,3),(23,23,3),

(24,24,3),(25,25,3),(26,26,3),(27,27,0),(28,28,3),(29,29,0),(30,30,0),(31,31,0),(32,32,0),(33,33,0),(34,34,0),(35,35,3));

--config(x,x,0) = out (fpga => gpio)

--config(x,x,1) = in (fpga <= gpio)

--config(x,x,2) = constant low (pin)

--config(x,x,3) = high-Z (pin)

signal temp: std_logic_vector (35 downto 0);

begin

process (pins)

begin

--pins(13 downto 8) = mapped to

--pins(7 downto 2) = mapped from

--pins(1 downto 0) = out, in or high-Z

config(to_integer(unsigned(pins(13 downto 8))),1) <= to_integer(unsigned(pins(7 downto 2)));

config(to_integer(unsigned(pins(13 downto 8))),2) <= to_integer(unsigned(pins(1 downto 0)));

end process;

process (signalsin, signalsout)

begin

case config(0,2) is

when 0 => temp(config(0,0)) <= signalsin(config(0,1));

when 1 => temp(config(0,1)) <= signalsout(config(0,0));

when others =>

end case;

case config(1,2) is

when 0 => temp(config(1,0)) <= signalsin(config(1,1));

when 1 => temp(config(1,1)) <= signalsout(config(1,0));

when others =>

end case;

case config(2,2) is

when 0 => temp(config(2,0)) <= signalsin(config(2,1));

when 1 => temp(config(2,1)) <= signalsout(config(2,0));

when others =>

end case;

case config(3,2) is

when 0 => temp(config(3,0)) <= signalsin(config(3,1));

when 1 => temp(config(3,1)) <= signalsout(config(3,0));

when others =>

end case;

case config(4,2) is

when 0 => temp(config(4,0)) <= signalsin(config(4,1));

when 1 => temp(config(4,1)) <= signalsout(config(4,0));

when others =>

end case;

** LIKE 36 PINS I WROTE CODE**

end process;

process (temp)

begin

case config(0,2) is

when 0 => signalsout(config(0,0)) <= temp(config(0,0));

when 1 => signalsin(config(0,1)) <= temp(config(0,1));

when 2 => signalsout(config(0,0)) <= '0';

when others => signalsout(config(0,0)) <= 'Z';

end case;case config(1,2) is

when 0 => signalsout(config(1,0)) <= temp(config(1,0));

when 1 => signalsin(config(1,1)) <= temp(config(1,1));

when 2 => signalsout(config(1,0)) <= '0';

when others => signalsout(config(1,0)) <= 'Z';

end case;case config(2,2) is

when 0 => signalsout(config(2,0)) <= temp(config(2,0));

when 1 => signalsin(config(2,1)) <= temp(config(2,1));

when 2 => signalsout(config(2,0)) <= '0';

when others => signalsout(config(2,0)) <= 'Z';

end case;case config(3,2) is

when 0 => signalsout(config(3,0)) <= temp(config(3,0));

when 1 => signalsin(config(3,1)) <= temp(config(3,1));

when 2 => signalsout(config(3,0)) <= '0';

when others => signalsout(config(3,0)) <= 'Z';

end case;case config(4,2) is

when 0 => signalsout(config(4,0)) <= temp(config(4,0));

when 1 => signalsin(config(4,1)) <= temp(config(4,1));

when 2 => signalsout(config(4,0)) <= '0';

when others => signalsout(config(4,0)) <= 'Z';

** HERE ALSO SAME LIKE 36 PINS CODE**

end case;

end process;

end behav;

** See in attached file for normal response and input force response and output force response **