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LIBRARY ieee;
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USE ieee.std_logic_1164.ALL;
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LIBRARY grlib;
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USE grlib.amba.ALL;
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USE grlib.stdlib.ALL;
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PACKAGE testbench_package IS
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COMPONENT tb_memory
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GENERIC (
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n_ahb_m : INTEGER;
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n_ahb_s : INTEGER);
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PORT (
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clk : IN STD_LOGIC;
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rstn : IN STD_LOGIC;
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ahbsi : OUT ahb_slv_in_type;
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ahbso : IN ahb_slv_out_vector := (OTHERS => ahbs_none);
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ahbmi : OUT ahb_mst_in_type;
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ahbmo : IN ahb_mst_out_vector := (OTHERS => ahbm_none));
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END COMPONENT;
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PROCEDURE APB_WRITE (
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SIGNAL clk : IN STD_LOGIC;
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CONSTANT pindex : IN INTEGER;
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SIGNAL apbi : OUT apb_slv_in_type;
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CONSTANT paddr : IN STD_LOGIC_VECTOR(31 DOWNTO 0);
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CONSTANT pwdata : IN STD_LOGIC_VECTOR(31 DOWNTO 0)
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);
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PROCEDURE APB_READ (
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SIGNAL clk : IN STD_LOGIC;
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CONSTANT pindex : IN INTEGER;
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SIGNAL apbi : OUT apb_slv_in_type;
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SIGNAL apbo : IN apb_slv_out_type;
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CONSTANT paddr : IN STD_LOGIC_VECTOR(31 DOWNTO 0);
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SIGNAL prdata : OUT STD_LOGIC_VECTOR(31 DOWNTO 0)
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);
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PROCEDURE AHB_READ (
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SIGNAL clk : IN STD_LOGIC;
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CONSTANT hindex : IN INTEGER;
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SIGNAL ahbmi : IN ahb_mst_in_type;
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SIGNAL ahbmo : OUT ahb_mst_out_type;
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CONSTANT haddr : IN STD_LOGIC_VECTOR(31 DOWNTO 0);
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SIGNAL hrdata : OUT STD_LOGIC_VECTOR(31 DOWNTO 0)
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);
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END testbench_package;
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PACKAGE BODY testbench_package IS
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PROCEDURE APB_WRITE (
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SIGNAL clk : IN STD_LOGIC;
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CONSTANT pindex : IN INTEGER;
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SIGNAL apbi : OUT apb_slv_in_type;
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CONSTANT paddr : IN STD_LOGIC_VECTOR(31 DOWNTO 0);
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CONSTANT pwdata : IN STD_LOGIC_VECTOR(31 DOWNTO 0)
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) IS
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BEGIN
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apbi.psel(pindex) <= '1';
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apbi.pwrite <= '1';
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apbi.penable <= '1';
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apbi.paddr <= paddr;
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apbi.pwdata <= pwdata;
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WAIT UNTIL clk = '0';
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WAIT UNTIL clk = '1';
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apbi.psel(pindex) <= '0';
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apbi.pwrite <= '0';
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apbi.penable <= '0';
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apbi.paddr <= (OTHERS => '0');
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apbi.pwdata <= (OTHERS => '0');
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WAIT UNTIL clk = '0';
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WAIT UNTIL clk = '1';
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END APB_WRITE;
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PROCEDURE APB_READ (
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SIGNAL clk : IN STD_LOGIC;
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CONSTANT pindex : IN INTEGER;
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SIGNAL apbi : OUT apb_slv_in_type;
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SIGNAL apbo : IN apb_slv_out_type;
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CONSTANT paddr : IN STD_LOGIC_VECTOR(31 DOWNTO 0);
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SIGNAL prdata : OUT STD_LOGIC_VECTOR(31 DOWNTO 0)
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) IS
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BEGIN
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apbi.psel(pindex) <= '1';
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apbi.pwrite <= '0';
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apbi.penable <= '1';
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apbi.paddr <= paddr;
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WAIT UNTIL clk = '0';
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WAIT UNTIL clk = '1';
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apbi.psel(pindex) <= '0';
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apbi.pwrite <= '0';
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apbi.penable <= '0';
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apbi.paddr <= (OTHERS => '0');
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WAIT UNTIL clk = '0';
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WAIT UNTIL clk = '1';
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prdata <= apbo.prdata;
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END APB_READ;
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PROCEDURE AHB_READ (
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SIGNAL clk : IN STD_LOGIC;
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CONSTANT hindex : IN INTEGER;
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SIGNAL ahbmi : IN ahb_mst_in_type;
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SIGNAL ahbmo : OUT ahb_mst_out_type;
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CONSTANT haddr : IN STD_LOGIC_VECTOR(31 DOWNTO 0);
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SIGNAL hrdata : OUT STD_LOGIC_VECTOR(31 DOWNTO 0)
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) IS
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BEGIN
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WAIT UNTIL clk = '1';
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ahbmo.HADDR <= haddr;
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ahbmo.HPROT <= "0011";
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ahbmo.HIRQ <= (OTHERS => '0');
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ahbmo.HCONFIG <= (0 => (OTHERS => '0'), OTHERS => (OTHERS => '0'));
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ahbmo.HINDEX <= hindex;
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ahbmo.HBUSREQ <= '1';
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ahbmo.HLOCK <= '1';
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ahbmo.HSIZE <= HSIZE_WORD;
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ahbmo.HBURST <= HBURST_SINGLE;
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ahbmo.HTRANS <= HTRANS_NONSEQ;
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ahbmo.HWRITE <= '0';
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WHILE ahbmi.HREADY = '0' LOOP
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WAIT UNTIL clk = '1';
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END LOOP;
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WAIT UNTIL clk = '1';
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--WAIT UNTIL clk = '1' AND ahbmi.HREADY = '1' AND ahbmi.HGRANT(hindex) = '1';
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ahbmo.HBUSREQ <= '0';
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ahbmo.HLOCK <= '0';
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ahbmo.HTRANS <= HTRANS_IDLE;
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WHILE ahbmi.HREADY = '0' LOOP
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WAIT UNTIL clk = '1';
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END LOOP;
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WAIT UNTIL clk = '1';
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hrdata <= ahbmi.HRDATA;
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--WAIT UNTIL clk = '1' AND ahbmi.HREADY = '1' AND ahbmi.HGRANT(hindex) = '1';
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ahbmo.HLOCK <= '0';
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WAIT UNTIL clk = '1';
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END AHB_READ;
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END testbench_package;
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