From: michael <michael>
Date: Sat, 10 Mar 2007 12:34:55 +0000 (+0000)
Subject: fifo
X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/raggedstone/commitdiff_plain/2825d08e6e5a5c0ba429f454065da84d6623cf9f

fifo
---

diff --git a/dhwk/source/FLAG_BUS.vhd b/dhwk/source/FLAG_BUS.vhd
index c312be7..dd95bb2 100644
--- a/dhwk/source/FLAG_BUS.vhd
+++ b/dhwk/source/FLAG_BUS.vhd
@@ -48,12 +48,12 @@ begin
 	begin 
 		if	(PCI_CLOCK'event	and	PCI_CLOCK	=	'1')	then 
 
-		FF1_S_EFn	<=	S_EFn;
-		FF1_S_HFn	<=	S_HFn;
-		FF1_S_FFn	<=	S_FFn;
-		FF1_R_EFn	<=	R_EFn;
-		FF1_R_HFn	<=	R_HFn;
-		FF1_R_FFn	<=	R_FFn;
+		FF1_S_EFn	<=	not S_EFn;
+		FF1_S_HFn	<=	not S_HFn;
+		FF1_S_FFn	<=	not S_FFn;
+		FF1_R_EFn	<=	not R_EFn;
+		FF1_R_HFn	<=	not R_HFn;
+		FF1_R_FFn	<=	not R_FFn;
 
 		end if;
 	end process; 	
diff --git a/dhwk/source/top.vhd b/dhwk/source/top.vhd
index e0ad093..3036632 100644
--- a/dhwk/source/top.vhd
+++ b/dhwk/source/top.vhd
@@ -16,14 +16,6 @@ entity dhwk is
              PCI_IDSEL : In    std_logic;
              PCI_IRDYn : In    std_logic;
              PCI_RSTn : In    std_logic;
-               R_EFn : In    std_logic;
-               R_FFn : In    std_logic;
-             R_FIFO_Q_OUT : In    std_logic_vector (7 downto 0);
-               R_HFn : In    std_logic;
-               S_EFn : In    std_logic;
-               S_FFn : In    std_logic;
-             S_FIFO_Q_OUT : In    std_logic_vector (7 downto 0);
-               S_HFn : In    std_logic;
              SERIAL_IN : In    std_logic;
              SPC_RDY_IN : In    std_logic;
              TAST_RESn : In    std_logic;
@@ -36,16 +28,6 @@ entity dhwk is
              PCI_SERRn : Out   std_logic;
              PCI_STOPn : Out   std_logic;
              PCI_TRDYn : Out   std_logic;
-             R_FIFO_D_IN : Out   std_logic_vector (7 downto 0);
-             R_FIFO_READn : Out   std_logic;
-             R_FIFO_RESETn : Out   std_logic;
-             R_FIFO_RTn : Out   std_logic;
-             R_FIFO_WRITEn : Out   std_logic;
-             S_FIFO_D_IN : Out   std_logic_vector (7 downto 0);
-             S_FIFO_READn : Out   std_logic;
-             S_FIFO_RESETn : Out   std_logic;
-             S_FIFO_RTn : Out   std_logic;
-             S_FIFO_WRITEn : Out   std_logic;
              SERIAL_OUT : Out   std_logic;
              SPC_RDY_OUT : Out   std_logic;
              TB_IDSEL : Out   std_logic;
@@ -82,6 +64,24 @@ architecture SCHEMATIC of dhwk is
    signal READ_SEL : std_logic_vector (1 downto 0);
    signal   AD_REG : std_logic_vector (31 downto 0);
    signal REG_OUT_XX7 : std_logic_vector (7 downto 0);
+   signal R_EFn : std_logic;
+   signal R_FFn : std_logic;
+   signal R_FIFO_Q_OUT : std_logic_vector (7 downto 0);
+   signal R_HFn : std_logic;
+   signal S_EFn : std_logic;
+   signal S_FFn : std_logic;
+   signal S_FIFO_Q_OUT : std_logic_vector (7 downto 0);
+   signal S_HFn : std_logic;
+   signal R_FIFO_D_IN : std_logic_vector (7 downto 0);
+   signal R_FIFO_READn : std_logic;
+   signal R_FIFO_RESETn : std_logic;
+   signal R_FIFO_RTn : std_logic;
+   signal R_FIFO_WRITEn : std_logic;
+   signal S_FIFO_D_IN : std_logic_vector (7 downto 0);
+   signal S_FIFO_READn : std_logic;
+   signal S_FIFO_RESETn : std_logic;
+   signal S_FIFO_RTn : std_logic;
+   signal S_FIFO_WRITEn : std_logic;
 
    component MESS_1_TB
       Port ( DEVSELn : In    std_logic;
@@ -197,6 +197,21 @@ architecture SCHEMATIC of dhwk is
              WRITE_XX7_6 : Out   std_logic );
    end component;
 
+component fifo_generator_v3_2
+        port (
+        clk: IN std_logic;
+        din: IN std_logic_VECTOR(7 downto 0);
+        rd_en: IN std_logic;
+        rst: IN std_logic;
+        wr_en: IN std_logic;
+        almost_empty: OUT std_logic;
+        almost_full: OUT std_logic;
+        dout: OUT std_logic_VECTOR(7 downto 0);
+        empty: OUT std_logic;
+        full: OUT std_logic;
+        prog_full: OUT std_logic);
+end component;
+
 begin
 
    I19 : MESS_1_TB
@@ -267,4 +282,27 @@ begin
                  WRITE_XX3_2=>WRITE_XX3_2, WRITE_XX5_4=>WRITE_XX5_4,
                  WRITE_XX7_6=>WRITE_XX7_6 );
 
+receive_fifo : fifo_generator_v3_2
+                port map (
+                        clk => PCI_CLOCK,
+                        din => R_FIFO_D_IN,
+                        rd_en => not R_FIFO_READn,
+                        rst => not R_FIFO_RESETn,
+                        wr_en => not R_FIFO_WRITEn,
+                        dout => R_FIFO_Q_OUT,
+                        empty => R_EFn,
+                        full => R_FFn,
+                        prog_full => R_HFn);
+
+send_fifo : fifo_generator_v3_2
+                port map (
+                        clk => PCI_CLOCK,
+                        din => S_FIFO_D_IN,
+                        rd_en => not S_FIFO_READn,
+                        rst => not S_FIFO_RESETn,
+                        wr_en => not S_FIFO_WRITEn,
+                        dout => S_FIFO_Q_OUT,
+                        empty => S_EFn,
+                        full => S_FFn,
+                        prog_full => S_HFn);
 end SCHEMATIC;