From 46b6b38e27b35fd4644e42b3f3a97b75c3c880e7 Mon Sep 17 00:00:00 2001
From: Erik Kooistra <kooistra@astron.nl>
Date: Tue, 27 May 2014 11:26:33 +0000
Subject: [PATCH] Ported common FIFO IP from
/home/kooistra/svnroot/UniBoard_FP7/UniBoard/trunk to
/home/kooistra/svnroot/UniBoard_FP7/RadioHDL/trunk and verified it with
tb_common_fifo_dc_mixed_widths.vhd.
---
libraries/base/common/hdllib.cfg | 25 ++--
.../base/common/src/vhdl/common_fifo_dc.vhd | 94 ++++++++++++-
.../src/vhdl/common_fifo_dc_mixed_widths.vhd | 94 ++++++++++++-
.../base/common/src/vhdl/common_fifo_sc.vhd | 126 +++++++++++++++++-
.../altera/altera_mf/altera_mf_fifo_dc.vhd | 22 +--
.../altera_mf_fifo_dc_mixed_widths.vhd | 12 +-
.../altera/altera_mf/altera_mf_fifo_sc.vhd | 10 +-
.../technology/altera/altera_mf/hdllib.cfg | 7 +-
libraries/technology/fifo/hdllib.cfg | 4 +-
9 files changed, 347 insertions(+), 47 deletions(-)
diff --git a/libraries/base/common/hdllib.cfg b/libraries/base/common/hdllib.cfg
index dcb2f83396..fde6fb7325 100644
--- a/libraries/base/common/hdllib.cfg
+++ b/libraries/base/common/hdllib.cfg
@@ -1,6 +1,6 @@
hdl_lib_name = common
hdl_library_clause_name = common_lib
-hdl_lib_uses = technology tech_memory tst
+hdl_lib_uses = technology tech_memory tech_fifo tst
build_sim_dir = $HDL_BUILD_DIR
build_synth_dir =
@@ -13,9 +13,6 @@ synth_files =
$UNB/Firmware/modules/common/src/vhdl/common_lfsr_sequences_pkg.vhd
$UNB/Firmware/modules/common/src/vhdl/common_components_pkg.vhd
- $UNB/Firmware/modules/MegaWizard/fifo_sc/fifo_sc.vhd
- $UNB/Firmware/modules/MegaWizard/fifo_dc/fifo_dc.vhd
- $UNB/Firmware/modules/MegaWizard/fifo_dc/fifo_dc_mixed_widths.vhd
$UNB/Firmware/modules/MegaWizard/arith/lut_add_sub.vhd
$UNB/Firmware/modules/MegaWizard/arith/dsp_add_sub.vhd
$UNB/Firmware/modules/MegaWizard/arith/dsp_mult_add2.vhd
@@ -24,6 +21,11 @@ synth_files =
$UNB/Firmware/modules/common/src/ip/MegaWizard/iobuf_in.vhd
+ $UNB/Firmware/modules/common/src/vhdl/common_async.vhd
+ $UNB/Firmware/modules/common/src/vhdl/common_async_slv.vhd
+ $UNB/Firmware/modules/common/src/vhdl/common_areset.vhd
+ $UNB/Firmware/modules/common/src/vhdl/common_acapture.vhd
+ $UNB/Firmware/modules/common/src/vhdl/common_acapture_slv.vhd
$UNB/Firmware/modules/common/src/vhdl/common_pipeline.vhd
$UNB/Firmware/modules/common/src/vhdl/common_pipeline_sl.vhd
$UNB/Firmware/modules/common/src/vhdl/common_pipeline_integer.vhd
@@ -39,6 +41,10 @@ synth_files =
src/vhdl/common_ram_r_w.vhd
src/vhdl/common_rom.vhd
+ src/vhdl/common_fifo_sc.vhd
+ src/vhdl/common_fifo_dc.vhd
+ src/vhdl/common_fifo_dc_mixed_widths.vhd
+
$UNB/Firmware/modules/common/src/vhdl/common_wideband_data_scope.vhd
$UNB/Firmware/modules/common/src/vhdl/common_iobuf_in.vhd
$UNB/Firmware/modules/common/src/vhdl/common_iobuf_in_a_stratix4.vhd
@@ -47,11 +53,6 @@ synth_files =
$UNB/Firmware/modules/common/src/vhdl/common_ddio_out.vhd
$UNB/Firmware/modules/common/src/vhdl/common_ddio_out_a_stratix4.vhd
$UNB/Firmware/modules/common/src/vhdl/common_inout.vhd
- $UNB/Firmware/modules/common/src/vhdl/common_async.vhd
- $UNB/Firmware/modules/common/src/vhdl/common_async_slv.vhd
- $UNB/Firmware/modules/common/src/vhdl/common_areset.vhd
- $UNB/Firmware/modules/common/src/vhdl/common_acapture.vhd
- $UNB/Firmware/modules/common/src/vhdl/common_acapture_slv.vhd
$UNB/Firmware/modules/common/src/vhdl/common_fanout.vhd
$UNB/Firmware/modules/common/src/vhdl/common_fanout_tree.vhd
$UNB/Firmware/modules/common/src/vhdl/common_ddreg.vhd
@@ -121,12 +122,6 @@ synth_files =
$UNB/Firmware/modules/common/src/vhdl/common_rl_increase.vhd
$UNB/Firmware/modules/common/src/vhdl/common_rl_register.vhd
$UNB/Firmware/modules/common/src/vhdl/common_fifo_rd.vhd
- $UNB/Firmware/modules/common/src/vhdl/common_fifo_sc.vhd
- $UNB/Firmware/modules/common/src/vhdl/common_fifo_sc_a_stratix4.vhd
- $UNB/Firmware/modules/common/src/vhdl/common_fifo_dc_mixed_widths.vhd
- $UNB/Firmware/modules/common/src/vhdl/common_fifo_dc_mixed_widths_a_stratix4.vhd
- $UNB/Firmware/modules/common/src/vhdl/common_fifo_dc.vhd
- $UNB/Firmware/modules/common/src/vhdl/common_fifo_dc_a_stratix4.vhd
$UNB/Firmware/modules/common/src/vhdl/common_blockreg.vhd
$UNB/Firmware/modules/common/src/vhdl/common_fifo_dc_lock_control.vhd
$UNB/Firmware/modules/common/src/vhdl/common_mem_mux.vhd
diff --git a/libraries/base/common/src/vhdl/common_fifo_dc.vhd b/libraries/base/common/src/vhdl/common_fifo_dc.vhd
index db6b44768a..67242f2b23 100644
--- a/libraries/base/common/src/vhdl/common_fifo_dc.vhd
+++ b/libraries/base/common/src/vhdl/common_fifo_dc.vhd
@@ -21,12 +21,14 @@
-- Purpose: Dual clock FIFO
-LIBRARY IEEE, common_lib;
+LIBRARY IEEE, technology_lib, tech_fifo_lib;
USE IEEE.STD_LOGIC_1164.ALL;
-USE common_lib.common_pkg.ALL;
+USE work.common_pkg.ALL;
+USE technology_lib.technology_select_pkg.ALL;
ENTITY common_fifo_dc IS
GENERIC (
+ g_technology : NATURAL := c_tech_select_default;
g_note_is_ful : BOOLEAN := TRUE; -- when TRUE report NOTE when FIFO goes full, fifo overflow is always reported as FAILURE
g_fail_rd_emp : BOOLEAN := FALSE; -- when TRUE report FAILURE when read from an empty FIFO
g_dat_w : NATURAL := 36;
@@ -48,3 +50,91 @@ ENTITY common_fifo_dc IS
);
END common_fifo_dc;
+
+ARCHITECTURE str of common_fifo_dc IS
+
+ CONSTANT c_nof_words : NATURAL := 2**ceil_log2(g_nof_words); -- ensure size is power of 2 for dual clock FIFO
+
+ SIGNAL wr_rst : STD_LOGIC;
+ SIGNAL wr_init : STD_LOGIC;
+ SIGNAL wr_en : STD_LOGIC;
+ SIGNAL rd_en : STD_LOGIC;
+ SIGNAL ful : STD_LOGIC;
+ SIGNAL emp : STD_LOGIC;
+
+ SIGNAL nxt_rd_val : STD_LOGIC;
+
+BEGIN
+
+ -- Control logic copied from LOFAR common_fifo_dc(virtex4).vhd
+
+ -- Need to make sure the reset lasts at least 3 cycles (see fifo_generator_ug175.pdf)
+ -- Wait at least 4 cycles after reset release before allowing FIFO wr_en (see fifo_generator_ug175.pdf)
+
+ -- Use common_areset to:
+ -- . asynchronously detect rst even when the wr_clk is stopped
+ -- . synchronize release of rst to wr_clk domain
+ -- Using common_areset is equivalent to using common_async with same signal applied to rst and din.
+ u_wr_rst : ENTITY work.common_areset
+ GENERIC MAP (
+ g_rst_level => '1',
+ g_delay_len => 3
+ )
+ PORT MAP (
+ in_rst => rst,
+ clk => wr_clk,
+ out_rst => wr_rst
+ );
+
+ -- Delay wr_init to ensure that FIFO ful has gone low after reset release
+ u_wr_init : ENTITY work.common_areset
+ GENERIC MAP (
+ g_rst_level => '1',
+ g_delay_len => 4
+ )
+ PORT MAP (
+ in_rst => wr_rst,
+ clk => wr_clk,
+ out_rst => wr_init -- assume init has finished g_delay_len cycles after release of wr_rst
+ );
+
+ -- The FIFO under read and over write protection are kept enabled in the MegaWizard
+ wr_en <= wr_req AND NOT wr_init; -- check on NOT ful is not necessary when overflow_checking="ON" (Altera) or according to fifo_generator_ug175.pdf (Xilinx)
+ rd_en <= rd_req; -- check on NOT emp is not necessary when underflow_checking="ON" (Altera)
+
+ nxt_rd_val <= rd_req AND NOT emp; -- check on NOT emp is necessary for rd_val
+
+ wr_ful <= ful WHEN wr_init='0' ELSE '0';
+
+ rd_emp <= emp;
+
+ p_rd_clk : PROCESS(rd_clk)
+ BEGIN
+ IF rising_edge(rd_clk) THEN
+ rd_val <= nxt_rd_val;
+ END IF;
+ END PROCESS;
+
+ u_fifo : ENTITY tech_fifo_lib.tech_fifo_dc
+ GENERIC MAP (
+ g_technology => g_technology,
+ g_dat_w => g_dat_w,
+ g_nof_words => c_nof_words
+ )
+ PORT MAP (
+ aclr => wr_rst, -- MegaWizard fifo_dc seems to use aclr synchronous with wr_clk
+ data => wr_dat,
+ rdclk => rd_clk,
+ rdreq => rd_en,
+ wrclk => wr_clk,
+ wrreq => wr_en,
+ q => rd_dat,
+ rdempty => emp,
+ rdusedw => rdusedw,
+ wrfull => ful,
+ wrusedw => wrusedw
+ );
+
+ proc_common_fifo_asserts("common_fifo_dc", g_note_is_ful, g_fail_rd_emp, wr_rst, wr_clk, ful, wr_en, rd_clk, emp, rd_en);
+
+END str;
diff --git a/libraries/base/common/src/vhdl/common_fifo_dc_mixed_widths.vhd b/libraries/base/common/src/vhdl/common_fifo_dc_mixed_widths.vhd
index 12e807c9e1..00caf37db2 100644
--- a/libraries/base/common/src/vhdl/common_fifo_dc_mixed_widths.vhd
+++ b/libraries/base/common/src/vhdl/common_fifo_dc_mixed_widths.vhd
@@ -40,12 +40,14 @@
-- is not a power of 2 multiple of g_wr_dat_w. After that g_nof_words have
-- been written to the FIFO the rdusedw will wrap and the output goes wrong.
-LIBRARY IEEE, common_lib;
+LIBRARY IEEE, technology_lib, tech_fifo_lib;
USE IEEE.STD_LOGIC_1164.ALL;
-USE common_lib.common_pkg.ALL;
+USE work.common_pkg.ALL;
+USE technology_lib.technology_select_pkg.ALL;
ENTITY common_fifo_dc_mixed_widths IS
GENERIC (
+ g_technology : NATURAL := c_tech_select_default;
g_note_is_ful : BOOLEAN := TRUE; -- when TRUE report NOTE when FIFO goes full, fifo overflow is always reported as FAILURE
g_fail_rd_emp : BOOLEAN := FALSE; -- when TRUE report FAILURE when read from an empty FIFO
g_nof_words : NATURAL := c_bram_m9k_fifo_depth; -- FIFO size in nof wr_dat words
@@ -68,3 +70,91 @@ ENTITY common_fifo_dc_mixed_widths IS
);
END common_fifo_dc_mixed_widths;
+
+ARCHITECTURE str of common_fifo_dc_mixed_widths IS
+
+ CONSTANT c_nof_words : NATURAL := 2**ceil_log2(g_nof_words); -- ensure size is power of 2 for dual clock FIFO
+
+ SIGNAL wr_rst : STD_LOGIC;
+ SIGNAL wr_init : STD_LOGIC;
+ SIGNAL wr_en : STD_LOGIC;
+ SIGNAL rd_en : STD_LOGIC;
+ SIGNAL ful : STD_LOGIC;
+ SIGNAL emp : STD_LOGIC;
+
+ SIGNAL nxt_rd_val : STD_LOGIC;
+
+BEGIN
+
+ -- Control logic copied from LOFAR common_fifo_dc(virtex4).vhd
+
+ -- Need to make sure the reset lasts at least 3 cycles (see fifo_generator_ug175.pdf).
+ -- Wait at least 4 cycles after reset release before allowing FIFO wr_en (see fifo_generator_ug175.pdf)
+
+ -- Use common_areset to:
+ -- . asynchronously detect rst even when the wr_clk is stopped
+ -- . synchronize release of rst to wr_clk domain
+ -- Using common_areset is equivalent to using common_async with same signal applied to rst and din.
+ u_wr_rst : ENTITY work.common_areset
+ GENERIC MAP (
+ g_rst_level => '1',
+ g_delay_len => 3
+ )
+ PORT MAP (
+ in_rst => rst,
+ clk => wr_clk,
+ out_rst => wr_rst
+ );
+
+ -- Delay wr_init to ensure that FIFO ful has gone low after reset release
+ u_wr_init : ENTITY work.common_areset
+ GENERIC MAP (
+ g_rst_level => '1',
+ g_delay_len => 4
+ )
+ PORT MAP (
+ in_rst => wr_rst,
+ clk => wr_clk,
+ out_rst => wr_init -- assume init has finished g_delay_len cycles after release of wr_rst
+ );
+
+ -- The FIFO under read and over write protection are kept enabled in the MegaWizard
+ wr_en <= wr_req AND NOT wr_init; -- check on NOT ful is not necessary according to fifo_generator_ug175.pdf
+ rd_en <= rd_req; -- check on NOT emp is not necessary
+
+ nxt_rd_val <= rd_req AND NOT emp; -- check on NOT emp is necessary for rd_val
+
+ wr_ful <= ful;
+ rd_emp <= emp;
+
+ p_rd_clk : PROCESS(rd_clk)
+ BEGIN
+ IF rising_edge(rd_clk) THEN
+ rd_val <= nxt_rd_val;
+ END IF;
+ END PROCESS;
+
+ u_fifo : ENTITY tech_fifo_lib.tech_fifo_dc_mixed_widths
+ GENERIC MAP (
+ g_technology => g_technology,
+ g_nof_words => c_nof_words,
+ g_wrdat_w => g_wr_dat_w,
+ g_rddat_w => g_rd_dat_w
+ )
+ PORT MAP (
+ aclr => wr_rst, -- MegaWizard fifo_dc_mixed_widths seems to use aclr synchronous with wr_clk
+ data => wr_dat,
+ rdclk => rd_clk,
+ rdreq => rd_en,
+ wrclk => wr_clk,
+ wrreq => wr_en,
+ q => rd_dat,
+ rdempty => emp,
+ rdusedw => rdusedw,
+ wrfull => ful,
+ wrusedw => wrusedw
+ );
+
+ proc_common_fifo_asserts("common_fifo_dc_mixed_widths", g_note_is_ful, g_fail_rd_emp, wr_rst, wr_clk, ful, wr_en, rd_clk, emp, rd_en);
+
+END str;
diff --git a/libraries/base/common/src/vhdl/common_fifo_sc.vhd b/libraries/base/common/src/vhdl/common_fifo_sc.vhd
index 020b635afa..b6800db815 100644
--- a/libraries/base/common/src/vhdl/common_fifo_sc.vhd
+++ b/libraries/base/common/src/vhdl/common_fifo_sc.vhd
@@ -21,12 +21,14 @@
-- Purpose: Single clock FIFO
-LIBRARY IEEE, common_lib;
+LIBRARY IEEE, technology_lib, tech_fifo_lib;
USE IEEE.STD_LOGIC_1164.ALL;
-USE common_lib.common_pkg.ALL;
+USE work.common_pkg.ALL;
+USE technology_lib.technology_select_pkg.ALL;
ENTITY common_fifo_sc IS
GENERIC (
+ g_technology : NATURAL := c_tech_select_default;
g_note_is_ful : BOOLEAN := TRUE; -- when TRUE report NOTE when FIFO goes full, fifo overflow is always reported as FAILURE
g_fail_rd_emp : BOOLEAN := FALSE; -- when TRUE report FAILURE when read from an empty FIFO
g_use_lut : BOOLEAN := FALSE; -- when TRUE then force using LUTs via Altera eab="OFF",
@@ -53,3 +55,123 @@ ENTITY common_fifo_sc IS
);
END common_fifo_sc;
+
+ARCHITECTURE str OF common_fifo_sc IS
+
+ CONSTANT c_use_eab : STRING := sel_a_b(g_use_lut, "OFF", "ON"); -- when g_use_lut=TRUE then force using LUTs via Altera eab="OFF", else default to ram_block_type = "AUTO"
+
+ CONSTANT c_fifo_af_latency : NATURAL := 1; -- pipeline register wr_aful
+ CONSTANT c_fifo_af_margin : NATURAL := g_af_margin+c_fifo_af_latency; -- FIFO almost full level
+
+ SIGNAL fifo_rst : STD_LOGIC;
+ SIGNAL fifo_init : STD_LOGIC;
+ SIGNAL fifo_wr_en : STD_LOGIC;
+ SIGNAL nxt_fifo_wr_en : STD_LOGIC;
+ SIGNAL fifo_wr_dat : STD_LOGIC_VECTOR(g_dat_w-1 DOWNTO 0);
+ SIGNAL nxt_fifo_wr_dat : STD_LOGIC_VECTOR(fifo_wr_dat'RANGE);
+ SIGNAL fifo_rd_en : STD_LOGIC;
+ SIGNAL fifo_full : STD_LOGIC;
+ SIGNAL fifo_empty : STD_LOGIC;
+ SIGNAL fifo_usedw : STD_LOGIC_VECTOR(usedw'RANGE);
+
+ SIGNAL nxt_wr_aful : STD_LOGIC;
+ SIGNAL nxt_rd_val : STD_LOGIC;
+
+BEGIN
+
+ -- Control logic copied from common_fifo_sc(virtex4).vhd
+
+ gen_fifo_rst : IF g_reset=TRUE GENERATE
+ -- Make sure the reset lasts at least 3 cycles (see fifo_generator_ug175.pdf). This is necessary in case
+ -- the FIFO reset is also used functionally to flush it, so not only after power up.
+ u_fifo_rst : ENTITY work.common_areset
+ GENERIC MAP (
+ g_rst_level => '1',
+ g_delay_len => 4
+ )
+ PORT MAP (
+ in_rst => rst,
+ clk => clk,
+ out_rst => fifo_rst
+ );
+ END GENERATE;
+ no_fifo_rst : IF g_reset=FALSE GENERATE
+ fifo_rst <= rst;
+ END GENERATE;
+
+ gen_init : IF g_init=TRUE GENERATE
+ -- Wait at least 3 cycles after reset release before allowing fifo_wr_en (see fifo_generator_ug175.pdf)
+ u_fifo_init : ENTITY work.common_areset
+ GENERIC MAP (
+ g_rst_level => '1',
+ g_delay_len => 4
+ )
+ PORT MAP (
+ in_rst => fifo_rst,
+ clk => clk,
+ out_rst => fifo_init
+ );
+
+ p_init_reg : PROCESS(fifo_rst, clk)
+ BEGIN
+ IF fifo_rst='1' THEN
+ fifo_wr_en <= '0';
+ ELSIF rising_edge(clk) THEN
+ fifo_wr_dat <= nxt_fifo_wr_dat;
+ fifo_wr_en <= nxt_fifo_wr_en;
+ END IF;
+ END PROCESS;
+
+ nxt_fifo_wr_dat <= wr_dat;
+ nxt_fifo_wr_en <= wr_req AND NOT fifo_init; -- check on NOT full is not necessary according to fifo_generator_ug175.pdf
+ END GENERATE;
+ no_init : IF g_init=FALSE GENERATE
+ fifo_wr_dat <= wr_dat;
+ fifo_wr_en <= wr_req; -- check on NOT full is not necessary according to fifo_generator_ug175.pdf
+ END GENERATE;
+
+ wr_ful <= fifo_full;
+ rd_emp <= fifo_empty;
+ usedw <= fifo_usedw;
+
+ fifo_rd_en <= rd_req; -- check on NOT empty is not necessary according to fifo_generator_ds317.pdf, so skip it to easy synthesis timing
+
+ nxt_rd_val <= fifo_rd_en AND NOT fifo_empty; -- check on NOT empty is necessary for rd_val
+
+ nxt_wr_aful <= '0' WHEN TO_UINT(fifo_usedw)<g_nof_words-c_fifo_af_margin ELSE '1';
+
+ p_clk : PROCESS(fifo_rst, clk)
+ BEGIN
+ IF fifo_rst='1' THEN
+ wr_aful <= '0';
+ rd_val <= '0';
+ ELSIF rising_edge(clk) THEN
+ wr_aful <= nxt_wr_aful;
+ rd_val <= nxt_rd_val;
+ END IF;
+ END PROCESS;
+
+ -- 0 < some threshold < usedw < g_nof_words can be used as FIFO almost_full
+ -- 0 < usedw < some threshold < g_nof_words can be used as FIFO almost_empty
+ u_fifo : ENTITY tech_fifo_lib.tech_fifo_sc
+ GENERIC MAP (
+ g_technology => g_technology,
+ g_use_eab => c_use_eab,
+ g_dat_w => g_dat_w,
+ g_nof_words => g_nof_words
+ )
+ PORT MAP (
+ aclr => fifo_rst,
+ clock => clk,
+ data => fifo_wr_dat,
+ rdreq => fifo_rd_en,
+ wrreq => fifo_wr_en,
+ empty => fifo_empty,
+ full => fifo_full,
+ q => rd_dat,
+ usedw => fifo_usedw
+ );
+
+ proc_common_fifo_asserts("common_fifo_sc", g_note_is_ful, g_fail_rd_emp, fifo_rst, clk, fifo_full, fifo_wr_en, clk, fifo_empty, fifo_rd_en);
+
+END str;
diff --git a/libraries/technology/altera/altera_mf/altera_mf_fifo_dc.vhd b/libraries/technology/altera/altera_mf/altera_mf_fifo_dc.vhd
index e4935b4abc..ae59f38b2b 100644
--- a/libraries/technology/altera/altera_mf/altera_mf_fifo_dc.vhd
+++ b/libraries/technology/altera/altera_mf/altera_mf_fifo_dc.vhd
@@ -36,8 +36,8 @@
LIBRARY ieee;
USE ieee.std_logic_1164.all;
-LIBRARY common_lib;
-USE common_lib.common_pkg.ALL;
+LIBRARY technology_lib;
+USE technology_lib.technology_pkg.ALL;
LIBRARY altera_mf;
USE altera_mf.all;
@@ -57,9 +57,9 @@ ENTITY altera_mf_fifo_dc IS
wrreq : IN STD_LOGIC ;
q : OUT STD_LOGIC_VECTOR (g_dat_w-1 DOWNTO 0);
rdempty : OUT STD_LOGIC ;
- rdusedw : OUT STD_LOGIC_VECTOR (ceil_log2(g_nof_words)-1 DOWNTO 0);
+ rdusedw : OUT STD_LOGIC_VECTOR (tech_ceil_log2(g_nof_words)-1 DOWNTO 0);
wrfull : OUT STD_LOGIC ;
- wrusedw : OUT STD_LOGIC_VECTOR (ceil_log2(g_nof_words)-1 DOWNTO 0)
+ wrusedw : OUT STD_LOGIC_VECTOR (tech_ceil_log2(g_nof_words)-1 DOWNTO 0)
);
END altera_mf_fifo_dc;
@@ -67,10 +67,10 @@ END altera_mf_fifo_dc;
ARCHITECTURE SYN OF altera_mf_fifo_dc IS
SIGNAL sub_wire0 : STD_LOGIC ;
- SIGNAL sub_wire1 : STD_LOGIC_VECTOR (ceil_log2(g_nof_words)-1 DOWNTO 0);
+ SIGNAL sub_wire1 : STD_LOGIC_VECTOR (tech_ceil_log2(g_nof_words)-1 DOWNTO 0);
SIGNAL sub_wire2 : STD_LOGIC ;
SIGNAL sub_wire3 : STD_LOGIC_VECTOR (g_dat_w-1 DOWNTO 0);
- SIGNAL sub_wire4 : STD_LOGIC_VECTOR (ceil_log2(g_nof_words)-1 DOWNTO 0);
+ SIGNAL sub_wire4 : STD_LOGIC_VECTOR (tech_ceil_log2(g_nof_words)-1 DOWNTO 0);
@@ -93,23 +93,23 @@ ARCHITECTURE SYN OF altera_mf_fifo_dc IS
wrclk : IN STD_LOGIC ;
rdempty : OUT STD_LOGIC ;
rdreq : IN STD_LOGIC ;
- wrusedw : OUT STD_LOGIC_VECTOR (ceil_log2(g_nof_words)-1 DOWNTO 0);
+ wrusedw : OUT STD_LOGIC_VECTOR (tech_ceil_log2(g_nof_words)-1 DOWNTO 0);
aclr : IN STD_LOGIC ;
wrfull : OUT STD_LOGIC ;
rdclk : IN STD_LOGIC ;
q : OUT STD_LOGIC_VECTOR (g_dat_w-1 DOWNTO 0);
wrreq : IN STD_LOGIC ;
data : IN STD_LOGIC_VECTOR (g_dat_w-1 DOWNTO 0);
- rdusedw : OUT STD_LOGIC_VECTOR (ceil_log2(g_nof_words)-1 DOWNTO 0)
+ rdusedw : OUT STD_LOGIC_VECTOR (tech_ceil_log2(g_nof_words)-1 DOWNTO 0)
);
END COMPONENT;
BEGIN
rdempty <= sub_wire0;
- wrusedw <= sub_wire1(ceil_log2(g_nof_words)-1 DOWNTO 0);
+ wrusedw <= sub_wire1(tech_ceil_log2(g_nof_words)-1 DOWNTO 0);
wrfull <= sub_wire2;
q <= sub_wire3(g_dat_w-1 DOWNTO 0);
- rdusedw <= sub_wire4(ceil_log2(g_nof_words)-1 DOWNTO 0);
+ rdusedw <= sub_wire4(tech_ceil_log2(g_nof_words)-1 DOWNTO 0);
dcfifo_component : dcfifo
GENERIC MAP (
@@ -118,7 +118,7 @@ BEGIN
lpm_showahead => "OFF",
lpm_type => "dcfifo",
lpm_width => g_dat_w,
- lpm_widthu => ceil_log2(g_nof_words),
+ lpm_widthu => tech_ceil_log2(g_nof_words),
overflow_checking => "ON",
rdsync_delaypipe => 5,
underflow_checking => "ON",
diff --git a/libraries/technology/altera/altera_mf/altera_mf_fifo_dc_mixed_widths.vhd b/libraries/technology/altera/altera_mf/altera_mf_fifo_dc_mixed_widths.vhd
index 89406acffe..94eb703450 100644
--- a/libraries/technology/altera/altera_mf/altera_mf_fifo_dc_mixed_widths.vhd
+++ b/libraries/technology/altera/altera_mf/altera_mf_fifo_dc_mixed_widths.vhd
@@ -36,8 +36,8 @@
LIBRARY ieee;
USE ieee.std_logic_1164.all;
-LIBRARY common_lib;
-USE common_lib.common_pkg.ALL;
+LIBRARY technology_lib;
+USE technology_lib.technology_pkg.ALL;
LIBRARY altera_mf;
USE altera_mf.all;
@@ -58,9 +58,9 @@ ENTITY altera_mf_fifo_dc_mixed_widths IS
wrreq : IN STD_LOGIC ;
q : OUT STD_LOGIC_VECTOR (g_rddat_w-1 DOWNTO 0);
rdempty : OUT STD_LOGIC ;
- rdusedw : OUT STD_LOGIC_VECTOR (ceil_log2(g_nof_words*g_wrdat_w/g_rddat_w)-1 DOWNTO 0);
+ rdusedw : OUT STD_LOGIC_VECTOR (tech_ceil_log2(g_nof_words*g_wrdat_w/g_rddat_w)-1 DOWNTO 0);
wrfull : OUT STD_LOGIC ;
- wrusedw : OUT STD_LOGIC_VECTOR (ceil_log2(g_nof_words)-1 DOWNTO 0)
+ wrusedw : OUT STD_LOGIC_VECTOR (tech_ceil_log2(g_nof_words)-1 DOWNTO 0)
);
END altera_mf_fifo_dc_mixed_widths;
@@ -121,8 +121,8 @@ BEGIN
lpm_showahead => "OFF",
lpm_type => "dcfifo",
lpm_width => g_wrdat_w,
- lpm_widthu => ceil_log2(g_nof_words),
- lpm_widthu_r => ceil_log2(g_nof_words*g_wrdat_w/g_rddat_w),
+ lpm_widthu => tech_ceil_log2(g_nof_words),
+ lpm_widthu_r => tech_ceil_log2(g_nof_words*g_wrdat_w/g_rddat_w),
lpm_width_r => g_rddat_w,
overflow_checking => "ON",
rdsync_delaypipe => 5,
diff --git a/libraries/technology/altera/altera_mf/altera_mf_fifo_sc.vhd b/libraries/technology/altera/altera_mf/altera_mf_fifo_sc.vhd
index 70fc37d54b..64e8743b51 100644
--- a/libraries/technology/altera/altera_mf/altera_mf_fifo_sc.vhd
+++ b/libraries/technology/altera/altera_mf/altera_mf_fifo_sc.vhd
@@ -36,8 +36,8 @@
LIBRARY ieee;
USE ieee.std_logic_1164.all;
-LIBRARY common_lib;
-USE common_lib.common_pkg.ALL;
+LIBRARY technology_lib;
+USE technology_lib.technology_pkg.ALL;
LIBRARY altera_mf;
USE altera_mf.all;
@@ -58,7 +58,7 @@ ENTITY altera_mf_fifo_sc IS
empty : OUT STD_LOGIC ;
full : OUT STD_LOGIC ;
q : OUT STD_LOGIC_VECTOR (g_dat_w-1 DOWNTO 0) ;
- usedw : OUT STD_LOGIC_VECTOR (ceil_log2(g_nof_words)-1 DOWNTO 0)
+ usedw : OUT STD_LOGIC_VECTOR (tech_ceil_log2(g_nof_words)-1 DOWNTO 0)
);
END altera_mf_fifo_sc;
@@ -87,7 +87,7 @@ ARCHITECTURE SYN OF altera_mf_fifo_sc IS
);
PORT (
clock : IN STD_LOGIC ;
- usedw : OUT STD_LOGIC_VECTOR (ceil_log2(g_nof_words)-1 DOWNTO 0);
+ usedw : OUT STD_LOGIC_VECTOR (tech_ceil_log2(g_nof_words)-1 DOWNTO 0);
empty : OUT STD_LOGIC ;
full : OUT STD_LOGIC ;
q : OUT STD_LOGIC_VECTOR (g_dat_w-1 DOWNTO 0);
@@ -112,7 +112,7 @@ BEGIN
lpm_showahead => "OFF",
lpm_type => "scfifo",
lpm_width => g_dat_w,
- lpm_widthu => ceil_log2(g_nof_words),
+ lpm_widthu => tech_ceil_log2(g_nof_words),
overflow_checking => "ON",
underflow_checking => "ON",
use_eab => g_use_eab
diff --git a/libraries/technology/altera/altera_mf/hdllib.cfg b/libraries/technology/altera/altera_mf/hdllib.cfg
index 3e3562df89..9bab5336ba 100644
--- a/libraries/technology/altera/altera_mf/hdllib.cfg
+++ b/libraries/technology/altera/altera_mf/hdllib.cfg
@@ -6,10 +6,13 @@ build_sim_dir = $HDL_BUILD_DIR
build_synth_dir =
synth_files =
- altera_mf_ram_cr_cw.vhd
- altera_mf_ram_crw_crw.vhd
altera_mf_ram_crwk_crw.vhd
+ altera_mf_ram_crw_crw.vhd
+ altera_mf_ram_cr_cw.vhd
altera_mf_ram_r_w.vhd
altera_mf_rom_r.vhd
+ altera_mf_fifo_dc_mixed_widths.vhd
+ altera_mf_fifo_dc.vhd
+ altera_mf_fifo_sc.vhd
test_bench_files =
diff --git a/libraries/technology/fifo/hdllib.cfg b/libraries/technology/fifo/hdllib.cfg
index 900857f89d..c1f74d66fd 100644
--- a/libraries/technology/fifo/hdllib.cfg
+++ b/libraries/technology/fifo/hdllib.cfg
@@ -1,5 +1,5 @@
-hdl_lib_name = technology_fifo
-hdl_library_clause_name = technology_fifo_lib
+hdl_lib_name = tech_fifo
+hdl_library_clause_name = tech_fifo_lib
hdl_lib_uses = technology ip_altera_mf
build_sim_dir = $HDL_BUILD_DIR
--
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