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White Rabbit core collection
Commit aa9b79cb authored by Mathias Kreider's avatar Mathias Kreider
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TLU: Merge changes to interface -> ECA timestamp format & bugfixes

parents 9c11694d e998f69e
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Showing with 26 additions and 32 deletions
modules/wr_tlu/wb_cores_pkg_gsi.vhd
View file @ aa9b79cb
......@@ -24,14 +24,7 @@ package wb_cores_pkg_gsi is
date => x"20120308",
name => "GSI_TM_LATCH ")));
component fake_timestamp
port (
ref_clk_i : in std_logic;
nRSt_i : in std_logic;
cnt_clr : in std_logic;
tm_utc_o : out std_logic_vector(39 downto 0);
tm_cycles_o : out std_logic_vector(27 downto 0));
end component;
component wb_timestamp_latch
generic (
......@@ -44,7 +37,7 @@ component wb_timestamp_latch
sys_rstn_i : in std_logic;
triggers_i : in std_logic_vector(g_num_triggers-1 downto 0);
tm_time_valid_i : in std_logic;
tm_utc_i : in std_logic_vector(39 downto 0);
tm_tai_i : in std_logic_vector(39 downto 0);
tm_cycles_i : in std_logic_vector(27 downto 0);
wb_slave_i : in t_wishbone_slave_in;
wb_slave_o : out t_wishbone_slave_out);
......
modules/wr_tlu/wb_timestamp_latch.vhd
View file @ aa9b79cb
......@@ -52,6 +52,7 @@ use IEEE.std_logic_1164.all;
use IEEE.numeric_std.all;
library work;
use work.eca_pkg.all;
use work.wishbone_pkg.all;
use work.genram_pkg.all;
......@@ -66,7 +67,7 @@ entity wb_timestamp_latch is
triggers_i : in std_logic_vector(g_num_triggers-1 downto 0); -- trigger lines for latch
tm_time_valid_i : in std_logic; -- timestamp valid flag
tm_utc_i : in std_logic_vector(39 downto 0); -- UTC Timestamp
tm_tai_i : in std_logic_vector(39 downto 0); -- TAI Timestamp
tm_cycles_i : in std_logic_vector(27 downto 0); -- refclock cycle count
wb_slave_i : in t_wishbone_slave_in; -- Wishbone slave interface (sys_clk domain)
......@@ -145,7 +146,7 @@ architecture behavioral of wb_timestamp_latch is
-- stdlv with bit for every trigger channel
subtype channel is std_logic_vector (g_num_triggers-1 downto 0);
-- stdlv to hold utc + cycle counter
subtype t_timestamp is std_logic_vector(67 downto 0);
subtype t_timestamp is std_logic_vector(95 downto 0);
type t_tm_array is array (0 to g_num_triggers-1) of t_timestamp;
-- stdlv 32b wb bus word
subtype t_word is std_logic_vector(31 downto 0);
......@@ -164,12 +165,9 @@ architecture behavioral of wb_timestamp_latch is
-- tm latch registers
signal tm_fifo_in : t_tm_array;
signal tm_fifo_out : t_tm_array;
signal tm_word0 : t_word_array;
signal tm_word1 : t_word_array;
signal tm_word2 : t_word_array;
signal cur_tm_word1 : t_word;
signal cur_tm_word2 : t_word;
signal sa_time0 : t_time;
signal sa_time0_reg_LO : t_word;
signal subnano : t_word_array;
-- fifo signals
signal nRst_fifo : channel;
......@@ -239,7 +237,13 @@ architecture behavioral of wb_timestamp_latch is
begin -- behavioral
T0 : eca_wr_time
port map(
clk_i => ref_clk_i,
tai_i => tm_tai_i,
cycles_i => tm_cycles_i,
time_o => sa_time0);
-------------------------------------------------------------------------------
-- BEGIN TRIGGER CHANNEL GENERATE
......@@ -250,9 +254,6 @@ begin -- behavioral
nRst_fifo(i) <= ref_rstn_i and not fifo_clear(i);
tm_word0(i) <= std_logic_vector(to_unsigned(0, 32-8)) & tm_fifo_out(i)(67 downto 60);
tm_word1(i) <= tm_fifo_out(i)(59 downto 28);
tm_word2(i) <= std_logic_vector(to_unsigned(0, 32-28)) & tm_fifo_out(i)(27 downto 0);
sync_trig_edge_reg : gc_sync_ffs
generic map (
......@@ -332,6 +333,7 @@ begin -- behavioral
if ref_clk_i'event and ref_clk_i = '1' then -- rising clock edge
if ref_rstn_i = '0' then -- synchronous reset (active low)
we(i) <= '0';
subnano(i) <= (others=>'0');
else
---------------------------------------------------------------------
-- Latch timestamp if trigger is active and selected edge is detected
......@@ -341,7 +343,7 @@ begin -- behavioral
if((trigger_edge_ref_clk(i) = '0' and triggers_neg_edge_synced(i) = '1')
or ((trigger_edge_ref_clk(i) = '1') and (triggers_pos_edge_synced(i) = '1'))) then
we(i) <= '1';
tm_fifo_in(i) <= sub_cap_delay(tm_utc_i, tm_cycles_i);
tm_fifo_in(i) <= std_logic_vector(unsigned(sa_time0)-3) & subnano(i); --sub_cap_delay(sa_time0, tm_cycles_i);
end if;
end if;
---------------------------------------------------------------------
......@@ -378,6 +380,7 @@ begin -- behavioral
trigger_active <= (others => '0');
trigger_edge <= (others => '1');
rd <= (others => '1');
else
-----------------------------------------------------------------------
fifo_clear <= (others => '0');
......@@ -426,12 +429,10 @@ begin -- behavioral
when x"014" => wb_slave_o.dat <= pad_4_WB(trigger_edge); wb_slave_o.ack <= '1';
when x"018" => wb_slave_o.ack <= '1';
when x"01C" => wb_slave_o.ack <= '1';
when x"100" => wb_slave_o.dat <= std_logic_vector(to_unsigned(0, 32-8)) & tm_fifo_in(0)(67 downto 60);
cur_tm_word1 <= tm_fifo_in(0)(59 downto 28);
cur_tm_word2 <= std_logic_vector(to_unsigned(0, 32-28)) & tm_fifo_in(0)(27 downto 0);
wb_slave_o.ack <= '1';
when x"104" => wb_slave_o.dat <= cur_tm_word1; wb_slave_o.ack <= '1';
when x"108" => wb_slave_o.dat <= cur_tm_word2; wb_slave_o.ack <= '1';
when x"100" => wb_slave_o.dat <= sa_time0(63 downto 32);
sa_time0_reg_LO <= sa_time0(31 downto 0);
wb_slave_o.ack <= '1';
when x"104" => wb_slave_o.dat <= sa_time0_reg_LO; wb_slave_o.ack <= '1';
when others => wb_slave_o.err <= '1';
end case;
......@@ -457,11 +458,11 @@ begin -- behavioral
-- fifo fill count
when "001" => wb_slave_o.dat <= pad_4_WB(rd_count(i)); wb_slave_o.ack <= '1';
-- timestamp utc word 0
when "010" => wb_slave_o.dat <= tm_word0(i); wb_slave_o.ack <= '1';
when "010" => wb_slave_o.dat <= tm_fifo_out(i)(95 downto 64); wb_slave_o.ack <= '1';
-- timestamp utc word 1
when "011" => wb_slave_o.dat <= tm_word1(i); wb_slave_o.ack <= '1';
-- timestamp cycles word
when "100" => wb_slave_o.dat <= tm_word2(i); wb_slave_o.ack <= '1';
when "011" => wb_slave_o.dat <= tm_fifo_out(i)(63 downto 32); wb_slave_o.ack <= '1';
-- sub nano
when "100" => wb_slave_o.dat <= tm_fifo_out(i)(31 downto 0); wb_slave_o.ack <= '1';
when others => wb_slave_o.ack <= '1';
end case;
......
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