|
|
------------------------------------------------------------------------------
|
|
|
-- This file is a part of the LPP VHDL IP LIBRARY
|
|
|
-- Copyright (C) 2016, Laboratory of Plasmas Physic - CNRS
|
|
|
--
|
|
|
-- This program is free software; you can redistribute it and/or modify
|
|
|
-- it under the terms of the GNU General Public License as published by
|
|
|
-- the Free Software Foundation; either version 3 of the License, or
|
|
|
-- (at your option) any later version.
|
|
|
--
|
|
|
-- This program is distributed in the hope that it will be useful,
|
|
|
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
-- GNU General Public License for more details.
|
|
|
--
|
|
|
-- You should have received a copy of the GNU General Public License
|
|
|
-- along with this program; if not, write to the Free Software
|
|
|
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
------------------------------------------------------------------------------
|
|
|
-- Author : Alexis Jeandet
|
|
|
-- Mail : alexis.jeandet@lpp.polytechnique.fr
|
|
|
------------------------------------------------------------------------------
|
|
|
library ieee;
|
|
|
use ieee.std_logic_1164.all;
|
|
|
--use ieee.numeric_std.all;
|
|
|
library grlib;
|
|
|
use grlib.amba.all;
|
|
|
use grlib.stdlib.all;
|
|
|
use grlib.devices.all;
|
|
|
library lpp;
|
|
|
use lpp.apb_devices_list.all;
|
|
|
use lpp.lpp_amba.all;
|
|
|
use lpp.general_purpose.TimeGenAdvancedTrigger;
|
|
|
|
|
|
|
|
|
entity APB_ADVANCED_TRIGGER is
|
|
|
generic (
|
|
|
pindex : integer := 0;
|
|
|
paddr : integer := 0
|
|
|
);
|
|
|
port (
|
|
|
rstn : in std_ulogic;
|
|
|
clk : in std_ulogic;
|
|
|
apbi : in apb_slv_in_type;
|
|
|
apbo : out apb_slv_out_type;
|
|
|
|
|
|
SPW_Tickout : IN STD_LOGIC;
|
|
|
CoarseTime : IN STD_LOGIC_VECTOR(31 DOWNTO 0);
|
|
|
FineTime : IN STD_LOGIC_VECTOR(15 DOWNTO 0);
|
|
|
|
|
|
Trigger : OUT STD_LOGIC
|
|
|
);
|
|
|
end;
|
|
|
|
|
|
|
|
|
architecture beh of APB_ADVANCED_TRIGGER is
|
|
|
|
|
|
constant REVISION : integer := 1;
|
|
|
|
|
|
constant pconfig : apb_config_type := (
|
|
|
0 => ahb_device_reg (VENDOR_LPP, LPP_APB_ADVANCED_TRIGGER, 0, REVISION, 0),
|
|
|
1 => apb_iobar(paddr, 16#fff#));
|
|
|
|
|
|
|
|
|
|
|
|
type adv_trig_type is record
|
|
|
TrigPeriod : STD_LOGIC_VECTOR(3 DOWNTO 0); -- In seconds 0 to 15
|
|
|
TrigShift : STD_LOGIC_VECTOR(15 DOWNTO 0); -- In FineTime steps
|
|
|
Restart : STD_LOGIC;
|
|
|
StartDate : STD_LOGIC_VECTOR(31 DOWNTO 0); -- Date in seconds since epoch
|
|
|
BypassTickout : STD_LOGIC; -- if set then Trigger output is driven by SPW tickout
|
|
|
end record;
|
|
|
|
|
|
type adv_trig_regs is record
|
|
|
CFG : STD_LOGIC_VECTOR(31 DOWNTO 0);
|
|
|
Restart : STD_LOGIC_VECTOR(31 DOWNTO 0);
|
|
|
StartDate : STD_LOGIC_VECTOR(31 DOWNTO 0);
|
|
|
end record;
|
|
|
|
|
|
signal r : adv_trig_regs;
|
|
|
signal adv_trig : adv_trig_type;
|
|
|
signal Rdata : std_logic_vector(31 downto 0);
|
|
|
|
|
|
|
|
|
begin
|
|
|
|
|
|
|
|
|
|
|
|
adv_trig0: TimeGenAdvancedTrigger
|
|
|
PORT MAP(
|
|
|
clk => clk,
|
|
|
rstn => rstn,
|
|
|
|
|
|
SPW_Tickout => SPW_Tickout,
|
|
|
|
|
|
CoarseTime => CoarseTime,
|
|
|
FineTime => FineTime,
|
|
|
|
|
|
TrigPeriod => adv_trig.TrigPeriod,
|
|
|
TrigShift => adv_trig.TrigShift,
|
|
|
Restart => adv_trig.Restart,
|
|
|
StartDate => adv_trig.StartDate,
|
|
|
|
|
|
BypassTickout => adv_trig.BypassTickout,
|
|
|
Trigger => Trigger
|
|
|
|
|
|
);
|
|
|
|
|
|
adv_trig.BypassTickout <= r.CFG(0);
|
|
|
adv_trig.TrigPeriod <= r.CFG(7 downto 4);
|
|
|
adv_trig.TrigShift <= r.CFG(31 downto 16);
|
|
|
adv_trig.Restart <= r.Restart(0);
|
|
|
adv_trig.StartDate <= r.StartDate;
|
|
|
|
|
|
|
|
|
process(rstn,clk)
|
|
|
begin
|
|
|
if rstn = '0' then
|
|
|
r.CFG(31 DOWNTO 1) <= (others=>'0');
|
|
|
r.CFG(0) <= '0';
|
|
|
r.Restart <= (others=>'0');
|
|
|
r.StartDate <= (others=>'0');
|
|
|
elsif clk'event and clk = '1' then
|
|
|
|
|
|
--APB Write OP
|
|
|
if (apbi.psel(pindex) and apbi.penable and apbi.pwrite) = '1' then
|
|
|
case apbi.paddr(8-1 downto 2) is
|
|
|
when "000000" =>
|
|
|
r.CFG <= apbi.pwdata;
|
|
|
when "000001" =>
|
|
|
r.Restart <= apbi.pwdata;
|
|
|
when "000010" =>
|
|
|
r.StartDate <= apbi.pwdata;
|
|
|
when others =>
|
|
|
null;
|
|
|
end case;
|
|
|
end if;
|
|
|
|
|
|
--APB READ OP
|
|
|
if (apbi.psel(pindex) and (not apbi.pwrite)) = '1' then
|
|
|
case apbi.paddr(8-1 downto 2) is
|
|
|
when "000000" =>
|
|
|
Rdata <= r.CFG;
|
|
|
when "000001" =>
|
|
|
Rdata <= r.Restart;
|
|
|
when "000010" =>
|
|
|
Rdata <= r.StartDate;
|
|
|
when others =>
|
|
|
Rdata <= r.Restart;
|
|
|
end case;
|
|
|
end if;
|
|
|
|
|
|
end if;
|
|
|
end process;
|
|
|
|
|
|
apbo.pconfig <= pconfig;
|
|
|
apbo.prdata <= Rdata when apbi.penable = '1';
|
|
|
apbo.pirq <= (OTHERS => '0');
|
|
|
apbo.pindex <= pindex;
|
|
|
end beh;
|
|
|
|