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C
Converter Common Gateware
Commit 6e1a5f9e authored by Theodor-Adrian Stana's avatar Theodor-Adrian Stana
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Added package file and made adjustments to output enable logic 

The main logic changes are that the output enable lines are now set after
the internal reset has been spent. This is to make sure that the lines are
only controlled by the FPGA and no erroneous glitches are generated.

Other changes include the addition of the RTM detection lines to the
interface, which are now reflected in the CONV Status Reg, and connecting
the reset from register line, which was previously unconnected.

Then, component instantiations and the SDB declaration for conv_regs have
been moved to the package file (conv_common_gw_pkg).
parent ff1fc9c5
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top/Manifest.py
View file @ 6e1a5f9e
files = [
"conv_common_gw.vhd"
"conv_common_gw.vhd",
"conv_common_gw_pkg.vhd"
]
modules = {
......
top/conv_common_gw.vhd
View file @ 6e1a5f9e
......@@ -56,6 +56,8 @@ use work.gencores_pkg.all;
use work.wishbone_pkg.all;
use work.genram_pkg.all;
use work.conv_common_gw_pkg.all;
entity conv_common_gw is
generic
(
......@@ -155,6 +157,10 @@ entity conv_common_gw is
sw_gp_n_i : in std_logic_vector(7 downto 0);
sw_multicast_n_i : in std_logic_vector(3 downto 0);
-- RTM lines
rtmm_i : in std_logic_vector(2 downto 0);
rtmp_i : in std_logic_vector(2 downto 0);
-- TTL, INV-TTL and rear-panel channel inputs, for reflection in line status register
line_ttl_i : in std_logic_vector(g_nr_chans-1 downto 0);
line_invttl_i : in std_logic_vector(3 downto 0);
......@@ -191,274 +197,19 @@ architecture arch of conv_common_gw is
constant c_slv_multiboot : natural := 1;
constant c_slv_onewire_mst : natural := 2;
-- Converter board registers SDB definition
constant c_conv_regs_sdb : t_sdb_device := (
abi_class => x"0000", -- undocumented device
abi_ver_major => x"01",
abi_ver_minor => x"00",
wbd_endian => c_sdb_endian_big,
wbd_width => x"7", -- 8/16/32-bit port granularity
sdb_component => (
addr_first => x"0000000000000000",
addr_last => x"00000000000000ff",
product => (
vendor_id => x"000000000000CE42", -- CERN
device_id => x"3ab464e8", -- echo "conv_regs " | md5sum | cut -c1-8
version => x"00000001",
date => x"20140731",
name => "conv_regs ")));
-- base address definitions
constant c_addr_conv_regs : t_wishbone_address := x"00000000";
constant c_addr_multiboot : t_wishbone_address := x"00000100";
constant c_addr_onewire_mst : t_wishbone_address := x"000000c0";
constant c_addr_sdb : t_wishbone_address := x"00000200";
-- -- address mask definitions
-- constant c_mask_conv_regs : t_wishbone_address := x"00000fc0";
-- constant c_mask_multiboot : t_wishbone_address := x"00000fc0";
-- constant c_mask_onewire_mst : t_wishbone_address := x"00000fe0";
--
-- -- addresses constant for Wishbone crossbar
-- constant c_addresses : t_wishbone_address_array(c_nr_slaves-1 downto 0)
-- := (
-- c_slv_conv_regs => c_addr_conv_regs
-- -- c_slv_multiboot => c_addr_multiboot,
-- -- c_slv_onewire_mst => c_addr_onewire_mst
-- );
--
-- -- masks constant for Wishbone crossbar
-- constant c_masks : t_wishbone_address_array(c_nr_slaves-1 downto 0)
-- := (
-- c_slv_conv_regs => c_mask_conv_regs
-- -- c_slv_multiboot => c_mask_multiboot,
-- -- c_slv_onewire_mst => c_mask_onewire_mst
-- );
-- SDB interconnect layout
-- c_conv_regs_sdb defined in conv_common_gw_pkg.vhd
constant c_sdb_layout : t_sdb_record_array(c_nr_slaves-1 downto 0) := (
c_slv_conv_regs => f_sdb_embed_device(c_conv_regs_sdb, c_addr_conv_regs),
c_slv_multiboot => f_sdb_embed_device(c_xwb_xil_multiboot_sdb, c_addr_multiboot)
);
--============================================================================
-- Component declarations
--============================================================================
------------------------------------------------------------------------------
-- Fixed-width reset generator
------------------------------------------------------------------------------
component conv_reset_gen is
generic
(
-- Reset time in number of clk_i cycles
g_reset_time : positive := 2_000_000
);
port
(
clk_i : in std_logic;
rst_i : in std_logic;
rst_n_o : out std_logic
);
end component conv_reset_gen;
component conv_pulse_gen is
generic
(
-- This generic enables elaboration of the fixed pulse width logic
g_with_fixed_pwidth : boolean;
-- Pulse width, in number of clk_i cycles
-- Default pulse width (20 MHz clock): 1.2 us
-- Minimum allowable pulse width (20 MHz clock): 1 us
-- Maximum allowable pulse width (20 MHz clock): 2 us
g_pwidth : natural range 20 to 40 := 24;
-- Duty cycle divider: D = 1/g_duty_cycle_div
g_duty_cycle_div : natural := 5
);
port
(
-- Clock and active-low reset inputs
clk_i : in std_logic;
rst_n_i : in std_logic;
-- Glitch filter enable input
-- '1' - Glitch filter disabled (glitch-sensitive, no output jitter)
-- '0' - Glitch filter enabled (glitch-insensitive, with output jitter)
gf_en_n_i : in std_logic;
-- Enable input, pulse generation is enabled when '1'
en_i : in std_logic;
-- Trigger input, has to be '1' to assure pulse output with delay no greater
-- than internal gate delays.
trig_a_i : in std_logic;
-- Pulse error output, pulses high for one clock cycle when a pulse arrives
-- within a pulse period
pulse_err_p_o : out std_logic;
-- Pulse output, active-high
-- latency:
-- glitch filter disabled: none
-- glitch filter enabled: glitch filter length + 5 clk_i cycles
pulse_o : out std_logic
);
end component conv_pulse_gen;
------------------------------------------------------------------------------
-- Converter board control registers
------------------------------------------------------------------------------
component conv_regs is
port (
rst_n_i : in std_logic;
clk_sys_i : in std_logic;
wb_adr_i : in std_logic_vector(5 downto 0);
wb_dat_i : in std_logic_vector(31 downto 0);
wb_dat_o : out std_logic_vector(31 downto 0);
wb_cyc_i : in std_logic;
wb_sel_i : in std_logic_vector(3 downto 0);
wb_stb_i : in std_logic;
wb_we_i : in std_logic;
wb_ack_o : out std_logic;
wb_stall_o : out std_logic;
-- Port for std_logic_vector field: 'ID register bits' in reg: 'BIDR'
reg_bidr_i : in std_logic_vector(31 downto 0);
-- Port for std_logic_vector field: 'Gateware version' in reg: 'SR'
reg_sr_gwvers_i : in std_logic_vector(7 downto 0);
-- Port for std_logic_vector field: 'Status of on-board switches' in reg: 'SR'
reg_sr_switches_i : in std_logic_vector(7 downto 0);
-- Port for std_logic_vector field: 'RTM detection lines~\cite{rtm-det}' in reg: 'SR'
reg_sr_rtm_i : in std_logic_vector(5 downto 0);
-- Ports for BIT field: 'I2C communication watchdog timeout error' in reg: 'SR'
reg_sr_i2c_wdto_o : out std_logic;
reg_sr_i2c_wdto_i : in std_logic;
reg_sr_i2c_wdto_load_o : out std_logic;
-- Port for BIT field: 'White Rabbit present' in reg: 'SR'
reg_sr_wrpres_i : in std_logic;
-- Ports for BIT field: 'I2C communication error' in reg: 'SR'
reg_sr_i2c_err_o : out std_logic;
reg_sr_i2c_err_i : in std_logic;
reg_sr_i2c_err_load_o : out std_logic;
-- Ports for BIT field: 'Pulse missed error' in reg: 'SR'
reg_sr_pmisse_o : out std_logic;
reg_sr_pmisse_i : in std_logic;
reg_sr_pmisse_load_o : out std_logic;
-- Ports for BIT field: 'Reset unlock bit' in reg: 'CR'
reg_cr_rst_unlock_o : out std_logic;
reg_cr_rst_unlock_i : in std_logic;
reg_cr_rst_unlock_load_o : out std_logic;
-- Ports for BIT field: 'Reset bit' in reg: 'CR'
reg_cr_rst_o : out std_logic;
reg_cr_rst_i : in std_logic;
reg_cr_rst_load_o : out std_logic;
-- Ports for PASS_THROUGH field: 'Manual Pulse Trigger' in reg: 'CR'
reg_cr_mpt_o : out std_logic_vector(7 downto 0);
reg_cr_mpt_wr_o : out std_logic;
-- Port for std_logic_vector field: 'Pulse counter value' in reg: 'CH1PCR'
reg_ch1pcr_o : out std_logic_vector(31 downto 0);
reg_ch1pcr_i : in std_logic_vector(31 downto 0);
reg_ch1pcr_load_o : out std_logic;
-- Port for std_logic_vector field: 'Pulse counter value' in reg: 'CH2PCR'
reg_ch2pcr_o : out std_logic_vector(31 downto 0);
reg_ch2pcr_i : in std_logic_vector(31 downto 0);
reg_ch2pcr_load_o : out std_logic;
-- Port for std_logic_vector field: 'Pulse counter value' in reg: 'CH3PCR'
reg_ch3pcr_o : out std_logic_vector(31 downto 0);
reg_ch3pcr_i : in std_logic_vector(31 downto 0);
reg_ch3pcr_load_o : out std_logic;
-- Port for std_logic_vector field: 'Pulse counter value' in reg: 'CH4PCR'
reg_ch4pcr_o : out std_logic_vector(31 downto 0);
reg_ch4pcr_i : in std_logic_vector(31 downto 0);
reg_ch4pcr_load_o : out std_logic;
-- Port for std_logic_vector field: 'Pulse counter value' in reg: 'CH5PCR'
reg_ch5pcr_o : out std_logic_vector(31 downto 0);
reg_ch5pcr_i : in std_logic_vector(31 downto 0);
reg_ch5pcr_load_o : out std_logic;
-- Port for std_logic_vector field: 'Pulse counter value' in reg: 'CH6PCR'
reg_ch6pcr_o : out std_logic_vector(31 downto 0);
reg_ch6pcr_i : in std_logic_vector(31 downto 0);
reg_ch6pcr_load_o : out std_logic;
-- Port for std_logic_vector field: 'TAI seconds counter bits 31..0' in reg: 'TVLR'
reg_tvlr_o : out std_logic_vector(31 downto 0);
reg_tvlr_i : in std_logic_vector(31 downto 0);
reg_tvlr_load_o : out std_logic;
-- Port for std_logic_vector field: 'TAI seconds counter bits 39..32' in reg: 'TVHR'
reg_tvhr_o : out std_logic_vector(7 downto 0);
reg_tvhr_i : in std_logic_vector(7 downto 0);
reg_tvhr_load_o : out std_logic;
-- Port for std_logic_vector field: 'Channel mask' in reg: 'TBMR'
reg_tbmr_chan_i : in std_logic_vector(5 downto 0);
-- Port for BIT field: 'White Rabbit present' in reg: 'TBMR'
reg_tbmr_wrtag_i : in std_logic;
-- Tag buffer read request, asserted when reading from TBMR
reg_tb_rd_req_p_o : out std_logic;
-- Port for std_logic_vector field: 'Cycles counter' in reg: 'TBCYR'
reg_tbcyr_i : in std_logic_vector(27 downto 0);
-- Port for std_logic_vector field: 'Lower part of TAI seconds counter' in reg: 'TBTLR'
reg_tbtlr_i : in std_logic_vector(31 downto 0);
-- Port for std_logic_vector field: 'Upper part of TAI seconds counter' in reg: 'TBTHR'
reg_tbthr_i : in std_logic_vector(7 downto 0);
-- Port for std_logic_vector field: 'Buffer counter' in reg: 'TBCSR'
reg_tbcsr_usedw_i : in std_logic_vector(6 downto 0);
-- Port for BIT field: 'Buffer full' in reg: 'TBCSR'
reg_tbcsr_full_i : in std_logic;
-- Port for BIT field: 'Buffer empty' in reg: 'TBCSR'
reg_tbcsr_empty_i : in std_logic;
-- Ports for BIT field: 'Clear tag buffer' in reg: 'TBCSR'
reg_tbcsr_clr_o : out std_logic;
reg_tbcsr_clr_i : in std_logic;
reg_tbcsr_clr_load_o : out std_logic;
-- Port for std_logic_vector field: 'Lower part of TAI seconds counter' in reg: 'CH1LTSTLR'
reg_ch1ltstlr_i : in std_logic_vector(31 downto 0);
-- Port for std_logic_vector field: 'Upper part of TAI seconds counter' in reg: 'CH1LTSTHR'
reg_ch1ltsthr_tai_i : in std_logic_vector(7 downto 0);
-- Port for BIT field: 'White Rabbit present' in reg: 'CH1LTSTHR'
reg_ch1ltsthr_wrtag_i : in std_logic;
-- Port for std_logic_vector field: 'Lower part of TAI seconds counter' in reg: 'CH2LTSTLR'
reg_ch2ltstlr_i : in std_logic_vector(31 downto 0);
-- Port for std_logic_vector field: 'Upper part of TAI seconds counter' in reg: 'CH2LTSTHR'
reg_ch2ltsthr_tai_i : in std_logic_vector(7 downto 0);
-- Port for BIT field: 'White Rabbit present' in reg: 'CH2LTSTHR'
reg_ch2ltsthr_wrtag_i : in std_logic;
-- Port for std_logic_vector field: 'Lower part of TAI seconds counter' in reg: 'CH3LTSTLR'
reg_ch3ltstlr_i : in std_logic_vector(31 downto 0);
-- Port for std_logic_vector field: 'Upper part of TAI seconds counter' in reg: 'CH3LTSTHR'
reg_ch3ltsthr_tai_i : in std_logic_vector(7 downto 0);
-- Port for BIT field: 'White Rabbit present' in reg: 'CH3LTSTHR'
reg_ch3ltsthr_wrtag_i : in std_logic;
-- Port for std_logic_vector field: 'Lower part of TAI seconds counter' in reg: 'CH4LTSTLR'
reg_ch4ltstlr_i : in std_logic_vector(31 downto 0);
-- Port for std_logic_vector field: 'Upper part of TAI seconds counter' in reg: 'CH4LTSTHR'
reg_ch4ltsthr_tai_i : in std_logic_vector(7 downto 0);
-- Port for BIT field: 'White Rabbit present' in reg: 'CH4LTSTHR'
reg_ch4ltsthr_wrtag_i : in std_logic;
-- Port for std_logic_vector field: 'Lower part of TAI seconds counter' in reg: 'CH5LTSTLR'
reg_ch5ltstlr_i : in std_logic_vector(31 downto 0);
-- Port for std_logic_vector field: 'Upper part of TAI seconds counter' in reg: 'CH5LTSTHR'
reg_ch5ltsthr_tai_i : in std_logic_vector(7 downto 0);
-- Port for BIT field: 'White Rabbit present' in reg: 'CH5LTSTHR'
reg_ch5ltsthr_wrtag_i : in std_logic;
-- Port for std_logic_vector field: 'Lower part of TAI seconds counter' in reg: 'CH6LTSTLR'
reg_ch6ltstlr_i : in std_logic_vector(31 downto 0);
-- Port for std_logic_vector field: 'Upper part of TAI seconds counter' in reg: 'CH6LTSTHR'
reg_ch6ltsthr_tai_i : in std_logic_vector(7 downto 0);
-- Port for BIT field: 'White Rabbit present' in reg: 'CH6LTSTHR'
reg_ch6ltsthr_wrtag_i : in std_logic;
-- Port for std_logic_vector field: 'Front panel TTL input state' in reg: 'LSR'
reg_lsr_front_ttl_i : in std_logic_vector(5 downto 0);
-- Port for std_logic_vector field: 'Front panel TTL-BAR input state' in reg: 'LSR'
reg_lsr_front_invttl_i : in std_logic_vector(3 downto 0);
-- Port for std_logic_vector field: 'Rear panel input state' in reg: 'LSR'
reg_lsr_rear_i : in std_logic_vector(5 downto 0);
-- Port for std_logic_vector field: 'Input failsafe state' in reg: 'LSR'
reg_lsr_fs_i : in std_logic_vector(5 downto 0);
-- Port for std_logic_vector field: 'State of MultiCast switches' in reg: 'MSWR'
reg_mswr_bit_i : in std_logic_vector(3 downto 0)
);
end component conv_regs;
--============================================================================
-- Signal declarations
--============================================================================
......@@ -477,6 +228,11 @@ architecture arch of conv_common_gw is
signal pulse_outp_d0 : std_logic_vector(g_nr_chans-1 downto 0);
signal pulse_outp_redge_p : std_logic_vector(g_nr_chans-1 downto 0);
-- Output enable signals
signal global_oen : std_logic;
signal ttl_oen, invttl_oen : std_logic;
signal rear_oen : std_logic;
-- I2C bridge signals
signal i2c_addr : std_logic_vector(6 downto 0);
signal i2c_tip : std_logic;
......@@ -545,7 +301,7 @@ begin
port map
(
clk_i => clk_20_i,
rst_i => '0',
rst_i => rst_fr_reg,
rst_n_o => rst_20_n
);
......@@ -555,10 +311,32 @@ begin
--============================================================================
-- Output enable logic
--============================================================================
global_ch_oen_o <= '1';
pulse_front_oen_o <= '1';
inv_oen_o <= '1';
pulse_rear_oen_o <= '1';
-- Enable outputs only when the FPGA is ready to handle them
-- One clock cycle delay from global OEN to rest of OENs
p_delay_oen : process (clk_20_i) is
begin
if rising_edge(clk_20_i) then
if (rst_20_n = '0') then
global_oen <= '0';
ttl_oen <= '0';
invttl_oen <= '0';
rear_oen <= '0';
else
global_oen <= '1';
if global_oen = '1' then
ttl_oen <= '1';
invttl_oen <= '1';
rear_oen <= '1';
end if;
end if;
end if;
end process p_delay_oen;
-- Assign OEN outputs
global_ch_oen_o <= global_oen;
pulse_front_oen_o <= ttl_oen;
inv_oen_o <= invttl_oen;
pulse_rear_oen_o <= rear_oen;
--============================================================================
-- Pulse repetition logic
......@@ -823,25 +601,6 @@ begin
master_o => xbar_master_out
);
-- cmp_wb_crossbar : xwb_crossbar
-- generic map
-- (
-- g_num_masters => c_nr_masters,
-- g_num_slaves => c_nr_slaves,
-- g_registered => false,
-- g_address => c_addresses,
-- g_mask => c_masks
-- )
-- port map
-- (
-- clk_sys_i => clk_20_i,
-- rst_n_i => rst_20_n,
-- slave_i => xbar_slave_in,
-- slave_o => xbar_slave_out,
-- master_i => xbar_master_in,
-- master_o => xbar_master_out
-- );
--============================================================================
-- Converter board registers
--============================================================================
......@@ -849,6 +608,9 @@ begin
sw_gp <= not sw_gp_n_i;
sw_multicast <= not sw_multicast_n_i;
-- RTM lines combo
rtm_lines <= rtmp_i & rtmm_i;
-- Then, instantiate the component
cmp_conv_regs : conv_regs
port map (
......@@ -869,7 +631,7 @@ begin
reg_sr_gwvers_i => g_gwvers,
reg_sr_switches_i => sw_gp,
reg_sr_rtm_i => (others => '0'),
reg_sr_rtm_i => rtm_lines,
reg_sr_i2c_wdto_o => i2c_wdto_bit_rst,
reg_sr_i2c_wdto_i => i2c_wdto_bit,
reg_sr_i2c_wdto_load_o => i2c_wdto_bit_rst_ld,
......@@ -890,24 +652,24 @@ begin
reg_cr_mpt_o => open,
reg_cr_mpt_wr_o => open,
reg_ch1pcr_o => ch_pcr(0),
reg_ch1pcr_i => std_logic_vector(pulse_cnt(0)),
reg_ch1pcr_load_o => ch_pcr_ld(0),
reg_ch2pcr_o => ch_pcr(1),
reg_ch2pcr_i => std_logic_vector(pulse_cnt(1)),
reg_ch2pcr_load_o => ch_pcr_ld(1),
reg_ch3pcr_o => ch_pcr(2),
reg_ch3pcr_i => std_logic_vector(pulse_cnt(2)),
reg_ch3pcr_load_o => ch_pcr_ld(2),
reg_ch4pcr_o => ch_pcr(3),
reg_ch4pcr_i => std_logic_vector(pulse_cnt(3)),
reg_ch4pcr_load_o => ch_pcr_ld(3),
reg_ch5pcr_o => ch_pcr(4),
reg_ch5pcr_i => std_logic_vector(pulse_cnt(4)),
reg_ch5pcr_load_o => ch_pcr_ld(4),
reg_ch6pcr_o => ch_pcr(5),
reg_ch6pcr_i => std_logic_vector(pulse_cnt(5)),
reg_ch6pcr_load_o => ch_pcr_ld(5),
reg_ch1pcr_o => open, --ch_pcr(0),
reg_ch1pcr_i => (others => '0'), --std_logic_vector(pulse_cnt(0)),
reg_ch1pcr_load_o => open, --ch_pcr_ld(0),
reg_ch2pcr_o => open, --ch_pcr(1),
reg_ch2pcr_i => (others => '0'), --std_logic_vector(pulse_cnt(1)),
reg_ch2pcr_load_o => open, --ch_pcr_ld(1),
reg_ch3pcr_o => open, --ch_pcr(2),
reg_ch3pcr_i => (others => '0'), --std_logic_vector(pulse_cnt(2)),
reg_ch3pcr_load_o => open, --ch_pcr_ld(2),
reg_ch4pcr_o => open, --ch_pcr(3),
reg_ch4pcr_i => (others => '0'), --std_logic_vector(pulse_cnt(3)),
reg_ch4pcr_load_o => open, --ch_pcr_ld(3),
reg_ch5pcr_o => open, --ch_pcr(4),
reg_ch5pcr_i => (others => '0'), --std_logic_vector(pulse_cnt(4)),
reg_ch5pcr_load_o => open, --ch_pcr_ld(4),
reg_ch6pcr_o => open, --ch_pcr(5),
reg_ch6pcr_i => (others => '0'), --std_logic_vector(pulse_cnt(5)),
reg_ch6pcr_load_o => open, --ch_pcr_ld(5),
reg_tvlr_o => open,
reg_tvlr_i => (others => '0'),
......
top/conv_common_gw_pkg.vhd 0 → 100644
View file @ 6e1a5f9e
--==============================================================================
-- CERN (BE-CO-HT)
-- Converter board common gateware package
--==============================================================================
--
-- author: Theodor Stana (t.stana@cern.ch)
--
-- date of creation: 2014-08-01
--
-- version: 1.0
--
-- description:
--
-- dependencies:
--
-- references:
--
--==============================================================================
-- GNU LESSER GENERAL PUBLIC LICENSE
--==============================================================================
-- This source file is free software; you can redistribute it and/or modify it
-- under the terms of the GNU Lesser General Public License as published by the
-- Free Software Foundation; either version 2.1 of the License, or (at your
-- option) any later version. This source 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 Lesser General Public License for more details. You should have
-- received a copy of the GNU Lesser General Public License along with this
-- source; if not, download it from http://www.gnu.org/licenses/lgpl-2.1.html
--==============================================================================
-- last changes:
-- 2014-08-01 Theodor Stana File created
--==============================================================================
-- TODO: -
--==============================================================================
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use work.wishbone_pkg.all;
package conv_common_gw_pkg is
--============================================================================
-- Component declarations
--============================================================================
------------------------------------------------------------------------------
-- Top-level module
------------------------------------------------------------------------------
component conv_common_gw is
generic
(
-- Number of repeater channels
g_nr_chans : integer := 6;
-- Board ID -- 4-letter ASCII string indicating the board ID
-- see [1] for example
g_board_id : std_logic_vector(31 downto 0);
-- Gateware version
g_gwvers : std_logic_vector(7 downto 0);
-- Generate pulse repetition logic with fixed output pulse width
g_pgen_fixed_width : boolean;
-- Pulse width at pulse generator output (valid with fixed output pulse width)
g_pgen_pwidth : natural range 20 to 40 := 24;
-- Duty cycle divider ratio for pulse generator
-- output pulse will be limited to 1/g_pgen_duty_cycle_div
g_pgen_duty_cycle_div : natural := 5;
-- Pulse generator glitch filter length in number of clk_20_i cycles
g_pgen_gf_len : integer := 4;
-- Bicolor LED controller signals
g_bicolor_led_columns : integer := 6;
g_bicolor_led_lines : integer := 2
);
port
(
-- Clocks
clk_20_i : in std_logic;
clk_125_p_i : in std_logic;
clk_125_n_i : in std_logic;
-- Reset output signal, synchronous to 20 MHz clock
rst_n_o : out std_logic;
-- Glitch filter active-low enable signal
gf_en_n_i : in std_logic;
-- Channel enable
global_ch_oen_o : out std_logic;
pulse_front_oen_o : out std_logic;
pulse_rear_oen_o : out std_logic;
inv_oen_o : out std_logic;
-- Pulse inputs
pulse_i : in std_logic_vector(g_nr_chans-1 downto 0);
pulse_o : out std_logic_vector(g_nr_chans-1 downto 0);
-- Channel leds
led_pulse_o : out std_logic_vector(g_nr_chans-1 downto 0);
-- I2C interface
scl_i : in std_logic;
scl_o : out std_logic;
scl_en_o : out std_logic;
sda_i : in std_logic;
sda_o : out std_logic;
sda_en_o : out std_logic;
-- VME interface
vme_ga_i : in std_logic_vector(4 downto 0);
vme_gap_i : in std_logic;
-- SPI interface to on-board flash chip
flash_cs_n_o : out std_logic;
flash_sclk_o : out std_logic;
flash_mosi_o : out std_logic;
flash_miso_i : in std_logic;
-- PLL DACs
-- 20 MHz VCXO control
dac20_din_o : out std_logic;
dac20_sclk_o : out std_logic;
dac20_sync_n_o : out std_logic;
-- 125 MHz clock generator control
dac125_din_o : out std_logic;
dac125_sclk_o : out std_logic;
dac125_sync_n_o : out std_logic;
-- SFP lines
sfp_los_i : in std_logic;
sfp_mod_def0_i : in std_logic;
sfp_rate_select_o : out std_logic;
sfp_mod_def1_b : inout std_logic;
sfp_mod_def2_b : inout std_logic;
sfp_tx_disable_o : out std_logic;
sfp_tx_fault_i : in std_logic;
-- I2C LED signals -- conect to a bicolor LED of choice
-- led_i2c_o pulses four times on I2C transfer
-- led_i2c_err_o reflects the state of SR.I2C_ERR bit in conv_regs
led_i2c_o : out std_logic;
led_i2c_err_o : out std_logic;
-- Switch inputs (for readout from converter status register)
sw_gp_n_i : in std_logic_vector(7 downto 0);
sw_multicast_n_i : in std_logic_vector(3 downto 0);
-- RTM lines
rtmm_i : in std_logic_vector(2 downto 0);
rtmp_i : in std_logic_vector(2 downto 0);
-- TTL, INV-TTL and rear-panel channel inputs, for reflection in line status register
line_ttl_i : in std_logic_vector(g_nr_chans-1 downto 0);
line_invttl_i : in std_logic_vector(3 downto 0);
line_rear_i : in std_logic_vector(g_nr_chans-1 downto 0);
line_rear_fs_i : in std_logic_vector(g_nr_chans-1 downto 0);
-- Bicolor LED signals
bicolor_led_state_i : in std_logic_vector(2*g_bicolor_led_columns*g_bicolor_led_lines-1 downto 0);
bicolor_led_col_o : out std_logic_vector(g_bicolor_led_columns-1 downto 0);
bicolor_led_line_o : out std_logic_vector(g_bicolor_led_lines-1 downto 0);
bicolor_led_line_oen_o : out std_logic_vector(g_bicolor_led_lines-1 downto 0)
);
end component conv_common_gw;
------------------------------------------------------------------------------
-- Fixed-width reset generator
------------------------------------------------------------------------------
component conv_reset_gen is
generic
(
-- Reset time in number of clk_i cycles
g_reset_time : positive := 2_000_000
);
port
(
clk_i : in std_logic;
rst_i : in std_logic;
rst_n_o : out std_logic
);
end component conv_reset_gen;
------------------------------------------------------------------------------
-- Pulse generator with optional configurable pulse width
------------------------------------------------------------------------------
component conv_pulse_gen is
generic
(
-- This generic enables elaboration of the fixed pulse width logic
g_with_fixed_pwidth : boolean;
-- Pulse width, in number of clk_i cycles
-- Default pulse width (20 MHz clock): 1.2 us
-- Minimum allowable pulse width (20 MHz clock): 1 us
-- Maximum allowable pulse width (20 MHz clock): 2 us
g_pwidth : natural range 20 to 40 := 24;
-- Duty cycle divider: D = 1/g_duty_cycle_div
g_duty_cycle_div : natural := 5
);
port
(
-- Clock and active-low reset inputs
clk_i : in std_logic;
rst_n_i : in std_logic;
-- Glitch filter enable input
-- '1' - Glitch filter disabled (glitch-sensitive, no output jitter)
-- '0' - Glitch filter enabled (glitch-insensitive, with output jitter)
gf_en_n_i : in std_logic;
-- Enable input, pulse generation is enabled when '1'
en_i : in std_logic;
-- Trigger input, has to be '1' to assure pulse output with delay no greater
-- than internal gate delays.
trig_a_i : in std_logic;
-- Pulse error output, pulses high for one clock cycle when a pulse arrives
-- within a pulse period
pulse_err_p_o : out std_logic;
-- Pulse output, active-high
-- latency:
-- glitch filter disabled: none
-- glitch filter enabled: glitch filter length + 5 clk_i cycles
pulse_o : out std_logic
);
end component conv_pulse_gen;
------------------------------------------------------------------------------
-- Converter board control registers
------------------------------------------------------------------------------
component conv_regs is
port (
rst_n_i : in std_logic;
clk_sys_i : in std_logic;
wb_adr_i : in std_logic_vector(5 downto 0);
wb_dat_i : in std_logic_vector(31 downto 0);
wb_dat_o : out std_logic_vector(31 downto 0);
wb_cyc_i : in std_logic;
wb_sel_i : in std_logic_vector(3 downto 0);
wb_stb_i : in std_logic;
wb_we_i : in std_logic;
wb_ack_o : out std_logic;
wb_stall_o : out std_logic;
-- Port for std_logic_vector field: 'ID register bits' in reg: 'BIDR'
reg_bidr_i : in std_logic_vector(31 downto 0);
-- Port for std_logic_vector field: 'Gateware version' in reg: 'SR'
reg_sr_gwvers_i : in std_logic_vector(7 downto 0);
-- Port for std_logic_vector field: 'Status of on-board switches' in reg: 'SR'
reg_sr_switches_i : in std_logic_vector(7 downto 0);
-- Port for std_logic_vector field: 'RTM detection lines~\cite{rtm-det}' in reg: 'SR'
reg_sr_rtm_i : in std_logic_vector(5 downto 0);
-- Ports for BIT field: 'I2C communication watchdog timeout error' in reg: 'SR'
reg_sr_i2c_wdto_o : out std_logic;
reg_sr_i2c_wdto_i : in std_logic;
reg_sr_i2c_wdto_load_o : out std_logic;
-- Port for BIT field: 'White Rabbit present' in reg: 'SR'
reg_sr_wrpres_i : in std_logic;
-- Ports for BIT field: 'I2C communication error' in reg: 'SR'
reg_sr_i2c_err_o : out std_logic;
reg_sr_i2c_err_i : in std_logic;
reg_sr_i2c_err_load_o : out std_logic;
-- Ports for BIT field: 'Pulse missed error' in reg: 'SR'
reg_sr_pmisse_o : out std_logic;
reg_sr_pmisse_i : in std_logic;
reg_sr_pmisse_load_o : out std_logic;
-- Ports for BIT field: 'Reset unlock bit' in reg: 'CR'
reg_cr_rst_unlock_o : out std_logic;
reg_cr_rst_unlock_i : in std_logic;
reg_cr_rst_unlock_load_o : out std_logic;
-- Ports for BIT field: 'Reset bit' in reg: 'CR'
reg_cr_rst_o : out std_logic;
reg_cr_rst_i : in std_logic;
reg_cr_rst_load_o : out std_logic;
-- Ports for PASS_THROUGH field: 'Manual Pulse Trigger' in reg: 'CR'
reg_cr_mpt_o : out std_logic_vector(7 downto 0);
reg_cr_mpt_wr_o : out std_logic;
-- Port for std_logic_vector field: 'Pulse counter value' in reg: 'CH1PCR'
reg_ch1pcr_o : out std_logic_vector(31 downto 0);
reg_ch1pcr_i : in std_logic_vector(31 downto 0);
reg_ch1pcr_load_o : out std_logic;
-- Port for std_logic_vector field: 'Pulse counter value' in reg: 'CH2PCR'
reg_ch2pcr_o : out std_logic_vector(31 downto 0);
reg_ch2pcr_i : in std_logic_vector(31 downto 0);
reg_ch2pcr_load_o : out std_logic;
-- Port for std_logic_vector field: 'Pulse counter value' in reg: 'CH3PCR'
reg_ch3pcr_o : out std_logic_vector(31 downto 0);
reg_ch3pcr_i : in std_logic_vector(31 downto 0);
reg_ch3pcr_load_o : out std_logic;
-- Port for std_logic_vector field: 'Pulse counter value' in reg: 'CH4PCR'
reg_ch4pcr_o : out std_logic_vector(31 downto 0);
reg_ch4pcr_i : in std_logic_vector(31 downto 0);
reg_ch4pcr_load_o : out std_logic;
-- Port for std_logic_vector field: 'Pulse counter value' in reg: 'CH5PCR'
reg_ch5pcr_o : out std_logic_vector(31 downto 0);
reg_ch5pcr_i : in std_logic_vector(31 downto 0);
reg_ch5pcr_load_o : out std_logic;
-- Port for std_logic_vector field: 'Pulse counter value' in reg: 'CH6PCR'
reg_ch6pcr_o : out std_logic_vector(31 downto 0);
reg_ch6pcr_i : in std_logic_vector(31 downto 0);
reg_ch6pcr_load_o : out std_logic;
-- Port for std_logic_vector field: 'TAI seconds counter bits 31..0' in reg: 'TVLR'
reg_tvlr_o : out std_logic_vector(31 downto 0);
reg_tvlr_i : in std_logic_vector(31 downto 0);
reg_tvlr_load_o : out std_logic;
-- Port for std_logic_vector field: 'TAI seconds counter bits 39..32' in reg: 'TVHR'
reg_tvhr_o : out std_logic_vector(7 downto 0);
reg_tvhr_i : in std_logic_vector(7 downto 0);
reg_tvhr_load_o : out std_logic;
-- Port for std_logic_vector field: 'Channel mask' in reg: 'TBMR'
reg_tbmr_chan_i : in std_logic_vector(5 downto 0);
-- Port for BIT field: 'White Rabbit present' in reg: 'TBMR'
reg_tbmr_wrtag_i : in std_logic;
-- Tag buffer read request, asserted when reading from TBMR
reg_tb_rd_req_p_o : out std_logic;
-- Port for std_logic_vector field: 'Cycles counter' in reg: 'TBCYR'
reg_tbcyr_i : in std_logic_vector(27 downto 0);
-- Port for std_logic_vector field: 'Lower part of TAI seconds counter' in reg: 'TBTLR'
reg_tbtlr_i : in std_logic_vector(31 downto 0);
-- Port for std_logic_vector field: 'Upper part of TAI seconds counter' in reg: 'TBTHR'
reg_tbthr_i : in std_logic_vector(7 downto 0);
-- Port for std_logic_vector field: 'Buffer counter' in reg: 'TBCSR'
reg_tbcsr_usedw_i : in std_logic_vector(6 downto 0);
-- Port for BIT field: 'Buffer full' in reg: 'TBCSR'
reg_tbcsr_full_i : in std_logic;
-- Port for BIT field: 'Buffer empty' in reg: 'TBCSR'
reg_tbcsr_empty_i : in std_logic;
-- Ports for BIT field: 'Clear tag buffer' in reg: 'TBCSR'
reg_tbcsr_clr_o : out std_logic;
reg_tbcsr_clr_i : in std_logic;
reg_tbcsr_clr_load_o : out std_logic;
-- Port for std_logic_vector field: 'Lower part of TAI seconds counter' in reg: 'CH1LTSTLR'
reg_ch1ltstlr_i : in std_logic_vector(31 downto 0);
-- Port for std_logic_vector field: 'Upper part of TAI seconds counter' in reg: 'CH1LTSTHR'
reg_ch1ltsthr_tai_i : in std_logic_vector(7 downto 0);
-- Port for BIT field: 'White Rabbit present' in reg: 'CH1LTSTHR'
reg_ch1ltsthr_wrtag_i : in std_logic;
-- Port for std_logic_vector field: 'Lower part of TAI seconds counter' in reg: 'CH2LTSTLR'
reg_ch2ltstlr_i : in std_logic_vector(31 downto 0);
-- Port for std_logic_vector field: 'Upper part of TAI seconds counter' in reg: 'CH2LTSTHR'
reg_ch2ltsthr_tai_i : in std_logic_vector(7 downto 0);
-- Port for BIT field: 'White Rabbit present' in reg: 'CH2LTSTHR'
reg_ch2ltsthr_wrtag_i : in std_logic;
-- Port for std_logic_vector field: 'Lower part of TAI seconds counter' in reg: 'CH3LTSTLR'
reg_ch3ltstlr_i : in std_logic_vector(31 downto 0);
-- Port for std_logic_vector field: 'Upper part of TAI seconds counter' in reg: 'CH3LTSTHR'
reg_ch3ltsthr_tai_i : in std_logic_vector(7 downto 0);
-- Port for BIT field: 'White Rabbit present' in reg: 'CH3LTSTHR'
reg_ch3ltsthr_wrtag_i : in std_logic;
-- Port for std_logic_vector field: 'Lower part of TAI seconds counter' in reg: 'CH4LTSTLR'
reg_ch4ltstlr_i : in std_logic_vector(31 downto 0);
-- Port for std_logic_vector field: 'Upper part of TAI seconds counter' in reg: 'CH4LTSTHR'
reg_ch4ltsthr_tai_i : in std_logic_vector(7 downto 0);
-- Port for BIT field: 'White Rabbit present' in reg: 'CH4LTSTHR'
reg_ch4ltsthr_wrtag_i : in std_logic;
-- Port for std_logic_vector field: 'Lower part of TAI seconds counter' in reg: 'CH5LTSTLR'
reg_ch5ltstlr_i : in std_logic_vector(31 downto 0);
-- Port for std_logic_vector field: 'Upper part of TAI seconds counter' in reg: 'CH5LTSTHR'
reg_ch5ltsthr_tai_i : in std_logic_vector(7 downto 0);
-- Port for BIT field: 'White Rabbit present' in reg: 'CH5LTSTHR'
reg_ch5ltsthr_wrtag_i : in std_logic;
-- Port for std_logic_vector field: 'Lower part of TAI seconds counter' in reg: 'CH6LTSTLR'
reg_ch6ltstlr_i : in std_logic_vector(31 downto 0);
-- Port for std_logic_vector field: 'Upper part of TAI seconds counter' in reg: 'CH6LTSTHR'
reg_ch6ltsthr_tai_i : in std_logic_vector(7 downto 0);
-- Port for BIT field: 'White Rabbit present' in reg: 'CH6LTSTHR'
reg_ch6ltsthr_wrtag_i : in std_logic;
-- Port for std_logic_vector field: 'Front panel TTL input state' in reg: 'LSR'
reg_lsr_front_ttl_i : in std_logic_vector(5 downto 0);
-- Port for std_logic_vector field: 'Front panel TTL-BAR input state' in reg: 'LSR'
reg_lsr_front_invttl_i : in std_logic_vector(3 downto 0);
-- Port for std_logic_vector field: 'Rear panel input state' in reg: 'LSR'
reg_lsr_rear_i : in std_logic_vector(5 downto 0);
-- Port for std_logic_vector field: 'Input failsafe state' in reg: 'LSR'
reg_lsr_fs_i : in std_logic_vector(5 downto 0);
-- Port for std_logic_vector field: 'State of MultiCast switches' in reg: 'MSWR'
reg_mswr_bit_i : in std_logic_vector(3 downto 0)
);
end component conv_regs;
-- Converter board registers SDB definition
constant c_conv_regs_sdb : t_sdb_device := (
abi_class => x"0000", -- undocumented device
abi_ver_major => x"01",
abi_ver_minor => x"00",
wbd_endian => c_sdb_endian_big,
wbd_width => x"7", -- 8/16/32-bit port granularity
sdb_component => (
addr_first => x"0000000000000000",
addr_last => x"00000000000000ff",
product => (
vendor_id => x"000000000000CE42", -- CERN
device_id => x"3ab464e8", -- echo "conv_regs " | md5sum | cut -c1-8
version => x"00000001",
date => x"20140731",
name => "conv_regs ")));
end package conv_common_gw_pkg;
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