derek/lt16lab
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Fix scrolling controller once and for all

Browse Source
This commit is contained in:
Derek Christ
2023-01-17 19:31:56 +01:00
parent 8636a9dcf5
commit 78d23f1459
6 changed files with 339 additions and 88 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
soc/peripheral/scrolling_buffer.vhd
View File

@@ -65,25 +65,21 @@ begin
if clk'event and clk='1' then
if rst = '1' then
ptr_read <= 0;
hex_char <= (others => '0');
hex_char <= (others => '1');
else
hex_char <= (others => '0');
if ptr_last = -1 then -- Special case
hex_char <= (others => '1');
else
hex_char <= ring_buffer(ptr_read);
end if;
if buffer_clear = '1' then
ptr_read <= 0;
else
if next_char = '1' then
if ptr_last = -1 then -- Special case
hex_char <= (others => '0');
else
hex_char <= ring_buffer(ptr_read);
if ptr_read = ptr_last then
ptr_read <= 0;
else
ptr_read <= ptr_read + 1;
end if;
end if;
elsif next_char = '1' then
if ptr_read = ptr_last then
ptr_read <= 0;
else
ptr_read <= ptr_read + 1;
end if;
end if;
end if;

106
soc/peripheral/scrolling_controller.vhd
View File

@@ -25,10 +25,6 @@ architecture Behavioral of scrolling_controller is
type state_type is (s_off, s_wait, s_update);
signal state : state_type;
signal sig_seg_shift : std_logic;
signal sig_seg_write : std_logic;
signal sig_seg_clear : std_logic;
signal current_element : integer range 0 to 16;
signal current_resetted : std_logic;
@@ -42,12 +38,11 @@ begin
cnt_start <= '0';
next_char <= '0';
sig_seg_shift <= '0';
sig_seg_write <= '0';
sig_seg_clear <= '0';
seg_shift <= '0';
seg_write <= '0';
seg_clear <= '0';
current_element <= 0;
current_resetted <= '0';
else
case state is
when s_off =>
@@ -55,47 +50,52 @@ begin
if on_off = '0' then
state <= s_off;
sig_seg_shift <= '0';
sig_seg_write <= '0';
sig_seg_clear <= '0';
seg_shift <= '0';
seg_write <= '0';
seg_clear <= '0';
cnt_start <= '0';
next_char <= '0';
else
state <= s_wait;
sig_seg_shift <= '0';
sig_seg_write <= '0';
sig_seg_clear <= '0';
state <= s_update;
-- seg_shift <= '1';
-- seg_write <= '1';
-- seg_off <= hex_char(4);
-- seg_data <= hex_char(3 downto 0);
-- seg_clear <= '0';
cnt_start <= '1';
next_char <= '0';
current_element <= current_element + 1;
end if;
when s_wait =>
if on_off = '1' then
state <= s_off;
sig_seg_clear <= '1';
seg_clear <= '1';
seg_write <= '0';
seg_shift <= '0';
cnt_start <= '0';
next_char <= '0';
elsif cnt_done = '0' then
state <= s_wait;
sig_seg_shift <= '0';
sig_seg_write <= '0';
sig_seg_clear <= '0';
seg_shift <= '0';
seg_write <= '0';
seg_clear <= '0';
cnt_start <= '0';
next_char <= '0';
else -- cnt_done = '1'
state <= s_update;
sig_seg_shift <= '0';
sig_seg_write <= '0';
sig_seg_clear <= '0';
seg_shift <= '0';
seg_write <= '0';
seg_clear <= '0';
cnt_start <= '1';
if current_element < unsigned(buffer_elements) then
next_char <= '1';
end if;
-- if current_element < unsigned(buffer_elements) then
-- next_char <= '1';
-- else
-- next_char <= '0';
-- end if;
current_resetted <= '0';
if current_element = 15 then
current_element <= 0;
current_resetted <= '1';
current_element <= 1;
else
current_element <= current_element + 1;
end if;
@@ -103,14 +103,29 @@ begin
when s_update =>
if on_off = '0' then
state <= s_wait;
sig_seg_shift <= '1';
sig_seg_write <= '1';
sig_seg_clear <= '0';
seg_shift <= '1';
seg_write <= '1';
seg_clear <= '0';
cnt_start <= '0';
next_char <= '0';
if current_element <= unsigned(buffer_elements) then
next_char <= '1';
else
next_char <= '0';
end if;
if current_element <= unsigned(buffer_elements) then
seg_data <= hex_char(3 downto 0);
seg_off <= hex_char(4);
else
seg_data <= x"0";
seg_off <= '1';
end if;
else
state <= s_off;
sig_seg_clear <= '1';
seg_clear <= '1';
seg_write <= '0';
seg_shift <= '0';
cnt_start <= '0';
next_char <= '0';
end if;
@@ -118,30 +133,5 @@ begin
end if;
end if;
end process;
process(clk)
begin
if clk'event and clk='1' then
if rst = '1' then
seg_data <= (others => '0');
seg_off <= '0';
seg_shift <= '0';
seg_write <= '0';
seg_clear <= '1';
else
if current_element < unsigned(buffer_elements) and not (current_resetted = '1' and unsigned(buffer_elements) /= 16) then
seg_data <= hex_char(3 downto 0);
seg_off <= hex_char(4);
else
seg_data <= x"0";
seg_off <= '1';
end if;
seg_clear <= sig_seg_clear;
seg_write <= sig_seg_write;
seg_shift <= sig_seg_shift;
end if;
end if;
end process;
end Behavioral;

4
soc/peripheral/seven_segment_display.vhd
View File

@@ -54,8 +54,8 @@ begin
);
timer: simple_timer
-- generic map (timer_start => x"00000008") -- for simulation
generic map (timer_start => x"00000F00") -- for board
generic map (timer_start => x"00000008") -- for simulation
-- generic map (timer_start => x"00000F00") -- for board
port map(
clk => clk,
rst => rst,

18
soc/top/top.vhd
View File

@@ -14,7 +14,7 @@ use work.lt16soc_peripherals.all;
entity lt16soc_top is
generic(
programfilename : string := "../../programs/interrupt_test.ram" -- see "Synthesize XST" process properties for actual value ("-generics" in .xst file)!
programfilename : string := "../../programs/project.ram" -- see "Synthesize XST" process properties for actual value ("-generics" in .xst file)!
);
port(
-- clock signal
@@ -30,8 +30,10 @@ port(
anodes : out std_logic_vector(7 downto 0);
cathodes : out std_logic_vector(7 downto 0);
can_rx_i : in std_logic;
can_tx_o : out std_logic
pmod_rxd : in std_logic;
pmod_txd : out std_logic;
pmod_de : out std_logic;
pmod_re_n : out std_logic
);
end entity lt16soc_top;
@@ -60,6 +62,8 @@ architecture RTL of lt16soc_top is
signal irq_lines : std_logic_vector((2 ** irq_num_width) - 1 downto 0) := (others=>'0');
signal can_tx : std_logic;
--//////////////////////////////////////////////////////
-- components
--//////////////////////////////////////////////////////
@@ -193,8 +197,8 @@ begin
rstn => rst_gen,
wbs_i => slvi(CFG_CAN),
wbs_o => slvo(CFG_CAN),
rx_i => can_rx_i,
tx_o => can_tx_o,
rx_i => pmod_rxd,
tx_o => pmod_txd,
irq_on => irq_lines(4)
);
@@ -246,4 +250,8 @@ begin
cathodes => cathodes
);
pmod_re_n <= '0';
pmod_de <= not can_tx;
pmod_txd <= can_tx;
end architecture RTL;

16
soc/top/top.xdc
View File

@@ -81,20 +81,20 @@ set_property -dict { PACKAGE_PIN P18 IOSTANDARD LVCMOS33 } [get_ports { btn[4]
##Pmod Headers
##Pmod Header JA
set_property -dict { PACKAGE_PIN C17 IOSTANDARD LVCMOS33 } [get_ports { pmod_re_n[0] }]; #IO_L20N_T3_A19_15 Sch=ja[1]
set_property -dict { PACKAGE_PIN D18 IOSTANDARD LVCMOS33 } [get_ports { pmod_txd[0] }]; #IO_L21N_T3_DQS_A18_15 Sch=ja[2]
set_property -dict { PACKAGE_PIN E18 IOSTANDARD LVCMOS33 } [get_ports { pmod_rxd[0] }]; #IO_L21P_T3_DQS_15 Sch=ja[3]
set_property -dict { PACKAGE_PIN G17 IOSTANDARD LVCMOS33 } [get_ports { pmod_de[0] }]; #IO_L18N_T2_A23_15 Sch=ja[4]
set_property -dict { PACKAGE_PIN C17 IOSTANDARD LVCMOS33 } [get_ports { pmod_re_n }]; #IO_L20N_T3_A19_15 Sch=ja[1]
set_property -dict { PACKAGE_PIN D18 IOSTANDARD LVCMOS33 } [get_ports { pmod_txd }]; #IO_L21N_T3_DQS_A18_15 Sch=ja[2]
set_property -dict { PACKAGE_PIN E18 IOSTANDARD LVCMOS33 } [get_ports { pmod_rxd }]; #IO_L21P_T3_DQS_15 Sch=ja[3]
set_property -dict { PACKAGE_PIN G17 IOSTANDARD LVCMOS33 } [get_ports { pmod_de }]; #IO_L18N_T2_A23_15 Sch=ja[4]
#set_property -dict { PACKAGE_PIN D17 IOSTANDARD LVCMOS33 } [get_ports { JA[7] }]; #IO_L16N_T2_A27_15 Sch=ja[7]
#set_property -dict { PACKAGE_PIN E17 IOSTANDARD LVCMOS33 } [get_ports { JA[8] }]; #IO_L16P_T2_A28_15 Sch=ja[8]
#set_property -dict { PACKAGE_PIN F18 IOSTANDARD LVCMOS33 } [get_ports { JA[9] }]; #IO_L22N_T3_A16_15 Sch=ja[9]
#set_property -dict { PACKAGE_PIN G18 IOSTANDARD LVCMOS33 } [get_ports { JA[10] }]; #IO_L22P_T3_A17_15 Sch=ja[10]
##Pmod Header JB
set_property -dict { PACKAGE_PIN D14 IOSTANDARD LVCMOS33 } [get_ports { pmod_re_n[1] }]; #IO_L1P_T0_AD0P_15 Sch=jb[1]
set_property -dict { PACKAGE_PIN F16 IOSTANDARD LVCMOS33 } [get_ports { pmod_txd[1] }]; #IO_L14N_T2_SRCC_15 Sch=jb[2]
set_property -dict { PACKAGE_PIN G16 IOSTANDARD LVCMOS33 } [get_ports { pmod_rxd[1] }]; #IO_L13N_T2_MRCC_15 Sch=jb[3]
set_property -dict { PACKAGE_PIN H14 IOSTANDARD LVCMOS33 } [get_ports { pmod_de[1] }]; #IO_L15P_T2_DQS_15 Sch=jb[4]
#set_property -dict { PACKAGE_PIN D14 IOSTANDARD LVCMOS33 } [get_ports { pmod_re_n[1] }]; #IO_L1P_T0_AD0P_15 Sch=jb[1]
#set_property -dict { PACKAGE_PIN F16 IOSTANDARD LVCMOS33 } [get_ports { pmod_txd[1] }]; #IO_L14N_T2_SRCC_15 Sch=jb[2]
#set_property -dict { PACKAGE_PIN G16 IOSTANDARD LVCMOS33 } [get_ports { pmod_rxd[1] }]; #IO_L13N_T2_MRCC_15 Sch=jb[3]
#set_property -dict { PACKAGE_PIN H14 IOSTANDARD LVCMOS33 } [get_ports { pmod_de[1] }]; #IO_L15P_T2_DQS_15 Sch=jb[4]
#set_property -dict { PACKAGE_PIN E16 IOSTANDARD LVCMOS33 } [get_ports { JB[7] }]; #IO_L11N_T1_SRCC_15 Sch=jb[7]
#set_property -dict { PACKAGE_PIN F13 IOSTANDARD LVCMOS33 } [get_ports { JB[8] }]; #IO_L5P_T0_AD9P_15 Sch=jb[8]
#set_property -dict { PACKAGE_PIN G13 IOSTANDARD LVCMOS33 } [get_ports { JB[9] }]; #IO_0_15 Sch=jb[9]

257
soc/top/top_project.vhd Normal file
View File

@@ -0,0 +1,257 @@
-- See the file "LICENSE" for the full license governing this code. --
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use ieee.numeric_std.all;
library work;
use work.lt16x32_internal.all;
use work.lt16x32_global.all;
use work.wishbone.all;
use work.config.all;
use work.lt16soc_memories.all;
use work.lt16soc_peripherals.all;
entity lt16soc_top_project is
generic(
programfilename : string := "../../programs/project.ram" -- see "Synthesize XST" process properties for actual value ("-generics" in .xst file)!
);
port(
-- clock signal
clk : in std_logic;
-- external reset button
rst : in std_logic;
led : out std_logic_vector(7 downto 0);
btn : in std_logic_vector(4 downto 0);
sw : in std_logic_vector(15 downto 0);
anodes : out std_logic_vector(7 downto 0);
cathodes : out std_logic_vector(7 downto 0);
pmod_rxd : in std_logic;
pmod_txd : out std_logic;
pmod_de : out std_logic;
pmod_re_n : out std_logic
);
end entity lt16soc_top_project;
architecture RTL of lt16soc_top_project is
--//////////////////////////////////////////////////////
-- constant & signal
--//////////////////////////////////////////////////////
signal rst_gen : std_logic;
constant slv_mask_vector : std_logic_vector(0 to NWBSLV-1) := b"1111_1110_0000_0001";
constant mst_mask_vector : std_logic_vector(0 to NWBMST-1) := b"1000";
signal slvo : wb_slv_out_vector := (others=> wbs_out_none);
signal msto : wb_mst_out_vector := (others=> wbm_out_none);
signal slvi : wb_slv_in_vector := (others=> wbs_in_none);
signal msti : wb_mst_in_vector := (others=> wbm_in_none);
signal core2mem : core_imem;
signal mem2core : imem_core;
signal irq2core : irq_core;
signal core2irq : core_irq;
signal irq_lines : std_logic_vector((2 ** irq_num_width) - 1 downto 0) := (others=>'0');
signal can_tx : std_logic;
--//////////////////////////////////////////////////////
-- components
--//////////////////////////////////////////////////////
component corewrapper
port(
clk : in std_logic;
rst : in std_logic;
in_imem : in imem_core;
out_imem : out core_imem;
in_proc : in irq_core;
out_proc : out core_irq;
hardfault : out std_logic;
wmsti : in wb_mst_in_type;
wmsto : out wb_mst_out_type
);
end component;
component irq_controller
port(
clk : in std_logic;
rst : in std_logic;
in_proc : in core_irq;
out_proc : out irq_core;
irq_lines : in std_logic_vector((2 ** irq_num_width) - 1 downto 0)
);
end component;
component wb_intercon
generic(
slv_mask_vector : std_logic_vector(0 to NWBSLV-1) := b"0000_0000_0000_0000";
mst_mask_vector : std_logic_vector(0 to NWBMST-1) := b"0000"
);
port(
clk : in std_logic;
rst : in std_logic;
msti : out wb_mst_in_vector;
msto : in wb_mst_out_vector;
slvi : out wb_slv_in_vector;
slvo : in wb_slv_out_vector
);
end component;
begin
with RST_ACTIVE_HIGH select rst_gen <=
rst when true,
not rst when others;
--//////////////////////////////////////////////////////
-- Instantiate
--//////////////////////////////////////////////////////
corewrap_inst: corewrapper
port map(
clk => clk,
rst => rst_gen,
in_imem => mem2core,
out_imem => core2mem,
in_proc => irq2core,
out_proc => core2irq,
hardfault => irq_lines(1),
wmsti => msti(CFG_LT16),
wmsto => msto(CFG_LT16)
);
irqcontr_inst: irq_controller
port map(
clk => clk,
rst => rst_gen,
in_proc => core2irq,
out_proc => irq2core,
irq_lines => irq_lines
);
wbicn_inst: wb_intercon
generic map(
slv_mask_vector => slv_mask_vector,
mst_mask_vector => mst_mask_vector
)
port map(
clk => clk,
rst => rst_gen,
msti => msti,
msto => msto,
slvi => slvi,
slvo => slvo
);
memwrap_inst: memwrapper
generic map(
memaddr => CFG_BADR_MEM,
addrmask => CFG_MADR_MEM,
filename => programfilename,
size => IMEMSZ
)
port map(
clk => clk,
rst => rst_gen,
in_imem => core2mem,
out_imem => mem2core,
fault => irq_lines(2),
wslvi => slvi(CFG_MEM),
wslvo => slvo(CFG_MEM)
);
dmem : wb_dmem
generic map(
memaddr=>CFG_BADR_DMEM,
addrmask=>CFG_MADR_DMEM)
port map(clk,rst_gen,slvi(CFG_DMEM),slvo(CFG_DMEM));
can_inst : can_vhdl_top
generic map(
memaddr=>CFG_BADR_CAN,
addrmask=>CFG_MADR_CAN
)
port map(
clk => clk,
rstn => rst_gen,
wbs_i => slvi(CFG_CAN),
wbs_o => slvo(CFG_CAN),
rx_i => pmod_rxd,
tx_o => pmod_txd,
irq_on => irq_lines(4)
);
leddev : wb_led
generic map(
CFG_BADR_LED,
CFG_MADR_LED
)
port map(
clk,
rst_gen,
led,
slvi(CFG_LED),
slvo(CFG_LED)
);
swdev : wb_switches
generic map(
CFG_BADR_SW,CFG_MADR_SW
)
port map(
clk,rst_gen,slvi(CFG_SW),slvo(CFG_SW), btn, sw, irq_lines(3)
);
timerdev : wb_timer
generic map(
CFG_BADR_TIMER,
CFG_MADR_TIMER
)
port map(
clk,
rst_gen,
slvi(CFG_TIMER),
slvo(CFG_TIMER)
);
scrollingdev : wb_scrolling
generic map(
memaddr => CFG_BADR_SCR,
addrmask => CFG_MADR_SCR
)
port map(
clk => clk,
rst => rst_gen,
wslvi => slvi(CFG_SCR),
wslvo => slvo(CFG_SCR),
anodes => anodes,
cathodes => cathodes
);
pmod_re_n <= '0';
pmod_de <= not can_tx;
pmod_txd <= can_tx;
end architecture RTL;