aboutsummaryrefslogtreecommitdiffstats
path: root/fpga/usrp2
diff options
context:
space:
mode:
Diffstat (limited to 'fpga/usrp2')
-rw-r--r--fpga/usrp2/control_lib/nsgpio.v76
-rw-r--r--fpga/usrp2/sdr_lib/rx_frontend.v75
-rw-r--r--fpga/usrp2/sdr_lib/tx_frontend.v61
-rw-r--r--fpga/usrp2/simple_gemac/Makefile.srcs1
-rw-r--r--fpga/usrp2/simple_gemac/simple_gemac_wb.v20
-rw-r--r--fpga/usrp2/simple_gemac/simple_gemac_wrapper.v16
-rwxr-xr-xfpga/usrp2/simple_gemac/simple_gemac_wrapper19.build1
-rw-r--r--fpga/usrp2/simple_gemac/simple_gemac_wrapper19.v174
-rw-r--r--fpga/usrp2/simple_gemac/simple_gemac_wrapper19_tb.v226
-rw-r--r--fpga/usrp2/timing/time_64bit.v14
-rw-r--r--fpga/usrp2/top/N2x0/u2plus_core.v24
-rw-r--r--fpga/usrp2/top/USRP2/u2_core.v32
-rw-r--r--fpga/usrp2/vrt/vita_rx_control.v39
13 files changed, 196 insertions, 563 deletions
diff --git a/fpga/usrp2/control_lib/nsgpio.v b/fpga/usrp2/control_lib/nsgpio.v
index 26130cc8e..6c6873fee 100644
--- a/fpga/usrp2/control_lib/nsgpio.v
+++ b/fpga/usrp2/control_lib/nsgpio.v
@@ -37,71 +37,57 @@
module nsgpio
(input clk_i, input rst_i,
- input cyc_i, input stb_i, input [3:0] adr_i, input we_i, input [31:0] dat_i,
+ input cyc_i, input stb_i, input [4:0] adr_i, input we_i, input [31:0] dat_i,
output reg [31:0] dat_o, output reg ack_o,
- input [31:0] atr, input [31:0] debug_0, input [31:0] debug_1,
- inout [31:0] gpio
+ input tx, input rx, inout [31:0] gpio
);
- reg [63:0] ctrl;
- reg [31:0] line;
- reg [31:0] lgpio; // LatchedGPIO pins
- reg [31:0] ddr;
+ integer n;
+ reg [31:0] ddr;
+ reg [31:0] idle_out, rx_out, tx_out, fdx_out;
+ reg [31:0] rgpio, igpio;
wire wb_acc = cyc_i & stb_i; // WISHBONE access
wire wb_wr = wb_acc & we_i; // WISHBONE write access
always @(posedge clk_i or posedge rst_i)
if (rst_i)
- begin
- ctrl <= 64'h0;
- line <= 0;
- end
+ ddr <= 0;
else if (wb_wr)
- case( adr_i[3:2] )
- 2'b00 :
- line <= dat_i;
- 2'b01 :
- ddr[31:0] <= dat_i;
- 2'b10 :
- ctrl[63:32] <= dat_i;
- 2'b11 :
- ctrl[31:0] <= dat_i;
- endcase // case( adr_i[3:2] )
-
+ case( adr_i[4:2] )
+ 3'b000 :
+ idle_out <= dat_i;
+ 3'b001 :
+ rx_out <= dat_i;
+ 3'b010 :
+ tx_out <= dat_i;
+ 3'b011 :
+ fdx_out <= dat_i;
+ 3'b100 :
+ ddr <= dat_i;
+ endcase // case ( adr_i[4:2] )
+
always @(posedge clk_i)
- case (adr_i[3:2])
- 2'b00 :
- dat_o <= lgpio;
- 2'b01 :
- dat_o <= ddr;
- 2'b10 :
- dat_o <= ctrl[63:32];
- 2'b11 :
- dat_o <= ctrl[31:0];
- endcase // case(adr_i[3:2])
+ dat_o <= gpio;
always @(posedge clk_i or posedge rst_i)
if (rst_i)
ack_o <= 1'b0;
else
ack_o <= wb_acc & !ack_o;
-
- // latch GPIO input pins
+
always @(posedge clk_i)
- lgpio <= gpio;
-
- // assign GPIO outputs
- integer n;
- reg [31:0] igpio; // temporary internal signal
+ case({tx,rx})
+ 2'b00 : rgpio <= idle_out;
+ 2'b01 : rgpio <= rx_out;
+ 2'b10 : rgpio <= tx_out;
+ 2'b11 : rgpio <= fdx_out;
+ endcase // case ({tx,rx})
- always @(ctrl or line or debug_1 or debug_0 or atr or ddr)
+ always @*
for(n=0;n<32;n=n+1)
- igpio[n] <= ddr[n] ? (ctrl[2*n+1] ? (ctrl[2*n] ? debug_1[n] : debug_0[n]) :
- (ctrl[2*n] ? atr[n] : line[n]) )
- : 1'bz;
-
+ igpio[n] <= ddr[n] ? rgpio[n] : 1'bz;
+
assign gpio = igpio;
endmodule
-
diff --git a/fpga/usrp2/sdr_lib/rx_frontend.v b/fpga/usrp2/sdr_lib/rx_frontend.v
index 04b14787e..edfbe62df 100644
--- a/fpga/usrp2/sdr_lib/rx_frontend.v
+++ b/fpga/usrp2/sdr_lib/rx_frontend.v
@@ -1,6 +1,7 @@
module rx_frontend
- #(parameter BASE = 0)
+ #(parameter BASE = 0,
+ parameter IQCOMP_EN = 0)
(input clk, input rst,
input set_stb, input [7:0] set_addr, input [31:0] set_data,
@@ -16,7 +17,6 @@ module rx_frontend
wire [17:0] adc_i_ofs, adc_q_ofs;
wire [35:0] corr_i, corr_q; wire [17:0] mag_corr,phase_corr;
wire swap_iq;
- wire [23:0] i_final, q_final;
setting_reg #(.my_addr(BASE), .width(1)) sr_8
(.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr),
@@ -35,39 +35,44 @@ module rx_frontend
setting_reg #(.my_addr(BASE+2),.width(18)) sr_2
(.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr),
.in(set_data),.out(phase_corr),.changed());
-
- rx_dcoffset #(.WIDTH(18),.ADDR(BASE+3)) rx_dcoffset_i
- (.clk(clk),.rst(rst),.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
- .in({adc_i,2'b00}),.out(adc_i_ofs));
-
- rx_dcoffset #(.WIDTH(18),.ADDR(BASE+4)) rx_dcoffset_q
- (.clk(clk),.rst(rst),.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
- .in({adc_q,2'b00}),.out(adc_q_ofs));
-
- MULT18X18S mult_mag_corr
- (.P(corr_i), .A(adc_i_ofs), .B(mag_corr), .C(clk), .CE(1), .R(rst) );
- MULT18X18S mult_phase_corr
- (.P(corr_q), .A(adc_i_ofs), .B(phase_corr), .C(clk), .CE(1), .R(rst) );
-
- add2_and_clip_reg #(.WIDTH(24)) add_clip_i
- (.clk(clk), .rst(rst),
- .in1({adc_i_ofs,6'd0}), .in2({{4{corr_i[35]}},corr_i[35:16]}), .strobe_in(1'b1),
- .sum(i_final), .strobe_out());
-
- add2_and_clip_reg #(.WIDTH(24)) add_clip_q
- (.clk(clk), .rst(rst),
- .in1({adc_q_ofs,6'd0}), .in2({{4{corr_q[35]}},corr_q[35:16]}), .strobe_in(1'b1),
- .sum(q_final), .strobe_out());
-
- assign i_out = i_final;
- assign q_out = q_final;
-
- /*
- round_sd #(.WIDTH_IN(24),.WIDTH_OUT(18)) round_i
- (.clk(clk), .reset(rst), .in(i_final), .strobe_in(1'b1), .out(i_out), .strobe_out());
+ generate
+ if(IQCOMP_EN == 1)
+ begin
+ rx_dcoffset #(.WIDTH(18),.ADDR(BASE+3)) rx_dcoffset_i
+ (.clk(clk),.rst(rst),.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
+ .in({adc_i,2'b00}),.out(adc_i_ofs));
+
+ rx_dcoffset #(.WIDTH(18),.ADDR(BASE+4)) rx_dcoffset_q
+ (.clk(clk),.rst(rst),.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
+ .in({adc_q,2'b00}),.out(adc_q_ofs));
+
+ MULT18X18S mult_mag_corr
+ (.P(corr_i), .A(adc_i_ofs), .B(mag_corr), .C(clk), .CE(1), .R(rst) );
+
+ MULT18X18S mult_phase_corr
+ (.P(corr_q), .A(adc_i_ofs), .B(phase_corr), .C(clk), .CE(1), .R(rst) );
+
+ add2_and_clip_reg #(.WIDTH(24)) add_clip_i
+ (.clk(clk), .rst(rst),
+ .in1({adc_i_ofs,6'd0}), .in2({{4{corr_i[35]}},corr_i[35:16]}), .strobe_in(1'b1),
+ .sum(i_out), .strobe_out());
+
+ add2_and_clip_reg #(.WIDTH(24)) add_clip_q
+ (.clk(clk), .rst(rst),
+ .in1({adc_q_ofs,6'd0}), .in2({{4{corr_q[35]}},corr_q[35:16]}), .strobe_in(1'b1),
+ .sum(q_out), .strobe_out());
+ end // if (IQCOMP_EN == 1)
+ else
+ begin
+ rx_dcoffset #(.WIDTH(24),.ADDR(BASE+3)) rx_dcoffset_i
+ (.clk(clk),.rst(rst),.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
+ .in({adc_i,8'b00}),.out(i_out));
+
+ rx_dcoffset #(.WIDTH(24),.ADDR(BASE+4)) rx_dcoffset_q
+ (.clk(clk),.rst(rst),.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
+ .in({adc_q,8'b00}),.out(q_out));
+ end // else: !if(IQCOMP_EN == 1)
+ endgenerate
- round_sd #(.WIDTH_IN(24),.WIDTH_OUT(18)) round_q
- (.clk(clk), .reset(rst), .in(q_final), .strobe_in(1'b1), .out(q_out), .strobe_out());
- */
endmodule // rx_frontend
diff --git a/fpga/usrp2/sdr_lib/tx_frontend.v b/fpga/usrp2/sdr_lib/tx_frontend.v
index d8525dd25..1e7f0bf31 100644
--- a/fpga/usrp2/sdr_lib/tx_frontend.v
+++ b/fpga/usrp2/sdr_lib/tx_frontend.v
@@ -1,7 +1,8 @@
module tx_frontend
#(parameter BASE=0,
- parameter WIDTH_OUT=16)
+ parameter WIDTH_OUT=16,
+ parameter IQCOMP_EN=0)
(input clk, input rst,
input set_stb, input [7:0] set_addr, input [31:0] set_data,
input [23:0] tx_i, input [23:0] tx_q, input run,
@@ -37,30 +38,44 @@ module tx_frontend
(.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr),
.in(set_data),.out(mux_ctrl),.changed());
- // IQ Balance
- MULT18X18S mult_mag_corr
- (.P(corr_i), .A(tx_i[23:6]), .B(mag_corr), .C(clk), .CE(1), .R(rst) );
-
- MULT18X18S mult_phase_corr
- (.P(corr_q), .A(tx_i[23:6]), .B(phase_corr), .C(clk), .CE(1), .R(rst) );
-
- add2_and_clip_reg #(.WIDTH(24)) add_clip_i
- (.clk(clk), .rst(rst),
- .in1(tx_i), .in2({{4{corr_i[35]}},corr_i[35:16]}), .strobe_in(1'b1),
- .sum(i_bal), .strobe_out());
-
- add2_and_clip_reg #(.WIDTH(24)) add_clip_q
- (.clk(clk), .rst(rst),
- .in1(tx_q), .in2({{4{corr_q[35]}},corr_q[35:16]}), .strobe_in(1'b1),
- .sum(q_bal), .strobe_out());
+ generate
+ if(IQCOMP_EN==1)
+ begin
+ // IQ Balance
+ MULT18X18S mult_mag_corr
+ (.P(corr_i), .A(tx_i[23:6]), .B(mag_corr), .C(clk), .CE(1), .R(rst) );
+
+ MULT18X18S mult_phase_corr
+ (.P(corr_q), .A(tx_i[23:6]), .B(phase_corr), .C(clk), .CE(1), .R(rst) );
+
+ add2_and_clip_reg #(.WIDTH(24)) add_clip_i
+ (.clk(clk), .rst(rst),
+ .in1(tx_i), .in2({{4{corr_i[35]}},corr_i[35:16]}), .strobe_in(1'b1),
+ .sum(i_bal), .strobe_out());
+
+ add2_and_clip_reg #(.WIDTH(24)) add_clip_q
+ (.clk(clk), .rst(rst),
+ .in1(tx_q), .in2({{4{corr_q[35]}},corr_q[35:16]}), .strobe_in(1'b1),
+ .sum(q_bal), .strobe_out());
- // DC Offset
- add2_and_clip_reg #(.WIDTH(24)) add_dco_i
- (.clk(clk), .rst(rst), .in1(i_dco), .in2(i_bal), .strobe_in(1'b1), .sum(i_ofs), .strobe_out());
+ // DC Offset
+ add2_and_clip_reg #(.WIDTH(24)) add_dco_i
+ (.clk(clk), .rst(rst), .in1(i_dco), .in2(i_bal), .strobe_in(1'b1), .sum(i_ofs), .strobe_out());
+
+ add2_and_clip_reg #(.WIDTH(24)) add_dco_q
+ (.clk(clk), .rst(rst), .in1(q_dco), .in2(q_bal), .strobe_in(1'b1), .sum(q_ofs), .strobe_out());
+ end // if (IQCOMP_EN==1)
+ else
+ begin
+ // DC Offset
+ add2_and_clip_reg #(.WIDTH(24)) add_dco_i
+ (.clk(clk), .rst(rst), .in1(i_dco), .in2(tx_i), .strobe_in(1'b1), .sum(i_ofs), .strobe_out());
+
+ add2_and_clip_reg #(.WIDTH(24)) add_dco_q
+ (.clk(clk), .rst(rst), .in1(q_dco), .in2(tx_q), .strobe_in(1'b1), .sum(q_ofs), .strobe_out());
+ end // else: !if(IQCOMP_EN==1)
+ endgenerate
- add2_and_clip_reg #(.WIDTH(24)) add_dco_q
- (.clk(clk), .rst(rst), .in1(q_dco), .in2(q_bal), .strobe_in(1'b1), .sum(q_ofs), .strobe_out());
-
// Rounding
round_sd #(.WIDTH_IN(24),.WIDTH_OUT(WIDTH_OUT)) round_i
(.clk(clk), .reset(rst), .in(i_ofs),.strobe_in(1'b1), .out(i_final), .strobe_out());
diff --git a/fpga/usrp2/simple_gemac/Makefile.srcs b/fpga/usrp2/simple_gemac/Makefile.srcs
index 7bcc58c91..4ba3852b0 100644
--- a/fpga/usrp2/simple_gemac/Makefile.srcs
+++ b/fpga/usrp2/simple_gemac/Makefile.srcs
@@ -7,7 +7,6 @@
##################################################
SIMPLE_GEMAC_SRCS = $(abspath $(addprefix $(BASE_DIR)/../simple_gemac/, \
simple_gemac_wrapper.v \
-simple_gemac_wrapper19.v \
simple_gemac.v \
simple_gemac_wb.v \
simple_gemac_tx.v \
diff --git a/fpga/usrp2/simple_gemac/simple_gemac_wb.v b/fpga/usrp2/simple_gemac/simple_gemac_wb.v
index bcf18f9a8..0ddb8398a 100644
--- a/fpga/usrp2/simple_gemac/simple_gemac_wb.v
+++ b/fpga/usrp2/simple_gemac/simple_gemac_wb.v
@@ -161,19 +161,19 @@ module simple_gemac_wb
always @(posedge wb_clk)
case(wb_adr[7:2])
- 0 : wb_dat_o <= misc_settings;
- 1 : wb_dat_o <= ucast_addr[47:32];
- 2 : wb_dat_o <= ucast_addr[31:0];
- 3 : wb_dat_o <= mcast_addr[47:32];
- 4 : wb_dat_o <= mcast_addr[31:0];
- 5 : wb_dat_o <= {NoPre,Divider};
- 6 : wb_dat_o <= MIIADDRESS;
- 7 : wb_dat_o <= CtrlData;
+ //0 : wb_dat_o <= misc_settings;
+ //1 : wb_dat_o <= ucast_addr[47:32];
+ //2 : wb_dat_o <= ucast_addr[31:0];
+ //3 : wb_dat_o <= mcast_addr[47:32];
+ //4 : wb_dat_o <= mcast_addr[31:0];
+ //5 : wb_dat_o <= {NoPre,Divider};
+ //6 : wb_dat_o <= MIIADDRESS;
+ //7 : wb_dat_o <= CtrlData;
8 : wb_dat_o <= MIICOMMAND;
9 : wb_dat_o <= MIISTATUS;
10: wb_dat_o <= MIIRX_DATA;
- 11: wb_dat_o <= pause_time;
- 12: wb_dat_o <= pause_thresh;
+ //11: wb_dat_o <= pause_time;
+ //12: wb_dat_o <= pause_thresh;
endcase // case (wb_adr[7:2])
endmodule // simple_gemac_wb
diff --git a/fpga/usrp2/simple_gemac/simple_gemac_wrapper.v b/fpga/usrp2/simple_gemac/simple_gemac_wrapper.v
index 9763578b9..ec09379ed 100644
--- a/fpga/usrp2/simple_gemac/simple_gemac_wrapper.v
+++ b/fpga/usrp2/simple_gemac/simple_gemac_wrapper.v
@@ -18,7 +18,8 @@
module simple_gemac_wrapper
#(parameter RXFIFOSIZE=9,
- parameter TXFIFOSIZE=9)
+ parameter TXFIFOSIZE=9,
+ parameter RX_FLOW_CTRL=0)
(input clk125, input reset,
// GMII
output GMII_GTX_CLK, output GMII_TX_EN, output GMII_TX_ER, output [7:0] GMII_TXD,
@@ -60,7 +61,7 @@ module simple_gemac_wrapper
.GMII_TX_ER(GMII_TX_ER), .GMII_TXD(GMII_TXD),
.GMII_RX_CLK(GMII_RX_CLK), .GMII_RX_DV(GMII_RX_DV),
.GMII_RX_ER(GMII_RX_ER), .GMII_RXD(GMII_RXD),
- .pause_req(pause_req), .pause_time_req(pause_time_req),
+ .pause_req(RX_FLOW_CTRL ? pause_req : 1'b0), .pause_time_req(RX_FLOW_CTRL ? pause_time_req : 16'd0),
.pause_respect_en(pause_respect_en),
.ucast_addr(ucast_addr), .mcast_addr(mcast_addr),
.pass_ucast(pass_ucast), .pass_mcast(pass_mcast), .pass_bcast(pass_bcast),
@@ -149,10 +150,13 @@ module simple_gemac_wrapper
.tx_data(tx_data), .tx_valid(tx_valid), .tx_error(tx_error), .tx_ack(tx_ack));
// Flow Control
- flow_ctrl_rx flow_ctrl_rx
- (.pause_request_en(pause_request_en), .pause_time(pause_time), .pause_thresh(pause_thresh),
- .rx_clk(rx_clk), .rx_reset(rx_reset), .rx_fifo_space(rx_fifo_space),
- .tx_clk(tx_clk), .tx_reset(tx_reset), .pause_req(pause_req), .pause_time_req(pause_time_req));
+ generate
+ if(RX_FLOW_CTRL==1)
+ flow_ctrl_rx flow_ctrl_rx
+ (.pause_request_en(pause_request_en), .pause_time(pause_time), .pause_thresh(pause_thresh),
+ .rx_clk(rx_clk), .rx_reset(rx_reset), .rx_fifo_space(rx_fifo_space),
+ .tx_clk(tx_clk), .tx_reset(tx_reset), .pause_req(pause_req), .pause_time_req(pause_time_req));
+ endgenerate
wire [31:0] debug_tx, debug_rx;
diff --git a/fpga/usrp2/simple_gemac/simple_gemac_wrapper19.build b/fpga/usrp2/simple_gemac/simple_gemac_wrapper19.build
deleted file mode 100755
index b9475baa2..000000000
--- a/fpga/usrp2/simple_gemac/simple_gemac_wrapper19.build
+++ /dev/null
@@ -1 +0,0 @@
-iverilog -Wimplict -Wportbind -y ../fifo/ -y ../models/ -y . -y miim -y ../coregen/ -y ../control_lib/ -o simple_gemac_wrapper19_tb simple_gemac_wrapper19_tb.v
diff --git a/fpga/usrp2/simple_gemac/simple_gemac_wrapper19.v b/fpga/usrp2/simple_gemac/simple_gemac_wrapper19.v
deleted file mode 100644
index 3e1793d82..000000000
--- a/fpga/usrp2/simple_gemac/simple_gemac_wrapper19.v
+++ /dev/null
@@ -1,174 +0,0 @@
-//
-// Copyright 2011 Ettus Research LLC
-//
-// 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, see <http://www.gnu.org/licenses/>.
-//
-
-
-module simple_gemac_wrapper19
- #(parameter RXFIFOSIZE=9,
- parameter TXFIFOSIZE=6)
- (input clk125, input reset,
- // GMII
- output GMII_GTX_CLK, output GMII_TX_EN, output GMII_TX_ER, output [7:0] GMII_TXD,
- input GMII_RX_CLK, input GMII_RX_DV, input GMII_RX_ER, input [7:0] GMII_RXD,
-
- // Client FIFO Interfaces
- input sys_clk,
- output [18:0] rx_f19_data, output rx_f19_src_rdy, input rx_f19_dst_rdy,
- input [18:0] tx_f19_data, input tx_f19_src_rdy, output tx_f19_dst_rdy,
-
- // Wishbone Interface
- input wb_clk, input wb_rst, input wb_stb, input wb_cyc, output wb_ack, input wb_we,
- input [7:0] wb_adr, input [31:0] wb_dat_i, output [31:0] wb_dat_o,
-
- // MIIM
- inout mdio, output mdc,
- output [31:0] debug);
-
- wire clear = 0;
- wire [7:0] rx_data, tx_data;
- wire tx_clk, tx_valid, tx_error, tx_ack;
- wire rx_clk, rx_valid, rx_error, rx_ack;
-
- wire [47:0] ucast_addr, mcast_addr;
- wire pass_ucast, pass_mcast, pass_bcast, pass_pause, pass_all;
- wire pause_req;
- wire pause_request_en, pause_respect_en;
- wire [15:0] pause_time, pause_thresh, pause_time_req, rx_fifo_space;
-
- wire [31:0] debug_state;
-
- wire tx_reset, rx_reset;
- reset_sync reset_sync_tx (.clk(tx_clk),.reset_in(reset),.reset_out(tx_reset));
- reset_sync reset_sync_rx (.clk(rx_clk),.reset_in(reset),.reset_out(rx_reset));
-
- simple_gemac simple_gemac
- (.clk125(clk125), .reset(reset),
- .GMII_GTX_CLK(GMII_GTX_CLK), .GMII_TX_EN(GMII_TX_EN),
- .GMII_TX_ER(GMII_TX_ER), .GMII_TXD(GMII_TXD),
- .GMII_RX_CLK(GMII_RX_CLK), .GMII_RX_DV(GMII_RX_DV),
- .GMII_RX_ER(GMII_RX_ER), .GMII_RXD(GMII_RXD),
- .pause_req(pause_req), .pause_time_req(pause_time_req),
- .pause_respect_en(pause_respect_en),
- .ucast_addr(ucast_addr), .mcast_addr(mcast_addr),
- .pass_ucast(pass_ucast), .pass_mcast(pass_mcast), .pass_bcast(pass_bcast),
- .pass_pause(pass_pause), .pass_all(pass_all),
- .rx_clk(rx_clk), .rx_data(rx_data),
- .rx_valid(rx_valid), .rx_error(rx_error), .rx_ack(rx_ack),
- .tx_clk(tx_clk), .tx_data(tx_data),
- .tx_valid(tx_valid), .tx_error(tx_error), .tx_ack(tx_ack),
- .debug(debug_state)
- );
-
- simple_gemac_wb simple_gemac_wb
- (.wb_clk(wb_clk), .wb_rst(wb_rst),
- .wb_cyc(wb_cyc), .wb_stb(wb_stb), .wb_ack(wb_ack), .wb_we(wb_we),
- .wb_adr(wb_adr), .wb_dat_i(wb_dat_i), .wb_dat_o(wb_dat_o),
- .mdio(mdio), .mdc(mdc),
- .ucast_addr(ucast_addr), .mcast_addr(mcast_addr),
- .pass_ucast(pass_ucast), .pass_mcast(pass_mcast), .pass_bcast(pass_bcast),
- .pass_pause(pass_pause), .pass_all(pass_all),
- .pause_respect_en(pause_respect_en), .pause_request_en(pause_request_en),
- .pause_time(pause_time), .pause_thresh(pause_thresh) );
-
- // RX FIFO Chain
- wire rx_ll_sof, rx_ll_eof, rx_ll_src_rdy, rx_ll_dst_rdy;
- wire [7:0] rx_ll_data;
-
- wire [18:0] rx_f19_data_int1, rx_f19_data_int2;
- wire rx_f19_src_rdy_int1, rx_f19_dst_rdy_int1, rx_f19_src_rdy_int2, rx_f19_dst_rdy_int2;
-
- rxmac_to_ll8 rx_adapt
- (.clk(rx_clk), .reset(rx_reset), .clear(0),
- .rx_data(rx_data), .rx_valid(rx_valid), .rx_error(rx_error), .rx_ack(rx_ack),
- .ll_data(rx_ll_data), .ll_sof(rx_ll_sof), .ll_eof(rx_ll_eof), .ll_error(), // error also encoded in sof/eof
- .ll_src_rdy(rx_ll_src_rdy), .ll_dst_rdy(rx_ll_dst_rdy));
-
- ll8_to_fifo19 ll8_to_fifo19
- (.clk(rx_clk), .reset(rx_reset), .clear(0),
- .ll_data(rx_ll_data), .ll_sof(rx_ll_sof), .ll_eof(rx_ll_eof),
- .ll_src_rdy(rx_ll_src_rdy), .ll_dst_rdy(rx_ll_dst_rdy),
- .f19_data(rx_f19_data_int1), .f19_src_rdy_o(rx_f19_src_rdy_int1), .f19_dst_rdy_i(rx_f19_dst_rdy_int1));
-
- fifo19_rxrealign fifo19_rxrealign
- (.clk(rx_clk), .reset(rx_reset), .clear(0),
- .datain(rx_f19_data_int1), .src_rdy_i(rx_f19_src_rdy_int1), .dst_rdy_o(rx_f19_dst_rdy_int1),
- .dataout(rx_f19_data_int2), .src_rdy_o(rx_f19_src_rdy_int2), .dst_rdy_i(rx_f19_dst_rdy_int2) );
-
- fifo_2clock_cascade #(.WIDTH(36), .SIZE(RXFIFOSIZE)) rx_2clk_fifo
- (.wclk(rx_clk), .datain(rx_f19_data_int2),
- .src_rdy_i(rx_f19_src_rdy_int2), .dst_rdy_o(rx_f19_dst_rdy_int2), .space(rx_fifo_space),
- .rclk(sys_clk), .dataout(rx_f19_data),
- .src_rdy_o(rx_f19_src_rdy), .dst_rdy_i(rx_f19_dst_rdy), .occupied(), .arst(reset));
-
- // TX FIFO Chain
- wire tx_ll_sof, tx_ll_eof, tx_ll_src_rdy, tx_ll_dst_rdy;
- wire tx_ll_sof2, tx_ll_eof2, tx_ll_src_rdy2, tx_ll_dst_rdy2;
- wire tx_ll_sof2_n, tx_ll_eof2_n, tx_ll_src_rdy2_n, tx_ll_dst_rdy2_n;
- wire [7:0] tx_ll_data, tx_ll_data2;
- wire [18:0] tx_f19_data_int1;
- wire tx_f19_src_rdy_int1, tx_f19_dst_rdy_int1;
-
- fifo_2clock_cascade #(.WIDTH(19), .SIZE(4)) tx_2clk_fifo
- (.wclk(sys_clk), .datain(tx_f19_data),
- .src_rdy_i(tx_f19_src_rdy), .dst_rdy_o(tx_f19_dst_rdy), .space(),
- .rclk(tx_clk), .dataout(tx_f19_data_int1),
- .src_rdy_o(tx_f19_src_rdy_int1), .dst_rdy_i(tx_f19_dst_rdy_int1), .occupied(), .arst(rx_reset));
-
- fifo19_to_ll8 fifo19_to_ll8
- (.clk(tx_clk), .reset(tx_reset), .clear(clear),
- .f19_data(tx_f19_data_int1), .f19_src_rdy_i(tx_f19_src_rdy_int1), .f19_dst_rdy_o(tx_f19_dst_rdy_int1),
- .ll_data(tx_ll_data2), .ll_sof_n(tx_ll_sof2_n), .ll_eof_n(tx_ll_eof2_n),
- .ll_src_rdy_n(tx_ll_src_rdy2_n), .ll_dst_rdy_n(tx_ll_dst_rdy2_n));
-
- assign tx_ll_sof2 = ~tx_ll_sof2_n;
- assign tx_ll_eof2 = ~tx_ll_eof2_n;
- assign tx_ll_src_rdy2 = ~tx_ll_src_rdy2_n;
- assign tx_ll_dst_rdy2_n = ~tx_ll_dst_rdy2;
-
- ll8_shortfifo tx_sfifo
- (.clk(tx_clk), .reset(tx_reset), .clear(clear),
- .datain(tx_ll_data2), .sof_i(tx_ll_sof2), .eof_i(tx_ll_eof2),
- .error_i(0), .src_rdy_i(tx_ll_src_rdy2), .dst_rdy_o(tx_ll_dst_rdy2),
- .dataout(tx_ll_data), .sof_o(tx_ll_sof), .eof_o(tx_ll_eof),
- .error_o(), .src_rdy_o(tx_ll_src_rdy), .dst_rdy_i(tx_ll_dst_rdy));
-
- ll8_to_txmac ll8_to_txmac
- (.clk(tx_clk), .reset(tx_reset), .clear(clear),
- .ll_data(tx_ll_data), .ll_sof(tx_ll_sof), .ll_eof(tx_ll_eof),
- .ll_src_rdy(tx_ll_src_rdy), .ll_dst_rdy(tx_ll_dst_rdy),
- .tx_data(tx_data), .tx_valid(tx_valid), .tx_error(tx_error), .tx_ack(tx_ack));
-
- // Flow Control
- flow_ctrl_rx flow_ctrl_rx
- (.pause_request_en(pause_request_en), .pause_time(pause_time), .pause_thresh(pause_thresh),
- .rx_clk(rx_clk), .rx_reset(rx_reset), .rx_fifo_space(rx_fifo_space),
- .tx_clk(tx_clk), .tx_reset(tx_reset), .pause_req(pause_req), .pause_time_req(pause_time_req));
-
- wire [31:0] debug_tx, debug_rx;
-
- assign debug_tx = { { tx_ll_data },
- { tx_ll_sof, tx_ll_eof, tx_ll_src_rdy, tx_ll_dst_rdy,
- tx_ll_sof2, tx_ll_eof2, tx_ll_src_rdy2, tx_ll_dst_rdy2 },
- { tx_valid, tx_error, tx_ack, tx_f19_src_rdy_int1, tx_f19_dst_rdy_int1, tx_f19_data_int1[18:16]},
- { tx_data} };
- assign debug_rx = { { rx_f19_src_rdy, rx_f19_dst_rdy, debug_state[5:0] },
- { rx_ll_sof, rx_ll_eof, rx_ll_src_rdy, rx_ll_dst_rdy, 4'b0 },
- { rx_valid, rx_error, rx_ack, rx_f19_src_rdy_int1, rx_f19_dst_rdy_int1, rx_f19_data_int1[18:16]},
- { rx_data} };
-
- assign debug = debug_rx;
-
-endmodule // simple_gemac_wrapper19
diff --git a/fpga/usrp2/simple_gemac/simple_gemac_wrapper19_tb.v b/fpga/usrp2/simple_gemac/simple_gemac_wrapper19_tb.v
deleted file mode 100644
index 78f525fd7..000000000
--- a/fpga/usrp2/simple_gemac/simple_gemac_wrapper19_tb.v
+++ /dev/null
@@ -1,226 +0,0 @@
-//
-// Copyright 2011 Ettus Research LLC
-//
-// 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, see <http://www.gnu.org/licenses/>.
-//
-
-
-
-module simple_gemac_wrapper19_tb;
-`include "eth_tasks_f19.v"
-
- reg reset = 1;
- initial #1000 reset = 0;
- wire wb_rst = reset;
-
- reg eth_clk = 0;
- always #50 eth_clk = ~eth_clk;
-
- reg wb_clk = 0;
- always #173 wb_clk = ~wb_clk;
-
- reg sys_clk = 0;
- always #77 sys_clk = ~ sys_clk;
-
- wire GMII_RX_DV, GMII_RX_ER, GMII_TX_EN, GMII_TX_ER, GMII_GTX_CLK;
- wire [7:0] GMII_RXD, GMII_TXD;
-
- wire rx_valid, rx_error, rx_ack;
- wire tx_ack, tx_valid, tx_error;
-
- wire [7:0] rx_data, tx_data;
-
- reg [15:0] pause_time;
- reg pause_req = 0;
-
- wire GMII_RX_CLK = GMII_GTX_CLK;
-
- reg [7:0] FORCE_DAT_ERR = 0;
- reg FORCE_ERR = 0;
-
- // Loopback
- assign GMII_RX_DV = GMII_TX_EN;
- assign GMII_RX_ER = GMII_TX_ER | FORCE_ERR;
- assign GMII_RXD = GMII_TXD ^ FORCE_DAT_ERR;
-
-
- wire [31:0] wb_dat_o;
- reg [31:0] wb_dat_i;
- reg [7:0] wb_adr;
- reg wb_stb=0, wb_cyc=0, wb_we=0;
- wire wb_ack;
-
- reg [19:0] tx_f19_data=0;
- reg tx_f19_src_rdy = 0;
- wire tx_f19_dst_rdy;
- wire [35:0] rx_f19_data;
- wire rx_f19_src_rdy;
- wire rx_f19_dst_rdy = 1;
-
- simple_gemac_wrapper19 simple_gemac_wrapper19
- (.clk125(eth_clk), .reset(reset),
- .GMII_GTX_CLK(GMII_GTX_CLK), .GMII_TX_EN(GMII_TX_EN),
- .GMII_TX_ER(GMII_TX_ER), .GMII_TXD(GMII_TXD),
- .GMII_RX_CLK(GMII_RX_CLK), .GMII_RX_DV(GMII_RX_DV),
- .GMII_RX_ER(GMII_RX_ER), .GMII_RXD(GMII_RXD),
- //.pause_req(pause_req), .pause_time(pause_time),
-
- .sys_clk(sys_clk), .rx_f19_data(rx_f19_data), .rx_f19_src_rdy(rx_f19_src_rdy), .rx_f19_dst_rdy(rx_f19_dst_rdy),
- .tx_f19_data(tx_f19_data), .tx_f19_src_rdy(tx_f19_src_rdy), .tx_f19_dst_rdy(tx_f19_dst_rdy),
-
- .wb_clk(wb_clk), .wb_rst(wb_rst), .wb_stb(wb_stb), .wb_cyc(wb_cyc), .wb_ack(wb_ack), .wb_we(wb_we),
- .wb_adr(wb_adr), .wb_dat_i(wb_dat_i), .wb_dat_o(wb_dat_o),
-
- .mdio(), .mdc(),
- .debug() );
-
- initial $dumpfile("simple_gemac_wrapper19_tb.vcd");
- initial $dumpvars(0,simple_gemac_wrapper19_tb);
-
- integer i;
- reg [7:0] pkt_rom[0:65535];
- reg [1023:0] ROMFile;
-
- initial
- for (i=0;i<65536;i=i+1)
- pkt_rom[i] <= 8'h0;
-
- initial
- begin
- @(negedge reset);
- repeat (10)
- @(posedge wb_clk);
- WishboneWR(0,6'b111101);
- WishboneWR(4,16'hA0B0);
- WishboneWR(8,32'hC0D0_A1B1);
- WishboneWR(12,16'h0000);
- WishboneWR(16,32'h0000_0000);
-
- @(posedge eth_clk);
- SendFlowCtrl(16'h0007); // Send flow control
- @(posedge eth_clk);
- #30000;
- @(posedge eth_clk);
- SendFlowCtrl(16'h0009); // Increase flow control before it expires
- #10000;
- @(posedge eth_clk);
- SendFlowCtrl(16'h0000); // Cancel flow control before it expires
- @(posedge eth_clk);
-
- repeat (1000)
- @(posedge sys_clk);
- SendPacket_to_fifo19(32'hA0B0C0D0,10); // This packet gets dropped by the filters
- repeat (1000)
- @(posedge sys_clk);
-
- SendPacket_to_fifo19(32'hAABBCCDD,100); // This packet gets dropped by the filters
- repeat (10)
- @(posedge sys_clk);
-/*
- SendPacketFromFile_f36(60,0,0); // The rest are valid packets
- repeat (10)
- @(posedge clk);
-
- SendPacketFromFile_f36(61,0,0);
- repeat (10)
- @(posedge clk);
- SendPacketFromFile_f36(62,0,0);
- repeat (10)
- @(posedge clk);
- SendPacketFromFile_f36(63,0,0);
- repeat (1)
- @(posedge clk);
- SendPacketFromFile_f36(64,0,0);
- repeat (10)
- @(posedge clk);
- SendPacketFromFile_f36(59,0,0);
- repeat (1)
- @(posedge clk);
- SendPacketFromFile_f36(58,0,0);
- repeat (1)
- @(posedge clk);
- SendPacketFromFile_f36(100,0,0);
- repeat (1)
- @(posedge clk);
- SendPacketFromFile_f36(200,150,30); // waiting 14 empties the fifo, 15 underruns
- repeat (1)
- @(posedge clk);
- SendPacketFromFile_f36(100,0,30);
- */
- #100000 $finish;
- end
-
- // Force a CRC error
- initial
- begin
- #90000;
- @(posedge eth_clk);
- FORCE_DAT_ERR <= 8'h10;
- @(posedge eth_clk);
- FORCE_DAT_ERR <= 8'h00;
- end
-
- // Force an RX_ER error (i.e. link loss)
- initial
- begin
- #116000;
- @(posedge eth_clk);
- FORCE_ERR <= 1;
- @(posedge eth_clk);
- FORCE_ERR <= 0;
- end
-/*
- // Cause receive fifo to fill, causing an RX overrun
- initial
- begin
- #126000;
- @(posedge clk);
- rx_ll_dst_rdy2 <= 0;
- repeat (30) // Repeat of 14 fills the shortfifo, but works. 15 overflows
- @(posedge clk);
- rx_ll_dst_rdy2 <= 1;
- end
- */
- // Tests: Send and recv flow control, send and receive good packets, RX CRC err, RX_ER, RX overrun, TX underrun
- // Still need to test: CRC errors on Pause Frames, MDIO, wishbone
-
- task WishboneWR;
- input [7:0] adr;
- input [31:0] value;
- begin
- wb_adr <= adr;
- wb_dat_i <= value;
- wb_stb <= 1;
- wb_cyc <= 1;
- wb_we <= 1;
- while (~wb_ack)
- @(posedge wb_clk);
- @(posedge wb_clk);
- wb_stb <= 0;
- wb_cyc <= 0;
- wb_we <= 0;
- end
- endtask // WishboneWR
- /*
- always @(posedge clk)
- if(rx_ll_src_rdy2 & rx_ll_dst_rdy2)
- begin
- if(rx_ll_sof2 & ~rx_ll_eof2)
- $display("RX-PKT-START %d",$time);
- $display("RX-PKT SOF %d EOF %d ERR%d DAT %x",rx_ll_sof2,rx_ll_eof2,rx_ll_error2,rx_ll_data2);
- if(rx_ll_eof2 & ~rx_ll_sof2)
- $display("RX-PKT-END %d",$time);
- end
- */
-endmodule // simple_gemac_wrapper19_tb
diff --git a/fpga/usrp2/timing/time_64bit.v b/fpga/usrp2/timing/time_64bit.v
index d32f4220b..03df07108 100644
--- a/fpga/usrp2/timing/time_64bit.v
+++ b/fpga/usrp2/timing/time_64bit.v
@@ -23,10 +23,11 @@ module time_64bit
(input clk, input rst,
input set_stb, input [7:0] set_addr, input [31:0] set_data,
input pps,
- output [63:0] vita_time,
+ output reg [63:0] vita_time,
output reg [63:0] vita_time_pps,
output pps_int,
input exp_time_in, output exp_time_out,
+ output reg good_sync,
output [31:0] debug
);
@@ -39,7 +40,10 @@ module time_64bit
reg [31:0] seconds, ticks;
wire end_of_second;
- assign vita_time = {seconds,ticks};
+
+ always @(posedge clk)
+ vita_time <= {seconds,ticks};
+
wire [63:0] vita_time_rcvd;
wire [31:0] next_ticks_preset, next_seconds_preset;
@@ -164,5 +168,11 @@ module time_64bit
assign debug = { { 24'b0} ,
{ 2'b0, exp_time_in, exp_time_out, mimo_sync, mimo_sync_now, sync_rcvd, send_sync} };
+
+ always @(posedge clk)
+ if(rst)
+ good_sync <= 0;
+ else if(sync_rcvd)
+ good_sync <= 1;
endmodule // time_64bit
diff --git a/fpga/usrp2/top/N2x0/u2plus_core.v b/fpga/usrp2/top/N2x0/u2plus_core.v
index e2142ad06..f01306f97 100644
--- a/fpga/usrp2/top/N2x0/u2plus_core.v
+++ b/fpga/usrp2/top/N2x0/u2plus_core.v
@@ -187,7 +187,6 @@ module u2plus_core
wire [3:0] uart_tx_int, uart_rx_int;
wire [31:0] debug_gpio_0, debug_gpio_1;
- wire [31:0] atr_lines;
wire [31:0] debug_rx, debug_mac, debug_mac0, debug_mac1, debug_tx_dsp, debug_txc,
debug_serdes0, debug_serdes1, debug_serdes2, debug_rx_dsp, debug_udp, debug_extfifo, debug_extfifo2;
@@ -196,7 +195,7 @@ module u2plus_core
wire ser_rx_full, ser_tx_full, dsp_rx_full, dsp_tx_full, eth_rx_full, eth_tx_full, eth_rx_full2;
wire ser_rx_empty, ser_tx_empty, dsp_rx_empty, dsp_tx_empty, eth_rx_empty, eth_tx_empty, eth_rx_empty2;
- wire serdes_link_up;
+ wire serdes_link_up, good_sync;
wire epoch;
wire [31:0] irq;
wire [63:0] vita_time, vita_time_pps;
@@ -418,17 +417,17 @@ module u2plus_core
// /////////////////////////////////////////////////////////////////////////
// GPIOs -- Slave #4
+
nsgpio nsgpio(.clk_i(wb_clk),.rst_i(wb_rst),
- .cyc_i(s4_cyc),.stb_i(s4_stb),.adr_i(s4_adr[3:0]),.we_i(s4_we),
+ .cyc_i(s4_cyc),.stb_i(s4_stb),.adr_i(s4_adr[4:0]),.we_i(s4_we),
.dat_i(s4_dat_o),.dat_o(s4_dat_i),.ack_o(s4_ack),
- .atr(atr_lines),.debug_0(debug_gpio_0),.debug_1(debug_gpio_1),
- .gpio({io_tx,io_rx}) );
+ .rx(run_rx0_d1 | rx_rx1_d1), .tx(run_tx), .gpio({io_tx,io_rx}) );
// /////////////////////////////////////////////////////////////////////////
// Buffer Pool Status -- Slave #5
//compatibility number -> increment when the fpga has been sufficiently altered
- localparam compat_num = {16'd7, 16'd0}; //major, minor
+ localparam compat_num = {16'd7, 16'd1}; //major, minor
wb_readback_mux buff_pool_status
(.wb_clk_i(wb_clk), .wb_rst_i(wb_rst), .wb_stb_i(s5_stb),
@@ -436,7 +435,7 @@ module u2plus_core
.word00(32'b0),.word01(32'b0),.word02(32'b0),.word03(32'b0),
.word04(32'b0),.word05(32'b0),.word06(32'b0),.word07(32'b0),
- .word08(status),.word09({sim_mode,27'b0,clock_divider[3:0]}),.word10(vita_time[63:32]),
+ .word08(status),.word09(32'b0),.word10(vita_time[63:32]),
.word11(vita_time[31:0]),.word12(compat_num),.word13(irq),
.word14(vita_time_pps[63:32]),.word15(vita_time_pps[31:0])
);
@@ -499,7 +498,7 @@ module u2plus_core
// In Rev3 there are only 6 leds, and the highest one is on the ETH connector
wire [7:0] led_src, led_sw;
- wire [7:0] led_hw = {run_tx, (run_rx0_d1 | run_rx1_d1), clk_status, serdes_link_up, 1'b0};
+ wire [7:0] led_hw = {run_tx, (run_rx0_d1 | run_rx1_d1), clk_status, serdes_link_up & good_sync, 1'b0};
setting_reg #(.my_addr(SR_MISC+3),.width(8)) sr_led (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
.in(set_data),.out(led_sw),.changed());
@@ -536,12 +535,12 @@ module u2plus_core
// /////////////////////////////////////////////////////////////////////////
// Simple Timer interrupts
-
+ /*
simple_timer #(.BASE(SR_SIMTIMER)) simple_timer
(.clk(wb_clk), .reset(wb_rst),
.set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
.onetime_int(onetime_int), .periodic_int(periodic_int));
-
+ */
// /////////////////////////////////////////////////////////////////////////
// UART, Slave #10
@@ -555,11 +554,13 @@ module u2plus_core
// /////////////////////////////////////////////////////////////////////////
// ATR Controller, Slave #11
+ /*
atr_controller atr_controller
(.clk_i(wb_clk),.rst_i(wb_rst),
.adr_i(sb_adr[5:0]),.sel_i(sb_sel),.dat_i(sb_dat_o),.dat_o(sb_dat_i),
.we_i(sb_we),.stb_i(sb_stb),.cyc_i(sb_cyc),.ack_o(sb_ack),
.run_rx(run_rx0_d1 | run_rx1_d1),.run_tx(run_tx),.ctrl_lines(atr_lines) );
+ */
// //////////////////////////////////////////////////////////////////////////
// Time Sync, Slave #12
@@ -730,8 +731,7 @@ module u2plus_core
time_64bit #(.TICKS_PER_SEC(32'd100000000),.BASE(SR_TIME64)) time_64bit
(.clk(dsp_clk), .rst(dsp_rst), .set_stb(set_stb_dsp), .set_addr(set_addr_dsp), .set_data(set_data_dsp),
.pps(pps_in), .vita_time(vita_time), .vita_time_pps(vita_time_pps), .pps_int(pps_int),
- .exp_time_in(exp_time_in), .exp_time_out(exp_time_out),
- .debug(debug_sync));
+ .exp_time_in(exp_time_in), .exp_time_out(exp_time_out), .good_sync(good_sync), .debug(debug_sync));
// /////////////////////////////////////////////////////////////////////////////////////////
// Debug Pins
diff --git a/fpga/usrp2/top/USRP2/u2_core.v b/fpga/usrp2/top/USRP2/u2_core.v
index 2e3d41731..ee1116eac 100644
--- a/fpga/usrp2/top/USRP2/u2_core.v
+++ b/fpga/usrp2/top/USRP2/u2_core.v
@@ -193,7 +193,6 @@ module u2_core
wire uart_tx_int, uart_rx_int;
wire [31:0] debug_gpio_0, debug_gpio_1;
- wire [31:0] atr_lines;
wire [31:0] debug_rx, debug_mac, debug_mac0, debug_mac1, debug_tx_dsp, debug_txc,
debug_serdes0, debug_serdes1, debug_serdes2, debug_rx_dsp, debug_udp, debug_extfifo, debug_extfifo2;
@@ -202,7 +201,7 @@ module u2_core
wire ser_rx_full, ser_tx_full, dsp_rx_full, dsp_tx_full, eth_rx_full, eth_tx_full, eth_rx_full2;
wire ser_rx_empty, ser_tx_empty, dsp_rx_empty, dsp_tx_empty, eth_rx_empty, eth_tx_empty, eth_rx_empty2;
- wire serdes_link_up;
+ wire serdes_link_up, good_sync;
wire epoch;
wire [31:0] irq;
wire [63:0] vita_time, vita_time_pps;
@@ -423,17 +422,17 @@ module u2_core
// /////////////////////////////////////////////////////////////////////////
// GPIOs -- Slave #4
+
nsgpio nsgpio(.clk_i(wb_clk),.rst_i(wb_rst),
- .cyc_i(s4_cyc),.stb_i(s4_stb),.adr_i(s4_adr[3:0]),.we_i(s4_we),
+ .cyc_i(s4_cyc),.stb_i(s4_stb),.adr_i(s4_adr[4:0]),.we_i(s4_we),
.dat_i(s4_dat_o),.dat_o(s4_dat_i),.ack_o(s4_ack),
- .atr(atr_lines),.debug_0(debug_gpio_0),.debug_1(debug_gpio_1),
- .gpio({io_tx,io_rx}) );
+ .rx(run_rx0_d1 | rx_rx1_d1), .tx(run_tx), .gpio({io_tx,io_rx}) );
// /////////////////////////////////////////////////////////////////////////
// Buffer Pool Status -- Slave #5
//compatibility number -> increment when the fpga has been sufficiently altered
- localparam compat_num = {16'd7, 16'd0}; //major, minor
+ localparam compat_num = {16'd7, 16'd1}; //major, minor
wb_readback_mux buff_pool_status
(.wb_clk_i(wb_clk), .wb_rst_i(wb_rst), .wb_stb_i(s5_stb),
@@ -441,7 +440,7 @@ module u2_core
.word00(32'b0),.word01(32'b0),.word02(32'b0),.word03(32'b0),
.word04(32'b0),.word05(32'b0),.word06(32'b0),.word07(32'b0),
- .word08(status),.word09({sim_mode,27'b0,clock_divider[3:0]}),.word10(vita_time[63:32]),
+ .word08(status),.word09(32'b0),.word10(vita_time[63:32]),
.word11(vita_time[31:0]),.word12(compat_num),.word13(irq),
.word14(vita_time_pps[63:32]),.word15(vita_time_pps[31:0])
);
@@ -502,7 +501,7 @@ module u2_core
// In Rev3 there are only 6 leds, and the highest one is on the ETH connector
wire [7:0] led_src, led_sw;
- wire [7:0] led_hw = {run_tx, (run_rx0_d1 | run_rx1_d1), clk_status, serdes_link_up, 1'b0};
+ wire [7:0] led_hw = {run_tx, (run_rx0_d1 | run_rx1_d1), clk_status, serdes_link_up & good_sync, 1'b0};
setting_reg #(.my_addr(SR_MISC+3),.width(8)) sr_led (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
.in(set_data),.out(led_sw),.changed());
@@ -524,7 +523,7 @@ module u2_core
assign irq= {{8'b0},
{8'b0},
- {3'b0, periodic_int, clk_status, serdes_link_up, uart_tx_int, uart_rx_int},
+ {2'b0, good_sync, periodic_int, clk_status, serdes_link_up, uart_tx_int, uart_rx_int},
{pps_wb,overrun_wb,underrun_wb,PHY_INTn,i2c_int,spi_int,onetime_int,buffer_int}};
pic pic(.clk_i(wb_clk),.rst_i(wb_rst),.cyc_i(s8_cyc),.stb_i(s8_stb),.adr_i(s8_adr[4:2]),
@@ -539,12 +538,12 @@ module u2_core
// /////////////////////////////////////////////////////////////////////////
// Simple Timer interrupts
-
+ /*
simple_timer #(.BASE(SR_SIMTIMER)) simple_timer
(.clk(wb_clk), .reset(wb_rst),
.set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
.onetime_int(onetime_int), .periodic_int(periodic_int));
-
+ */
// /////////////////////////////////////////////////////////////////////////
// UART, Slave #10
@@ -558,11 +557,13 @@ module u2_core
// /////////////////////////////////////////////////////////////////////////
// ATR Controller, Slave #11
+ /*
atr_controller atr_controller
(.clk_i(wb_clk),.rst_i(wb_rst),
.adr_i(sb_adr[5:0]),.sel_i(sb_sel),.dat_i(sb_dat_o),.dat_o(sb_dat_i),
.we_i(sb_we),.stb_i(sb_stb),.cyc_i(sb_cyc),.ack_o(sb_ack),
.run_rx(run_rx0_d1 | run_rx1_d1),.run_tx(run_tx),.ctrl_lines(atr_lines) );
+ */
// //////////////////////////////////////////////////////////////////////////
// Time Sync, Slave #12
@@ -572,16 +573,16 @@ module u2_core
// /////////////////////////////////////////////////////////////////////////
// SD Card Reader / Writer, Slave #13
-
+ /*
sd_spi_wb sd_spi_wb
(.clk(wb_clk),.rst(wb_rst),
.sd_clk(sd_clk),.sd_csn(sd_csn),.sd_mosi(sd_mosi),.sd_miso(sd_miso),
.wb_cyc_i(sd_cyc),.wb_stb_i(sd_stb),.wb_we_i(sd_we),
.wb_adr_i(sd_adr[3:2]),.wb_dat_i(sd_dat_o[7:0]),.wb_dat_o(sd_dat_i[7:0]),
.wb_ack_o(sd_ack) );
-
+
assign sd_dat_i[31:8] = 0;
-
+ */
// /////////////////////////////////////////////////////////////////////////
// ADC Frontend
wire [23:0] adc_i, adc_q;
@@ -729,8 +730,7 @@ module u2_core
time_64bit #(.TICKS_PER_SEC(32'd100000000),.BASE(SR_TIME64)) time_64bit
(.clk(dsp_clk), .rst(dsp_rst), .set_stb(set_stb_dsp), .set_addr(set_addr_dsp), .set_data(set_data_dsp),
.pps(pps_in), .vita_time(vita_time), .vita_time_pps(vita_time_pps), .pps_int(pps_int),
- .exp_time_in(exp_time_in), .exp_time_out(exp_time_out),
- .debug(debug_sync));
+ .exp_time_in(exp_time_in), .exp_time_out(exp_time_out), .good_sync(good_sync), .debug(debug_sync));
// /////////////////////////////////////////////////////////////////////////////////////////
// Debug Pins
diff --git a/fpga/usrp2/vrt/vita_rx_control.v b/fpga/usrp2/vrt/vita_rx_control.v
index 39f32d7fe..daec734a8 100644
--- a/fpga/usrp2/vrt/vita_rx_control.v
+++ b/fpga/usrp2/vrt/vita_rx_control.v
@@ -46,13 +46,13 @@ module vita_rx_control
wire [63:0] rcvtime_pre;
reg [63:0] rcvtime;
- wire [28:0] numlines_pre;
- wire send_imm_pre, chain_pre, reload_pre;
+ wire [27:0] numlines_pre;
+ wire send_imm_pre, chain_pre, reload_pre, stop_pre;
reg send_imm, chain, reload;
wire read_ctrl, not_empty_ctrl, write_ctrl;
reg sc_pre2;
wire [33:0] fifo_line;
- reg [28:0] lines_left, lines_total;
+ reg [27:0] lines_left, lines_total;
reg [2:0] ibs_state;
wire now, early, late;
wire sample_fifo_in_rdy;
@@ -83,7 +83,7 @@ module vita_rx_control
fifo_short #(.WIDTH(96)) commandfifo
(.clk(clk),.reset(reset),.clear(clear),
.datain({new_command,new_time}), .src_rdy_i(write_ctrl), .dst_rdy_o(),
- .dataout({send_imm_pre,chain_pre,reload_pre,numlines_pre,rcvtime_pre}),
+ .dataout({send_imm_pre,chain_pre,reload_pre,stop_pre,numlines_pre,rcvtime_pre}),
.src_rdy_o(not_empty_ctrl), .dst_rdy_i(read_ctrl),
.occupied(command_queue_len), .space() );
@@ -97,7 +97,7 @@ module vita_rx_control
localparam IBS_LATECMD = 6;
localparam IBS_ZEROLEN = 7;
- wire signal_cmd_done = (lines_left == 1) & (~chain | (not_empty_ctrl & (numlines_pre==0)));
+ wire signal_cmd_done = (lines_left == 1) & (~chain | (not_empty_ctrl & stop_pre));
wire signal_overrun = (ibs_state == IBS_OVERRUN);
wire signal_brokenchain = (ibs_state == IBS_BROKENCHAIN);
wire signal_latecmd = (ibs_state == IBS_LATECMD);
@@ -121,10 +121,19 @@ module vita_rx_control
time_compare
time_compare (.time_now(vita_time), .trigger_time(rcvtime), .now(now), .early(early), .late(late));
- wire too_late = late & ~send_imm;
wire go_now = now | send_imm;
wire full = ~sample_fifo_in_rdy;
+ reg too_late;
+
+ always @(posedge clk)
+ if(reset | clear)
+ too_late <= 0;
+ else
+ too_late <= late & ~send_imm;
+
+ reg late_valid;
+
always @(posedge clk)
if(reset | clear)
begin
@@ -135,6 +144,7 @@ module vita_rx_control
send_imm <= 0;
chain <= 0;
reload <= 0;
+ late_valid <= 0;
end
else
case(ibs_state)
@@ -144,7 +154,8 @@ module vita_rx_control
lines_left <= numlines_pre;
lines_total <= numlines_pre;
rcvtime <= rcvtime_pre;
- if(numlines_pre == 0)
+ late_valid <= 0;
+ if(stop_pre)
ibs_state <= IBS_ZEROLEN;
else
ibs_state <= IBS_WAITING;
@@ -153,10 +164,14 @@ module vita_rx_control
reload <= reload_pre;
end
IBS_WAITING :
- if(go_now)
- ibs_state <= IBS_RUNNING;
- else if(too_late)
- ibs_state <= IBS_LATECMD;
+ begin
+ late_valid <= 1;
+ if(late_valid)
+ if(go_now)
+ ibs_state <= IBS_RUNNING;
+ else if(too_late)
+ ibs_state <= IBS_LATECMD;
+ end
IBS_RUNNING :
if(strobe)
if(full)
@@ -182,7 +197,7 @@ module vita_rx_control
send_imm <= send_imm_pre;
chain <= chain_pre;
reload <= reload_pre;
- if(numlines_pre == 0) // If we are told to stop here
+ if(stop_pre) // If we are told to stop here
ibs_state <= IBS_IDLE;
else
ibs_state <= IBS_RUNNING;
generated by cgit v1.2.3 (git 2.46.0) at 2025-10-31 05:37:59 +0000