hook up sampled pps in u2plus, remove unused priority encoder, minor cleanups

2 files changed, 18 insertions, 26 deletions

diff --git a/usrp2/top/u2_rev3/u2_core.v b/usrp2/top/u2_rev3/u2_core.v
index 0b56636c8..9f03985b8 100644
--- a/usrp2/top/u2_rev3/u2_core.v
+++ b/usrp2/top/u2_rev3/u2_core.v
@@ -197,14 +197,14 @@ module u2_core
    wire [dw-1:0] s0_dat_o, s1_dat_o, s0_dat_i, s1_dat_i, s2_dat_o, s3_dat_o, s2_dat_i, s3_dat_i,
 		 s4_dat_o, s5_dat_o, s4_dat_i, s5_dat_i, s6_dat_o, s7_dat_o, s6_dat_i, s7_dat_i,
 		 s8_dat_o, s9_dat_o, s8_dat_i, s9_dat_i, sa_dat_o, sa_dat_i, sb_dat_i, sb_dat_o,
-		 sc_dat_i, sc_dat_o, sd_dat_i, sd_dat_o, se_dat_i, se_dat_o;
-   wire [aw-1:0] m0_adr,s0_adr,s1_adr,s2_adr,s3_adr,s4_adr,s5_adr,s6_adr,s7_adr,s8_adr,s9_adr,sa_adr,sb_adr,sc_adr, sd_adr, se_adr;
-   wire [sw-1:0] m0_sel,s0_sel,s1_sel,s2_sel,s3_sel,s4_sel,s5_sel,s6_sel,s7_sel,s8_sel,s9_sel,sa_sel,sb_sel,sc_sel, sd_sel, se_sel;
-   wire 	 m0_ack,s0_ack,s1_ack,s2_ack,s3_ack,s4_ack,s5_ack,s6_ack,s7_ack,s8_ack,s9_ack,sa_ack,sb_ack,sc_ack, sd_ack, se_ack;
-   wire 	 m0_stb,s0_stb,s1_stb,s2_stb,s3_stb,s4_stb,s5_stb,s6_stb,s7_stb,s8_stb,s9_stb,sa_stb,sb_stb,sc_stb, sd_stb, se_stb;
-   wire 	 m0_cyc,s0_cyc,s1_cyc,s2_cyc,s3_cyc,s4_cyc,s5_cyc,s6_cyc,s7_cyc,s8_cyc,s9_cyc,sa_cyc,sb_cyc,sc_cyc, sd_cyc, se_cyc;
+		 sc_dat_i, sc_dat_o, sd_dat_i, sd_dat_o, se_dat_i, se_dat_o, sf_dat_i, sf_dat_o;
+   wire [aw-1:0] m0_adr,s0_adr,s1_adr,s2_adr,s3_adr,s4_adr,s5_adr,s6_adr,s7_adr,s8_adr,s9_adr,sa_adr,sb_adr,sc_adr, sd_adr, se_adr, sf_adr;
+   wire [sw-1:0] m0_sel,s0_sel,s1_sel,s2_sel,s3_sel,s4_sel,s5_sel,s6_sel,s7_sel,s8_sel,s9_sel,sa_sel,sb_sel,sc_sel, sd_sel, se_sel, sf_sel;
+   wire 	 m0_ack,s0_ack,s1_ack,s2_ack,s3_ack,s4_ack,s5_ack,s6_ack,s7_ack,s8_ack,s9_ack,sa_ack,sb_ack,sc_ack, sd_ack, se_ack, sf_ack;
+   wire 	 m0_stb,s0_stb,s1_stb,s2_stb,s3_stb,s4_stb,s5_stb,s6_stb,s7_stb,s8_stb,s9_stb,sa_stb,sb_stb,sc_stb, sd_stb, se_stb, sf_stb;
+   wire 	 m0_cyc,s0_cyc,s1_cyc,s2_cyc,s3_cyc,s4_cyc,s5_cyc,s6_cyc,s7_cyc,s8_cyc,s9_cyc,sa_cyc,sb_cyc,sc_cyc, sd_cyc, se_cyc, sf_cyc;
    wire 	 m0_err, m0_rty;
-   wire 	 m0_we,s0_we,s1_we,s2_we,s3_we,s4_we,s5_we,s6_we,s7_we,s8_we,s9_we,sa_we,sb_we,sc_we,sd_we, se_we;
+   wire 	 m0_we,s0_we,s1_we,s2_we,s3_we,s4_we,s5_we,s6_we,s7_we,s8_we,s9_we,sa_we,sb_we,sc_we,sd_we,se_we,sf_we;
    
    wb_1master #(.decode_w(6),
 		.s0_addr(6'b0000_00),.s0_mask(6'b100000),
@@ -257,8 +257,9 @@ module u2_core
       .sd_dat_i(sd_dat_i),.sd_ack_i(sd_ack),.sd_err_i(0),.sd_rty_i(0),
       .se_dat_o(se_dat_o),.se_adr_o(se_adr),.se_sel_o(se_sel),.se_we_o(se_we),.se_cyc_o(se_cyc),.se_stb_o(se_stb),
       .se_dat_i(se_dat_i),.se_ack_i(se_ack),.se_err_i(0),.se_rty_i(0),
-      .sf_dat_i(0),.sf_ack_i(0),.sf_err_i(0),.sf_rty_i(0)  );
-   
+      .sf_dat_o(sf_dat_o),.sf_adr_o(sf_adr),.sf_sel_o(sf_sel),.sf_we_o(sf_we),.sf_cyc_o(sf_cyc),.sf_stb_o(sf_stb),
+      .sf_dat_i(sf_dat_i),.sf_ack_i(sf_ack),.sf_err_i(0),.sf_rty_i(0));
+      
    //////////////////////////////////////////////////////////////////////////////////////////
    // Reset Controller
    system_control sysctrl (.wb_clk_i(wb_clk), // .por_i(por),
@@ -384,9 +385,6 @@ module u2_core
       .rd3_data_o(rd3_dat), .rd3_flags_o(rd3_flags), .rd3_ready_i(rd3_ready_i), .rd3_ready_o(rd3_ready_o)
       );
 
-   wire [31:0] 	 status_enc;
-   priority_enc priority_enc (.in({16'b0,status[15:0]}), .out(status_enc));
-   
    // /////////////////////////////////////////////////////////////////////////
    // SPI -- Slave #2
    spi_top shared_spi
diff --git a/usrp2/top/u2plus/u2plus_core.v b/usrp2/top/u2plus/u2plus_core.v
index 4e0b190ef..4ed78d770 100644
--- a/usrp2/top/u2plus/u2plus_core.v
+++ b/usrp2/top/u2plus/u2plus_core.v
@@ -173,7 +173,7 @@ module u2plus_core
    wire 	serdes_link_up;
    wire 	epoch;
    wire [31:0] 	irq;
-   wire [63:0] 	vita_time;
+   wire [63:0] 	vita_time, vita_time_pps;
    wire 	run_rx, run_tx;
    
    // ///////////////////////////////////////////////////////////////////////////////////////////////
@@ -335,9 +335,6 @@ module u2plus_core
       .rd3_data_o(rd3_dat), .rd3_flags_o(rd3_flags), .rd3_ready_i(rd3_ready_i), .rd3_ready_o(rd3_ready_o)
       );
 
-   wire [31:0] 	 status_enc;
-   priority_enc priority_enc (.in({16'b0,status[15:0]}), .out(status_enc));
-   
    // /////////////////////////////////////////////////////////////////////////
    // SPI -- Slave #2
    spi_top shared_spi
@@ -370,13 +367,6 @@ module u2plus_core
    // /////////////////////////////////////////////////////////////////////////
    // Buffer Pool Status -- Slave #5   
    
-   reg [31:0] 	 cycle_count;
-   always @(posedge wb_clk)
-     if(wb_rst)
-       cycle_count <= 0;
-     else
-       cycle_count <= cycle_count + 1;
-
    //compatibility number -> increment when the fpga has been sufficiently altered
    localparam compat_num = 32'd3;
 
@@ -387,7 +377,8 @@ module u2plus_core
       .word00(status_b0),.word01(status_b1),.word02(status_b2),.word03(status_b3),
       .word04(status_b4),.word05(status_b5),.word06(status_b6),.word07(status_b7),
       .word08(status),.word09({sim_mode,27'b0,clock_divider[3:0]}),.word10(vita_time[63:32]),
-      .word11(vita_time[31:0]),.word12(compat_num),.word13(irq),.word14(status_enc),.word15(cycle_count)
+      .word11(vita_time[31:0]),.word12(compat_num),.word13(irq),
+      .word14(vita_time_pps[63:32]),.word15(vita_time_pps[31:0])
       );
 
    // /////////////////////////////////////////////////////////////////////////
@@ -681,10 +672,13 @@ module u2plus_core
    // /////////////////////////////////////////////////////////////////////////
    // VITA Timing
 
+   wire [31:0] 	 debug_sync;
+   
    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), .pps_int(pps_int),
-      .exp_time_in(exp_time_in), .exp_time_out(exp_time_out));
+      .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));
    
    // /////////////////////////////////////////////////////////////////////////////////////////
    // Debug Pins