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-rw-r--r--usrp2/top/u2_rev3/u2_core_udp.v23
-rw-r--r--usrp2/vrt/gen_context_pkt.v7
-rw-r--r--usrp2/vrt/vita_tx_chain.v8
-rw-r--r--usrp2/vrt/vita_tx_control.v9
-rw-r--r--usrp2/vrt/vita_tx_deframer.v2
5 files changed, 25 insertions, 24 deletions
diff --git a/usrp2/top/u2_rev3/u2_core_udp.v b/usrp2/top/u2_rev3/u2_core_udp.v
index ec973df8d..3c31d33a9 100644
--- a/usrp2/top/u2_rev3/u2_core_udp.v
+++ b/usrp2/top/u2_rev3/u2_core_udp.v
@@ -162,6 +162,7 @@ module u2_core
wire ram_loader_done;
wire ram_loader_rst, wb_rst, dsp_rst;
+ assign dsp_rst = wb_rst;
wire [31:0] status, status_b0, status_b1, status_b2, status_b3, status_b4, status_b5, status_b6, status_b7;
wire bus_error, spi_int, i2c_int, pps_int, onetime_int, periodic_int, buffer_int;
@@ -660,14 +661,17 @@ module u2_core
wire [35:0] tx_data;
wire tx_src_rdy, tx_dst_rdy;
wire [31:0] debug_vt;
+ wire clear_tx;
+ setting_reg #(.my_addr(SR_TX_CTRL+1)) sr_clear_tx
+ (.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr),
+ .in(set_data),.out(),.changed(clear_tx));
+
ext_fifo #(.EXT_WIDTH(18),.INT_WIDTH(36),.RAM_DEPTH(19),.FIFO_DEPTH(19))
ext_fifo_i1
- (
- .int_clk(dsp_clk),
+ (.int_clk(dsp_clk),
.ext_clk(clk_to_mac),
-// .ext_clk(wb_clk),
- .rst(dsp_rst),
+ .rst(dsp_rst | clear_tx),
.RAM_D_pi(RAM_D_pi),
.RAM_D_po(RAM_D_po),
.RAM_D_poe(RAM_D_poe),
@@ -679,15 +683,14 @@ module u2_core
.RAM_CE1n(RAM_CE1n),
// .datain({rd1_flags,rd1_dat}),
.datain({rd1_flags[3:2],rd1_dat[31:16],rd1_flags[1:0],rd1_dat[15:0]}),
- .src_rdy_i(rd1_ready_o), // WRITE
- .dst_rdy_o(rd1_ready_i), // not FULL
+ .src_rdy_i(rd1_ready_o),
+ .dst_rdy_o(rd1_ready_i),
// .dataout(tx_data),
.dataout({tx_data[35:34],tx_data[31:16],tx_data[33:32],tx_data[15:0]}),
- .src_rdy_o(tx_src_rdy), // not EMPTY
+ .src_rdy_o(tx_src_rdy),
.dst_rdy_i(tx_dst_rdy),
.debug(debug_extfifo),
- .debug2(debug_extfifo2)
- );
+ .debug2(debug_extfifo2) );
vita_tx_chain #(.BASE_CTRL(SR_TX_CTRL), .BASE_DSP(SR_TX_DSP),
.REPORT_ERROR(1), .DO_FLOW_CONTROL(1),
@@ -702,8 +705,6 @@ module u2_core
.underrun(underrun), .run(run_tx),
.debug(debug_vt));
- assign dsp_rst = wb_rst;
-
// ///////////////////////////////////////////////////////////////////////////////////
// SERDES
diff --git a/usrp2/vrt/gen_context_pkt.v b/usrp2/vrt/gen_context_pkt.v
index 0eb035f3e..efc170743 100644
--- a/usrp2/vrt/gen_context_pkt.v
+++ b/usrp2/vrt/gen_context_pkt.v
@@ -38,9 +38,10 @@ module gen_context_pkt
stored_message <= message;
else if(ctxt_state == CTXT_FLOWCTRL1)
stored_message <= 0;
-
+
+ // Don't want to clear most of this to avoid getting stuck with a half packet in the pipe
always @(posedge clk)
- if(reset | clear)
+ if(reset)
begin
ctxt_state <= CTXT_IDLE;
seqno <= 0;
@@ -84,7 +85,7 @@ module gen_context_pkt
endcase // case (ctxt_state)
fifo_short #(.WIDTH(34)) ctxt_fifo
- (.clk(clk), .reset(reset), .clear(clear),
+ (.clk(clk), .reset(reset), .clear(0),
.datain(data_int), .src_rdy_i(src_rdy_int), .dst_rdy_o(dst_rdy_int),
.dataout(data_o[33:0]), .src_rdy_o(src_rdy_o), .dst_rdy_i(dst_rdy_i));
assign data_o[35:34] = 2'b00;
diff --git a/usrp2/vrt/vita_tx_chain.v b/usrp2/vrt/vita_tx_chain.v
index 00da4c6e1..21e826f1c 100644
--- a/usrp2/vrt/vita_tx_chain.v
+++ b/usrp2/vrt/vita_tx_chain.v
@@ -33,7 +33,11 @@ module vita_tx_chain
assign underrun = error & ~(error_code == 1);
assign message = error_code;
-
+
+ setting_reg #(.my_addr(BASE_CTRL+1)) sr
+ (.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr),
+ .in(set_data),.out(),.changed(clear_vita));
+
setting_reg #(.my_addr(BASE_CTRL+2), .at_reset(0)) sr_streamid
(.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr),
.in(set_data),.out(streamid),.changed(clear_seqnum));
@@ -88,7 +92,7 @@ module vita_tx_chain
assign debug = debug_vtc | debug_vtd;
fifo36_mux #(.prio(1)) mux_err_and_flow // Priority to err messages
- (.clk(clk), .reset(reset), .clear(clear_vita),
+ (.clk(clk), .reset(reset), .clear(0), // Don't clear this or it could get clogged
.data0_i(err_data_int), .src0_rdy_i(err_src_rdy_int), .dst0_rdy_o(err_dst_rdy_int),
.data1_i(flow_data), .src1_rdy_i(flow_src_rdy), .dst1_rdy_o(flow_dst_rdy),
.data_o(err_data_o), .src_rdy_o(err_src_rdy_o), .dst_rdy_i(err_dst_rdy_i));
diff --git a/usrp2/vrt/vita_tx_control.v b/usrp2/vrt/vita_tx_control.v
index 936762212..eb41c54c0 100644
--- a/usrp2/vrt/vita_tx_control.v
+++ b/usrp2/vrt/vita_tx_control.v
@@ -58,11 +58,6 @@ module vita_tx_control
reg [2:0] ibs_state;
- wire clear_state;
- setting_reg #(.my_addr(BASE+1)) sr
- (.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr),
- .in(set_data),.out(),.changed(clear_state));
-
wire [31:0] error_policy;
setting_reg #(.my_addr(BASE+3)) sr_error_policy
(.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr),
@@ -74,7 +69,7 @@ module vita_tx_control
reg send_error;
always @(posedge clk)
- if(reset | clear_state)
+ if(reset | clear)
begin
ibs_state <= IBS_IDLE;
send_error <= 0;
@@ -163,7 +158,7 @@ module vita_tx_control
assign error = send_error;
always @(posedge clk)
- if(reset)
+ if(reset | clear)
packet_consumed <= 0;
else
packet_consumed <= eop & sample_fifo_src_rdy_i & sample_fifo_dst_rdy_o;
diff --git a/usrp2/vrt/vita_tx_deframer.v b/usrp2/vrt/vita_tx_deframer.v
index 7fb8e3893..7697be367 100644
--- a/usrp2/vrt/vita_tx_deframer.v
+++ b/usrp2/vrt/vita_tx_deframer.v
@@ -80,7 +80,7 @@ module vita_tx_deframer
wire fifo_space;
always @(posedge clk)
- if(reset | clear_seqnum)
+ if(reset | clear | clear_seqnum)
begin
seqnum_reg <= 32'hFFFF_FFFF;
vita_seqnum_reg <= 4'hF;