From 4eef4015672ffafb56d66feb57848772f42b54e3 Mon Sep 17 00:00:00 2001 From: Matt Ettus Date: Wed, 12 May 2010 16:10:08 -0700 Subject: move dsp settings regs to reclocked setting bus. Works, gets us to within 18ps of passing timing --- usrp2/top/u2_core/u2_core.v | 28 ++++++++++++++++------------ usrp2/top/u2_rev3/Makefile | 3 +++ 2 files changed, 19 insertions(+), 12 deletions(-) (limited to 'usrp2/top') diff --git a/usrp2/top/u2_core/u2_core.v b/usrp2/top/u2_core/u2_core.v index 2302f59ee..b57e4f127 100644 --- a/usrp2/top/u2_core/u2_core.v +++ b/usrp2/top/u2_core/u2_core.v @@ -154,9 +154,9 @@ module u2_core localparam SERDES_TX_FIFOSIZE = 9; localparam SERDES_RX_FIFOSIZE = 9; // RX currently doesn't use a fifo? - wire [7:0] set_addr; - wire [31:0] set_data; - wire set_stb; + wire [7:0] set_addr, set_addr_dsp; + wire [31:0] set_data, set_data_dsp; + wire set_stb, set_stb_dsp; wire ram_loader_done; wire ram_loader_rst, wb_rst, dsp_rst; @@ -359,7 +359,7 @@ module u2_core .wb_dat_o(s1_dat_i),.wb_ack_o(s1_ack),.wb_err_o(),.wb_rty_o(), .stream_clk(dsp_clk), .stream_rst(dsp_rst), - .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data), + .set_stb(set_stb_dsp), .set_addr(set_addr_dsp), .set_data(set_data_dsp), .status(status),.sys_int_o(buffer_int), .s0(status_b0),.s1(status_b1),.s2(status_b2),.s3(status_b3), @@ -454,7 +454,7 @@ module u2_core udp_wrapper #(.BASE(SR_UDP_SM)) udp_wrapper (.clk(dsp_clk), .reset(dsp_rst), .clear(0), - .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data), + .set_stb(set_stb_dsp), .set_addr(set_addr_dsp), .set_data(set_data_dsp), .rx_f19_data(rx_f19_data), .rx_f19_src_rdy_i(rx_f19_src_rdy), .rx_f19_dst_rdy_o(rx_f19_dst_rdy), .tx_f19_data(tx_f19_data), .tx_f19_src_rdy_o(tx_f19_src_rdy), .tx_f19_dst_rdy_i(tx_f19_dst_rdy), .rx_f36_data(udp_rx_data), .rx_f36_src_rdy_o(udp_rx_src_rdy), .rx_f36_dst_rdy_i(udp_rx_dst_rdy), @@ -480,6 +480,10 @@ module u2_core assign s7_dat_i = 32'd0; + settings_bus_crossclock settings_bus_crossclock + (.clk_i(wb_clk), .rst_i(wb_rst), .set_stb_i(set_stb), .set_addr_i(set_addr), .set_data_i(set_data), + .clk_o(dsp_clk), .rst_o(dsp_rst), .set_stb_o(set_stb_dsp), .set_addr_o(set_addr_dsp), .set_data_o(set_data_dsp)); + // Output control lines wire [7:0] clock_outs, serdes_outs, adc_outs; assign {clock_ready, clk_en[1:0], clk_sel[1:0]} = clock_outs[4:0]; @@ -600,7 +604,7 @@ module u2_core dsp_core_rx #(.BASE(SR_RX_DSP)) dsp_core_rx (.clk(dsp_clk),.rst(dsp_rst), - .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data), + .set_stb(set_stb_dsp),.set_addr(set_addr_dsp),.set_data(set_data_dsp), .adc_a(adc_a),.adc_ovf_a(adc_ovf_a),.adc_b(adc_b),.adc_ovf_b(adc_ovf_b), .sample(sample_rx), .run(run_rx_d1), .strobe(strobe_rx), .debug(debug_rx_dsp) ); @@ -609,7 +613,7 @@ module u2_core vita_rx_control #(.BASE(SR_RX_CTRL), .WIDTH(32)) vita_rx_control (.clk(dsp_clk), .reset(dsp_rst), .clear(0), - .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data), + .set_stb(set_stb_dsp),.set_addr(set_addr_dsp),.set_data(set_data_dsp), .vita_time(vita_time), .overrun(overrun), .sample(sample_rx), .run(run_rx), .strobe(strobe_rx), .sample_fifo_o(rx_data), .sample_fifo_dst_rdy_i(rx_dst_rdy), .sample_fifo_src_rdy_o(rx_src_rdy), @@ -619,7 +623,7 @@ module u2_core vita_rx_framer #(.BASE(SR_RX_CTRL), .MAXCHAN(1)) vita_rx_framer (.clk(dsp_clk), .reset(dsp_rst), .clear(0), - .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data), + .set_stb(set_stb_dsp),.set_addr(set_addr_dsp),.set_data(set_data_dsp), .sample_fifo_i(rx_data), .sample_fifo_dst_rdy_o(rx_dst_rdy), .sample_fifo_src_rdy_i(rx_src_rdy), .data_o(rx1_data), .dst_rdy_i(rx1_dst_rdy), .src_rdy_o(rx1_src_rdy), .fifo_occupied(), .fifo_full(), .fifo_empty(), @@ -646,14 +650,14 @@ module u2_core vita_tx_deframer #(.BASE(SR_TX_CTRL), .MAXCHAN(1)) vita_tx_deframer (.clk(dsp_clk), .reset(dsp_rst), .clear(0), - .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data), + .set_stb(set_stb_dsp),.set_addr(set_addr_dsp),.set_data(set_data_dsp), .data_i(tx_data), .src_rdy_i(tx_src_rdy), .dst_rdy_o(tx_dst_rdy), .sample_fifo_o(tx1_data), .sample_fifo_src_rdy_o(tx1_src_rdy), .sample_fifo_dst_rdy_i(tx1_dst_rdy), .debug(debug_vtd) ); vita_tx_control #(.BASE(SR_TX_CTRL), .WIDTH(32)) vita_tx_control (.clk(dsp_clk), .reset(dsp_rst), .clear(0), - .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data), + .set_stb(set_stb_dsp),.set_addr(set_addr_dsp),.set_data(set_data_dsp), .vita_time(vita_time),.underrun(underrun), .sample_fifo_i(tx1_data), .sample_fifo_src_rdy_i(tx1_src_rdy), .sample_fifo_dst_rdy_o(tx1_dst_rdy), .sample(sample_tx), .run(run_tx), .strobe(strobe_tx), @@ -663,7 +667,7 @@ module u2_core dsp_core_tx #(.BASE(SR_TX_DSP)) dsp_core_tx (.clk(dsp_clk),.rst(dsp_rst), - .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data), + .set_stb(set_stb_dsp),.set_addr(set_addr_dsp),.set_data(set_data_dsp), .sample(sample_tx), .run(run_tx), .strobe(strobe_tx), .dac_a(dac_a),.dac_b(dac_b), .debug(debug_tx_dsp) ); @@ -720,7 +724,7 @@ module u2_core // VITA Timing time_64bit #(.TICKS_PER_SEC(32'd100000000),.BASE(SR_TIME64)) time_64bit - (.clk(dsp_clk), .rst(dsp_rst), .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data), + (.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)); // ///////////////////////////////////////////////////////////////////////////////////////// diff --git a/usrp2/top/u2_rev3/Makefile b/usrp2/top/u2_rev3/Makefile index 867fb5cab..af93700c5 100644 --- a/usrp2/top/u2_rev3/Makefile +++ b/usrp2/top/u2_rev3/Makefile @@ -70,6 +70,7 @@ control_lib/ram_harv_cache.v \ control_lib/ram_loader.v \ control_lib/setting_reg.v \ control_lib/settings_bus.v \ +control_lib/settings_bus_crossclock.v \ control_lib/srl.v \ control_lib/system_control.v \ control_lib/wb_1master.v \ @@ -134,6 +135,8 @@ coregen/fifo_xlnx_64x36_2clk.v \ coregen/fifo_xlnx_64x36_2clk.xco \ coregen/fifo_xlnx_16x19_2clk.v \ coregen/fifo_xlnx_16x19_2clk.xco \ +coregen/fifo_xlnx_16x40_2clk.v \ +coregen/fifo_xlnx_16x40_2clk.xco \ extram/wb_zbt16_b.v \ opencores/8b10b/decode_8b10b.v \ opencores/8b10b/encode_8b10b.v \ -- cgit v1.2.3