diff options
Diffstat (limited to 'usrp2/top/safe_u1e/safe_u1e.v')
| -rw-r--r-- | usrp2/top/safe_u1e/safe_u1e.v | 362 |
1 files changed, 362 insertions, 0 deletions
diff --git a/usrp2/top/safe_u1e/safe_u1e.v b/usrp2/top/safe_u1e/safe_u1e.v new file mode 100644 index 000000000..c880a9e55 --- /dev/null +++ b/usrp2/top/safe_u1e/safe_u1e.v @@ -0,0 +1,362 @@ +`timescale 1ns / 1ps +////////////////////////////////////////////////////////////////////////////////// + +module safe_u1e + ( + input CLK_FPGA_P, input CLK_FPGA_N, // Diff + + // ADC + //input ADC_clkout_p, //input ADC_clkout_n, + //input ADCA_12_p, //input ADCA_12_n, + //input ADCA_10_p, //input ADCA_10_n, + //input ADCA_8_p, //input ADCA_8_n, + //input ADCA_6_p, //input ADCA_6_n, + //input ADCA_4_p, //input ADCA_4_n, + //input ADCA_2_p, //input ADCA_2_n, + //input ADCA_0_p, //input ADCA_0_n, + //input ADCB_12_p, //input ADCB_12_n, + //input ADCB_10_p, //input ADCB_10_n, + //input ADCB_8_p, //input ADCB_8_n, + //input ADCB_6_p, //input ADCB_6_n, + //input ADCB_4_p, //input ADCB_4_n, + //input ADCB_2_p, //input ADCB_2_n, + //input ADCB_0_p, //input ADCB_0_n, + + // DAC + //output [15:0] DACA, + //output [15:0] DACB, + //input DAC_LOCK, // unused for now + + // DB IO Pins + //inout [15:0] io_tx, + //inout [15:0] io_rx, + + // Misc, debug + output [5:1] leds, // LED4 is shared w/INIT_B + //input FPGA_RESET, + //output [1:0] debug_clk, + //output [31:0] debug, + //output [3:1] TXD, //input [3:1] RXD, // UARTs + ////input [3:0] dipsw, // Forgot DIP Switches... + + // Clock Gen Control + //output [1:0] clk_en, + //output [1:0] clk_sel, + //input CLK_FUNC, // FIXME is an //input to control the 9510 + //input CLK_STATUS, + + //inout SCL, //inout SDA, // I2C + + // PPS + //input PPS_IN, //input PPS2_IN, + + // SPI + //output SEN_CLK, //output SCLK_CLK, //output MOSI_CLK, //input MISO_CLK, + //output SEN_DAC, //output SCLK_DAC, //output MOSI_DAC, //input MISO_DAC, + //output SEN_ADC, //output SCLK_ADC, //output MOSI_ADC, + //output SEN_TX_DB, //output SCLK_TX_DB, //output MOSI_TX_DB, //input MISO_TX_DB, + //output SEN_TX_DAC, //output SCLK_TX_DAC, //output MOSI_TX_DAC, + //output SEN_TX_ADC, //output SCLK_TX_ADC, //output MOSI_TX_ADC, //input MISO_TX_ADC, + //output SEN_RX_DB, //output SCLK_RX_DB, //output MOSI_RX_DB, //input MISO_RX_DB, + //output SEN_RX_DAC, //output SCLK_RX_DAC, //output MOSI_RX_DAC, + //output SEN_RX_ADC, //output SCLK_RX_ADC, //output MOSI_RX_ADC, //input MISO_RX_ADC, + + // GigE PHY + //input CLK_TO_MAC, + + //output reg [7:0] GMII_TXD, + //output reg GMII_TX_EN, + //output reg GMII_TX_ER, + //output GMII_GTX_CLK, + //input GMII_TX_CLK, // 100mbps clk + + //input GMII_RX_CLK, + //input [7:0] GMII_RXD, + //input GMII_RX_DV, + //input GMII_RX_ER, + //input GMII_COL, + //input GMII_CRS, + + //input PHY_INTn, // open drain + //inout MDIO, + //output MDC, + //output PHY_RESETn, + output ETH_LED + + //input POR, + + // Expansion + //input exp_time_in_p, //input exp_time_in_n, // Diff + //output exp_time_out_p, //output exp_time_out_n, // Diff + //input exp_user_in_p, //input exp_user_in_n, // Diff + //output exp_user_out_p, //output exp_user_out_n, // Diff + + // SERDES + //output ser_enable, + //output ser_prbsen, + //output ser_loopen, + //output ser_rx_en, + + //output ser_tx_clk, + //output reg [15:0] ser_t, + //output reg ser_tklsb, + //output reg ser_tkmsb, + + //input ser_rx_clk, + //input [15:0] ser_r, + //input ser_rklsb, + //input ser_rkmsb, + + // SRAM + //inout [35:0] RAM_D, + //output [20:0] RAM_A, + //output [3:0] RAM_BWn, + //output RAM_ZZ, + //output RAM_LDn, + //output RAM_OEn, + //output RAM_WEn, + //output RAM_CENn, + //output RAM_CLK, + + // SPI Flash + //output flash_cs, + //output flash_clk, + //output flash_mosi, + //input flash_miso + ); + + // FPGA-specific pins connections + wire clk_fpga, dsp_clk, clk_div, dcm_out, wb_clk, clock_ready; + + IBUFGDS clk_fpga_pin (.O(clk_fpga),.I(CLK_FPGA_P),.IB(CLK_FPGA_N)); + defparam clk_fpga_pin.IOSTANDARD = "LVPECL_25"; + + reg [31:0] ctr; + + always @(posedge clk_fpga) + ctr <= ctr + 1; + + assign {leds,ETH_LED} = ~ctr[29:24]; + + +/* + wire exp_time_in; + IBUFDS exp_time_in_pin (.O(exp_time_in),.I(exp_time_in_p),.IB(exp_time_in_n)); + defparam exp_time_in_pin.IOSTANDARD = "LVDS_25"; + + wire exp_time_out; + OBUFDS exp_time_out_pin (.O(exp_time_out_p),.OB(exp_time_out_n),.I(exp_time_out)); + defparam exp_time_out_pin.IOSTANDARD = "LVDS_25"; + + wire dcm_rst = 0; + + wire [13:0] adc_a, adc_b; + + capture_ddrlvds #(.WIDTH(14)) capture_ddrlvds + (.clk(dsp_clk), .ssclk_p(ADC_clkout_p), .ssclk_n(ADC_clkout_n), + .in_p({{ADCA_12_p, ADCA_10_p, ADCA_8_p, ADCA_6_p, ADCA_4_p, ADCA_2_p, ADCA_0_p}, + {ADCB_12_p, ADCB_10_p, ADCB_8_p, ADCB_6_p, ADCB_4_p, ADCB_2_p, ADCB_0_p}}), + .in_n({{ADCA_12_n, ADCA_10_n, ADCA_8_n, ADCA_6_n, ADCA_4_n, ADCA_2_n, ADCA_0_n}, + {ADCB_12_n, ADCB_10_n, ADCB_8_n, ADCB_6_n, ADCB_4_n, ADCB_2_n, ADCB_0_n}}), + .out({adc_a,adc_b})); + + // Handle Clocks + DCM DCM_INST (.CLKFB(dsp_clk), + .CLKIN(clk_fpga), + .DSSEN(0), + .PSCLK(0), + .PSEN(0), + .PSINCDEC(0), + .RST(dcm_rst), + .CLKDV(clk_div), + .CLKFX(), + .CLKFX180(), + .CLK0(dcm_out), + .CLK2X(), + .CLK2X180(), + .CLK90(), + .CLK180(), + .CLK270(), + .LOCKED(LOCKED_OUT), + .PSDONE(), + .STATUS()); + defparam DCM_INST.CLK_FEEDBACK = "1X"; + defparam DCM_INST.CLKDV_DIVIDE = 2.0; + defparam DCM_INST.CLKFX_DIVIDE = 1; + defparam DCM_INST.CLKFX_MULTIPLY = 4; + defparam DCM_INST.CLKIN_DIVIDE_BY_2 = "FALSE"; + defparam DCM_INST.CLKIN_PERIOD = 10.000; + defparam DCM_INST.CLKOUT_PHASE_SHIFT = "NONE"; + defparam DCM_INST.DESKEW_ADJUST = "SYSTEM_SYNCHRONOUS"; + defparam DCM_INST.DFS_FREQUENCY_MODE = "LOW"; + defparam DCM_INST.DLL_FREQUENCY_MODE = "LOW"; + defparam DCM_INST.DUTY_CYCLE_CORRECTION = "TRUE"; + defparam DCM_INST.FACTORY_JF = 16'h8080; + defparam DCM_INST.PHASE_SHIFT = 0; + defparam DCM_INST.STARTUP_WAIT = "FALSE"; + + BUFG dspclk_BUFG (.I(dcm_out), .O(dsp_clk)); + BUFG wbclk_BUFG (.I(clk_div), .O(wb_clk)); + + // I2C -- Don't use external transistors for open drain, the FPGA implements this + IOBUF scl_pin(.O(scl_pad_i), .IO(SCL), .I(scl_pad_o), .T(scl_pad_oen_o)); + IOBUF sda_pin(.O(sda_pad_i), .IO(SDA), .I(sda_pad_o), .T(sda_pad_oen_o)); + + // LEDs are active low outputs + wire [4:0] leds_int; + assign leds = ~leds_int; // drive low to turn on leds + + // SPI + wire miso, mosi, sclk; + + assign {SCLK_CLK,MOSI_CLK} = ~SEN_CLK ? {sclk,mosi} : 2'B0; + assign {SCLK_DAC,MOSI_DAC} = ~SEN_DAC ? {sclk,mosi} : 2'B0; + assign {SCLK_ADC,MOSI_ADC} = ~SEN_ADC ? {sclk,mosi} : 2'B0; + assign {SCLK_TX_DB,MOSI_TX_DB} = ~SEN_TX_DB ? {sclk,mosi} : 2'B0; + assign {SCLK_TX_DAC,MOSI_TX_DAC} = ~SEN_TX_DAC ? {sclk,mosi} : 2'B0; + assign {SCLK_TX_ADC,MOSI_TX_ADC} = ~SEN_TX_ADC ? {sclk,mosi} : 2'B0; + assign {SCLK_RX_DB,MOSI_RX_DB} = ~SEN_RX_DB ? {sclk,mosi} : 2'B0; + assign {SCLK_RX_DAC,MOSI_RX_DAC} = ~SEN_RX_DAC ? {sclk,mosi} : 2'B0; + assign {SCLK_RX_ADC,MOSI_RX_ADC} = ~SEN_RX_ADC ? {sclk,mosi} : 2'B0; + + assign miso = (~SEN_CLK & MISO_CLK) | (~SEN_DAC & MISO_DAC) | + (~SEN_TX_DB & MISO_TX_DB) | (~SEN_TX_ADC & MISO_TX_ADC) | + (~SEN_RX_DB & MISO_RX_DB) | (~SEN_RX_ADC & MISO_RX_ADC); + + wire GMII_TX_EN_unreg, GMII_TX_ER_unreg; + wire [7:0] GMII_TXD_unreg; + wire GMII_GTX_CLK_int; + + always @(posedge GMII_GTX_CLK_int) + begin + GMII_TX_EN <= GMII_TX_EN_unreg; + GMII_TX_ER <= GMII_TX_ER_unreg; + GMII_TXD <= GMII_TXD_unreg; + end + + OFDDRRSE OFDDRRSE_gmii_inst + (.Q(GMII_GTX_CLK), // Data output (connect directly to top-level port) + .C0(GMII_GTX_CLK_int), // 0 degree clock input + .C1(~GMII_GTX_CLK_int), // 180 degree clock input + .CE(1), // Clock enable input + .D0(0), // Posedge data input + .D1(1), // Negedge data input + .R(0), // Synchronous reset input + .S(0) // Synchronous preset input + ); + + wire ser_tklsb_unreg, ser_tkmsb_unreg; + wire [15:0] ser_t_unreg; + wire ser_tx_clk_int; + + always @(posedge ser_tx_clk_int) + begin + ser_tklsb <= ser_tklsb_unreg; + ser_tkmsb <= ser_tkmsb_unreg; + ser_t <= ser_t_unreg; + end + + assign ser_tx_clk = clk_fpga; + + reg [15:0] ser_r_int; + reg ser_rklsb_int, ser_rkmsb_int; + + always @(posedge ser_rx_clk) + begin + ser_r_int <= ser_r; + ser_rklsb_int <= ser_rklsb; + ser_rkmsb_int <= ser_rkmsb; + end + + u2_core u2_core(.dsp_clk (dsp_clk), + .wb_clk (wb_clk), + .clock_ready (clock_ready), + .clk_to_mac (clk_to_mac), + .pps_in (pps_in), + .leds (leds_int), + .debug (debug[31:0]), + .debug_clk (debug_clk[1:0]), + .exp_pps_in (exp_time_in), + .exp_pps_out (exp_time_out), + .GMII_COL (GMII_COL), + .GMII_CRS (GMII_CRS), + .GMII_TXD (GMII_TXD_unreg[7:0]), + .GMII_TX_EN (GMII_TX_EN_unreg), + .GMII_TX_ER (GMII_TX_ER_unreg), + .GMII_GTX_CLK (GMII_GTX_CLK_int), + .GMII_TX_CLK (GMII_TX_CLK), + .GMII_RXD (GMII_RXD[7:0]), + .GMII_RX_CLK (GMII_RX_CLK), + .GMII_RX_DV (GMII_RX_DV), + .GMII_RX_ER (GMII_RX_ER), + .MDIO (MDIO), + .MDC (MDC), + .PHY_INTn (PHY_INTn), + .PHY_RESETn (PHY_RESETn), + .ser_enable (ser_enable), + .ser_prbsen (ser_prbsen), + .ser_loopen (ser_loopen), + .ser_rx_en (ser_rx_en), + .ser_tx_clk (ser_tx_clk_int), + .ser_t (ser_t_unreg[15:0]), + .ser_tklsb (ser_tklsb_unreg), + .ser_tkmsb (ser_tkmsb_unreg), + .ser_rx_clk (ser_rx_clk), + .ser_r (ser_r_int[15:0]), + .ser_rklsb (ser_rklsb_int), + .ser_rkmsb (ser_rkmsb_int), + .cpld_start (cpld_start), + .cpld_mode (cpld_mode), + .cpld_done (cpld_done), + .cpld_din (cpld_din), + .cpld_clk (cpld_clk), + .cpld_detached (cpld_detached), + .adc_a (adc_a[13:0]), + .adc_ovf_a (adc_ovf_a), + .adc_on_a (adc_on_a), + .adc_oe_a (adc_oe_a), + .adc_b (adc_b[13:0]), + .adc_ovf_b (adc_ovf_b), + .adc_on_b (adc_on_b), + .adc_oe_b (adc_oe_b), + .dac_a (DACA[15:0]), + .dac_b (DACB[15:0]), + .scl_pad_i (scl_pad_i), + .scl_pad_o (scl_pad_o), + .scl_pad_oen_o (scl_pad_oen_o), + .sda_pad_i (sda_pad_i), + .sda_pad_o (sda_pad_o), + .sda_pad_oen_o (sda_pad_oen_o), + .clk_en (clk_en[1:0]), + .clk_sel (clk_sel[1:0]), + .clk_func (clk_func), + .clk_status (clk_status), + .sclk (sclk_int), + .mosi (mosi), + .miso (miso), + .sen_clk (sen_clk), + .sen_dac (sen_dac), + .sen_tx_db (sen_tx_db), + .sen_tx_adc (sen_tx_adc), + .sen_tx_dac (sen_tx_dac), + .sen_rx_db (sen_rx_db), + .sen_rx_adc (sen_rx_adc), + .sen_rx_dac (sen_rx_dac), + .io_tx (io_tx[15:0]), + .io_rx (io_rx[15:0]), + .RAM_D (RAM_D), + .RAM_A (RAM_A), + .RAM_CE1n (RAM_CE1n), + .RAM_CENn (RAM_CENn), + .RAM_CLK (RAM_CLK), + .RAM_WEn (RAM_WEn), + .RAM_OEn (RAM_OEn), + .RAM_LDn (RAM_LDn), + .uart_tx_o (uart_tx_o), + .uart_rx_i (uart_rx_i), + .uart_baud_o (), + .sim_mode (1'b0), + .clock_divider (2) + ); +*/ +endmodule // safe_u2plus |