Improvements/Fixes to 14443 sniffing/snooping

[proxmark3-svn] / fpga / fpga.v

diff --git a/fpga/fpga.v b/fpga/fpga.v
index 4002945baa4b7ff52da9ba14a8aa7297772305a2..a083ae5cf018cb87de610d70b3be649edcca179b 100644 (file)
--- a/fpga/fpga.v
+++ b/fpga/fpga.v
@@ -14,7 +14,7 @@
 
 `include "lo_read.v"
 `include "lo_passthru.v"
-`include "lo_simulate.v"
+`include "lo_edge_detect.v"
 `include "hi_read_tx.v"
 `include "hi_read_rx_xcorr.v"
 `include "hi_simulate.v"
@@ -22,17 +22,17 @@
 `include "util.v"
 
 module fpga(
-       spcki, miso, mosi, ncs,
-       pck0i, ck_1356meg, ck_1356megb,
+       spck, miso, mosi, ncs,
+       pck0, ck_1356meg, ck_1356megb,
        pwr_lo, pwr_hi, pwr_oe1, pwr_oe2, pwr_oe3, pwr_oe4,
        adc_d, adc_clk, adc_noe,
        ssp_frame, ssp_din, ssp_dout, ssp_clk,
        cross_hi, cross_lo,
        dbg
 );
-       input spcki, mosi, ncs;
+       input spck, mosi, ncs;
        output miso;
-       input pck0i, ck_1356meg, ck_1356megb;
+       input pck0, ck_1356meg, ck_1356megb;
        output pwr_lo, pwr_hi, pwr_oe1, pwr_oe2, pwr_oe3, pwr_oe4;
        input [7:0] adc_d;
        output adc_clk, adc_noe;
@@ -42,15 +42,17 @@ module fpga(
        output dbg;
 
 //assign pck0 = pck0i;
-       IBUFG #(.IOSTANDARD("DEFAULT") ) pck0b(
-               .O(pck0),
-               .I(pck0i)
-       );
+//     IBUFG #(.IOSTANDARD("DEFAULT") ) pck0b(
+//             .O(pck0),
+//             .I(pck0i)
+//     );
 //assign spck = spcki;
-       IBUFG #(.IOSTANDARD("DEFAULT") ) spckb(
-               .O(spck),
-               .I(spcki)
-       );
+// IBUFG #(.IOSTANDARD("DEFAULT") ) spckb(
+       // .O(spck),
+       // .I(spcki)
+// );
+
+
 //-----------------------------------------------------------------------------
 // The SPI receiver. This sets up the configuration word, which the rest of
 // the logic looks at to determine how to connect the A/D and the coil
@@ -68,8 +70,8 @@ reg [7:0] conf_word;
 always @(posedge ncs)
 begin
        case(shift_reg[15:12])
-               4'b0001: conf_word <= shift_reg[7:0];
-               4'b0010: divisor <= shift_reg[7:0];
+               4'b0001: conf_word <= shift_reg[7:0];           // FPGA_CMD_SET_CONFREG
+               4'b0010: divisor <= shift_reg[7:0];                     // FPGA_CMD_SET_DIVISOR
        endcase
 end
 
@@ -111,6 +113,10 @@ assign hi_read_rx_xcorr_quarter = conf_word[2];
 wire [2:0] hi_simulate_mod_type;
 assign hi_simulate_mod_type = conf_word[2:0];
 
+// For the high-frequency simulated tag: what kind of modulation to use.
+wire lf_field;
+assign lf_field = conf_word[0];
+
 //-----------------------------------------------------------------------------
 // And then we instantiate the modules corresponding to each of the FPGA's
 // major modes, and use muxes to connect the outputs of the active mode to
@@ -136,13 +142,14 @@ lo_passthru lp(
        lp_dbg, divisor
 );
 
-lo_simulate ls(
+lo_edge_detect ls(
        pck0, ck_1356meg, ck_1356megb,
        ls_pwr_lo, ls_pwr_hi, ls_pwr_oe1, ls_pwr_oe2, ls_pwr_oe3, ls_pwr_oe4,
        adc_d, ls_adc_clk,
        ls_ssp_frame, ls_ssp_din, ssp_dout, ls_ssp_clk,
        cross_hi, cross_lo,
-       ls_dbg, divisor
+       ls_dbg, divisor,
+       lf_field
 );
 
 hi_read_tx ht(
@@ -197,7 +204,7 @@ hi_iso14443a hisn(
 
 mux8 mux_ssp_clk               (major_mode, ssp_clk,   lr_ssp_clk,   ls_ssp_clk,   ht_ssp_clk,   hrxc_ssp_clk,   hs_ssp_clk,   hisn_ssp_clk,   lp_ssp_clk,   1'b0);
 mux8 mux_ssp_din               (major_mode, ssp_din,   lr_ssp_din,   ls_ssp_din,   ht_ssp_din,   hrxc_ssp_din,   hs_ssp_din,   hisn_ssp_din,   lp_ssp_din,   1'b0);
-mux8 mux_ssp_frame     (major_mode, ssp_frame, lr_ssp_frame, ls_ssp_frame, ht_ssp_frame, hrxc_ssp_frame, hs_ssp_frame, hisn_ssp_frame, lp_ssp_frame, 1'b0);
+mux8 mux_ssp_frame             (major_mode, ssp_frame, lr_ssp_frame, ls_ssp_frame, ht_ssp_frame, hrxc_ssp_frame, hs_ssp_frame, hisn_ssp_frame, lp_ssp_frame, 1'b0);
 mux8 mux_pwr_oe1               (major_mode, pwr_oe1,   lr_pwr_oe1,   ls_pwr_oe1,   ht_pwr_oe1,   hrxc_pwr_oe1,   hs_pwr_oe1,   hisn_pwr_oe1,   lp_pwr_oe1,   1'b0);
 mux8 mux_pwr_oe2               (major_mode, pwr_oe2,   lr_pwr_oe2,   ls_pwr_oe2,   ht_pwr_oe2,   hrxc_pwr_oe2,   hs_pwr_oe2,   hisn_pwr_oe2,   lp_pwr_oe2,   1'b0);
 mux8 mux_pwr_oe3               (major_mode, pwr_oe3,   lr_pwr_oe3,   ls_pwr_oe3,   ht_pwr_oe3,   hrxc_pwr_oe3,   hs_pwr_oe3,   hisn_pwr_oe3,   lp_pwr_oe3,   1'b0);
@@ -205,7 +212,7 @@ mux8 mux_pwr_oe4            (major_mode, pwr_oe4,   lr_pwr_oe4,   ls_pwr_oe4,   ht_pwr_oe4
 mux8 mux_pwr_lo                        (major_mode, pwr_lo,    lr_pwr_lo,    ls_pwr_lo,    ht_pwr_lo,    hrxc_pwr_lo,    hs_pwr_lo,    hisn_pwr_lo,    lp_pwr_lo,    1'b0);
 mux8 mux_pwr_hi                        (major_mode, pwr_hi,    lr_pwr_hi,    ls_pwr_hi,    ht_pwr_hi,    hrxc_pwr_hi,    hs_pwr_hi,    hisn_pwr_hi,    lp_pwr_hi,    1'b0);
 mux8 mux_adc_clk               (major_mode, adc_clk,   lr_adc_clk,   ls_adc_clk,   ht_adc_clk,   hrxc_adc_clk,   hs_adc_clk,   hisn_adc_clk,   lp_adc_clk,   1'b0);
-mux8 mux_dbg                           (major_mode, dbg,       lr_dbg,       ls_dbg,       ht_dbg,       hrxc_dbg,       hs_dbg,       hisn_dbg,       lp_dbg,       1'b0);
+mux8 mux_dbg                   (major_mode, dbg,       lr_dbg,       ls_dbg,       ht_dbg,       hrxc_dbg,       hs_dbg,       hisn_dbg,       lp_dbg,       1'b0);
 
 // In all modes, let the ADC's outputs be enabled.
 assign adc_noe = 1'b0;