X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/30f2a7d38fd35b2427a7eb42e1cd75fb1105f927..5e174a511b37e17cd3fcaedad608ce605ba34ce9:/fpga/fpga.v

diff --git a/fpga/fpga.v b/fpga/fpga.v
index 2a226946..c39109f9 100644
--- a/fpga/fpga.v
+++ b/fpga/fpga.v
@@ -13,6 +13,7 @@
 //-----------------------------------------------------------------------------
 
 `include "lo_read.v"
+`include "lo_passthru.v"
 `include "lo_simulate.v"
 `include "hi_read_tx.v"
 `include "hi_read_rx_xcorr.v"
@@ -102,6 +103,10 @@ assign hi_read_rx_xcorr_848 = conf_word[0];
 wire hi_read_rx_xcorr_snoop;
 assign hi_read_rx_xcorr_snoop = conf_word[1];
 
+// Divide the expected subcarrier frequency for hi_read_rx_xcorr by 4
+wire hi_read_rx_xcorr_quarter;
+assign hi_read_rx_xcorr_quarter = conf_word[2];
+
 // For the high-frequency simulated tag: what kind of modulation to use.
 wire [2:0] hi_simulate_mod_type;
 assign hi_simulate_mod_type = conf_word[2:0];
@@ -122,13 +127,22 @@ lo_read lr(
 	lo_is_125khz, divisor
 );
 
+lo_passthru lp(
+	pck0, ck_1356meg, ck_1356megb,
+	lp_pwr_lo, lp_pwr_hi, lp_pwr_oe1, lp_pwr_oe2, lp_pwr_oe3, lp_pwr_oe4,
+	adc_d, lp_adc_clk,
+	lp_ssp_frame, lp_ssp_din, ssp_dout, lp_ssp_clk,
+	cross_hi, cross_lo,
+	lp_dbg, divisor
+);
+
 lo_simulate 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
+	ls_dbg, divisor
 );
 
 hi_read_tx ht(
@@ -148,7 +162,7 @@ hi_read_rx_xcorr hrxc(
 	hrxc_ssp_frame, hrxc_ssp_din, ssp_dout, hrxc_ssp_clk,
 	cross_hi, cross_lo,
 	hrxc_dbg,
-	hi_read_rx_xcorr_848, hi_read_rx_xcorr_snoop
+	hi_read_rx_xcorr_848, hi_read_rx_xcorr_snoop, hi_read_rx_xcorr_quarter
 );
 
 hi_simulate hs(
@@ -178,20 +192,20 @@ hi_iso14443a hisn(
 //   011 --  HF reader, receiving from tag, correlating as it goes; frequency selectable
 //   100 --  HF simulated tag
 //   101 --  HF ISO14443-A
-//   110 --  unused
+//   110 --  LF passthrough
 //   111 --  everything off
 
-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,   1'b0, 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,   1'b0, 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, 1'b0, 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,   1'b0, 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,   1'b0, 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,   1'b0, 1'b0);
-mux8 mux_pwr_oe4	(major_mode, pwr_oe4,   lr_pwr_oe4,   ls_pwr_oe4,   ht_pwr_oe4,   hrxc_pwr_oe4,   hs_pwr_oe4,   hisn_pwr_oe4,   1'b0, 1'b0);
-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,    1'b0, 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,    1'b0, 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,   1'b0, 1'b0);
-mux8 mux_dbg		(major_mode, dbg,       lr_dbg,       ls_dbg,       ht_dbg,       hrxc_dbg,       hs_dbg,       hisn_dbg,       1'b0, 1'b0);
+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_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);
+mux8 mux_pwr_oe4		(major_mode, pwr_oe4,   lr_pwr_oe4,   ls_pwr_oe4,   ht_pwr_oe4,   hrxc_pwr_oe4,   hs_pwr_oe4,   hisn_pwr_oe4,   lp_pwr_oe4,   1'b0);
+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);
 
 // In all modes, let the ADC's outputs be enabled.
 assign adc_noe = 1'b0;