fix: (issue #72) LF simulation didn't work with lo_edge_detect.v

Proxmark · Mar 6, 2015 · 7843130 · 7843130
1 parent 9cefee6
commit 7843130
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Showing 2 changed files with 5 additions and 3 deletions.
diff --git a/fpga/fpga_lf.bit b/fpga/fpga_lf.bit
diff --git a/fpga/lo_edge_detect.v b/fpga/lo_edge_detect.v
@@ -35,10 +35,12 @@ wire tag_modulation = ssp_dout & !lf_field;
 wire reader_modulation = !ssp_dout & lf_field & pck_divclk;
 
 // No logic, straight through.
-assign pwr_oe1 = 1'b0; // not used in LF mode
+assign pwr_oe1 = 1'b0; // not used in LF mode 
+assign pwr_oe3 = 1'b0; // base antenna load = 33 Ohms
+// when modulating, add another 33 Ohms and 10k Ohms in parallel:
 assign pwr_oe2 = tag_modulation;
-assign pwr_oe3 = tag_modulation;
-assign pwr_oe4 = tag_modulation;
+assign pwr_oe4 = tag_modulation; 
+
 assign ssp_clk = cross_lo;
 assign pwr_lo = reader_modulation;
 assign pwr_hi = 1'b0;