bugfix hf 14a sim / hf mf sim: polarity of tag subcarrier modulation was wrong

diff --git a/fpga/fpga_hf.bit b/fpga/fpga_hf.bit
index 8b0c7a3788ef438c94eaed81346a08f24927f954..4910e6ac50d6e3cb405bacee3eef47de443b0147 100644 (file)
Binary files a/fpga/fpga_hf.bit and b/fpga/fpga_hf.bit differ

diff --git a/fpga/hi_iso14443a.v b/fpga/hi_iso14443a.v
index 3f614fdd82175805a0c6495a1b1dab32ba759f4b..46adda12c47c8d5ef5f0860754cfd8d996d468e5 100644 (file)
--- a/fpga/hi_iso14443a.v
+++ b/fpga/hi_iso14443a.v
@@ -570,7 +570,7 @@ assign pwr_oe3 = 1'b0;
 // TAGSIM_MOD: short circuit antenna with different resistances (modulated by sub_carrier modulated by mod_sig_coil)
 // for pwr_oe4 = 1 (tristate): antenna load = 10k || 33                        = 32,9 Ohms
 // for pwr_oe4 = 0 (active):   antenna load = 10k || 33 || 33          = 16,5 Ohms
 // TAGSIM_MOD: short circuit antenna with different resistances (modulated by sub_carrier modulated by mod_sig_coil)
 // for pwr_oe4 = 1 (tristate): antenna load = 10k || 33                        = 32,9 Ohms
 // for pwr_oe4 = 0 (active):   antenna load = 10k || 33 || 33          = 16,5 Ohms

-assign pwr_oe4 = ~(mod_sig_coil & sub_carrier & (mod_type == `TAGSIM_MOD));
+assign pwr_oe4 = mod_sig_coil & sub_carrier & (mod_type == `TAGSIM_MOD);

 
 // This is all LF, so doesn't matter.
 assign pwr_oe2 = 1'b0;
 
 // This is all LF, so doesn't matter.
 assign pwr_oe2 = 1'b0;