RfidResearchGroup/proxmark3
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This commit is contained in:
iceman1001 2020-01-12 00:31:08 +01:00
parent 621eb12976
commit e4bd3544d5
1 changed files with 20 additions and 14 deletions
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12
fpga/fpga_hf.v
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@ -13,6 +13,8 @@
// iZsh <izsh at fail0verflow.com>, June 2014
//-----------------------------------------------------------------------------
`define FPGA_CMD_SET_CONFREG 1
`include "hi_read_tx.v"
`include "hi_read_rx_xcorr.v"
`include "hi_simulate.v"
@ -48,7 +50,10 @@ reg [7:0] conf_word;
always @(posedge ncs)
begin
case(shift_reg[15:12])
4'b0001: conf_word <= shift_reg[7:0]; // FPGA_CMD_SET_CONFREG
`FPGA_CMD_SET_CONFREG:
begin
conf_word <= shift_reg[7:0];
end
endcase
end
@ -61,8 +66,7 @@ begin
end
end
wire [2:0] major_mode;
assign major_mode = conf_word[7:5];
wire [2:0] major_mode = conf_word[7:5];
// For the high-frequency transmit configuration: modulation depth, either
// 100% (just quite driving antenna, steady LOW), or shallower (tri-state
@ -72,8 +76,10 @@ wire hi_read_tx_shallow_modulation = conf_word[0];
// For the high-frequency receive correlator: frequency against which to
// correlate.
wire hi_read_rx_xcorr_848 = conf_word[0];
// and whether to drive the coil (reader) or just short it (snooper)
wire hi_read_rx_xcorr_snoop = conf_word[1];
// divide subcarrier frequency by 4
wire hi_read_rx_xcorr_quarter = conf_word[2];