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[proxmark3-svn] / fpga / testbed_hi_simulate.v
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ba06a4b6 1`include "hi_simulate.v"
2
3/*
4 pck0 - input main 24Mhz clock (PLL / 4)
5 [7:0] adc_d - input data from A/D converter
6 mod_type - modulation type
7
8 pwr_lo - output to coil drivers (ssp_clk / 8)
9 adc_clk - output A/D clock signal
10 ssp_frame - output SSS frame indicator (goes high while the 8 bits are shifted)
11 ssp_din - output SSP data to ARM (shifts 8 bit A/D value serially to ARM MSB first)
12 ssp_clk - output SSP clock signal
13
14 ck_1356meg - input unused
15 ck_1356megb - input unused
16 ssp_dout - input unused
17 cross_hi - input unused
18 cross_lo - input unused
19
20 pwr_hi - output unused, tied low
21 pwr_oe1 - output unused, undefined
22 pwr_oe2 - output unused, undefined
23 pwr_oe3 - output unused, undefined
24 pwr_oe4 - output unused, undefined
25 dbg - output alias for adc_clk
26*/
27
28module testbed_hi_simulate;
29 reg pck0;
30 reg [7:0] adc_d;
31 reg mod_type;
32
33 wire pwr_lo;
34 wire adc_clk;
35 reg ck_1356meg;
36 reg ck_1356megb;
37 wire ssp_frame;
38 wire ssp_din;
39 wire ssp_clk;
40 reg ssp_dout;
41 wire pwr_hi;
42 wire pwr_oe1;
43 wire pwr_oe2;
44 wire pwr_oe3;
45 wire pwr_oe4;
46 wire cross_lo;
47 wire cross_hi;
48 wire dbg;
49
50 hi_simulate #(5,200) dut(
51 .pck0(pck0),
52 .ck_1356meg(ck_1356meg),
53 .ck_1356megb(ck_1356megb),
54 .pwr_lo(pwr_lo),
55 .pwr_hi(pwr_hi),
56 .pwr_oe1(pwr_oe1),
57 .pwr_oe2(pwr_oe2),
58 .pwr_oe3(pwr_oe3),
59 .pwr_oe4(pwr_oe4),
60 .adc_d(adc_d),
61 .adc_clk(adc_clk),
62 .ssp_frame(ssp_frame),
63 .ssp_din(ssp_din),
64 .ssp_dout(ssp_dout),
65 .ssp_clk(ssp_clk),
66 .cross_hi(cross_hi),
67 .cross_lo(cross_lo),
68 .dbg(dbg),
69 .mod_type(mod_type)
70 );
71
72 integer idx, i;
73
74 // main clock
75 always #5 begin
76 ck_1356megb = !ck_1356megb;
77 ck_1356meg = ck_1356megb;
78 end
79
80 always begin
81 @(negedge adc_clk) ;
82 adc_d = $random;
83 end
84
85 //crank DUT
86 task crank_dut;
87 begin
88 @(negedge ssp_clk) ;
89 ssp_dout = $random;
90 end
91 endtask
92
93 initial begin
94
95 // init inputs
96 ck_1356megb = 0;
97 // random values
98 adc_d = 0;
99 ssp_dout=1;
100
101 // shallow modulation off
102 mod_type=0;
103 for (i = 0 ; i < 16 ; i = i + 1) begin
104 crank_dut;
105 end
106
107 // shallow modulation on
108 mod_type=1;
109 for (i = 0 ; i < 16 ; i = i + 1) begin
110 crank_dut;
111 end
112 $finish;
113 end
114
115endmodule // main
116
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