1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
|
//
// Copyright 2011 Ettus Research LLC
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
module u1plus_core
(input clk_fpga, input rst_fpga,
output [2:0] debug_led, output [31:0] debug, output [1:0] debug_clk,
output debug_txd, input debug_rxd,
// GPIF
inout [15:0] gpif_d, input [3:0] gpif_ctl, output [3:0] gpif_rdy,
output [2:0] gpif_misc, input gpif_clk,
inout db_sda, inout db_scl,
output sclk, output [15:0] sen, output mosi, input miso,
input cgen_st_status, input cgen_st_ld, input cgen_st_refmon, output cgen_sync_b, output cgen_ref_sel,
inout [15:0] io_tx, inout [15:0] io_rx,
output [13:0] tx_i, output [13:0] tx_q,
input [11:0] rx_i, input [11:0] rx_q,
input pps_in
);
localparam TXFIFOSIZE = 11;
localparam RXFIFOSIZE = 11;
// 64 total regs in address space
localparam SR_RX_CTRL0 = 0; // 9 regs (+0 to +8)
localparam SR_RX_DSP0 = 10; // 4 regs (+0 to +3)
localparam SR_RX_CTRL1 = 16; // 9 regs (+0 to +8)
localparam SR_RX_DSP1 = 26; // 4 regs (+0 to +3)
localparam SR_TX_CTRL = 32; // 4 regs (+0 to +3)
localparam SR_TX_DSP = 38; // 3 regs (+0 to +2)
localparam SR_TIME64 = 42; // 6 regs (+0 to +5)
localparam SR_RX_FRONT = 48; // 5 regs (+0 to +4)
localparam SR_TX_FRONT = 54; // 5 regs (+0 to +4)
localparam SR_REG_TEST32 = 60; // 1 reg
localparam SR_CLEAR_RX_FIFO = 61; // 1 reg
localparam SR_CLEAR_TX_FIFO = 62; // 1 reg
localparam SR_GLOBAL_RESET = 63; // 1 reg
localparam SR_GPIO = 128; // 5 regs
wire wb_clk = clk_fpga;
wire wb_rst, global_reset;
wire pps_int;
wire [63:0] vita_time, vita_time_pps;
reg [15:0] reg_cgen_ctrl, reg_test;
wire [7:0] set_addr;
wire [31:0] set_data;
wire set_stb;
wire [31:0] debug0;
wire [31:0] debug1;
wire [31:0] debug_vt;
wire gpif_rst;
reg [7:0] frames_per_packet;
wire rx_overrun_dsp0, rx_overrun_dsp1, rx_overrun_gpif, tx_underrun_dsp, tx_underrun_gpif;
wire rx_overrun = rx_overrun_gpif | rx_overrun_dsp0 | rx_overrun_dsp1;
wire tx_underrun = tx_underrun_gpif | tx_underrun_dsp;
setting_reg #(.my_addr(SR_GLOBAL_RESET), .width(1)) sr_reset
(.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
.in(set_data),.out(),.changed(global_reset));
reset_sync reset_sync_wb(.clk(wb_clk), .reset_in(rst_fpga | global_reset), .reset_out(wb_rst));
reset_sync reset_sync_gp(.clk(gpif_clk), .reset_in(rst_fpga | global_reset), .reset_out(gpif_rst));
// /////////////////////////////////////////////////////////////////////////////////////
// GPIF Slave to Wishbone Master
localparam dw = 16;
localparam aw = 11;
localparam sw = 2;
wire [dw-1:0] m0_dat_mosi, m0_dat_miso;
wire [aw-1:0] m0_adr;
wire [sw-1:0] m0_sel;
wire m0_cyc, m0_stb, m0_we, m0_ack, m0_err, m0_rty;
wire [31:0] debug_gpif;
wire [35:0] tx_data, rx_data, tx_err_data;
wire tx_src_rdy, tx_dst_rdy, rx_src_rdy, rx_dst_rdy,
tx_err_src_rdy, tx_err_dst_rdy;
wire clear_tx, clear_rx;
setting_reg #(.my_addr(SR_CLEAR_RX_FIFO), .width(1)) sr_clear_rx
(.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
.in(set_data),.out(),.changed(clear_rx));
setting_reg #(.my_addr(SR_CLEAR_TX_FIFO), .width(1)) sr_clear_tx
(.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
.in(set_data),.out(),.changed(clear_tx));
gpif #(.TXFIFOSIZE(TXFIFOSIZE), .RXFIFOSIZE(RXFIFOSIZE))
gpif (.gpif_clk(gpif_clk), .gpif_rst(gpif_rst), .gpif_d(gpif_d),
.gpif_ctl(gpif_ctl), .gpif_rdy(gpif_rdy), .gpif_misc(gpif_misc),
.wb_clk(wb_clk), .wb_rst(wb_rst),
.wb_adr_o(m0_adr), .wb_dat_mosi(m0_dat_mosi), .wb_dat_miso(m0_dat_miso),
.wb_sel_o(m0_sel), .wb_cyc_o(m0_cyc), .wb_stb_o(m0_stb), .wb_we_o(m0_we),
.wb_ack_i(m0_ack), .triggers(8'd0),
.fifo_clk(wb_clk), .fifo_rst(wb_rst), .clear_tx(clear_tx), .clear_rx(clear_rx),
.tx_data_o(tx_data), .tx_src_rdy_o(tx_src_rdy), .tx_dst_rdy_i(tx_dst_rdy),
.rx_data_i(rx_data), .rx_src_rdy_i(rx_src_rdy), .rx_dst_rdy_o(rx_dst_rdy),
.tx_err_data_i(tx_err_data), .tx_err_src_rdy_i(tx_err_src_rdy), .tx_err_dst_rdy_o(tx_err_dst_rdy),
.tx_underrun(tx_underrun_gpif), .rx_overrun(rx_overrun_gpif),
.frames_per_packet(frames_per_packet),
.debug0(debug0), .debug1(debug1));
// /////////////////////////////////////////////////////////////////////////
// RX ADC Frontend, does IQ Balance, DC Offset, muxing
wire [23:0] adc_i, adc_q; // 24 bits is total overkill here, but it matches u2/u2p
wire run_rx0, run_rx1;
rx_frontend #(.BASE(SR_RX_FRONT)) rx_frontend
(.clk(wb_clk),.rst(wb_rst),
.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
.adc_a({rx_i,4'b00}),.adc_ovf_a(0),
.adc_b({rx_q,4'b00}),.adc_ovf_b(0),
.i_out(adc_i), .q_out(adc_q), .run(run_rx0 | run_rx1), .debug());
// /////////////////////////////////////////////////////////////////////////
// DSP RX 0
wire [31:0] sample_rx0;
wire strobe_rx0;
wire [35:0] vita_rx_data0;
wire vita_rx_src_rdy0, vita_rx_dst_rdy0;
dsp_core_rx #(.BASE(SR_RX_DSP0)) dsp_core_rx0
(.clk(wb_clk),.rst(wb_rst),
.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
.adc_i(adc_i),.adc_ovf_i(0),.adc_q(adc_q),.adc_ovf_q(0),
.sample(sample_rx0), .run(run_rx0), .strobe(strobe_rx0),
.debug() );
vita_rx_chain #(.BASE(SR_RX_CTRL0), .UNIT(0), .FIFOSIZE(10), .PROT_ENG_FLAGS(0)) vita_rx_chain0
(.clk(wb_clk),.reset(wb_rst),.clear(clear_rx),
.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
.vita_time(vita_time), .overrun(rx_overrun_dsp0),
.sample(sample_rx0), .run(run_rx0), .strobe(strobe_rx0),
.rx_data_o(vita_rx_data0), .rx_dst_rdy_i(vita_rx_dst_rdy0), .rx_src_rdy_o(vita_rx_src_rdy0),
.debug() );
// /////////////////////////////////////////////////////////////////////////
// DSP RX 1
wire [31:0] sample_rx1;
wire strobe_rx1;
wire [35:0] vita_rx_data1;
wire vita_rx_src_rdy1, vita_rx_dst_rdy1;
dsp_core_rx #(.BASE(SR_RX_DSP1)) dsp_core_rx1
(.clk(wb_clk),.rst(wb_rst),
.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
.adc_i(adc_i),.adc_ovf_i(0),.adc_q(adc_q),.adc_ovf_q(0),
.sample(sample_rx1), .run(run_rx1), .strobe(strobe_rx1),
.debug() );
vita_rx_chain #(.BASE(SR_RX_CTRL1), .UNIT(1), .FIFOSIZE(10), .PROT_ENG_FLAGS(0)) vita_rx_chain1
(.clk(wb_clk),.reset(wb_rst),.clear(clear_rx),
.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
.vita_time(vita_time), .overrun(rx_overrun_dsp1),
.sample(sample_rx1), .run(run_rx1), .strobe(strobe_rx1),
.rx_data_o(vita_rx_data1), .rx_dst_rdy_i(vita_rx_dst_rdy1), .rx_src_rdy_o(vita_rx_src_rdy1),
.debug() );
// /////////////////////////////////////////////////////////////////////////
// RX Stream muxing
fifo36_mux #(.prio(0)) mux_data_streams
(.clk(wb_clk), .reset(wb_rst), .clear(0),
.data0_i(vita_rx_data0), .src0_rdy_i(vita_rx_src_rdy0), .dst0_rdy_o(vita_rx_dst_rdy0),
.data1_i(vita_rx_data1), .src1_rdy_i(vita_rx_src_rdy1), .dst1_rdy_o(vita_rx_dst_rdy1),
.data_o(rx_data), .src_rdy_o(rx_src_rdy), .dst_rdy_i(rx_dst_rdy));
// ///////////////////////////////////////////////////////////////////////////////////
// DSP TX
wire [23:0] tx_i_int, tx_q_int;
wire run_tx;
vita_tx_chain #(.BASE_CTRL(SR_TX_CTRL), .BASE_DSP(SR_TX_DSP),
.REPORT_ERROR(1), .DO_FLOW_CONTROL(0),
.PROT_ENG_FLAGS(0), .USE_TRANS_HEADER(0),
.DSP_NUMBER(0))
vita_tx_chain
(.clk(wb_clk), .reset(wb_rst),
.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
.vita_time(vita_time),
.tx_data_i(tx_data), .tx_src_rdy_i(tx_src_rdy), .tx_dst_rdy_o(tx_dst_rdy),
.err_data_o(tx_err_data), .err_src_rdy_o(tx_err_src_rdy), .err_dst_rdy_i(tx_err_dst_rdy),
.tx_i(tx_i_int),.tx_q(tx_q_int),
.underrun(tx_underrun_dsp), .run(run_tx),
.debug(debug_vt));
tx_frontend #(.BASE(SR_TX_FRONT), .WIDTH_OUT(14)) tx_frontend
(.clk(wb_clk), .rst(wb_rst),
.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
.tx_i(tx_i_int), .tx_q(tx_q_int), .run(1'b1),
.dac_a(tx_i), .dac_b(tx_q));
// /////////////////////////////////////////////////////////////////////////////////////
// Wishbone Intercon, single master
wire [dw-1:0] s0_dat_mosi, s1_dat_mosi, s0_dat_miso, s1_dat_miso, s2_dat_mosi, s3_dat_mosi, s2_dat_miso, s3_dat_miso,
s4_dat_mosi, s5_dat_mosi, s4_dat_miso, s5_dat_miso, s6_dat_mosi, s7_dat_mosi, s6_dat_miso, s7_dat_miso,
s8_dat_mosi, s9_dat_mosi, s8_dat_miso, s9_dat_miso, sa_dat_mosi, sb_dat_mosi, sa_dat_miso, sb_dat_miso,
sc_dat_mosi, sd_dat_mosi, sc_dat_miso, sd_dat_miso, se_dat_mosi, sf_dat_mosi, se_dat_miso, sf_dat_miso;
wire [aw-1:0] s0_adr,s1_adr,s2_adr,s3_adr,s4_adr,s5_adr,s6_adr,s7_adr;
wire [aw-1:0] s8_adr,s9_adr,sa_adr,sb_adr,sc_adr, sd_adr, se_adr, sf_adr;
wire [sw-1:0] s0_sel,s1_sel,s2_sel,s3_sel,s4_sel,s5_sel,s6_sel,s7_sel;
wire [sw-1:0] s8_sel,s9_sel,sa_sel,sb_sel,sc_sel, sd_sel, se_sel, sf_sel;
wire s0_ack,s1_ack,s2_ack,s3_ack,s4_ack,s5_ack,s6_ack,s7_ack;
wire s8_ack,s9_ack,sa_ack,sb_ack,sc_ack, sd_ack, se_ack, sf_ack;
wire s0_stb,s1_stb,s2_stb,s3_stb,s4_stb,s5_stb,s6_stb,s7_stb;
wire s8_stb,s9_stb,sa_stb,sb_stb,sc_stb, sd_stb, se_stb, sf_stb;
wire s0_cyc,s1_cyc,s2_cyc,s3_cyc,s4_cyc,s5_cyc,s6_cyc,s7_cyc;
wire s8_cyc,s9_cyc,sa_cyc,sb_cyc,sc_cyc, sd_cyc, se_cyc, sf_cyc;
wire s0_we,s1_we,s2_we,s3_we,s4_we,s5_we,s6_we,s7_we;
wire s8_we,s9_we,sa_we,sb_we,sc_we,sd_we, se_we, sf_we;
wb_1master #(.dw(dw), .aw(aw), .sw(sw), .decode_w(4),
.s0_addr(4'h0), .s0_mask(4'hF), // Misc Regs
.s1_addr(4'h1), .s1_mask(4'hF), // Unused
.s2_addr(4'h2), .s2_mask(4'hF), // SPI
.s3_addr(4'h3), .s3_mask(4'hF), // I2C
.s4_addr(4'h4), .s4_mask(4'hF), // Unused
.s5_addr(4'h5), .s5_mask(4'hF), // Unused on B1x0, Async Msg on E1x0
.s6_addr(4'h6), .s6_mask(4'hF), // Unused
.s7_addr(4'h7), .s7_mask(4'hF), // Readback MUX
.s8_addr(4'h8), .s8_mask(4'h8), // Setting Regs -- slave 8 is 8 slaves wide
// slaves 9-f alias to slave 1, all are unused
.s9_addr(4'h1), .s9_mask(4'hF),
.sa_addr(4'h1), .sa_mask(4'hF), .sb_addr(4'h1), .sb_mask(4'hF),
.sc_addr(4'h1), .sc_mask(4'hF), .sd_addr(4'h1), .sd_mask(4'hF),
.se_addr(4'h1), .se_mask(4'hF), .sf_addr(4'h1), .sf_mask(4'hF))
wb_1master
(.clk_i(wb_clk),.rst_i(wb_rst),
.m0_dat_o(m0_dat_miso),.m0_ack_o(m0_ack),.m0_err_o(m0_err),.m0_rty_o(m0_rty),.m0_dat_i(m0_dat_mosi),
.m0_adr_i(m0_adr),.m0_sel_i(m0_sel),.m0_we_i(m0_we),.m0_cyc_i(m0_cyc),.m0_stb_i(m0_stb),
.s0_dat_o(s0_dat_mosi),.s0_adr_o(s0_adr),.s0_sel_o(s0_sel),.s0_we_o(s0_we),.s0_cyc_o(s0_cyc),.s0_stb_o(s0_stb),
.s0_dat_i(s0_dat_miso),.s0_ack_i(s0_ack),.s0_err_i(0),.s0_rty_i(0),
.s1_dat_o(s1_dat_mosi),.s1_adr_o(s1_adr),.s1_sel_o(s1_sel),.s1_we_o(s1_we),.s1_cyc_o(s1_cyc),.s1_stb_o(s1_stb),
.s1_dat_i(s1_dat_miso),.s1_ack_i(s1_ack),.s1_err_i(0),.s1_rty_i(0),
.s2_dat_o(s2_dat_mosi),.s2_adr_o(s2_adr),.s2_sel_o(s2_sel),.s2_we_o(s2_we),.s2_cyc_o(s2_cyc),.s2_stb_o(s2_stb),
.s2_dat_i(s2_dat_miso),.s2_ack_i(s2_ack),.s2_err_i(0),.s2_rty_i(0),
.s3_dat_o(s3_dat_mosi),.s3_adr_o(s3_adr),.s3_sel_o(s3_sel),.s3_we_o(s3_we),.s3_cyc_o(s3_cyc),.s3_stb_o(s3_stb),
.s3_dat_i(s3_dat_miso),.s3_ack_i(s3_ack),.s3_err_i(0),.s3_rty_i(0),
.s4_dat_o(s4_dat_mosi),.s4_adr_o(s4_adr),.s4_sel_o(s4_sel),.s4_we_o(s4_we),.s4_cyc_o(s4_cyc),.s4_stb_o(s4_stb),
.s4_dat_i(s4_dat_miso),.s4_ack_i(s4_ack),.s4_err_i(0),.s4_rty_i(0),
.s5_dat_o(s5_dat_mosi),.s5_adr_o(s5_adr),.s5_sel_o(s5_sel),.s5_we_o(s5_we),.s5_cyc_o(s5_cyc),.s5_stb_o(s5_stb),
.s5_dat_i(s5_dat_miso),.s5_ack_i(s5_ack),.s5_err_i(0),.s5_rty_i(0),
.s6_dat_o(s6_dat_mosi),.s6_adr_o(s6_adr),.s6_sel_o(s6_sel),.s6_we_o(s6_we),.s6_cyc_o(s6_cyc),.s6_stb_o(s6_stb),
.s6_dat_i(s6_dat_miso),.s6_ack_i(s6_ack),.s6_err_i(0),.s6_rty_i(0),
.s7_dat_o(s7_dat_mosi),.s7_adr_o(s7_adr),.s7_sel_o(s7_sel),.s7_we_o(s7_we),.s7_cyc_o(s7_cyc),.s7_stb_o(s7_stb),
.s7_dat_i(s7_dat_miso),.s7_ack_i(s7_ack),.s7_err_i(0),.s7_rty_i(0),
.s8_dat_o(s8_dat_mosi),.s8_adr_o(s8_adr),.s8_sel_o(s8_sel),.s8_we_o(s8_we),.s8_cyc_o(s8_cyc),.s8_stb_o(s8_stb),
.s8_dat_i(s8_dat_miso),.s8_ack_i(s8_ack),.s8_err_i(0),.s8_rty_i(0),
.s9_dat_o(s9_dat_mosi),.s9_adr_o(s9_adr),.s9_sel_o(s9_sel),.s9_we_o(s9_we),.s9_cyc_o(s9_cyc),.s9_stb_o(s9_stb),
.s9_dat_i(s9_dat_miso),.s9_ack_i(s9_ack),.s9_err_i(0),.s9_rty_i(0),
.sa_dat_o(sa_dat_mosi),.sa_adr_o(sa_adr),.sa_sel_o(sa_sel),.sa_we_o(sa_we),.sa_cyc_o(sa_cyc),.sa_stb_o(sa_stb),
.sa_dat_i(sa_dat_miso),.sa_ack_i(sa_ack),.sa_err_i(0),.sa_rty_i(0),
.sb_dat_o(sb_dat_mosi),.sb_adr_o(sb_adr),.sb_sel_o(sb_sel),.sb_we_o(sb_we),.sb_cyc_o(sb_cyc),.sb_stb_o(sb_stb),
.sb_dat_i(sb_dat_miso),.sb_ack_i(sb_ack),.sb_err_i(0),.sb_rty_i(0),
.sc_dat_o(sc_dat_mosi),.sc_adr_o(sc_adr),.sc_sel_o(sc_sel),.sc_we_o(sc_we),.sc_cyc_o(sc_cyc),.sc_stb_o(sc_stb),
.sc_dat_i(sc_dat_miso),.sc_ack_i(sc_ack),.sc_err_i(0),.sc_rty_i(0),
.sd_dat_o(sd_dat_mosi),.sd_adr_o(sd_adr),.sd_sel_o(sd_sel),.sd_we_o(sd_we),.sd_cyc_o(sd_cyc),.sd_stb_o(sd_stb),
.sd_dat_i(sd_dat_miso),.sd_ack_i(sd_ack),.sd_err_i(0),.sd_rty_i(0),
.se_dat_o(se_dat_mosi),.se_adr_o(se_adr),.se_sel_o(se_sel),.se_we_o(se_we),.se_cyc_o(se_cyc),.se_stb_o(se_stb),
.se_dat_i(se_dat_miso),.se_ack_i(se_ack),.se_err_i(0),.se_rty_i(0),
.sf_dat_o(sf_dat_mosi),.sf_adr_o(sf_adr),.sf_sel_o(sf_sel),.sf_we_o(sf_we),.sf_cyc_o(sf_cyc),.sf_stb_o(sf_stb),
.sf_dat_i(sf_dat_miso),.sf_ack_i(sf_ack),.sf_err_i(0),.sf_rty_i(0) );
assign s1_ack = 0; assign s4_ack = 0; assign s5_ack = 0; assign s6_ack = 0;
assign s9_ack = 0; assign sa_ack = 0; assign sb_ack = 0;
assign sc_ack = 0; assign sd_ack = 0; assign se_ack = 0; assign sf_ack = 0;
// /////////////////////////////////////////////////////////////////////////////////////
// Slave 0, Misc LEDs, Switches, controls
localparam REG_CGEN_CTRL = 7'd4; // out
localparam REG_CGEN_ST = 7'd6; // in
localparam REG_TEST = 7'd8; // out
localparam REG_RX_FRAMELEN = 7'd10; // in
localparam REG_TX_FRAMELEN = 7'd12; // out
always @(posedge wb_clk)
if(wb_rst)
begin
reg_cgen_ctrl <= 2'b11;
reg_test <= 0;
frames_per_packet <= 0;
end
else
if(s0_cyc & s0_stb & s0_we)
case(s0_adr[6:0])
REG_CGEN_CTRL :
reg_cgen_ctrl <= s0_dat_mosi;
REG_TEST :
reg_test <= s0_dat_mosi;
REG_RX_FRAMELEN :
frames_per_packet <= s0_dat_mosi[7:0];
endcase // case (s0_adr[6:0])
assign debug_led = {run_tx, (run_rx0 | run_rx1), cgen_st_ld};
assign { cgen_sync_b, cgen_ref_sel } = reg_cgen_ctrl;
assign s0_dat_miso = (s0_adr[6:0] == REG_CGEN_CTRL) ? reg_cgen_ctrl :
(s0_adr[6:0] == REG_CGEN_ST) ? {13'b0,cgen_st_status,cgen_st_ld,cgen_st_refmon} :
(s0_adr[6:0] == REG_TEST) ? reg_test :
16'hBEEF;
assign s0_ack = s0_stb & s0_cyc;
// /////////////////////////////////////////////////////////////////////////////////////
// Slave 2, SPI
spi_top16 shared_spi
(.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),.wb_adr_i(s2_adr[4:0]),.wb_dat_i(s2_dat_mosi),
.wb_dat_o(s2_dat_miso),.wb_sel_i(s2_sel),.wb_we_i(s2_we),.wb_stb_i(s2_stb),
.wb_cyc_i(s2_cyc),.wb_ack_o(s2_ack),.wb_err_o(),.wb_int_o(),
.ss_pad_o(sen), .sclk_pad_o(sclk), .mosi_pad_o(mosi), .miso_pad_i(miso) );
// /////////////////////////////////////////////////////////////////////////
// Slave 3, I2C
wire scl_pad_i, scl_pad_o, scl_pad_oen_o, sda_pad_i, sda_pad_o, sda_pad_oen_o;
i2c_master_top #(.ARST_LVL(1)) i2c
(.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),.arst_i(1'b0),
.wb_adr_i(s3_adr[3:1]),.wb_dat_i(s3_dat_mosi[7:0]),.wb_dat_o(s3_dat_miso[7:0]),
.wb_we_i(s3_we),.wb_stb_i(s3_stb),.wb_cyc_i(s3_cyc),
.wb_ack_o(s3_ack),.wb_inta_o(),
.scl_pad_i(scl_pad_i),.scl_pad_o(scl_pad_o),.scl_padoen_o(scl_pad_oen_o),
.sda_pad_i(sda_pad_i),.sda_pad_o(sda_pad_o),.sda_padoen_o(sda_pad_oen_o) );
assign s3_dat_miso[15:8] = 8'd0;
// I2C -- Don't use external transistors for open drain, the FPGA implements this
IOBUF scl_pin(.O(scl_pad_i), .IO(db_scl), .I(scl_pad_o), .T(scl_pad_oen_o));
IOBUF sda_pin(.O(sda_pad_i), .IO(db_sda), .I(sda_pad_o), .T(sda_pad_oen_o));
// /////////////////////////////////////////////////////////////////////////
// GPIOs
wire [31:0] gpio_readback;
gpio_atr #(.BASE(SR_GPIO), .WIDTH(32))
gpio_atr(.clk(wb_clk),.reset(wb_rst),
.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
.rx(run_rx0 | run_rx1), .tx(run_tx),
.gpio({io_tx,io_rx}), .gpio_readback(gpio_readback) );
// /////////////////////////////////////////////////////////////////////////
// Settings Bus -- Slave #8 + 9
// only have 64 regs, 32 bits each with current setup...
settings_bus_16LE #(.AWIDTH(11),.RWIDTH(8)) settings_bus_16LE
(.wb_clk(wb_clk),.wb_rst(wb_rst),.wb_adr_i(s8_adr),.wb_dat_i(s8_dat_mosi),
.wb_stb_i(s8_stb),.wb_we_i(s8_we),.wb_ack_o(s8_ack),
.strobe(set_stb),.addr(set_addr),.data(set_data) );
// /////////////////////////////////////////////////////////////////////////
// Readback mux 32 -- Slave #7
//compatibility number -> increment when the fpga has been sufficiently altered
localparam compat_num = {16'd8, 16'd0}; //major, minor
wire [31:0] reg_test32;
setting_reg #(.my_addr(SR_REG_TEST32)) sr_reg_test32
(.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
.in(set_data),.out(reg_test32),.changed());
wb_readback_mux_16LE readback_mux_32
(.wb_clk_i(wb_clk), .wb_rst_i(wb_rst), .wb_stb_i(s7_stb),
.wb_adr_i({5'b0,s7_adr}), .wb_dat_o(s7_dat_miso), .wb_ack_o(s7_ack),
.word00(vita_time[63:32]), .word01(vita_time[31:0]),
.word02(vita_time_pps[63:32]), .word03(vita_time_pps[31:0]),
.word04(reg_test32), .word05(32'b0),
.word06(compat_num), .word07(gpio_readback),
.word08(32'b0), .word09(32'b0),
.word10(32'b0), .word11(32'b0),
.word12(32'b0), .word13(32'b0),
.word14(32'b0), .word15(32'b0)
);
// /////////////////////////////////////////////////////////////////////////
// VITA Timing
time_64bit #(.TICKS_PER_SEC(32'd64000000),.BASE(SR_TIME64)) time_64bit
(.clk(wb_clk), .rst(wb_rst), .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
.pps(pps_in), .vita_time(vita_time), .vita_time_pps(vita_time_pps), .pps_int(pps_int),
.exp_time_in(0));
// /////////////////////////////////////////////////////////////////////////////////////
// Debug circuitry
assign debug_clk = 2'b00; // { gpif_clk, clk_fpga };
assign debug = 0;
endmodule // u1plus_core
|
