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[/] [openmsp430/] [trunk/] [core/] [sim/] [rtl_sim/] [src/] [op_modes_asic.v] - Blame information for rev 166

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1 134 olivier.gi 
/*===========================================================================*/
2 
/* Copyright (C) 2001 Authors                                                */
3 
/*                                                                           */
4 
/* This source file may be used and distributed without restriction provided */
5 
/* that this copyright statement is not removed from the file and that any   */
6 
/* derivative work contains the original copyright notice and the associated */
7 
/* disclaimer.                                                               */
8 
/*                                                                           */
9 
/* This source file is free software; you can redistribute it and/or modify  */
10 
/* it under the terms of the GNU Lesser General Public License as published  */
11 
/* by the Free Software Foundation; either version 2.1 of the License, or    */
12 
/* (at your option) any later version.                                       */
13 
/*                                                                           */
14 
/* This source is distributed in the hope that it will be useful, but WITHOUT*/
15 
/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or     */
16 
/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public       */
17 
/* License for more details.                                                 */
18 
/*                                                                           */
19 
/* You should have received a copy of the GNU Lesser General Public License  */
20 
/* along with this source; if not, write to the Free Software Foundation,    */
21 
/* Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA        */
22 
/*                                                                           */
23 
/*===========================================================================*/
24 
/*                            CPU OPERATING MODES                            */
25 
/*---------------------------------------------------------------------------*/
26 
/* Test the CPU Operating modes:                                             */
27 
/*                                 - CPUOFF (<=> R2[4]): turn off CPU.       */
28 
/*                                 - OSCOFF (<=> R2[5]): turn off LFXT_CLK.  */
29 
/*                                 - SCG0   (<=> R2[6]): turn off DCO.       */
30 
/*                                 - SCG1   (<=> R2[7]): turn off SMCLK.     */
31 
/*                                                                           */
32 
/* Author(s):                                                                */
33 
/*             - Olivier Girard,    olgirard@gmail.com                       */
34 
/*                                                                           */
35 
/*---------------------------------------------------------------------------*/
36 
/* $Rev: 95 $                                                                */
37 
/* $LastChangedBy: olivier.girard $                                          */
38 
/* $LastChangedDate: 2011-02-24 21:37:57 +0100 (Thu, 24 Feb 2011) $          */
39 
/*===========================================================================*/
40 
 
41 
integer dco_clk_cnt;
42 
always @(negedge dco_clk)
43 
  dco_clk_cnt <= dco_clk_cnt+1;
44 
 
45 
integer mclk_cnt;
46 
always @(negedge mclk)
47 
  mclk_cnt <= mclk_cnt+1;
48 
 
49 
integer smclk_cnt;
50 
always @(negedge smclk)
51 
  smclk_cnt <= smclk_cnt+1;
52 
 
53 
integer aclk_cnt;
54 
always @(negedge aclk)
55 
  aclk_cnt <= aclk_cnt+1;
56 
 
57 
integer inst_cnt;
58 
always @(inst_number)
59 
  inst_cnt = inst_cnt+1;
60 
 
61 
// Wakeup synchronizer to generate IRQ
62 
reg [1:0] wkup2_sync;
63 
always @(posedge mclk or posedge puc_rst)
64 
  if (puc_rst) wkup2_sync <= 2'b00;
65 
  else         wkup2_sync <= {wkup2_sync[0], wkup[2]};
66 
 
67 
always @(wkup2_sync)
68 
  irq[2] = wkup2_sync[1];
69 
 
70 
// Wakeup synchronizer to generate IRQ
71 
reg [1:0] wkup3_sync;
72 
always @(posedge mclk or posedge puc_rst)
73 
  if (puc_rst) wkup3_sync <= 2'b00;
74 
  else         wkup3_sync <= {wkup3_sync[0], wkup[3]};
75 
 
76 
always @(wkup3_sync)
77 
  irq[3] = wkup3_sync[1];
78 
 
79 
 
80 
initial
81 
   begin
82 
      $display(" ===============================================");
83 
      $display("|                 START SIMULATION              |");
84 
      $display(" ===============================================");
85 
      repeat(5) @(posedge mclk);
86 
      stimulus_done = 0;
87 
 
88 
      irq[2]  = 0;
89 
      wkup[2] = 0;
90 
 
91 
      irq[3]  = 0;
92 
      wkup[3] = 0;
93 
 
94 
 
95 
`ifdef ASIC
96 
 
97 
      // SCG1   (<=> R2[7]): turn off SMCLK
98 
      //--------------------------------------------------------
99 
 
100 
      @(r15==16'h1001);
101 
      repeat (10)  @(posedge mclk);
102 
      smclk_cnt = 0;
103 
      repeat (100) @(posedge mclk);
104 
      if (smclk_cnt !== 100) tb_error("====== SCG1 TEST 1: SMCLK IS NOT RUNNING =====");
105 
      smclk_cnt = 0;
106 
 
107 
      @(r15==16'h1002);
108 
      repeat (10)  @(posedge mclk);
109 
      smclk_cnt = 0;
110 
      repeat (100) @(posedge mclk);
111 
`ifdef SCG1_EN
112 
      if (smclk_cnt !== 0)   tb_error("====== SCG1 TEST 2: SMCLK IS NOT STOPPED =====");
113 
`else
114 
      if (smclk_cnt !== 100) tb_error("====== SCG1 TEST 2: SMCLK IS STOPPED =====");
115 
`endif
116 
      smclk_cnt = 0;
117 
 
118 
 
119 
      @(r15==16'h1003);                //---------- PORT2 IRQ TRIAL (EXITING POWER MODE) -------------//
120 
      wkup[3] = 1'b1;
121 
      @(posedge irq_acc[3]);
122 
      aclk_cnt = 0;
123 
      repeat (10) @(posedge mclk);
124 
      smclk_cnt = 0;
125 
      repeat (50) @(posedge mclk);
126 
      if (smclk_cnt !== 50)  tb_error("====== SCG1 TEST 3: SMCLK IS NOT RUNNING DURING IRQ =====");
127 
      smclk_cnt = 0;
128 
      @(r13==16'hbbbb);
129 
      wkup[3] = 1'b0;
130 
 
131 
      @(r15==16'h1004);
132 
      smclk_cnt = 0;
133 
      repeat (50) @(posedge mclk);
134 
      if (smclk_cnt !== 50)  tb_error("====== SCG1 TEST 4: SMCLK IS STILL NOT RUNNING WHEN RETURNING FROM IRQ =====");
135 
      smclk_cnt = 0;
136 
 
137 
 
138 
      @(r15==16'h1005);
139 
      repeat (10)  @(posedge mclk);
140 
      smclk_cnt = 0;
141 
      repeat (100) @(posedge mclk);
142 
`ifdef SCG1_EN
143 
      if (smclk_cnt !== 0)   tb_error("====== SCG1 TEST 5: SMCLK IS NOT STOPPED =====");
144 
`else
145 
      if (smclk_cnt !== 100) tb_error("====== SCG1 TEST 5: SMCLK IS STOPPED =====");
146 
`endif
147 
      smclk_cnt = 0;
148 
 
149 
 
150 
      @(r15==16'h1006);                //---------- PORT1 IRQ TRIAL (STAYING IN POWER MODE) -------------//
151 
      wkup[2] = 1'b1;
152 
      @(posedge irq_acc[2]);
153 
      repeat (10) @(posedge mclk);
154 
      smclk_cnt = 0;
155 
      repeat (50) @(posedge mclk);
156 
      if (smclk_cnt !== 50)  tb_error("====== SCG1 TEST 6: SMCLK IS NOT RUNNING DURING IRQ =====");
157 
      smclk_cnt = 0;
158 
      @(r13==16'haaaa);
159 
      wkup[2] = 1'b0;
160 
 
161 
      @(r15==16'h1007);
162 
      repeat (10)  @(posedge mclk);
163 
      smclk_cnt = 0;
164 
      repeat (50) @(posedge mclk);
165 
`ifdef SCG1_EN
166 
      if (smclk_cnt !== 0)   tb_error("====== SCG1 TEST 7: SMCLK IS NOT STOPPED WHEN RETURNING FROM IRQ =====");
167 
`else
168 
      if (smclk_cnt !== 50)  tb_error("====== SCG1 TEST 7: SMCLK IS STOPPED WHEN RETURNING FROM IRQ =====");
169 
`endif
170 
      smclk_cnt = 0;
171 
 
172 
 
173 
      @(r15==16'h1008);
174 
      repeat (10) @(posedge mclk);
175 
      smclk_cnt = 0;
176 
      repeat (50) @(posedge mclk);
177 
      if (smclk_cnt !== 50)  tb_error("====== SCG1 TEST 8: SMCLK IS NOT RUNNING =====");
178 
      smclk_cnt = 0;
179 
 
180 
 
181 
      // OSCOFF  (<=> R2[5]): turn off LFXT1CLK
182 
      //--------------------------------------------------------
183 
 
184 
      @(r15==16'h2001);
185 
      repeat (10)  @(posedge mclk);
186 
      aclk_cnt = 0;
187 
      repeat (200) @(posedge mclk);
188 
  `ifdef LFXT_DOMAIN
189 
      if (aclk_cnt !== 7)   tb_error("====== OSCOFF TEST 1: ACLK IS NOT RUNNING =====");
190 
  `else
191 
      if (aclk_cnt !== 200) tb_error("====== OSCOFF TEST 1: ACLK IS NOT RUNNING =====");
192 
  `endif
193 
      aclk_cnt = 0;
194 
 
195 
      @(r15==16'h2002);
196 
      repeat (100) @(posedge mclk);
197 
      aclk_cnt = 0;
198 
      repeat (100) @(posedge mclk);
199 
`ifdef OSCOFF_EN
200 
      if (aclk_cnt !== 0)   tb_error("====== OSCOFF TEST 2: ACLK IS NOT STOPPED =====");
201 
`else
202 
      if (aclk_cnt <   3)   tb_error("====== OSCOFF TEST 2: ACLK IS STOPPED =====");
203 
`endif
204 
      aclk_cnt = 0;
205 
 
206 
 
207 
      @(r15==16'h2003);                //---------- PORT2 IRQ TRIAL (EXITING POWER MODE) -------------//
208 
      wkup[3] = 1'b1;
209 
      @(posedge irq_acc[3]);
210 
      repeat (100) @(posedge mclk);
211 
      aclk_cnt = 0;
212 
      repeat (100) @(posedge mclk);
213 
  `ifdef LFXT_DOMAIN
214 
      if (aclk_cnt !== 3)   tb_error("====== OSCOFF TEST 3: ACLK IS NOT RUNNING DURING IRQ =====");
215 
  `else
216 
      if (aclk_cnt !== 100) tb_error("====== OSCOFF TEST 3: ACLK IS NOT RUNNING DURING IRQ =====");
217 
  `endif
218 
      aclk_cnt = 0;
219 
      @(r13==16'hbbbb);
220 
      wkup[3] = 1'b0;
221 
 
222 
      @(r15==16'h2004);
223 
      repeat (100) @(posedge mclk);
224 
      aclk_cnt = 0;
225 
      repeat (100) @(posedge mclk);
226 
  `ifdef LFXT_DOMAIN
227 
      if (aclk_cnt <   3)   tb_error("====== OSCOFF TEST 4: ACLK IS STILL NOT RUNNING WHEN RETURNING FROM IRQ =====");
228 
  `else
229 
      if (aclk_cnt !== 100) tb_error("====== OSCOFF TEST 4: ACLK IS STILL NOT RUNNING WHEN RETURNING FROM IRQ =====");
230 
    `endif
231 
      aclk_cnt = 0;
232 
 
233 
 
234 
      @(r15==16'h2005);
235 
      repeat (100) @(posedge mclk);
236 
      aclk_cnt = 0;
237 
      repeat (100) @(posedge mclk);
238 
`ifdef OSCOFF_EN
239 
      if (aclk_cnt !== 0)   tb_error("====== OSCOFF TEST 5: ACLK IS NOT STOPPED =====");
240 
`else
241 
      if (aclk_cnt <   3)   tb_error("====== OSCOFF TEST 5: ACLK IS STOPPED =====");
242 
`endif
243 
      aclk_cnt = 0;
244 
 
245 
 
246 
      @(r15==16'h2006);                //---------- PORT1 IRQ TRIAL (STAYING IN POWER MODE) -------------//
247 
      wkup[2] = 1'b1;
248 
      @(posedge irq_acc[2]);
249 
      repeat (100) @(posedge mclk);
250 
      aclk_cnt = 0;
251 
      repeat (100) @(posedge mclk);
252 
  `ifdef LFXT_DOMAIN
253 
      if (aclk_cnt !== 3)   tb_error("====== OSCOFF TEST 6: ACLK IS NOT RUNNING DURING IRQ =====");
254 
  `else
255 
      if (aclk_cnt !== 100) tb_error("====== OSCOFF TEST 6: ACLK IS NOT RUNNING DURING IRQ =====");
256 
  `endif
257 
      aclk_cnt = 0;
258 
      @(r13==16'haaaa);
259 
      wkup[2] = 1'b0;
260 
 
261 
      @(r15==16'h2007);
262 
      repeat (100) @(posedge mclk);
263 
      aclk_cnt = 0;
264 
      repeat (100) @(posedge mclk);
265 
`ifdef OSCOFF_EN
266 
      if (aclk_cnt !== 0)   tb_error("====== OSCOFF TEST 7: ACLK IS NOT STOPPED WHEN RETURNING FROM IRQ =====");
267 
`else
268 
      if (aclk_cnt <   3)   tb_error("====== OSCOFF TEST 7: ACLK IS STOPPED WHEN RETURNING FROM IRQ =====");
269 
`endif
270 
      aclk_cnt = 0;
271 
 
272 
 
273 
      @(r15==16'h2008);
274 
      repeat (100) @(posedge mclk);
275 
      aclk_cnt = 0;
276 
      repeat (100) @(posedge mclk);
277 
  `ifdef LFXT_DOMAIN
278 
      if (aclk_cnt !== 3)   tb_error("====== OSCOFF TEST 8: ACLK IS NOT RUNNING =====");
279 
  `else
280 
      if (aclk_cnt !== 100) tb_error("====== OSCOFF TEST 8: ACLK IS NOT RUNNING =====");
281 
  `endif
282 
      aclk_cnt = 0;
283 
 
284 
 
285 
      // CPUOFF  (<=> R2[4]): turn off CPU
286 
      //--------------------------------------------------------
287 
 
288 
      @(r15==16'h3001);
289 
      repeat (10) @(negedge dco_clk);
290 
      mclk_cnt  = 0;
291 
      repeat (80) @(negedge dco_clk);
292 
      if (mclk_cnt !== 80) tb_error("====== CPUOFF TEST 1: CPU IS NOT RUNNING =====");
293 
 
294 
      @(r15==16'h3002);
295 
      repeat (10) @(negedge dco_clk);
296 
      mclk_cnt  = 0;
297 
      repeat (80) @(negedge dco_clk);
298 
      if (mclk_cnt !== 0)  tb_error("====== CPUOFF TEST 2: CPU IS NOT STOPPED =====");
299 
 
300 
      @(posedge dco_clk);                //---------- PORT1 IRQ TRIAL (STAYING IN POWER MODE) -------------//
301 
      wkup[2] = 1'b1;
302 
      @(posedge irq_acc[2]);
303 
      repeat(10)  @(negedge dco_clk);
304 
      mclk_cnt  = 0;
305 
      repeat (80) @(negedge dco_clk);
306 
      if (mclk_cnt !== 80) tb_error("====== CPUOFF TEST 3: CPU IS NOT RUNNING DURING IRQ (PORT 1) =====");
307 
      mclk_cnt = 0;
308 
      @(r13==16'haaaa);
309 
      wkup[2] = 1'b0;
310 
 
311 
      @(r1==(`PER_SIZE+16'h0050));
312 
      repeat (10) @(negedge dco_clk);
313 
      mclk_cnt  = 0;
314 
      repeat (80) @(negedge dco_clk);
315 
      if (mclk_cnt  !== 0) tb_error("====== CPUOFF TEST 4: CPU IS NOT STOPPED AFTER IRQ =====");
316 
 
317 
 
318 
                                         //---------- PORT2 IRQ TRIAL (EXITING POWER MODE) -------------//
319 
      wkup[3] = 1'b1;
320 
      @(posedge irq_acc[3]);
321 
      repeat (10) @(posedge dco_clk);
322 
      mclk_cnt = 0;
323 
      repeat (80) @(posedge dco_clk);
324 
      if (mclk_cnt !== 80)  tb_error("====== CPUOFF TEST 5: CPU IS NOT RUNNING DURING IRQ =====");
325 
      mclk_cnt = 0;
326 
      @(r13==16'hbbbb);
327 
      wkup[3] = 1'b0;
328 
 
329 
      @(r1==(`PER_SIZE+16'h0050));
330 
      repeat (10) @(negedge dco_clk);
331 
      mclk_cnt  = 0;
332 
      repeat (80) @(negedge dco_clk);
333 
      if (mclk_cnt  !== 80) tb_error("====== CPUOFF TEST 6: CPU IS NOT RUNNING AFTER IRQ =====");
334 
 
335 
 
336 
 
337 
      @(r15==16'h3003);
338 
      repeat (10) @(posedge dco_clk);
339 
      mclk_cnt = 0;
340 
      repeat (80) @(posedge dco_clk);
341 
      if (mclk_cnt !== 80)  tb_error("====== CPUOFF TEST 7: CPU IS STILL NOT RUNNING WHEN RETURNING FROM IRQ =====");
342 
      mclk_cnt = 0;
343 
 
344 
 
345 
 
346 
      // SCG0 (<=> R2[6]): turn off DCO oscillator
347 
      //--------------------------------------------------------
348 
 
349 
      @(r15==16'h4001);
350 
      #(10*50);
351 
      dco_clk_cnt  = 0;
352 
      #(80*50);
353 
      if (dco_clk_cnt !== 80) tb_error("====== SCG0 TEST 1: DCO IS NOT RUNNING =====");
354 
 
355 
      @(r15==16'h4002);
356 
      #(10*50);
357 
      dco_clk_cnt  = 0;
358 
      #(80*50);
359 
      if (dco_clk_cnt !== 0)  tb_error("====== SCG0 TEST 2: DCO IS NOT STOPPED =====");
360 
 
361 
 
362 
      #(1*50);                           //---------- PORT1 IRQ TRIAL (STAYING IN POWER MODE) -------------//
363 
      wkup[2] = 1'b1;
364 
      @(posedge irq_acc[2]);
365 
      #(10*50);
366 
      dco_clk_cnt  = 0;
367 
      #(80*50);
368 
      if (dco_clk_cnt !== 80) tb_error("====== SCG0 TEST 3: DCO IS NOT RUNNING DURING IRQ (PORT 1) =====");
369 
      dco_clk_cnt = 0;
370 
      @(r13==16'haaaa);
371 
      wkup[2] = 1'b0;
372 
 
373 
      #(10*50);
374 
      dco_clk_cnt  = 0;
375 
      #(80*50);
376 
      if (dco_clk_cnt  !== 0) tb_error("====== SCG0 TEST 4: DCO IS NOT STOPPED AFTER IRQ =====");
377 
 
378 
 
379 
                                         //---------- PORT2 IRQ TRIAL (EXITING POWER MODE) -------------//
380 
      wkup[3] = 1'b1;
381 
      @(posedge irq_acc[3]);
382 
      #(10*50);
383 
      dco_clk_cnt = 0;
384 
      #(80*50);
385 
      if (dco_clk_cnt !== 80)  tb_error("====== SCG0 TEST 5: DCO IS NOT RUNNING DURING IRQ =====");
386 
      dco_clk_cnt = 0;
387 
      @(r13==16'hbbbb);
388 
      wkup[3] = 1'b0;
389 
 
390 
      #(10*50);
391 
      dco_clk_cnt  = 0;
392 
      #(80*50);
393 
      if (dco_clk_cnt  !== 80) tb_error("====== SCG0 TEST 6: DCO IS NOT RUNNING AFTER IRQ =====");
394 
 
395 
 
396 
 
397 
      @(r15==16'h4003);
398 
      #(10*50);
399 
      dco_clk_cnt = 0;
400 
      #(80*50);
401 
      if (dco_clk_cnt !== 80)  tb_error("====== SCG0 TEST 7: DCO IS STILL NOT RUNNING WHEN RETURNING FROM IRQ =====");
402 
      dco_clk_cnt = 0;
403 
 
404 
 
405 
 
406 
`else
407 
      $display(" ===============================================");
408 
      $display("|               SIMULATION SKIPPED              |");
409 
      $display("|   (this test is not supported in FPGA mode)   |");
410 
      $display(" ===============================================");
411 
      $finish;
412 
`endif
413 
 
414 
      stimulus_done = 1;
415 
   end
416 
 

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