<
From version < 3.1 >
edited by gjo
on 2013/07/04 11:51
To version < 4.1 >
edited by gjo
on 2013/07/04 12:07
>
Change comment: There is no comment for this version

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... ... @@ -336,17 +336,38 @@
336 336  
337 337  The simulation process (starts at line 79) is generated using the core ESO file. How the simulation process is generated will be schown at the follwing example:
338 338  
339 -|=(((
339 +|=(% colspan="1" %)(% colspan="1" %)
340 +(((
341 +SCL
342 +)))|=(((
340 340  ESO trace
341 341  )))|=(% colspan="1" %)(% colspan="1" %)
342 342  (((
343 343  Testbench
344 344  )))
345 -|(((
348 +|(% colspan="1" %)(% colspan="1" %)
349 +(((
350 +{{code linenumbers="true" language="java"}}
351 +module test
352 +input A ;
353 +input B : boolean = false;
354 +input B_value : integer = 0;
355 +input C :boolean = false;
356 +input C_value :boolean = false;
357 +output D;
358 +output E : boolean = false;
359 +output E_value : integer = 5;
360 +output F : boolean = false;
361 +output F_value : boolean = false;
362 +{
363 + //pause;
364 +}
365 +{{/code}}
366 +)))|(((
346 346  {{code linenumbers="true" language="perl"}}
347 347  !reset;
348 -A B(5) C(false)
349 -%Output: D E(3) F(false)
369 +A C(false)
370 +%Output: D F(false)
350 350  ;
351 351  {{/code}}
352 352  
... ... @@ -359,12 +359,6 @@
359 359  
360 360  )))|(% colspan="1" %)(% colspan="1" %)
361 361  (((
362 -
363 -
364 -
365 -
366 -
367 -
368 368  {{code linenumbers="true" language="java"}}
369 369  A <= true;
370 370  B <= false;
... ... @@ -384,20 +384,32 @@
384 384   report "1st trace: 1st tick: F_value should have been false"
385 385   severity ERROR;
386 386  {{/code}}
402 +)))
387 387  
388 -
404 +**Set inputs**
389 389  
390 -
406 +Line 2 and 3 in the testbench are setting the inpute. All (!) inputs must be set!
391 391  
392 -
393 -)))
408 +* Pure signal which are present are set to the according value, e.g. //A<=true;//
409 +* Valued signals which are present are set to thier according value e.g. //C_value <= false;// and set present //B<=true;//
410 +* ABSENT values (not listed in ESO files inputs) mus be set absent
411 +** pure singals (not listeg) e.g. K <= false
412 +** valued signals e.g. //B <= false//, only the present value will be set, the valued signal is not touched
394 394  
395 -Line 2 and 3 in the testbench are setting the inpute. All (!) inputs must be set! Signal which are present are set to the according value
414 +**Wait for the tick to pass by**
396 396  
397 -
416 +The code //wait for tick_period;// waits for one tick, so the Hardware can compute the output values.
398 398  
399 -
418 +**Test Outputs**
400 400  
420 +After the tick has passed by we must check if the hardware computes the correct outputs. This is done by assertions. Every (!) output must tested!
421 +
422 +* Pure signals: Test the pure output signal according to the current ESO tick, if listed, e.g. //assert( D = true )//. If it is not specified in the trace test for absence,
423 +* Valued signals: For valued signals that are specified in the current ESO tick test the present singal and the valued signal, e.g. //assert( F = true )// and //assert( F_value = false)//
424 +* Valued signals which are not listed in the current tick in the ESO file: test only the present flag for absence (We cannot say anything about absent valued signals)
425 +
426 +If an assertion failed the corresponding error will be printed to a log file. The severity level tells the simulator to go on with the simulation altough an error acoored.
427 +
401 401  
402 402  
403 403  
Confluence.Code.ConfluencePageClass[0]
Id
... ... @@ -1,1 +1,1 @@
1 -7111244
1 +7111257
URL
... ... @@ -1,1 +1,1 @@
1 -https://rtsys.informatik.uni-kiel.de/confluence//wiki/spaces/KIELER/pages/7111244/ESO to VHDL Testbench
1 +https://rtsys.informatik.uni-kiel.de/confluence//wiki/spaces/KIELER/pages/7111257/ESO to VHDL Testbench