WEBVTT 00:00.060 --> 00:05.560 We discuss test bench for a while when we are discussing about the fundamentals of aviation. 00:05.850 --> 00:13.620 Now we'll spend some time discussing about the things that are specifically important when you write 00:13.620 --> 00:13.890 this. 00:14.230 --> 00:21.300 OK, so this is the money that will be using as a reference for which will be writing the various disciplines 00:21.600 --> 00:23.270 and building up off of it. 00:23.460 --> 00:28.660 OK, so what the school is doing is it takes to input for vector time. 00:28.910 --> 00:34.950 OK, so that basically means it is it will only be working on one entity. 00:35.270 --> 00:43.020 OK, I'll say it and then I'll also I'll say OK, and we have utilized our operator to perform an activity. 00:43.380 --> 00:49.980 And finally we have a result onto the first thing that we do is to include all the libraries that we 00:49.980 --> 00:52.040 have in our design and test. 00:52.150 --> 00:57.880 OK, so this is the code for which we are writing a test which so this becomes Dudi or designing the 00:57.880 --> 00:58.190 test. 00:58.200 --> 01:04.050 OK, so first important thing that you will be doing is you can create a new source if you want. 01:04.350 --> 01:04.780 OK. 01:04.860 --> 01:06.290 Specifically a simulation. 01:06.300 --> 01:11.600 So, so you can just start writing it as in school just after you finish your architecture. 01:11.820 --> 01:19.770 So any behavioral is a point where we have finished our duty so that we can leave some blank spaces 01:19.770 --> 01:21.900 and we can start writing the speech. 01:22.530 --> 01:30.870 So first thing that we always do while we start writing the test is to include all the libraries that 01:30.870 --> 01:33.560 are presented, the design and the test, OK? 01:33.810 --> 01:35.640 So you'll be noticing that those are the two. 01:37.070 --> 01:45.400 Header files or and header libraries are we can see the eight years that we have included for developing 01:45.410 --> 01:45.830 a design. 01:45.860 --> 01:51.140 So without thought much, what we'll do is we'll just copy this to Steve Wynn and we'll just be sitting 01:51.140 --> 01:51.560 with you. 01:51.760 --> 01:57.710 OK, so there may be a scenario that you are working on only to cooperation and standard and logic. 01:58.220 --> 02:02.210 So there may be multiple files or libraries that you require. 02:02.240 --> 02:08.480 OK, so first important thing that you'll always be doing is while you write it as venture code is to 02:08.480 --> 02:14.860 include all the libraries that you have using the duty inside the dustbin. 02:15.230 --> 02:17.710 OK, so this is the first thing that will be doing. 02:17.810 --> 02:19.640 Then we proceed with an entity. 02:19.850 --> 02:23.930 OK, we'll just give a name to an entity that it just name and TV. 02:25.580 --> 02:33.290 It's and then we learn and see that the neme that you give to a this bench should not be matching to 02:33.290 --> 02:34.620 design and testing it. 02:34.670 --> 02:40.510 And usually what we do is, for example, we have used the name for our deal to stop. 02:40.730 --> 02:45.830 So we'll just use stop DB as the name for our test bench. 02:45.890 --> 02:53.000 And again, this becomes once you get that habit of writing tests like this, you can easily recognize 02:53.000 --> 02:55.690 this test in school for a specific model. 02:55.930 --> 03:02.790 OK, the second important point is the entity or the test. 03:02.830 --> 03:05.050 Ventracor do not have any iReports. 03:05.660 --> 03:08.780 So this is the second important point to remember. 03:08.950 --> 03:11.990 OK, in fact what we'll do is we'll just be. 03:13.520 --> 03:19.040 Noting down all the checkpoints that we are discussing, so later on, you will not be finding any problem 03:19.040 --> 03:20.180 in remembering the steps. 03:20.720 --> 03:22.670 So the first point is you. 03:23.750 --> 03:24.770 All the. 03:26.070 --> 03:27.180 Library's. 03:28.820 --> 03:29.600 Preysing. 03:31.020 --> 03:34.830 In the debate, this is the first step. 03:35.070 --> 03:37.920 OK, the second step is to. 03:39.580 --> 03:40.300 Do not. 03:41.250 --> 03:45.510 And any both to dispense. 03:46.150 --> 03:46.540 OK. 03:48.660 --> 03:51.010 And then we proceed with an architecture. 03:51.480 --> 04:03.510 So architecture and the name that will be giving is top DB2, off top TV is OK then will begin and finally 04:03.510 --> 04:04.500 we'll just take. 04:05.700 --> 04:06.730 Our architecture. 04:06.780 --> 04:14.790 OK, so the name that we have in place to now here, since we do not have any in reports, will be declaring 04:14.790 --> 04:22.980 an equal signal of same size with the size that we have for opposing the deal will be finding inside 04:23.040 --> 04:23.400 duty. 04:23.430 --> 04:33.150 We have A B and why three put an open book and we also have a direction and who we need to exactly choose 04:33.150 --> 04:36.150 to type that we have used to do. 04:36.580 --> 04:45.380 So the type should be better and less correct for A and B of size for it and for why it should be vector 04:45.480 --> 04:46.010 of size. 04:46.130 --> 04:46.670 All right. 04:46.950 --> 04:53.430 So we'll prosit and signal we declare between architecture and the connection, we'll just signal A 04:53.460 --> 04:54.720 and B, right. 04:56.110 --> 05:04.410 Then signal do not have any direction, so that underscore vector, then we are stranded on this cold 05:04.420 --> 05:05.050 logic. 05:06.920 --> 05:10.370 It should be of size for bitrate, so three down to zero. 05:10.940 --> 05:11.670 OK. 05:13.160 --> 05:14.810 Then the next step is. 05:17.320 --> 05:19.990 To declare a signal for violence. 05:20.290 --> 05:23.010 OK, so why that vector again? 05:24.570 --> 05:33.630 And three down to see, OK, again, remember that the size and type are exactly equivalent to the size 05:33.930 --> 05:37.980 and type that we have used for an input and output inside. 05:38.640 --> 05:44.790 OK, so here the third check point should be that you use C. 05:45.760 --> 05:51.490 DeLay for input and output. 05:53.050 --> 05:55.740 Pulled equivalent signals. 05:55.810 --> 06:03.110 OK, so whatever signal that you use for input and hope to the issue will have the same data, OK, 06:03.530 --> 06:11.680 and the next step is the signal which represent an input put in a duty should be initialized to someone 06:12.280 --> 06:17.250 here and B, represent or equivalent signal for an important input. 06:17.480 --> 06:22.230 So we'll just be using a variable assignment operator and will be initializing. 06:22.270 --> 06:30.490 OK, so this is multi bit, but so we'll be using a double code that just initialize it to see. 06:34.590 --> 06:41.560 So this is an important step, that is whenever you have declared all the signals for all the input 06:42.380 --> 06:43.910 that you have entitled is a. 06:45.180 --> 06:51.520 Select all the input and signal representing an input put and then initialize them to someone. 06:51.550 --> 06:56.530 So usually we initialize them to zero or it may vary depending on the requirements. 06:57.820 --> 07:01.000 So this completes our fourth step, which is. 07:02.700 --> 07:03.720 Initializing. 07:08.350 --> 07:09.010 Input. 07:10.490 --> 07:13.250 Signal a signal representing. 07:14.420 --> 07:17.780 Input to seed or. 07:19.050 --> 07:22.160 User specific value. 07:22.500 --> 07:28.860 OK, so or any other specific answer, we'll just mention any other specific value. 07:29.070 --> 07:30.150 Now, this is mandated. 07:30.480 --> 07:34.290 You cannot just left and put signals blank. 07:36.940 --> 07:43.310 But again, for an output signal representing our output, they should not be initialized to anyone. 07:43.340 --> 07:45.290 So you keep them as OK. 07:45.590 --> 07:50.330 So this completes our Fewster, then we perform the mapping of a signal. 07:51.320 --> 07:56.930 To deal with this basically signify that we'll be connecting our signal to the respective input around 07:56.980 --> 07:57.610 purported. 07:58.880 --> 08:04.610 In the same day, so we start with an insurgency, so they just start an instance named Stephen. 08:05.980 --> 08:08.560 OK, so this is purely a user defined name. 08:08.970 --> 08:13.930 OK, so to distinguish between the different instances, if you have a multiple instance, so to have 08:13.930 --> 08:18.710 a clear distinction between that, we provide a specific name for that instance. 08:18.730 --> 08:26.380 So here we have used the even as an instance name for the component that we are using. 08:26.440 --> 08:27.580 OK, so. 08:28.670 --> 08:31.460 You'll be noticing that we have that report. 08:31.880 --> 08:37.250 OK, so be an invite, so we'll start and the module name is stop, right. 08:37.260 --> 08:42.190 So here will be just mentioning top automatic language, Gqiba. 08:42.530 --> 08:50.580 And then we want E should be connected to any V should be connected to be and why should be connected 08:50.580 --> 08:50.750 to. 08:51.080 --> 08:53.780 OK, so this is an explicit way of connecting a book. 08:54.180 --> 09:00.140 Now here you will be finding an error because we are using a component without including the component 09:00.140 --> 09:01.500 inside an architecture. 09:01.520 --> 09:01.850 Right. 09:04.660 --> 09:06.880 So including a component is very simple. 09:06.940 --> 09:12.760 OK, so we already know that between an architecture and begin, we can declare three or four things. 09:12.760 --> 09:18.210 So we can either declare the component, we can declare the signal, we can declare enumerated due to. 09:18.630 --> 09:20.820 So you can also declare a memory inventory. 09:21.130 --> 09:26.140 So we just copy from the name of identity or name of our duty. 09:26.170 --> 09:29.380 So from top to and then we'll just copy this. 09:29.590 --> 09:31.840 OK, we'll add a keyword component. 09:32.910 --> 09:38.850 And then we'll just be whatever we have coffee, and since we have started a company, we just changed 09:38.850 --> 09:39.430 our company. 09:39.720 --> 09:41.640 So this is the easiest way to. 09:42.950 --> 09:51.790 I guess you just go ahead, start copying from the name of your entity or you and then capitaland and 09:51.790 --> 09:53.320 finally you are a company. 09:53.380 --> 09:58.150 OK, so this is how you declare a company and then you'll be finding immediately the right. 09:59.110 --> 10:00.760 So no duty. 10:02.250 --> 10:09.180 The signal that the president inside our are connected to the design and one important check here is 10:09.180 --> 10:13.000 you'll be finding that now here we have see. 10:13.650 --> 10:17.360 So for that reason, you'll be finally be able to see on this single source. 10:18.180 --> 10:25.640 So if you just say, well, OK, now you'll be noticing that there will be two suits and the top DB 10:25.650 --> 10:32.010 will automatically become our model and we have the duty as a doctor. 10:32.340 --> 10:32.470 OK. 10:32.580 --> 10:39.240 So when you see that hierarchy, that basically means you have correctly follow all the checkpoint that 10:39.240 --> 10:41.740 you have discussed Tuesday night. 10:42.210 --> 10:47.490 Now, what we'll do is we'll try to understand various views of. 10:49.650 --> 10:57.890 Applying a stimulus to do so, you have an idea how you can generate or stimulate.