1 00:00:00,720 --> 00:00:01,820 Hello, welcome back. 2 00:00:01,830 --> 00:00:08,310 And this lesson, we go in to see how to work with software timers, I'm going to make a copy of the 3 00:00:08,310 --> 00:00:11,850 Gatekeeper Task Project and paste it over here. 4 00:00:12,450 --> 00:00:15,720 And I'll call this working with software time as. 5 00:00:28,360 --> 00:00:29,700 They copy over here. 6 00:00:33,340 --> 00:00:36,610 Then expand this and then call. 7 00:00:37,890 --> 00:00:40,630 Then I'll look at it, I may not see fall over here. 8 00:00:41,170 --> 00:00:44,340 OK, so we're going to create two new tasks. 9 00:00:44,350 --> 00:00:49,770 So I'm going to clean all the artists related code from the project. 10 00:00:50,870 --> 00:00:57,070 OK, I've cleaned all the tasks we created, deletes the task functions as well. 11 00:00:59,720 --> 00:01:00,650 Of deleted them. 12 00:01:02,580 --> 00:01:03,240 And. 13 00:01:04,410 --> 00:01:05,930 Delete them from here as well. 14 00:01:09,700 --> 00:01:11,520 So we just have our project. 15 00:01:11,570 --> 00:01:16,950 Well, no more projects before we use time as we need to include time as to our projects. 16 00:01:16,960 --> 00:01:22,300 So I'll go to our Simms's always thought each fall by right clicking an open declaration. 17 00:01:23,020 --> 00:01:31,060 And over here I'm going to include time in storage so I can simply copy one of these and paste over 18 00:01:31,060 --> 00:01:32,380 here and change this word. 19 00:01:34,980 --> 00:01:35,760 To Taimur. 20 00:01:36,600 --> 00:01:41,450 Well, time is plural, it is required click here to be able to see how we are looking. 21 00:01:45,170 --> 00:01:51,950 OK, we're looking good, and then I'll come back here to our main function, so I'm going to declare 22 00:01:51,950 --> 00:01:52,820 the time up period. 23 00:01:52,820 --> 00:01:58,650 We're going to experiment with both the periodic timer and the one short timer. 24 00:01:59,390 --> 00:02:00,830 OK, I'll delete this. 25 00:02:00,830 --> 00:02:02,690 Excuse Hondo here. 26 00:02:02,690 --> 00:02:05,990 We don't need this, so we're going to have to puritz. 27 00:02:07,390 --> 00:02:07,960 OK. 28 00:02:09,630 --> 00:02:17,820 So we define in this we're going to see the one short time period should be four thousand. 29 00:02:18,780 --> 00:02:19,680 Milliseconds. 30 00:02:21,780 --> 00:02:25,010 I cuts this by mistake, sorry about that. 31 00:02:26,070 --> 00:02:26,520 So. 32 00:02:27,670 --> 00:02:33,070 The Winshaw time either period should be four thousand milliseconds because we are doing PDM, Static's 33 00:02:33,250 --> 00:02:37,620 and then our periodic timer issued whuppin every 500 Ms. 34 00:02:38,170 --> 00:02:42,490 OK, so that's the period to now. 35 00:02:42,490 --> 00:02:50,230 What we're going to do is we going to create a handle for our timer or our time is because we have two 36 00:02:50,230 --> 00:02:50,730 of them. 37 00:02:50,740 --> 00:02:57,090 We're going to have a handle for the want one short time as well as our periodic auto reload timer. 38 00:02:57,400 --> 00:03:04,690 And also we're going to create a variable to hold our time as that is whether the timer is started or 39 00:03:04,690 --> 00:03:05,050 not. 40 00:03:06,320 --> 00:03:14,060 We can start our variable in the base type, so we see a base type over here X time or one started, 41 00:03:14,060 --> 00:03:16,120 X time or two started OK. 42 00:03:16,700 --> 00:03:19,930 Once that is done, we're going to create over time to create over time. 43 00:03:20,120 --> 00:03:22,730 We use the X time to create function. 44 00:03:23,240 --> 00:03:29,350 The first argument of this function is a string just to let us know the name of this timer. 45 00:03:29,810 --> 00:03:32,510 The second argument is the the period. 46 00:03:32,990 --> 00:03:38,860 And the third argument is whether we want to said this as a one shot timer or not. 47 00:03:39,680 --> 00:03:42,680 And then the last after that, there's an argument. 48 00:03:43,840 --> 00:03:51,040 Where we can place a variable to start a timer timer ID, and then after that, the argument is. 49 00:03:52,230 --> 00:03:59,910 The callback function for the timer, so I'll come over here, we first got our first argument as the 50 00:03:59,910 --> 00:04:02,020 time we call in this one one shot. 51 00:04:02,550 --> 00:04:04,740 The second argument is the time up period. 52 00:04:07,420 --> 00:04:13,240 So the period before it is defined at the top, we gave it this value, but it wasn't your time. 53 00:04:13,840 --> 00:04:24,400 OK, so the next argument after this is the is whether we want this time to be a one short timer or 54 00:04:24,400 --> 00:04:29,020 an auto reload timer because we want this to be one shot, we're going to pass false over here. 55 00:04:29,380 --> 00:04:32,560 The next argument is the time of ID. 56 00:04:32,560 --> 00:04:33,850 We're not using time ID. 57 00:04:33,850 --> 00:04:34,570 So I'm going to pause. 58 00:04:34,570 --> 00:04:39,100 You hear the last argument is the callback function for the time. 59 00:04:39,100 --> 00:04:41,770 I just like our tasks of task functions. 60 00:04:41,990 --> 00:04:43,720 Our time is of callback functions. 61 00:04:43,900 --> 00:04:48,300 We're going to create a callback function called Pravy one short time, a callback. 62 00:04:48,310 --> 00:04:51,190 So I'm just put in the name here, OK? 63 00:04:56,350 --> 00:05:03,650 And of course, this time I will return to handle which we are storing in our X time X one short time 64 00:05:03,710 --> 00:05:04,090 handle. 65 00:05:04,390 --> 00:05:05,530 So I'm going to copy this. 66 00:05:06,590 --> 00:05:09,830 And then we create the auto reload version. 67 00:05:10,840 --> 00:05:18,460 So over here, we said this is going to be our auto reload or periodic timer, I'll call this auto reload 68 00:05:19,810 --> 00:05:23,580 and then the period for our auto reload we defined up here. 69 00:05:23,860 --> 00:05:33,040 So I copy this period and this time it's asking whether we want to want to make it one shot we want. 70 00:05:34,660 --> 00:05:41,260 So to phrase this properly, this parameter asks whether you want it to be auto reload or not. 71 00:05:42,040 --> 00:05:46,870 So over here, when we said force, we said we don't want auto reload. 72 00:05:46,880 --> 00:05:52,540 And since the all the other option is one shot, if you said to force, you are going to have a one 73 00:05:52,540 --> 00:05:53,260 shot timer. 74 00:05:53,530 --> 00:05:55,510 So over here we want auto reload. 75 00:05:55,520 --> 00:05:58,390 So we're going to set it to true this parameter. 76 00:06:01,300 --> 00:06:08,470 OK, and then after that, we have this argument, which is for the time, a Honda, and then we have 77 00:06:08,570 --> 00:06:16,420 this disco back where we have to put a TAMAKO box over here, we're going to use a kolba called PSV. 78 00:06:17,840 --> 00:06:22,670 Pravy, we can give it a name, auto reload time I Kobuk Pravy. 79 00:06:27,650 --> 00:06:32,300 Auto reload time, I call back like this. 80 00:06:33,220 --> 00:06:34,160 OK, so. 81 00:06:35,810 --> 00:06:42,320 Once we are done, we've created our time is now we have to start our time is. 82 00:06:43,840 --> 00:06:49,840 So to start the timer, we simply use the the time I start to function to do the. 83 00:06:52,170 --> 00:06:53,130 My computer does. 84 00:06:54,600 --> 00:06:59,460 I pressed a single key and then it's duplicated over 50 times. 85 00:07:02,350 --> 00:07:08,800 It could be that my computer is getting slow because I've turned off the fun so that it doesn't disturb 86 00:07:08,800 --> 00:07:17,470 the video, because when you're recording for long and your computer phone is on, you hear the the 87 00:07:17,470 --> 00:07:18,520 sound of the fun. 88 00:07:22,760 --> 00:07:24,650 OK, so the task function. 89 00:07:27,110 --> 00:07:30,470 All the the callback function for our time, as this one is called. 90 00:07:30,740 --> 00:07:33,890 So what we want to do is get the current time and print. 91 00:07:34,310 --> 00:07:37,540 We can get the time using the get count. 92 00:07:38,300 --> 00:07:42,470 So I'm going to create a local variable here called X Time Now. 93 00:07:44,130 --> 00:07:51,480 And then I'm going to get it current time and store it in this variable, so to get a time, we simply 94 00:07:51,480 --> 00:07:51,840 see. 95 00:07:52,810 --> 00:07:55,000 Get take count. 96 00:07:58,340 --> 00:08:05,840 So I obtain that and storage in this very well, and once we've done that, then we can go ahead to 97 00:08:05,840 --> 00:08:08,060 print this using our print. 98 00:08:09,270 --> 00:08:14,720 OK, so remember, Tamako back functions are different from our task functions. 99 00:08:15,290 --> 00:08:17,650 There shouldn't be an infinite loop here. 100 00:08:17,660 --> 00:08:18,860 We don't have it. 101 00:08:19,160 --> 00:08:21,950 If it's not, we don't have is not an optional thing. 102 00:08:22,100 --> 00:08:24,770 We we must make sure we don't put a while. 103 00:08:24,770 --> 00:08:25,600 One loop here. 104 00:08:26,210 --> 00:08:31,820 This is a callback function is supposed to run to completion his thoughts and then it completes. 105 00:08:32,360 --> 00:08:34,760 There's no one here, OK. 106 00:08:35,820 --> 00:08:37,020 So this is the. 107 00:08:38,650 --> 00:08:40,510 The Kobuk for our. 108 00:08:43,260 --> 00:08:50,430 One short timer, so a similar one for our auto reload timer is simply going to print the time just 109 00:08:50,430 --> 00:08:51,410 like we've done above. 110 00:08:51,810 --> 00:08:56,430 So we have P RV or to reload the time I call back, it gets the. 111 00:08:57,650 --> 00:09:00,650 Take account and then print it like this. 112 00:09:01,250 --> 00:09:05,720 OK, so once I've done this, I'm going to expose the prototypes. 113 00:09:05,720 --> 00:09:06,470 I'll copy this. 114 00:09:07,250 --> 00:09:09,310 I'll bring this to the top over here. 115 00:09:10,710 --> 00:09:15,390 And then I'll come down to get the auto reload. 116 00:09:17,060 --> 00:09:17,870 I'll this. 117 00:09:20,140 --> 00:09:21,820 And then put this over here. 118 00:09:22,890 --> 00:09:25,750 OK, let's see what we have. 119 00:09:25,990 --> 00:09:27,130 Click over here to build. 120 00:09:31,680 --> 00:09:34,590 We have two errors, what does A, C, P, R, v? 121 00:09:35,850 --> 00:09:36,780 Auto reload. 122 00:09:37,140 --> 00:09:46,020 OK, there's an anomaly here, I forgot the word or the letter T over here, so I'll click here to build. 123 00:09:50,130 --> 00:09:50,790 It's built in. 124 00:09:52,920 --> 00:09:54,390 OK, Canaro. 125 00:09:55,360 --> 00:09:56,130 And, um. 126 00:09:59,090 --> 00:10:01,790 We can right click over here. 127 00:10:02,540 --> 00:10:07,610 And run us estimate that it's you select this twenty three. 128 00:10:11,280 --> 00:10:12,660 And then I'll say, OK. 129 00:10:20,620 --> 00:10:21,070 OK. 130 00:10:22,490 --> 00:10:25,180 It's still working, so standard verified. 131 00:10:25,210 --> 00:10:28,240 OK, let's go to real time to see what we have. 132 00:10:29,540 --> 00:10:30,260 Here we are. 133 00:10:32,550 --> 00:10:36,710 I'm going to clear this up, I'm going to open our port again. 134 00:10:41,010 --> 00:10:43,140 Real time, it's not responding. 135 00:10:47,360 --> 00:10:50,340 OK, I'm going to close this in open again. 136 00:10:51,890 --> 00:10:52,590 Here we are. 137 00:10:53,330 --> 00:10:58,310 So like this in port, so I tell poetry to hear. 138 00:10:59,440 --> 00:11:01,690 And then this is how port. 139 00:11:03,820 --> 00:11:06,040 OK, still not responded. 140 00:11:06,490 --> 00:11:15,190 OK, now let's see where we could have an anomaly, we came over here, we created two times. 141 00:11:16,340 --> 00:11:22,010 And they've got a callback function as we started our scheduler, we didn't forget that. 142 00:11:23,930 --> 00:11:26,930 Did we start a time is the next time I start? 143 00:11:28,140 --> 00:11:30,000 We started both time as. 144 00:11:34,350 --> 00:11:40,680 Let's inspect our code, so we came over here, we created our timer, we stored the handle, the Winshaw 145 00:11:40,680 --> 00:11:44,680 timer here and over here, we created the auto reload. 146 00:11:44,730 --> 00:11:48,200 OK, but we stored the auto reload and one short handle. 147 00:11:48,660 --> 00:11:50,240 OK, this may be creating an error. 148 00:11:50,610 --> 00:11:54,000 So our our program is probably crushing around here. 149 00:11:54,750 --> 00:12:00,110 Um, so of course we have to change this because we made a copy of this one. 150 00:12:00,540 --> 00:12:04,020 We or I thought to change this the handle. 151 00:12:04,470 --> 00:12:09,420 So the auto reload will be stored in the auto reload handle over here. 152 00:12:09,750 --> 00:12:12,930 OK, let's run and see if this is what was causing us the issue. 153 00:12:13,710 --> 00:12:15,690 Click over here to build its Beurden. 154 00:12:16,900 --> 00:12:20,110 And it's done building, I'll click here to run. 155 00:12:21,540 --> 00:12:22,200 If I hear. 156 00:12:24,600 --> 00:12:27,180 And hoping to see. 157 00:12:28,630 --> 00:12:29,980 Eau Claire rootin. 158 00:12:33,330 --> 00:12:35,190 Waiting for the power connection. 159 00:12:41,950 --> 00:12:43,290 OK, there we go. 160 00:12:44,800 --> 00:12:47,200 Oh, we can see our timer running. 161 00:12:48,250 --> 00:12:56,560 OK, I'm going to post this right, we see that one short time, OK, and once that's. 162 00:12:57,700 --> 00:13:04,420 This time period, four thousand times, but we see that every 500 times auto reload time. 163 00:13:06,200 --> 00:13:13,100 Executed callback such that we have six thousand five hundred seven thousand seven thousand five hundred 164 00:13:13,100 --> 00:13:19,820 eight thousand, so it's working as expected, because this this is the period we defined that the author 165 00:13:19,820 --> 00:13:26,870 reload timer is 500 times every 500 M is issued execute its callback function, whereas we want the 166 00:13:26,870 --> 00:13:28,700 Winshaw time to execute. 167 00:13:28,700 --> 00:13:36,620 This was issued execute four thousand milliseconds after we started and that's what occurred over here. 168 00:13:37,790 --> 00:13:44,480 OK, so this order is with regards to our time is I'll see in the next lesson of a nice day.