1 00:00:00,680 --> 00:00:01,850 Hello, welcome back. 2 00:00:01,880 --> 00:00:10,190 So let's continue, I've just come over here and create a new file, right click menu item at DOT five 3 00:00:10,400 --> 00:00:15,230 and that's going to cost to EFORE artist tbsp then. 4 00:00:16,140 --> 00:00:19,350 It's created and then I've got to add it to my project. 5 00:00:20,810 --> 00:00:28,580 A double click here and then I select all files and then I can find it, it's over here, I double click 6 00:00:28,580 --> 00:00:29,100 to add. 7 00:00:29,750 --> 00:00:32,360 So yes, no, it's part of our project. 8 00:00:33,450 --> 00:00:43,440 So we start by using the if and statement to prevent multiple additions or multiple definition, so 9 00:00:44,100 --> 00:00:46,940 I do this and then. 10 00:00:47,940 --> 00:00:48,720 And if. 11 00:00:51,060 --> 00:00:51,600 Right. 12 00:00:52,650 --> 00:00:56,000 Remember I said we've got a mojos, one of them is the time. 13 00:00:56,360 --> 00:01:03,000 Let's start with I'm going to start by creating handlers for the time as we're going to use time as 14 00:01:03,000 --> 00:01:04,810 two, three, four and five. 15 00:01:05,100 --> 00:01:10,870 I'm just going to keep them here and we're going to have an API to initialize the timer. 16 00:01:11,190 --> 00:01:12,920 Another API to start. 17 00:01:12,930 --> 00:01:21,170 A timer would interrupt and then we're going to have another API to perform the two steps in one show. 18 00:01:21,180 --> 00:01:24,910 I'm just going to bring the APIs to initialize the timer first. 19 00:01:24,930 --> 00:01:26,100 It's as simple as this. 20 00:01:26,100 --> 00:01:27,440 It takes no argument. 21 00:01:27,450 --> 00:01:30,150 It returns no parameter as well. 22 00:01:31,840 --> 00:01:40,150 Like this and then this, which I used to initialize the time, is then we need some APIs to initialize 23 00:01:40,150 --> 00:01:41,850 and start the interrupt. 24 00:01:42,640 --> 00:01:44,170 We shall see how they're implemented. 25 00:01:44,200 --> 00:01:48,820 I know they might look a bit strange at this moment, but don't worry. 26 00:01:49,480 --> 00:01:56,740 So instead of just writing out all the APIs for all modules, how about we do this and then we deal 27 00:01:56,740 --> 00:02:03,710 with the implementation of the time and then we come back to Canada module, then we deal with its implementation. 28 00:02:03,760 --> 00:02:06,500 So I'm going to create the implementation file as well. 29 00:02:06,610 --> 00:02:09,460 I'll come over here at New Item. 30 00:02:10,650 --> 00:02:19,620 I don't see far then I'm going to add the name artist, PZP and the other over here, what I want is 31 00:02:19,620 --> 00:02:23,630 to include the DOT HFA we just created over here. 32 00:02:23,850 --> 00:02:25,080 So I'm going to say include. 33 00:02:29,440 --> 00:02:31,030 Today like this. 34 00:02:32,280 --> 00:02:35,000 I think the age is problematic. 35 00:02:35,540 --> 00:02:43,370 OK, so it cannot identify this is because we've not ordered the estimated 32 hardware obstruction there, 36 00:02:43,400 --> 00:02:45,980 which is provided by Steve Microelectronics. 37 00:02:46,580 --> 00:02:52,070 So to do that, I'm just going to come here, come back here and come to devise. 38 00:02:53,850 --> 00:03:00,840 And come to KUB Hall and I'm just going to include the time out with with just initialise the timer. 39 00:03:02,900 --> 00:03:10,940 And what I'm going to do is I'm going to resolve resolve and then I'm going to select one of these and 40 00:03:10,940 --> 00:03:12,850 the one I'm going to select is the classic. 41 00:03:13,430 --> 00:03:17,630 So come over here and select classic here like this and it's all disappeared. 42 00:03:17,670 --> 00:03:18,860 Meaning it's OK now. 43 00:03:19,100 --> 00:03:20,290 And I click OK. 44 00:03:21,170 --> 00:03:23,030 And then once that is done, I can just. 45 00:03:23,030 --> 00:03:23,330 Right. 46 00:03:23,330 --> 00:03:26,510 Click over here and then see this one here. 47 00:03:28,000 --> 00:03:29,380 And I would include. 48 00:03:31,710 --> 00:03:37,620 And you can see this has disappeared now, if I wish to go everywhere, shall deal with that later. 49 00:03:39,520 --> 00:03:46,500 So let's take a look at the implementation of the timeline module, less populated initialization function 50 00:03:46,510 --> 00:03:51,280 we just spoke about or just break off for initialization such once. 51 00:03:53,740 --> 00:04:00,250 And as you can see, we've got the time in it here, and what we're doing is we initialism this time 52 00:04:00,550 --> 00:04:02,350 to work in milliseconds unit. 53 00:04:03,260 --> 00:04:10,190 And because our clock frequency is 16 megahertz, we use a scale of sixteen thousand and then we use 54 00:04:10,190 --> 00:04:15,770 a period of one, meaning the units is one millisecond or a millisecond. 55 00:04:17,870 --> 00:04:25,460 And they see this one as millisecond as well, but we shall change these parameters later with our experiment, 56 00:04:25,460 --> 00:04:25,930 right. 57 00:04:26,630 --> 00:04:32,830 And also we shall build a function that would help us change the system frequency to 80 megahertz. 58 00:04:33,050 --> 00:04:36,510 And once that is done, we have to come here and update it as well. 59 00:04:37,220 --> 00:04:42,620 But, yeah, this is a if you require more explanation or if you want to build your own time, a drivers, 60 00:04:43,340 --> 00:04:45,630 you can send me a message and I'll take you through that. 61 00:04:46,070 --> 00:04:47,270 So that's the nightfall. 62 00:04:47,270 --> 00:04:48,950 But this not the only thing we need. 63 00:04:48,960 --> 00:04:55,790 We also need the MSP in it and the need for the mouthpiece towers for the microcontroller support package. 64 00:04:56,390 --> 00:04:57,490 We need that as well. 65 00:04:57,800 --> 00:05:01,630 That's required by the system, 32 hardware obstruction there. 66 00:05:02,180 --> 00:05:03,860 So I'm going to grab those as well. 67 00:05:04,380 --> 00:05:11,510 I mean, we could we could actually take the content of the MSB in its function and put it inside the 68 00:05:11,720 --> 00:05:15,600 standard in its function, but that would just make things clutter together. 69 00:05:15,920 --> 00:05:17,020 So this is it. 70 00:05:17,030 --> 00:05:19,640 This just enables the timer to interrupt request. 71 00:05:20,820 --> 00:05:26,190 And we can come over here to change, to interrupt priorities and the priorities. 72 00:05:27,230 --> 00:05:33,320 And this one is used to initialize the timer so we can call this function in case we wanted to initialize 73 00:05:33,320 --> 00:05:33,950 the timer. 74 00:05:35,000 --> 00:05:41,320 So this the D in it, then we have the timer to start this one here. 75 00:05:41,780 --> 00:05:47,480 It's a combination of the pace start interrupt function and the timer to in its function. 76 00:05:47,930 --> 00:05:55,580 And we can call this one function to initialize the timer and then start interrupt rather than start 77 00:05:55,970 --> 00:05:56,790 initialize. 78 00:05:57,470 --> 00:06:00,260 So I'm just going to bring that over here as well. 79 00:06:01,790 --> 00:06:03,720 If there's anything you do not understand. 80 00:06:04,940 --> 00:06:07,240 Don't forget to leave a question or send me a message. 81 00:06:07,940 --> 00:06:11,660 I don't want it to feel like I'm just dropping code on top of your head. 82 00:06:11,990 --> 00:06:17,330 So really, there's a lot to cover in developing and building real time applications. 83 00:06:17,330 --> 00:06:22,160 And to spend time building peripheral modules is a different course. 84 00:06:22,190 --> 00:06:23,770 That's why I'm taking this approach. 85 00:06:23,780 --> 00:06:30,800 But if you disagree or if you need more explanation for any of what I'm doing here, don't hesitate 86 00:06:30,800 --> 00:06:33,860 to send me a message or to leave a question below. 87 00:06:33,920 --> 00:06:35,780 Yeah, right. 88 00:06:35,780 --> 00:06:36,340 Moving on. 89 00:06:36,830 --> 00:06:39,560 So then we've got we've got a C. 90 00:06:40,070 --> 00:06:43,240 Yes, we've got all the time our initialization stuff done. 91 00:06:43,970 --> 00:06:46,940 So what I'm going to do next is bring in the interrupt hunt. 92 00:06:46,940 --> 00:06:53,090 Less of the time is and I'm going to keep the interrupt handlers in the support package file and then 93 00:06:53,090 --> 00:06:58,670 we can copy and paste that interrupt handler into our application file, which is going to be something 94 00:06:58,670 --> 00:07:04,910 like may not see when we start writing the applications, but I'll bring the interrupt handlers here. 95 00:07:05,330 --> 00:07:08,660 And what I'm going to do also is to create some local variables. 96 00:07:09,230 --> 00:07:13,130 I'm going to call them count two, three, four, five. 97 00:07:13,610 --> 00:07:19,820 And later on, when we test in the module, we're going to see whether indeed these counties increment 98 00:07:19,820 --> 00:07:24,370 according to the the period or the frequency we've set for each timer. 99 00:07:24,860 --> 00:07:27,080 So I'm going to bring the local variables here like this. 100 00:07:28,550 --> 00:07:32,720 And I'm going to bring the interrupt handlers all at once again. 101 00:07:34,790 --> 00:07:40,340 You can download a complete board support package at the end of this video, so I don't need you to 102 00:07:40,340 --> 00:07:44,330 be, you know, type in that, I know that's unrealistic. 103 00:07:44,730 --> 00:07:48,950 So we're going to add another function to help us create millisecond delays. 104 00:07:49,310 --> 00:07:50,990 And that's a very simple function. 105 00:07:52,280 --> 00:07:53,180 It's like this. 106 00:07:54,050 --> 00:07:59,210 And this shall complete the the the implementation of the time of my. 107 00:08:00,290 --> 00:08:06,040 So next, we will take a look at the ATC modules and we initialize in just one ATC pen. 108 00:08:06,380 --> 00:08:09,200 And with this, we shall connect our potential meter. 109 00:08:09,920 --> 00:08:16,850 And later on we'll see whether we can connect a different kind of sensor to plot the graph on the LCD 110 00:08:16,850 --> 00:08:17,300 screen. 111 00:08:18,260 --> 00:08:18,670 Hello. 112 00:08:18,680 --> 00:08:19,400 Welcome back. 113 00:08:19,430 --> 00:08:20,740 So let's continue. 114 00:08:21,350 --> 00:08:28,550 I've just come over here and create a new file, right click add new item at each file and there's going 115 00:08:28,550 --> 00:08:31,700 to cost Stamford's to efore Artus tbsp. 116 00:08:32,300 --> 00:08:36,920 Then it's created and then I've got to add it to my project.