1 00:00:01,530 --> 00:00:01,920 Right. 2 00:00:02,250 --> 00:00:08,070 So you can decide to create a new file for the ADC driver. 3 00:00:08,090 --> 00:00:12,780 Oh we can just keep the ADC driver in the main file. 4 00:00:13,020 --> 00:00:15,510 So I'm just going to keep the adc in the main file. 5 00:00:15,540 --> 00:00:19,830 But you can create an ADC to C and ADC dot H. 6 00:00:19,890 --> 00:00:20,270 Hmm. 7 00:00:20,330 --> 00:00:23,580 Actually let me just show you how to much low rise. 8 00:00:23,590 --> 00:00:28,320 This by having a separate driver in a separate file for the ADC. 9 00:00:28,320 --> 00:00:31,390 So I'm going to come by here at new item. 10 00:00:31,440 --> 00:00:32,310 It's a c file. 11 00:00:33,360 --> 00:00:39,870 Ordinarily I would keep this in the main file but since then the lesson that since perhaps it would 12 00:00:39,870 --> 00:00:43,140 be useful and look more and. 13 00:00:44,150 --> 00:00:47,290 Yeah let me just keep it in the in a separate file. 14 00:00:47,290 --> 00:00:53,240 I'll call this A C C and then I'll call this it is that H. 15 00:00:53,250 --> 00:01:01,200 And the reason I'm doing this is to show you we can reuse each of the drivers separately so we can simply 16 00:01:01,200 --> 00:01:08,240 copy LCD C and LCD to each and add it to a different project that we are using in the same way. 17 00:01:08,240 --> 00:01:15,990 The ADC driver that we are both right we can copy ADC that C ADC dot H and add it to a different project. 18 00:01:16,050 --> 00:01:21,730 That is why I've decided to keep the ADC functions in a separate FA right. 19 00:01:21,750 --> 00:01:24,710 So yeah it's just for this purpose. 20 00:01:24,740 --> 00:01:33,560 But ordinarily I would just add it in the in demand or c file since I've got my own written ADC drivers. 21 00:01:33,720 --> 00:01:39,810 Much more complicated than the one we're going to use so I hope you understand in a way I'm going to 22 00:01:39,840 --> 00:01:42,240 do if not define define 23 00:02:03,460 --> 00:02:06,120 it. 24 00:02:06,790 --> 00:02:07,690 OK. 25 00:02:09,340 --> 00:02:10,190 Right. 26 00:02:10,420 --> 00:02:15,850 So I'm going to have an ADC 0 in it. 27 00:02:16,010 --> 00:02:19,310 I'm just gonna put a prototype here cause this has to be clinical. 28 00:02:19,410 --> 00:02:21,840 I'm going to have another function on us ADC. 29 00:02:21,850 --> 00:02:22,630 Get results. 30 00:02:26,650 --> 00:02:27,320 Right. 31 00:02:27,860 --> 00:02:34,760 So all we have to do is go to the go to the doc see file and implement these functions. 32 00:02:34,770 --> 00:02:38,410 The reason we have this error is because we've not included a study end 33 00:02:42,300 --> 00:02:42,800 show. 34 00:02:42,840 --> 00:02:50,270 Come over here and include it if you don't age. 35 00:02:50,790 --> 00:02:54,420 Another thing we need to include is the header file for our microcontroller. 36 00:02:54,480 --> 00:02:58,830 So come over here right click and then include this over here. 37 00:02:58,830 --> 00:03:07,450 Once that is done we can come over here and implement our ADC in its function. 38 00:03:08,160 --> 00:03:09,000 This is 0. 39 00:03:09,000 --> 00:03:14,370 We use an ADC 0 and it's over here. 40 00:03:14,500 --> 00:03:16,060 Void void. 41 00:03:16,830 --> 00:03:22,340 Open Close and we are going to initialize P3 as our ADC input. 42 00:03:22,350 --> 00:03:29,280 You start off by enabling clock access to the port e as well as the ADC module. 43 00:03:29,490 --> 00:03:33,450 And I explained why we enable clock access. 44 00:03:33,510 --> 00:03:37,380 I explained this earlier that 4 for saving power. 45 00:03:37,530 --> 00:03:44,760 There is this mechanism known as the clock gate and mechanism for mode in the microcontrollers meaning 46 00:03:45,240 --> 00:03:51,940 by default the peripheral or the module has no clock enabled to it in DC. 47 00:03:51,990 --> 00:03:53,490 And this saves power. 48 00:03:53,490 --> 00:03:59,490 If you want to use a particular module or power for you need to enable that clock. 49 00:03:59,550 --> 00:04:02,710 That is why we access the GPO. 50 00:04:02,730 --> 00:04:04,140 I receive GC 51 00:04:10,560 --> 00:04:23,220 points to enable our AC DC GPA to enable the clock for GPA you E and then RC GC ADC and the GC is the 52 00:04:23,220 --> 00:04:28,960 clock gate and register so this stands for clock gate. 53 00:04:29,100 --> 00:04:35,470 This probably stands for clock gate in C clock and then gate and then control. 54 00:04:35,640 --> 00:04:36,200 Right. 55 00:04:36,250 --> 00:04:39,990 They can verify this from the datasheet we spoke about this earlier. 56 00:04:39,990 --> 00:04:45,870 If we did not talk about this maybe then I spoke about it in the SDM 32 course but in any case that 57 00:04:45,870 --> 00:04:51,570 is why we always have to enable clock in the past in very good microcontrollers. 58 00:04:51,570 --> 00:04:59,130 Clock the clock was enabled for all the parts or the peripherals so there was no need in enabling clock 59 00:04:59,190 --> 00:05:04,490 access to particular peripherals but later on it was realized that this waste power. 60 00:05:04,530 --> 00:05:11,240 Why do you have to have clock access to each and every module of the of the microcontroller. 61 00:05:11,250 --> 00:05:19,250 If you're not using it because of that we have to enable clock only to the modules we use in right. 62 00:05:19,350 --> 00:05:20,280 So let's move on. 63 00:05:20,310 --> 00:05:29,290 We are going to enable P3 like I said and this over here and there was it was said the alternate function 64 00:05:29,310 --> 00:05:37,490 select D to enable and then we set analog select analog mode select and once that is done we configure 65 00:05:37,750 --> 00:05:38,690 ATC itself. 66 00:05:38,700 --> 00:05:45,720 And the reason I'm going quickly with this is because we already studied if I write in ADC drivers in 67 00:05:45,720 --> 00:05:52,350 the ADC section to reconfigure the ADC here we use in the sample sequence are three because we have 68 00:05:52,350 --> 00:05:57,590 just one one channel here and it's sufficient for what we are about to do. 69 00:05:57,600 --> 00:06:02,950 Once that is done we move on to the next function the function 4 gets in the resort. 70 00:06:02,970 --> 00:06:07,380 This is going to return you into that 32 data type and it's quality. 71 00:06:07,380 --> 00:06:12,600 This is 0 underscore gets results. 72 00:06:13,140 --> 00:06:14,520 It's going to take no variable. 73 00:06:14,700 --> 00:06:20,150 It's going to take no arguments open and close. 74 00:06:20,250 --> 00:06:24,540 We start off start a conversion 75 00:06:29,050 --> 00:06:31,240 and then wait for conversion complete 76 00:06:34,820 --> 00:06:37,080 that we'd read the results 77 00:06:40,950 --> 00:06:47,210 declared a completion flag and we returned to results. 78 00:06:47,400 --> 00:06:52,260 And the reason we have this is because we've not defined results. 79 00:06:52,370 --> 00:06:54,750 Okay. 80 00:06:54,770 --> 00:06:56,300 Right. 81 00:06:56,530 --> 00:06:57,220 Sorry about the 82 00:07:28,330 --> 00:07:31,020 tattoo on this quality. 83 00:07:31,210 --> 00:07:32,110 So it's okay. 84 00:07:32,110 --> 00:07:32,920 We should be fine. 85 00:07:33,670 --> 00:07:33,990 Okay. 86 00:07:34,450 --> 00:07:35,160 Let's see. 87 00:07:37,130 --> 00:07:38,080 What happened here. 88 00:07:40,400 --> 00:07:41,750 Yeah. 89 00:07:41,940 --> 00:07:44,840 Know what happened here okay. 90 00:07:45,130 --> 00:07:48,430 We simply returned the resort and this will be the ADC Value. 91 00:07:48,510 --> 00:07:48,950 Okay. 92 00:07:49,010 --> 00:07:51,190 So we've got our drivers set. 93 00:07:51,190 --> 00:07:53,820 We can put it all together in the main file. 94 00:07:53,980 --> 00:07:55,680 So let's go to the main file now. 95 00:07:56,230 --> 00:08:02,590 I am going to come over here and I'm going to include include 96 00:08:06,460 --> 00:08:10,900 ADC to h as well as include 97 00:08:18,970 --> 00:08:31,270 this is called g LCD G key LCD and I score SD 7 7 3 5 and age right. 98 00:08:31,330 --> 00:08:35,570 We've got both the LCD and ADC drivers included here. 99 00:08:35,590 --> 00:08:37,750 Once that is done I'm going to open 100 00:08:42,490 --> 00:08:43,200 each made 101 00:08:50,690 --> 00:08:57,650 and within main I'm going to initialize the ADC cause we've already written the function for performing 102 00:08:57,650 --> 00:09:07,060 the ADC in it and I'm going to initialize the graphic display as well because we have the already written 103 00:09:15,150 --> 00:09:20,040 the reason we have in this is because it's not included in no gun each far 104 00:09:39,120 --> 00:09:43,670 we've got to include that in it and in on each file. 105 00:09:43,840 --> 00:09:45,990 This should make this disappear right. 106 00:09:49,400 --> 00:09:50,450 Once this is done 107 00:09:59,590 --> 00:10:01,410 we can get no infinite loop here. 108 00:10:08,380 --> 00:10:14,590 And I'm going to create functions for plotting the data as well as trying the axes. 109 00:10:14,650 --> 00:10:16,610 I'm gonna have a function here and you're not strong. 110 00:10:16,600 --> 00:10:18,630 Actually is this going to be a local function. 111 00:10:20,520 --> 00:10:30,260 And this basically is going to set the axes color background color and then I'm going to call the axis 112 00:10:30,890 --> 00:10:38,780 time for x axis ADC for y axis and you can read the content of draw axes. 113 00:10:38,990 --> 00:10:44,720 Further if you do not understand and we've got to define the maximum why if I do as well as the minimum 114 00:10:44,720 --> 00:10:47,150 wage value so I'm gonna bring the here 115 00:10:59,860 --> 00:11:01,900 we can define y much 116 00:11:07,050 --> 00:11:07,700 OK. 117 00:11:07,780 --> 00:11:11,940 Two to fit this maximum ADC. 118 00:11:13,990 --> 00:11:15,550 And why me can this hero 119 00:11:24,290 --> 00:11:29,800 and we can put a prototype of this function up here. 120 00:11:32,740 --> 00:11:33,180 Right. 121 00:11:33,210 --> 00:11:38,110 We are going to have another function for growing less if we want to have an informal bar just like 122 00:11:38,110 --> 00:11:45,700 you have a task or in full bar at the top of the top of your phone showing your battery level that date 123 00:11:45,700 --> 00:11:47,440 and time we can have a similar thing. 124 00:11:48,160 --> 00:11:55,270 So over here we could say we are showing the CPSU how much work to use perform in the temperature and 125 00:11:55,270 --> 00:11:55,690 other things. 126 00:11:55,690 --> 00:11:59,150 So I've just written the string here. 127 00:11:59,190 --> 00:12:05,590 C.P. you of course 85 percent utilization temperature equals 30 degrees. 128 00:12:05,620 --> 00:12:07,600 So this is going to be printed at the top. 129 00:12:07,610 --> 00:12:09,040 I'm calling this in full. 130 00:12:09,460 --> 00:12:12,220 Right. 131 00:12:12,310 --> 00:12:14,920 Once this is done we can put a prototype 132 00:12:17,560 --> 00:12:19,210 over here. 133 00:12:19,660 --> 00:12:26,140 You can see the reason it's going to be at the top is because we are using these these positions these 134 00:12:26,140 --> 00:12:32,220 coordinates to put out the top and you can read more about these from the respective functions. 135 00:12:32,710 --> 00:12:36,040 Once we've got the info bar and the draw axes we can call them here 136 00:12:41,820 --> 00:12:43,330 and this should be a full bar 137 00:12:55,570 --> 00:12:56,590 right. 138 00:12:56,620 --> 00:13:02,590 Once that is done we can either last the last function or be to plot the data. 139 00:13:02,740 --> 00:13:08,680 So basically to plug the data we need to plot the point and increment to the next position in order 140 00:13:08,680 --> 00:13:11,600 to be able to plot the point in the next position. 141 00:13:11,650 --> 00:13:15,460 So we're going to have a function and another local function here and then as plot data. 142 00:13:15,460 --> 00:13:20,710 And this simply plot point sense of value is going to be the value we read from the ADC. 143 00:13:20,920 --> 00:13:24,520 Once we've plotted the point we increment the next position. 144 00:13:24,520 --> 00:13:29,160 I'm going to this defined sense of value over here at the top. 145 00:13:29,170 --> 00:13:35,830 And once that is done I'm simply going to read a sense of value from EDC using the ADC get to resort 146 00:13:35,830 --> 00:13:36,490 to function. 147 00:13:36,520 --> 00:13:40,690 We wrote in The ADC module once that is done. 148 00:13:40,990 --> 00:13:45,840 I'm going to plot data about all of these functions that we've written. 149 00:13:45,850 --> 00:13:47,730 You can write them in how you want. 150 00:13:47,770 --> 00:13:48,900 Right. 151 00:13:49,240 --> 00:13:55,870 Forrester's plot data here could be could be made to take an argument and the arguments should be what 152 00:13:55,870 --> 00:13:56,960 is plotted. 153 00:13:56,980 --> 00:14:03,760 So for instance this can be you interface to underscore t sense of value and then that will be passed. 154 00:14:03,820 --> 00:14:05,440 You can rewrite this function. 155 00:14:05,440 --> 00:14:08,440 These functions aren't perfect they're just good for the test. 156 00:14:08,440 --> 00:14:13,750 We're going to write we're going to run of hard coded sense of value into this function. 157 00:14:13,750 --> 00:14:18,350 But ordinarily you would want to allow the function to take an argument. 158 00:14:18,630 --> 00:14:19,150 Right. 159 00:14:19,570 --> 00:14:22,190 So our code looks complete thus far. 160 00:14:22,210 --> 00:14:30,760 Or C it looks fine or we have to do now is build get it onto our board connect our LCD and potential 161 00:14:30,880 --> 00:14:35,170 meter to the board and see how we works where to click over here to build 162 00:14:39,860 --> 00:14:41,110 and it's built successfully. 163 00:14:41,240 --> 00:14:43,670 Let's get it onto the board and see how it works. 164 00:14:43,730 --> 00:14:45,400 Certain business setup. 165 00:14:46,280 --> 00:14:56,060 Excuse the mess but if the attention of the method of what a new report get cause on powering the LCD 166 00:14:56,120 --> 00:14:58,290 display using if you're bored. 167 00:14:58,430 --> 00:15:03,740 Remember the two most important US firewalls to provides just three point report. 168 00:15:03,770 --> 00:15:06,610 So I'm using the nuclear provided fiber. 169 00:15:06,710 --> 00:15:13,250 That's the only reason the nuclear is here and there's the LCD and this is exactly it could be rude 170 00:15:13,460 --> 00:15:15,510 to plug the ABC value. 171 00:15:15,550 --> 00:15:21,730 No need to move money my ABC and CBS the main ABC. 172 00:15:22,090 --> 00:15:22,520 Right. 173 00:15:23,000 --> 00:15:23,850 So this is it. 174 00:15:24,490 --> 00:15:30,590 Well like I say the potential I mean I'm going to move the potential need to modern ABC. 175 00:15:30,650 --> 00:15:37,430 This is my potential into I'm going to move it and I can see it's being plotted accordingly. 176 00:15:37,430 --> 00:15:37,760 Right. 177 00:15:37,760 --> 00:15:43,540 And I said the potential router can be replaced with your own sense of it it doesn't often get attention. 178 00:15:44,300 --> 00:15:45,530 And yes this is it. 179 00:15:46,050 --> 00:15:50,840 And you know it is untouched as in the abstract to go it's the following. 180 00:15:50,850 --> 00:15:51,780 You can take a look at it. 181 00:15:51,800 --> 00:15:55,680 I'm going to upload quality code to the diplomacy. 182 00:15:55,770 --> 00:15:56,570 That's all there is. 183 00:15:56,580 --> 00:15:59,560 You have any questions just let me know and I'll see you later.