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So now let's create the file to contain our assembly code and we do that by clicking here to create

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a new file.

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And let's say that the Save the file you can just press control s and then you save it in the same folder.

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I'm going to call it name dot s..

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Remember dot as is the extension for assembly code and dot c is the extension for C code.

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This father's main dot s you save it.

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And after you've saved the file to spend the folder but it's not yet in your project.

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So you have to bring it into your project to make it usable in the project and to do that.

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You can come here to source group 1 and DoubleClick and it brings you here and you locate your file

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costs your file is a dot as far.

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Obviously it's not displayed here.

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You can come here and choose display assembly or display of files which is much more convenient.

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And now you can see your main dot s file here.

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You double click to add it and it's added and it closed.

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Now you can see your file here.

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But before we stop typing let's examine our board our TVC board again.

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If you take a closer look at your board I'm sure you would notice there are 10 pairs of pins sticking

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out at the left and right.

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And so off the board you would also notice that these pins have labels like P 3 p.m. for PD 6 and so

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on and so forth.

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These labels are really important through these labels.

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We are able to know where to connect our input and output devices to match the code we write.

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What happens is that if we want to connect a sensor or switch or maybe an LCD to say P F three we will

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have to enable P F three programmatically.

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What this means is we will have to write code to tell the microcontroller to enable P if three to set

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P F three to either an input or an output depending on what we are connecting to p 3 or even we would

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have to tell it in microcontroller to set it up for an alternate function.

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So it is very relevant to read the labels carefully and to connect the wires or the input and output

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devices to the right pins.

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Since we are going to use the red LCD for this project let's dive into the user guide document and see

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how the Red LCD is connected to the board and I'm sure you might have downloaded a document by now.

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If not this is the link here.

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Yes you can just copy and paste this link in your address bar and hit enter.

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It will take you directly to the documents where you can download.

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You should certainly have it.

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Now I have mine here so I'll just maximize it to 150 percent to make it very clear.

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And let's scroll down to page 20.

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Yeah I hope pages are written.

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If the pages aren't written at the bottom you can just hit 20 here and jump straight there.

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And what we are looking for is the schematic diagram of the microcontroller.

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This is disconnected Matic diagram.

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This the microcontroller and if you take a look at P F 1 p F2 P F 3 and create the outlines you will

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realize that they are connected to red blue and green LCD respectively.

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This is P F 1 p 2 is down here p of 3.

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If you create the airlines you'd realize they come through this r twelve R eleven are two resistors

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and go to the LCD R and the DP Any DG distance for LCD red blue and green.

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So in order to use red I'm sure you can tell you realize that we would have to enable P if one to use

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the red LCD.

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Here it is.