Use MPLAB X to configure PIC microcontrollers

Recently, I have a project that requires me to use a PIC microcontroller for development (I have never used it before). I encountered many problems that I don't understand. Here I summarize the problems I encountered and the corresponding solutions. I hope there will be guidance from experts, and I also hope to help friends like me.

1. Introduction to PIC microcontrollers

I have played with 51 and STM32 microcontrollers before. I was confused when I first started. I didn’t know where to start when I got the data sheet. I searched for information online and saw “Guo Tianxiang teaches you to play with PIC microcontrollers in ten days”. Of course, the microcontroller used in the video is not the model of the microcontroller I use, but watching the video can provide a direction. It is not necessary to watch the entire video. You can read the data sheet and write the code if you have an idea. The following is a link to the relevant video (including relevant code, thanks to the enthusiastic netizens for sharing!). (PS: Thank you again, Mr. Guo Tianxiang, from 51, DXP, etc., I learned from watching your videos!)

(Video with code)

Link: https://pan.baidu.com/s/1tJRE3OJ8s9DC-90nlxmfLQ

Extraction code: a0ge

Link: https://pan.baidu.com/s/18SGLYs5Dcv5YSyY_MGjJuA

Extraction code: g0f0

2. The first configuration problem encountered

Since I am using MPLAB X V5.0 IDE and XC8 (V2.0) compiler, I encountered a problem during configuration. The video uses __CONFIG(X);--[pic16F series] to configure (PIC16F&PIC18F use different methods), and an error message appears during compilation: Unexpected tag

I can't find the reason at the moment (I hope someone who knows can give me some guidance), so I searched online for information and found that the software can be configured by itself. The operation is as follows:

If you have multiple projects open, be sure to set the project you want to operate as the main project, as follows:

Open the configuration interface as follows

The configuration interface is as follows:

After configuring according to the data sheet and actual conditions, the motor "outputs and generates source code" will generate the corresponding source code based on your configuration:

Just copy the code into your source file.

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The above configuration can be realized. If I want to configure other projects, I must set this project as the main project, because the MCU model of each project may be different, and the configuration may also be different

This is the configuration of another test project of mine.

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3. Regarding the writing of interrupt functions.

It is also different from the video. The video uses the form of void interrupt tim0(), but when I use the compiler XC8 (V2.0), it cannot be compiled.

hint:

main.c:81:6: error: variable has incomplete type 'void'

void interrupt isr_deal(void)

main.c:81:15: error: expected ';' after top level declarator

I don't know the reason, but it can be compiled when using XC8 (V1.45). (Please give me some advice!)

Refer to the XC8 (V2.0) compilation manual, and write it in other forms to compile. The manual is opened as follows:

1. Click "Compiler Help" as shown in the picture.

2. Go to the corresponding local help website

Click to open the corresponding document to view the relevant instructions.

If you cannot open the website, you can find it in the compiler installation directory, such as mine:

Find the corresponding document in.

---------The above, there will be updates later.