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In this post, we're going to learn how to use a PIC C Compiler. It's not as difficult as you might expect because there are a number of great tools out there that make the process easier. In this post, we'll go through everything from installation and project structure to code examples and debugging. Let's dive in! The PIC compiler is a device that takes in source code files written in C and turns them into machine-readable object code. The result of this compilation is called an object file or sometimes a linker script file (.lkr). You can create one or more object files from one or more source files at any time during your development cycle by invoking the compiler with the -c flag. Let's create an empty project file, the main.c, which only contains the following function: int main() {printf("Hello World! ");} The compiler will compile this code into the file called main.hex that will be located in your source folder. As you can see, it also gives you a nice visualization of what's happening inside your program. Now let's start our compiler by typing: pic32gcc -fpic32_none_eabi -o main.hex main.c You'll see that everything is now done (if you want to verify this by running your program). You may now be wondering why I used the option -fpic32_none_eabi . While it's not necessary, it will produce a pretty clean binary file for later use in other projects or used as a library. I'd recommend you to start by creating a directory structure to keep your project organized and easy to navigate through. I created two folders, source and bin . The source folder will contain the source code for our project and the bin folder will contain everything needed to be run: the linker script file (.lkr), object files (.hex files), and the executable file (.exe) all in one place. To finish it off, let's create our project file. Create a file called main.txt and add the following to it: This will be your project file which you can invoke with pic32gcc to compile your object files into executable files. Let's try it out! Here is the directory structure after compilation, notice that the main executable file is in bin/main directory instead of being in bin/main.exe . This is because I used the option -nostartfiles when compiling so it should be referenced by main.txt . Now that we're all set, let's start our program. So now you can run it! This is one of the many possibilities of using this compiler. If you want to learn more about this compiler then I like to recommend you to take a look at these tutorials: The PIC C Compiler has some problems... I ran into some issues with the compiler's configuration by trying to use gcc instead of gmp . It turned out that it is required for compiling the ADS1210 library (from the datasheet). So by default, if you want to compile your program with PIC, just use -m64 in gcc in order to compile the ADS1210 library. cfa1e77820
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