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Compiling C Code on the Board

Command Line Method​

First, create a test.c file in the current directory on the WalnutPi and enter the following content (this code prints "Hello WalnutPi" in the terminal):

#include <stdio.h>

int main (void)
{
  printf ("Hello WalnutPi\n") ;

  return 0 ;
}

To compile the code, use the gcc command, which is very simple. For example, to compile test.c into an executable named test, just run:

gcc test.c -o test

Run the compiled program:

./test

You will see the terminal print: Hello WalnutPi:

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Geany IDE (Local on WalnutPi)​

The WalnutPi desktop system comes with Geany IDE pre-installed, located under Start > Development. You can use Geany for C programming, compilation, and execution.

Open Geany:

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Create a new file, enter the test code below, and save it as a .c file.

#include <stdio.h>

int main (void)
{
  printf ("Hello WalnutPi\n") ;

  return 0 ;
}

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Click the Build button to see the compilation results in the lower panel. If compilation is successful, an executable file will be generated in the current directory.

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Click the Execute button to run the compiled executable. A new terminal window will pop up displaying the "Hello WalnutPi" message.

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