main function

gistfile1.txt

/* main.c - the entry point for the kernel */
 
#include <stdint.h>
#include "rpi_lib/rpi.h"
 
#define UNUSED(x) (void)(x)
 
// kernel main function, it all begins here
void kernel_main(uint32_t r0, uint32_t r1, uint32_t atags) {
	init_gpio();

	pinMode (22 ,ALT4);
	pinMode (4 ,ALT5);
	pinMode (27 ,ALT4);
	pinMode (25 ,ALT4);
	pinMode (24 ,ALT4);

	// GPIO16 を H にセット
	digitalWrite (16 , HIGH );
	// GPIO16 を L にセット
	digitalWrite (16 , LOW );

	UNUSED(r0);
	UNUSED(r1);
	UNUSED(atags);
}