Deprecated

BBBlackC

BBBlackC is a C library for easy access to the Beaglebone Black GPIOs.

For now, it only support GPIOs, but it will soon support the PWM, SPI, UART ....

Instructions

If you want to use BBlackC, you just need to add its path into your compiling command.

Typically:

gcc foo.c include/bbblackc.c -o foo

And you must add his header into your file.

#include "include/bbblackc.h"

You must have access to /sys/class folder when you execute your program.

Using BBBlackC

GPIO

Before you can use your GPIO you need to initialize it.

int gpio_init(int GPIO, char* direction);

GPIO : Your GPIO in the "P0_00" format, you can also use its ID.
direction : OUT/IN

Example

# Initialize P8_14 as output
 gpio_init(P8_14, OUT);

After that, you can pull-up and pull-down it with

int gpio_set(int GPIO, int value);

GPIO : Your GPIO in the "P0_00" format, you can also use its ID.
value : HIGH/LOW or 1/0 as you want.

Example

#set P8_14 to HIGH
gpio_set(P8_14, HIGH);

At the end of your program, you need to cleanup your GPIO.

int gpio_unset(GPIO);

GPIO : Your GPIO in the "P0_00" format, you can also use its ID.

Example

Blinking LED

#include <stdio.h>
#include <stdlib.h>

#include "include/bbblackc.h"

int main()
{
	gpio_init(P8_16, OUT);
	for(int i =0; i<10;i++)
	{
		gpio_set(P8_16, LOW);
		sleep(1);	
		gpio_set(P8_16, HIGH);
		sleep(1);	
	}
	gpio_unset(P8_16);
	return 0;
}