===== Flashing an LED in C on Raspberry Pi B+2=====

The C example "Flashing an LED using the Raspberry PI and C Programming Language" by Gert van Loo & Dom 
[[https://startingelectronics.org/software/raspberry-PI/raspberry-PI-flash-LED-C/|Flashing an LED]] don't works on the Raspberry Pi B+2. For that one small midifikation has been done, change:\\

  #define BCM2708_PERI_BASE        0x20000000
  #define GPIO_BASE                (BCM2708_PERI_BASE + 0x200000) /* GPIO controller */
  
into:\\

  #define BCM2736_PERI_BASE        0x3F000000
  #define GPIO_BASE                (BCM2736_PERI_BASE + 0x200000) /* GPIO controller */

Code:\\
[[http://dernulleffekt.de/download/blink_GPIO18_BCM2835-36.c]]

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===== Knowledge =====

The Raspberry Pi B has the SoC BM2835 and the Raspberry Pi B2 has the Soc BM2836 on the Board. That means working with the GPIOs needs different code.

GPIO Hardware\\
[[http://elinux.org/Rpi_Low-level_peripherals]]

Raspberry Pi GPIO Manual for Wiring, C and C++\\
[[http://raspberrypiguide.de/howtos/raspberry-pi-gpio-how-to/]]\\
[[https://learn.sparkfun.com/tutorials/raspberry-gpio]]\\
[[http://www.pieter-jan.com/node/15]]\\

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