CHAPTER 1
Introduction
The introduction of the Raspberry Pi 2 has ushered in exciting new opportunities. No longer is the software limited to one CPU core, but now executes on four. Memory has been doubled to 1 GB, providing a larger disk cache and resulting in better SD card performance. This also leaves room for larger applications. Having four built-in USB ports is also helpful in avoiding the need for a USB hub.
Some things have changed underneath the hood as well, like the physical address for peripherals. The address BCM2708_PERI_BASE has changed from 0x20000000 to 0x3F000000 for the Raspberry Pi 2. This means that a lot of software written ...
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