ARM : Example Setting PLL for LPC2148

Hi friends this is Partha, this is my second tutorial on zembedded.com. Thanks for appreciating my first tutorial here. In this tutorial we are going to talk about clocking the ARM microcontrollers. ARM controllers can be clocked in different ways, using external clock with cycle 50-50, connecting external crystal oscillator, there are several clocking mechanism. Today we are going to discuss about using external crystal with on chip PLL oscillator.

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An intro to Cortex M3 by NXP

In this series of tutorials we take a look into the over view of ARM Cortex-M3 processor, I will try to  cover fundamentals, registers, operation modes, built-in nested vector interrupt controller, memory map, bus interface, MPU, instruction set, interrupt exceptions, debugging support etc.

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COMPLEX STRUCTURE DEFINITIONS

Introduction

This is out second tutorial based on Structures. I hope you have gone through the first one where we discussed all the basic of structures. In case if you have landed directly here then I request you to click here, to start from first tutorials.

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Basic Structures in C

Structures are one of the data type available in C language. As you know, this is also an user defined data type. It is like to hold multiple number of variables as a bundle like an array but the only difference between arrays and structures is

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