User`s manual

Getting Started With Linux on the LPC3250 OEM Board Page 6

2 Getting Started

2.1 Introduction

This chapter describes how you get-up-and running with prebuilt images of the u-boot, Linux kernel

and root file system. Necessary images can be downloaded from Embedded Artists support site or you

can follow the instructions in chapter 3 to build the images yourself.

•

u-boot.bin

– The Universal Bootloader, known as u-boot for short.

•

uImage

– The Linux kernel image.

•

rootfs.jffs2

– A JFFS2 formatted root file system to be stored in NAND flash.

Besides the images you will also need a USB memory stick and an MMC/SD card (if you select to

load the u-boot from a MMC/SD card) in order to follow the instructions below. A terminal application

is also required as an interface towards the board. These instructions will be using the Tera Term

terminal application.

2.2 Preparation and Setting up the Board

In this section you will setup the board and boot into the Stage 1 boot loader (S1L) where it will then be

possible to load the u-boot.

1. Copy the

u-boot.bin

file to the root directory in a FAT formatted MMC/SD card.

2. Copy the

uImage

and

rootfs.jffs

files to the root directory of a USB memory stick.

3. Insert the MMC/SD card in the MMC/SD card slot on the QVGA Base board, see Figure 1.

4. Insert the USB memory stick in the USB A connector, see Figure 1.

5. Connect the USB cable that came with the board to the USB mini-B connector marked UART

#0, see Figure 1. Also make sure that the cable is connected to your computer.

6. The board will now power up. Follow the instructions in the User’s Manual for the LPC3250

OEM Board to install necessary FTDI USB drivers and identify which COM port that was

assigned to the board.

7. Start your terminal application and connect to the COM port associated with the board.

Note: Make sure the automatic ISP jumpers (marked RST and P2.10 on the base board)

are open. If not it’s possible that a terminal application resets the board. In Figure 1 the

jumpers are closed.

8. Reset the board by pressing the Reset button. The S1L bootloader will boot, see Figure 2 to

see what it looks like in Tera Term.

9. You are now ready to continue to the next section and load the u-boot.