5.1 Das U-Boot

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Base/diffutils

Devel/binutils

Devel/gcc

Devel/make

Devel/patchutils

Utils/bzip2

Web/wget

The second requirement for building is the X-Scale cross-compiler itself. The GNUARM project provides a wealth of information needed to build a cross-compiler for ARM processors. Thankfully, it also provides an installer. As of this writing, Boundary Devices currently uses the GCC-3.4.3 package for Cygwin.

5.1.3General build steps

Quick start:

wget http://easynews.dl.sourceforge.net/sourceforge/u-boot/u-boot-1.1.2.tar.bz2 bzcat u-boot-1.1.2.tar.bz2 tar -xvf -

wget http://boundarydevices.com/u-boot-2005-10-21.patch.gz gunzip u-boot-2005-10-21.patch.gz

patch -p0 <u-boot-2005-10-21.patch cd u-boot-1.1.2 CROSS_COMPILE=arm-elf- make neon_config

-------- U-Boot Boundary Devices Specific Configuration Script --------

Choose display type (DA640X240 DA320X240 DA800X480 DA640X480 DA240X320 DA1024X768) []: DA1024X768 answer

Choose hardware type (NEONB NEON BD2003) [NEON]: answer

Choose software type (WINCE LINUX) []: WINCE answer

Include minidebug (y n) []: y answer

CPU speed (100 200 300 400) []: 400 answer

Configuration successful. make

Explanation.

The first four lines retrieve and extract the Das U-Boot sources and add support for the Neon￿R and BD-2003 devices.

The last two lines configure for the Neon￿R board itself, and finally, build a U-Boot binary. The prompts allow you to select the compile-time defaults for the display, operating system, and CPU speed. Including minidebug in your U-Boot image allows you to access the debugger while developing U-Boot scripts.

When complete, you’ll find a file named u-boot.bin in your u-boot-1.1.2 directory.

5.1.4Tailoring U-Boot for your application

The Boundary Devices patches (uboot neon bd2003.diff) make a variety of decisions about the boot process which may not match with the needs of

December 28, 2005

Revision 2.8

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Sonic Alert 2.8 user manual Das U-Boot

2.8 specifications

Sonic Alert 2.8 is a state-of-the-art alarm clock designed primarily for individuals with hearing impairments or those who simply require a more robust waking mechanism. Engineered to deliver high-performance features and proprietary technologies, this device stands out as a reliable solution for a restful night and an efficient morning wake-up.

One of the hallmark features of Sonic Alert 2.8 is its powerful bed shaker. This vibration mechanism is designed to be placed under your pillow or mattress, providing a tactile wake-up signal. For individuals who may not respond to traditional auditory alarms, this function ensures that they start their day without being late for appointments or commitments.

The alarm clock also boasts an impressive sound output. With adjustable volume settings, users can customize the alarm sound to their preference, ranging from gentle melodies to loud, attention-grabbing beeps. This flexibility caters to diverse user needs, allowing for a more personalized waking experience.

In terms of visibility, Sonic Alert 2.8 integrates a bright, flashing strobe light that works in conjunction with the auditory alarms. This visual cue appeals to those who may have difficulty hearing and can be beneficial in noisy environments. The strobe light can be set to flash in a specific pattern or color, adding another layer of customization to the waking experience.

Moreover, Sonic Alert 2.8 is engineered with a user-friendly interface, featuring large, easy-to-read display numbers that are perfect for the visually impaired. The intuitive buttons allow for straightforward operation, including setting alarms or toggling through various functions with minimal hassle.

The device is also equipped with a battery backup feature, ensuring that alarms will still sound even during power outages. This functionality provides peace of mind, knowing that important morning engagements won't be missed.

Additionally, Sonic Alert 2.8 is constructed with durable materials, making it a reliable companion for years to come. The sleek design and compact size make it easy to place on any bedside table without taking up excessive space.

Overall, Sonic Alert 2.8 exemplifies innovation in alarm technology, combining advanced features and thoughtful design to cater to users' unique needs. Whether for the hard of hearing or anyone who simply desires a more effective wake-up method, this alarm clock is an ideal choice.