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  • Windows Embedded Blog

    The Intern Perspective: Meg Quintero

    Posted By J.T. Kimbell
    Program Manager

    We continue our series of posts from Windows Embedded interns with the first of our 3 Explorer Interns that I had the privilege of coaching this summer. What’s an Explorer Intern? These interns don’t spend their whole summer in one of the three Software Development positions, but rather rotate between all of them, getting a taste for each. They’ll get the chance to come back next summer as a regular intern in the role of their choice. Below, Meg Quintero will tell you about her summer here in Seattle. To learn more about her project, check back next week for a post authored by all three Explorers.

    Introduction

    image
    Intern Signature Event at Gas Works Park

    Oh hai! My name is Meg, and I am one of the three Explorer interns on the Windows Embedded team. I am a rising junior at Harvard College concentrating in Computer Science and am contemplating a minor in Anthropology to further explore human interaction with technology. I am most recently from Havre, Montana, however, Cambridge has become more of my home. Back at Harvard, I am a soprano in the Harvard LowKeys, a contemporary co-ed a capella group, and have been singing for as long as I can remember. I enjoy biking, rollerblading, running, and pretty much anything that allows me to be outside. I am a big fan of the Red Sox and was able to attend a Red Sox vs. Mariners game and rep my team. I have been enjoying all that the Puget Sound area has to offer including incredible theater (“Rent”, “Les Miserables”, and “Turandot” were phenomenal), great shopping (Pike Place FTW), and waterfront a plenty. I also felt as if I died and went to heaven when I was handed a Samsung 9 Series Ultrabook at the Microsoft Intern Signature Event after hearing one of my favorite bands (Young The Giant) live at Gas Works Park.

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  • Windows Embedded Blog

    Understanding CEPC Boot Sequence in Windows Embedded Compact 7 – part 2

    Posted By David Campbell
    Program Manager

    Welcome back! This is part 2 of Doug Boling’s great write-up on Understanding CEPC Boot Sequence in Windows Embedded Compact 7. Last time we covered the PC boot sequence in detail. That provides the background for the Windows Embedded Compact specifics. Let’s jump right in...

    In Part 1, I started this discussion with an overview of two of the three different CEPC boot loaders provided in the Windows Embedded Compact 7. I discussed the LoadCEPC bootloader as well as how to use the BIOSLoader. I also talked about how the FAT file system. An understanding of the layout of a FAT storage device is important when understanding how these bootloaders work. In this installment, I will cover how the BIOSLoader and the WCELDR work and how to modify the WCELDR to adapt it to your hardware.

    How BIOSLoader Works

    In Part 1, I discussed how the file system works, now let’s return back to the BIOSLoader to cover how it works. When the system starts, the BIOS will load the Master Boot Records (MBR) into RAM which will find and load the boot sector of the active partition. This boot sector will be one of the BIOSLoader boot sectors that will have to be installed on the disk. The source code for the BIOSLoader boot sectors is located in \WINCE700\platform\cepc\src\bootloader\biosloader\bootsector, There is a unique boot sector for each of the different File Allocation Table (FAT) formats including ExFAT.

    The boot sector code finds the root directory and looks for the name BLDR with no extension. It expects to find this name in one of the first 32 entries in the root since the boot sector only reads the first sector of the root directory into memory.

    When the BLDR entry is found, the boot loader finds the location of the file data by using the first cluster entries in the directory entry for the file. Instead of following the FAT chain to properly load the entire file, the boot sector assumes that the file will be stored in linear sectors on the disk and reads a fixed (68 sectors or 34816 bytes) into memory at address 0:1000. This hard coded size provides an absolute limit on the size of the BLDR code.

    The boot sector then jumps to the first byte of the BLDR file. The BLDR then switches to protected mode and executes the remaining tasks from there. Those tasks include reading and parsing the BOOT.INI file and downloading or reading from the disk the NK.BIN file.

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  • Windows Embedded Blog

    July 2012 Optional Updates are on ECE for POSReady7

    The July 2012 Optional Updates are now available on the ECE site for Windows Embedded POSReady7.

    The list below applies to Windows Embedded POSReady 7:

      • KB2654644 - This is a USB driver update roll-up which includes the latest Embedded USB boot drivers.  Note that KB2533552 is a pre-requisite for this KB.  Volume Licensed customers can download this KB from the Download Center.
      • KB2721923 - This update fixes an issue with the Registry Filter, where the registry filter does not take the customer registry setting correctly.  Volume Licensed customers can download this KB from the Download Center.

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  • Windows Embedded Blog

    July 2012 Optional Updates are on ECE for Standard 7

    The July 2012 Optional Updates are now available ont he ECE site for Windows Embedded Standard 7.

    The list below applies to Windows Embedded Standard 7 and Windows Embedded Standard 7 SP1.

    • KB2654644 - This is a USB driver update rollup which includes the latest Embedded USB boot drivers.  Note that KB2533552 is a pre-requisite for this KB.
    • KB2721923 - This update fixes an issue with the Registry Filter, where the registry filter does not take the customer registry setting correctly.

    Note: The July Optional Update for Windows Embedded Standard 7 is affected by the issue described in MIcrosoft Security Advisory 2749655, in which the digital signature on files produced and signed by Microsoft will expire prematurely.  To resolve the issue for the July Optional Update for Windows Embedded Standard 7, install the September update.

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  • Windows Embedded Blog

    Embedded Agility – Make All Work Visible – Part 2

    Posted By Phillip Cave
    Software Development Engineer

    Last time I presented the first part of this post. In this post I dive deeper into making work visible and discuss the pragmatic application of it.

    The introduction to this series on “Embedded Agility” summarized the transition and ongoing transformation of Windows Embedded to a delivery model based in Lean thinking. That first post outlined 3 basic tenets:

    1. Define small customer based experiences (user stories)
    2. Make all these experiences visible within the execution process in which they are delivered
    3. Manage the work in process of those experiences

    Now that we have our worked defined (infrastructure, discovery, implementation), our goal is to make it all visible.

    pic1There is an amazing psychology around visualizing and making our work tangible. I will go into small detail about how our senses (sight and touch) play a part in this. Suffice it to say when we make our work visible we tend to take on a different level of responsibility for it and our decision making is affected by it in a positive way.

    Our world is composed of “bits”. The experience we deliver to customers is the culmination of the assembly of a lot of bits. Our customers do not care about the bits, they care about the experience. Our customers do not care about our roles of who works on those bits; they care about getting the experience in a timely fashion. Our business relies on us to complete our bits quickly in order to realize the cash flow and tangible value associated with those bits.

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