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Last Post 23 Jan 2006 10:35 AM by  jpavlik
New Boot Loader
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mmcclure@keydevices.com
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05 Oct 2005 09:54 AM
    I am interested in experimenting with using eboot on our logic PXA dev board to boot into Windows CE. I will be referencing the MDSN article "How to Develop a Boot Loader".

    I have a JTAG programmer. What caveats should I be aware of before doing this? Are there any non-standard StartUp initialization functions related to this module that I need to be aware of?

    When I want to go back to Logic Loader, can you supply me with JTAG ready files? I don't see any available in the downloads section.

    Regards,

    Mark
    kurtl@logicpd.com
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    05 Oct 2005 02:42 PM
    mcclmark,
    Most of our customers use Logic Loader to automatically jump to their winCE production images using the built in scripting capabilities of Lolo. The benefit is they don't have to develop their own bootloader. Check out chapter 5 of this document to see an example of booting to winCE.
    http://www.logicpd.com/do...3/70000142_Rev_G.pdf You will have to register your kit to get access to the file.

    A custom boot loader will have to setup power management states, clock controller, FLASH interface, UART interface, SDRAM controller, and any custom interfaces your end product will require.

    If you remove Lolo from flash, it can be restored using a JTAG device to load a RAM image of Lolo to burn a FLASH image. Both files are available in .elf format at the link below.
    http://www.logicpd.com/do...oads/611/1003201.zip

    Depending on your JTAG device, you will also need to write a script to setup the CPU SDRAM controller before you can load the Lolo image into SDRAM.

    Is there a reason why Lolo won't work for your application? Is there a feature missing that you could benefit from?
    mmcclure@keydevices.com
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    06 Oct 2005 09:13 AM
    Eventually we will develop an all-in-one product without your card engine to save space and money. Since there seems to be a fair amount of documentation on eboot, we though we would give it a shot to avoid licensing LOLO. Thanks for the feedback.
    jpavlik
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    23 Jan 2006 10:35 AM
    Did you ever have any luck using eboot?


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