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Last Post 07 Dec 2004 08:11 AM by  mikea@logicpd.com
Flash Programming
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tsetsinas
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03 Dec 2004 02:04 AM
    Hi,

    we want to program the flash memory without using BoLo/LoLo. We have erased the flash and we are trying to burn our image at address 0 with arm realview ice tools. We use a program algorithm from intel and we get Low programming voltage detected from flash status register. We also checked this signal (FL_VPEN) with oscilloscope and is always low. Device commands that don't check VPEN (eg. read device id) work fine. Can you suggest something? Is it necessary to use BoLo?

    Thanks
    mikea@logicpd.com
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    07 Dec 2004 08:11 AM
    The VPEN signal is controlled with the onboard IO Controller. The IO Controller has a register called 'Flash Register'. I believe bit 0 of this register controls FL_VPEN. Please check the IO Controller spec for details.

    Thanks,
    -Mike A.

    Forums NXP SOMs and Development Kits LH75401 Card Engine and Development Kit
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