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BF516F gone obsolete!!!

Hi,

I've received a peculiar letter from analog devices stating that the internal flash vendor for the BF51xF has discontinued the 4Mbit flash used in these products. Therefore the BF516F has become obsolete and its PPP replacement is BF518F.

Another change is that the new flash used is 3.3V.

This is very alarming as I am using the BF516F with 1.8[V] Vddio and VddFlash in several of my products!!! Furthermore I have already coded my own flash driver for the purpose of implementing a boot-loader capable of uploading new software via Ethernet.

Is there any place I can find exact specifications of the required design changes, how to work with the new flash, new flash driver etc?

In the official product site there is no mention of this change, and the product status is stated as "in production"

Help!!!!!!

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  • Hi There,

    Thanks for your answer. I think I can manage the software given what you've told me and using your flash programmer example. However, could you be more specific regarding the changes required in my hardware design? Alternatively please direct me to a document that summarizes all the required changed... (I think its funny that there isn't one available in the product page - how do you expect customers to prepare for this change, if the product already stopped production and there is still no documentation?)

    Specifically what I need to know is:

    Currently my design used Vddcore = 1.3[V], Vddmem = VddIO = VddFlash = (all others that I might have forgotten) = 1.8[V].

    Which of the above power domains must be changed to support the new flash? Can I change only VddFlash and still work with VddIO (and all the rest) = 1.8[V] - in other words do you have some internal level shifters to support SPI communications with the new flash regardless of their respective voltage levels?

    Thanks.

Reply
  • Hi There,

    Thanks for your answer. I think I can manage the software given what you've told me and using your flash programmer example. However, could you be more specific regarding the changes required in my hardware design? Alternatively please direct me to a document that summarizes all the required changed... (I think its funny that there isn't one available in the product page - how do you expect customers to prepare for this change, if the product already stopped production and there is still no documentation?)

    Specifically what I need to know is:

    Currently my design used Vddcore = 1.3[V], Vddmem = VddIO = VddFlash = (all others that I might have forgotten) = 1.8[V].

    Which of the above power domains must be changed to support the new flash? Can I change only VddFlash and still work with VddIO (and all the rest) = 1.8[V] - in other words do you have some internal level shifters to support SPI communications with the new flash regardless of their respective voltage levels?

    Thanks.

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