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IAP and External flash

Question asked by jeff belz on Dec 29, 2017
Latest reply on Dec 31, 2017 by Clive One

I have 2 questions -

Q1:

Can IAP be used to update the internal flash from an external flash.  Here is what I want to do:

   1) Download code to the External flash from a remote location.  Such as Wifi OTA

   2) Have code running looking for new image in the the external flash, notify the user to update by pressing a 

       a button or two and then have the IAP program the internal flash with the new image.

 

Q2:

When performing IAP do you need twice the flash as your program.  For example, if I have a program that is 32k, do I need 64k to do an IAP.  Thought being I'm storing the new program in a section of flash and the the IAP copies that code the program flash.    OR does it just overwrite the original program with the new one in the same flash location

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