We need guidance on the easiest way to add additional memory to the Duo.
We will add a memory IC to the mating board
We use native Duo and Arduino libraries.
What do you use the memory IC for? For storing volatile or non-volatile data?
Guohul, thanks for the quick reply. This will be exclusively for volatile memory only.
We’ve run into heap problems recently and believe this will solve that issue, as well as extend our content capability.
Sorry volatile DATA only not MEMORY.
Sorry @pat-babbled, The Duo does not support extending memory for storing volatile data.
Thanks, does it support extending memory for storing non-volatile data?
What would the equivalent PINs be for the DUO?
Yes, as long as you implement the driver for the external flash. While there is already an external SPI flash on the Duo and you access it using the APIs described here: https://github.com/redbear/Duo/blob/master/docs/programming_reference_manual.md#external-spi-flash
Here is the pin mapping of the Duo: https://github.com/redbear/Duo/blob/master/docs/duo_introduction.md#block-diagram