I want to use the existing M4F chip with external SPI interface Flash and SPI interface PSRAM to implement it, but I have encountered difficulties

Feature requests
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#1

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I have run my voice recognition model on the development board of my ARDUINO Nano RP2040, which is very good. However, now I need three such boards to complete my creative project, but the price of this development board is not friendly. I want to use the existing M4F chip with external SPI interface Flash and SPI interface PSRAM to implement it, but I have encountered difficulties. I don’t know how the external Flash and PSRAM communicate with my model to make it work. Can you answer this for me? thanks

#2

Hi @Arch,

Unfortunately, this seems a little out of scope for Edge Impulse. How flash and PSRAM communicate will be a function of how the particular board manufacturer set up their hardware and supporting software. You will need to ask the manufacturer’s support channels for help on figuring out how the board is configured for external flash and PSRAM.

#3

Thank you for your answer. I will continue to search for ways.

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