nRF5340 QSPI Custom Driver for ADC

[CBaron]

We are developing a custom board with an ADC device that supports QSPI.  Our application requires throughput speeds only available using QSPI.   

All the available driver examples are for flash devices.   Is there support for using QSPI with other types of devices and if so, are there any examples of QSPI drivers available?

Thanks!

[Kenneth]

Hello,

The QSPI peripherals have been designed and tested for communicating with an external flash memory, ref:
https://docs.nordicsemi.com/bundle/ps_nrf5340/page/qspi.html 

The QSPI commands is for flash memory, it is unfortunately not a general-purpose SPI controller for arbitrary SPI peripherals.

So in this case I suggest you instead take a look at the high speed SPI peripheral (SPIM4), which can run up to 32MHz, hopefully that is sufficient in your case:
https://docs.nordicsemi.com/bundle/ps_nrf5340/page/spim.html 

Kenneth