sQSPI driving display

[jLYV3r]

Hey there!

I am currently in the process of building a module that drives a high-res OLED display using QSPI. Until now I've used a RP2350 with PIO and DMA for this and it works pretty smooth.
However, as I am planning to integrate Bluetooth to the project, I don't want to have 2 MCUs on board, and the nRF54L15 looks like a very interesting alternative.

However, I am afraid that getting all the QSPI stuff working again will be a bit of a hassle, considering that this I have no experience with Nordic chips. Nevertheless, I've stumbled upon the "sQSPI and display usage" article (https://docs.nordicsemi.com/bundle/ncs-latest/page/nrfxlib/softperipheral/doc/sQSPI/display.html) which looks quite promising.

The following diagram shows how the display driver expects data to be sent. Commands are sent using 1wire.

My question now is, if anyone has experience with this? At least to me it seems that most of these QSPI display drivers operate pretty much the same, so is the article linked above somehow related to that schema?

BR

[AHaug]

Hello!,

Glad you're interested in the nrf54l15 for this purpose. As you're probably already aware the 54L15 does not have a physical QSPI, but it has the sQSPI instead. The link you posted together with https://docs.nordicsemi.com/bundle/ncs-latest/page/nrfxlib/softperipheral/doc/sQSPI/nrf54L15_porting_v1_1_0.html are the current guides we have for using the software based peripheral. 

Since you also mention that you're relatively new to Nordic SoCs I'll plug our academy courses as well at https://academy.nordicsemi.com/. I strongly recommend a walkthrough of both the fundamentals and intermediate course (as well as the BLE topic since you mention that) to familiarize yourself with the nRF54l15dk and the SDK.

At least to me it seems that most of these QSPI display drivers operate pretty much the same,

They should be roughly the same, yes unless they also have modes for other SPI modes (single, duo, quad, octo).

Kind regards,
Andreas