topic Re: DCD for Hyperram on iMXRT1170 in i.MX RT Crossover MCUs

DCD for Hyperram on iMXRT1170

Masmiseim — Thu, 25 Sep 2025 12:00:48 GMT

Hello NXP team,

In our own PCB design based on the iMXRT1170 and external SD-RAM, we initialized this via Device Controller Driver (DCD). We were able to create the required data structure with MCUXpresso Config Tools, using an example from the SDK as a starting point. This works very well and reliably.

In a new design, we want to use a Hyperram module on the FlexSPI2 of the iMXRT1170 instead of SD-RAM. Unfortunately, I couldn't find a corresponding DCD example, or better yet, a project file for the MCUXpresso Config Tools.

Can you provide an MCUXpresso Config Tools project file for Hyperram initialization? It does not necessarily have to be for the iMXRT1170; an example for any controller in the RT family should be sufficient.
I would like to avoid having to implement initialization in the SystemInitHook function. The DCD variant with SD-RAM worked very simply and reliably.

We plan to use Winbond W958D8NBYA5I TR or ISSI IS66WVH32M8DALL-200B1LI-TR.

Thanks and best regards

Re: DCD for Hyperram on iMXRT1170

EdwinHz — Mon, 29 Sep 2025 20:21:30 GMT

Hi @Masmiseim,

We don't have a DCD configuration to initialize Hyperram. However, the following application notes might prove useful for your application:

How to Enable HyperRAM with i.MX RT

Advanced HyperRAM/PSRAM Usage on i.MX RT

BR,
Edwin.

Re: DCD for Hyperram on iMXRT1170

Masmiseim — Tue, 14 Apr 2026 12:05:23 GMT

Hello,

Sorry for the late reply. I just wanted to let you know that initializing the external HyperRAM via xmcd worked very well.

Best regards