It is for a custom board based on the STM32H563 MCU.

All the NRF configurations uses the SOC_NRFxxxx to select the CONFIG_TFM_BOARD, which I think is a more generic way as it is the MCU and not the actual board that sets the TF-M options and limitations.

But if you prefer to use the nucleo_h563zi to select the CONFIG_TFM_BOARD, then it is relatively simple to set it for custom boards.

This can be done by adding

config TFM_BOARD
default "stm/nucleo_h563zi"

In my custom board's Kconfig.defconfig file

Best Regards

Mogens

From: Ronan GABOU <Ronan.GABOU@st.com>
Sent: Thursday, March 19, 2026 16:08
To: Mogens Lund <Mogens.Lund@prevas.dk>; tf-m@lists.trustedfirmware.org <tf-m@lists.trustedfirmware.org>
Subject: RE: TF-M to stm32h563

Hello,

For a better understanding of your request, on which board (ST Nucleo or your design) you need to port STM32H563 MCU ?

Thank you

Ronan

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Description automatically generated

Ronan GABOU | Tel: +33 1 58 07 80 19

MDG / General Purpose Microcontroller Sub-Group / Wireless Business Line / Cellular

ST online: [www.st.com]www.st.com

online: [www.st.com]www.st.com

From: Ronan GABOU
Sent: Wednesday, March 18, 2026 2:10 PM
To: 'Mogens Lund' <Mogens.Lund@prevas.dk>; tf-m@lists.trustedfirmware.org
Subject: RE: TF-M to stm32h563

Hello,

As it’s the first time we (ST TFM team) have this request, we are checking internally with managers and marketing and will come back as soon as possible.

Ronan,

Shape, rectangle

Description automatically generated

Ronan GABOU | Tel: +33 1 58 07 80 19

MDG / General Purpose Microcontroller Sub-Group / Wireless Business Line / Cellular

ST online: [www.st.com]www.st.com

online: [www.st.com]www.st.com

From: Mogens Lund via TF-M <tf-m@lists.trustedfirmware.org>
Sent: Tuesday, March 17, 2026 11:24 AM
To: tf-m@lists.trustedfirmware.org
Subject: [TF-M] TF-M to stm32h563

Is there any plans to include the STM32H563 as a supported TF-M platform ?

If I clone the existing STM32H573_DK and adapts it to the STM32H563, what is then the process to get it upstreamed ?

Med venlig hilsen / Best regards

Mogens Lund

SW Designer

Niels Jernes vej 14, 9220 Aalborg Ø, Denmark
Mobile: +45 2677 8879
Switchboard: +45 3315 9090
mogens.lund@prevas.dk
www.prevas.dk

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