STM32H735G-DK

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QSPI Flash Programming Support

Before continuing with this article, please read the generic article about QSPI flash programming support on STM32H7 devices (STM32H7 (Q)SPI support).
In contrast to the other QSPI flash programming implementations for STM32, support has been added internally through the JLinkARM.dll and not through an open flash loader. So in case you need another pin config, please get in contact with Segger, regarding a configurable open flash loader.
For further information how to include a open flash loader into your J-Link software, please refer to:
https://wiki.segger.com/Adding_Support_for_New_Devices#Using_a_Precompiled_Flashloader

Quad-SPI Interface Pins

The ST STM32H735-DK uses the following port pins to interface the (Octa)SPI flash.

Alternate function Port / Pin
OCTASPI_CLK PF10
OCTASPI_CS PG6
OCTASPI_BK0_D0 PD11
OCTASPI_BK0_D1 PD12
OCTASPI_BK0_D2 PE2
OCTASPI_BK0_D3 PD13
OCTASPI_BK1_D0 PD4
OCTASPI_BK1_D1 PD5
OCTASPI_BK1_D2 PG9
OCTASPI_BK1_D3 PD7