Using OCTOSPI with 4 pins. (IO[7:4])

[Freedom_Neo]

I use MX25LM51245GMI00 flash. But I dont have few pins so I use 4 pins for OCTO SPI. Does it work 4 pins OCTOSPI? What do I it for 4 pins OCTOSPI. What changes do I need to make

[TDK]

That chip needs all 8 data lines connected per the datasheet. It has a 1-bit mode and an 8-bit mode.

[Freedom_Neo]

I am using below development tools

MCU: STM32H7B3IIT6

IDE: STM32CubeIDE Version: 1.8.0

GUI: TouchGFX Version: 4.18.1

SDRAM: IS45S16800F-7CTLA1-TR

FLASH: MX25LM51245GMI00

What it takes to adapt for QSPI. Can I use the following driver code for QSPI? How can I run it as QSPI.

[TDK]

Open up the datasheet for MX25LM51245GMI00. Do you see a quad-spi mode available?

https://www.macronix.com/Lists/Datasheet/Attachments/7841/MX25LM51245G,%203V,%20512Mb,%20v1.1.pdf

[Freedom_Neo · Accepted solution]

I dont see quad-spi mode. This FLASH for octo spi. MX25LM51245GMI00 dont support quad-spi. :(