STM32F446 Quad SPI pinout

Asantos · ‎2015-01-22

Posted on January 22, 2015 at 12:35

Hi,

I would like to know what is the difference between the pins QUADSPI_BK2_IO3(PE10) and QUADSPI_BK1_IO3 (PA1)?

There are only one quadspi interface on the STM32F446, why BK1 and BK2?

Can I use the pins QUADSPI_BK1_IO1 and QUADSPI_BK2_IO3 for the same quad spi flash memory?

Ari.

Amel NASRI · ‎2015-03-06

Posted on March 06, 2015 at 10:45

Hi Ari,

The STM32F446 Quad SPI allows to interface 2 memories.

So to intterface only one memory, you may use BK1 or BK2.

If 2 memories are required, then you have to configure both pins.

-Mayla-

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