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samuelpeterdelaney
samuelpeterdelaney
Associate
August 5, 2015
Question

STM32F746G Discovery Board SPI

  • August 5, 2015
  • 1 reply
  • 550 views
Posted on August 05, 2015 at 16:02

Hi,

I've just got hold of an STM32F7 Discovery Board and I was wondering about how many SPI interfaces it had exposed. Although the MCU is said to have six, I suspect only one is exposed through the Arduino shield header looking at user manual?

Is this correct or am I missing something pretty basic?

Many thanks,

Sam

#stm32f7
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1 reply

Tesla DeLorean
Tesla DeLorean
Guru
August 5, 2015
Posted on August 05, 2015 at 19:37

There are a finite number of pins, the board is heavily populated with external parts/interfaces (SDRAM, LCD, DCMI, ETHERNET, SDIO).

Your easy expansion options are pretty much limited to the pins exposed on the Arduino shield interface. This is targeted as a board with pretty much full utilization of resources, not as a break-out board. You'd want to cross check the pins listed in the manual against the datasheet for the BGA.

There may be better opportunities with 64/100/144-pin LQFP packages to find break-out boards, or to do a desolder/replace on other STM32 boards.

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