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Y CS
Y CS
Associate II
December 6, 2017
Question

In CubeMX (STM32F427) define two ports as GPIO_EXTI

  • December 6, 2017
  • 2 replies
  • 1001 views
Posted on December 06, 2017 at 19:03

In CubeMX (ver: 4.23 mcu: STM32F427) I'm trying to define two ports PE10 and PB10 as GPIO_EXTI10 (I need to get edge interrupt on either one).

However, in the 'Pinout' view, when I click GPIO_EXTI10 for PB10 and then for PE10, PB10 is erased (the green turn white). Am I trying to do something that is not possible at all or is it only a limitation of CubeMX?

Is there another way to do it in CubeMX?

#cubemx #stm32f4 #exti
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2 replies

waclawek.jan
waclawek.jan
Super User
December 6, 2017
Posted on December 06, 2017 at 19:12

There's no way to do it on the chip, that's why there's no way to do it in CubeMX.

Read the External interrupt/event line mapping subchapter of Interrupts chapter of RM0090.

JW

Y CS
Y CSAuthor
Associate II
December 6, 2017
Posted on December 06, 2017 at 19:16

That was quick... thank you for the reference, I'll read that.

Tesla DeLorean
Tesla DeLorean
Guru
December 6, 2017
Posted on December 06, 2017 at 20:14

Only one pin at each index, so can't have multiple Pin#10

Want PB10, PA11, PA12, etc

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