Problem with STM32F746 : EXTI15_10_IRQ is constantly fired

[juozas]

Posted on March 29, 2018 at 13:55

Hi, today I have observed and solved a problem when I started to develop my simple program for NUCLEO-F746ZG. A problem  was following: EXTI15_10_IRQHandler interrupt fired always - regardless of my changes in program. By observing system register SYSCFG content in my debugger, I have found, that content of SYSCFG always is zero, regardless of executing of the line LL_SYSCFG_SetEXTISource(LL_SYSCFG_EXTI_PORTC, LL_SYSCFG_EXTI_LINE13);

My code was generated by newest CubeMX with my selection USE_FULL_LL_DRIVER (without Ethernet and without USB support) and manually ported to Embitz. I have found solution - to add a line LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_SYSCFG);

Interestingly - why CubeMX do not add this line!

Best regards.

[Imen.D]

Posted on March 30, 2018 at 11:47

Hello

Kimtys.Juozas

Thank you for reported this issue.

This issue is raised internally for check and investigation.

Best Regards,

Imen

[Nawres GHARBI]

Posted on May 03, 2018 at 16:05

Hi

Kimtys.Juozas

‌,

This issue will be fixed next release 4.0 of MX.

enjoy using MX