Bug at STM32F3xx/stm32_registry.h?

[DBS06]

Hi,

Currently I am working with Low-Power and wakeup events from different sources and I looked into the “STM32F3xx/stm32_registry.h” for the number of available EXTI-Lines and I recognized that in Line 133 that there is

Code: Select all

[…]
/* EXTI attributes.*/
#define STM32_EXTI_NUM_LINES                34
[…]

written.

But according to “RM0316 Reference manual - STM32F303xB/C/D/E, STM32F303x6/8, STM32F328x8, STM32F358xC, STM32F398xE advanced ARM®-based MCUs” paragraph “14.2.6 External and internal interrupt/event line mapping” the STM32F3xx has 36 interrupt/event lines.

Could this be a mistake/bug in “STM32F3xx/stm32_registry.h”?

kind regards
Philipp

[Giovanni]

Hi,

The EXT driver does not consider sources marked as "internal", you may notice that ISRs for those are not defined.

Note that EXT is meant to be removed in HAL 6 (at least one year away), it will be replaced by PAL callbacks for GPIO and a new "system events" unit still TBD that will handle everything asynchronous in the MCU. EXT is probably the least elegant part of the whole HAL.

Giovanni