RTEMS | bsps/arm/stm32f4: Fix incorrect bit definition for EXTI line 22 (!1132)

Sun Mar 15 11:38:32 UTC 2026

Mohamed Ayman created a merge request: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1132

Project:Branches: mohamedayman23/rtems:fix-incorrect-bit-definition to rtems/rtos/rtems:main
Author:   Mohamed Ayman

bsps/arm/stm32f4: Fix incorrect bit definition for EXTI line 22

The macro STM32F4_EXTI_LINE22 was incorrectly defined as BSP_BIT32(21), which overlaps with STM32F4_EXTI_LINE21. According to the STM32F4 reference manual, EXTI line 22 corresponds to bit position 22.

Update STM32F4_EXTI_LINE22 to use BSP_BIT32(22) so that each EXTI line maps to the correct bit in the EXTI registers.

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View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1132
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