commit 5c017953044a291b6abcb82bacd034b33efbe61f
author Eya <aya.selmi1@st.com> Thu Feb 02 10:30:40 2023 +0100
committer Eya <aya.selmi1@st.com> Thu Feb 02 17:15:21 2023 +0100
tree 08f5b4ffa7ab60f0af6236a0fe83bf6e006fa83d
parent f0cfb43dcb15d8c8771f19f062436a1ef5c8f008

[HAL][EXTI] Fix computation of pExtiConfig->GPIOSel in HAL_EXTI_GetConfigLine()

Src/stm32f4xx_hal_exti.c

diff --git a/Src/stm32f4xx_hal_exti.c b/Src/stm32f4xx_hal_exti.c
index 04b5215..0804555 100644
--- a/Src/stm32f4xx_hal_exti.c
+++ b/Src/stm32f4xx_hal_exti.c
@@ -300,8 +300,8 @@
     {
       assert_param(IS_EXTI_GPIO_PIN(linepos));
 
-      regval = (SYSCFG->EXTICR[linepos >> 2u] << 16u );
-      pExtiConfig->GPIOSel = ((regval << (SYSCFG_EXTICR1_EXTI1_Pos * (3uL - (linepos & 0x03u)))) >> 28u);
+      regval = SYSCFG->EXTICR[linepos >> 2u];
+      pExtiConfig->GPIOSel = (regval >> (SYSCFG_EXTICR1_EXTI1_Pos * (linepos & 0x03u))) & SYSCFG_EXTICR1_EXTI0;
     }
   }