From 0b8a55a9e207362fd513c8bb1d33fb8f552cdcdb Mon Sep 17 00:00:00 2001
From: hasslesstech <hasslesstech@tutanota.com>
Date: Sat, 8 Mar 2025 14:43:54 +0200
Subject: [PATCH] add button test at the board startup, part 2

---
 Core/Inc/stm32f4xx_it.h |  1 +
 Core/Src/main.c         |  7 +++----
 Core/Src/stm32f4xx_it.c | 16 +++++++++++++++-
 test1.ioc               |  2 +-
 4 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/Core/Inc/stm32f4xx_it.h b/Core/Inc/stm32f4xx_it.h
index fc89766..dd2178f 100644
--- a/Core/Inc/stm32f4xx_it.h
+++ b/Core/Inc/stm32f4xx_it.h
@@ -58,6 +58,7 @@ void SysTick_Handler(void);
 /* USER CODE BEGIN EFP */
 
 void EXTI0_IRQHandler(void);
+void EXTI9_5_IRQHandler(void);
 
 /* USER CODE END EFP */
 
diff --git a/Core/Src/main.c b/Core/Src/main.c
index 8f469ed..2766bad 100644
--- a/Core/Src/main.c
+++ b/Core/Src/main.c
@@ -53,7 +53,7 @@ void ((*executors[])(void)) = {
 		external_temp_show_fahrenheit
 };
 
-int current_executor_id = 0;
+size_t current_executor_id = 0;
 
 /* USER CODE END PV */
 
@@ -174,14 +174,13 @@ int main(void)
   HAL_NVIC_EnableIRQ(EXTI0_IRQn);
 
   // switch mode for SW5 (alternative advancing method)
-  GPIO_InitTypeDef GPIO_InitStruct = {0};
   GPIO_InitStruct.Pin = GPIO_PIN_8;
   GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
 
-  HAL_NVIC_SetPriority(EXTI8_IRQn, 0, 0);
-  HAL_NVIC_EnableIRQ(EXTI8_IRQn);
+  HAL_NVIC_SetPriority(EXTI9_5_IRQn, 0, 0);
+  HAL_NVIC_EnableIRQ(EXTI9_5_IRQn);
 
 
 
diff --git a/Core/Src/stm32f4xx_it.c b/Core/Src/stm32f4xx_it.c
index 4364047..66992ee 100644
--- a/Core/Src/stm32f4xx_it.c
+++ b/Core/Src/stm32f4xx_it.c
@@ -41,7 +41,7 @@
 
 /* Private variables ---------------------------------------------------------*/
 /* USER CODE BEGIN PV */
-extern int current_executor_id;
+extern size_t current_executor_id;
 /* USER CODE END PV */
 
 /* Private function prototypes -----------------------------------------------*/
@@ -214,4 +214,18 @@ void EXTI0_IRQHandler(void)
 	HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_0);
 }
 
+void EXTI9_5_IRQHandler(void)
+{
+	GPIOD->ODR = 0x1000;
+
+	current_executor_id += 1;
+	current_executor_id %= 2;
+
+	for (int i = 900000; i > 0; i--) asm("nop");
+
+	GPIOD->ODR = 0x0000;
+
+	HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_8);
+}
+
 /* USER CODE END 1 */
diff --git a/test1.ioc b/test1.ioc
index 2a1afde..b6aa7c3 100644
--- a/test1.ioc
+++ b/test1.ioc
@@ -157,4 +157,4 @@ SH.ADCx_IN9.ConfNb=1
 VP_SYS_VS_Systick.Mode=SysTick
 VP_SYS_VS_Systick.Signal=SYS_VS_Systick
 board=custom
-isbadioc=true
+isbadioc=false