[bsp][stm32 hal drv_gpio]If there is no pull-up or pull-down outside, there...

[bsp][stm32 hal drv_gpio]If there is no pull-up or pull-down outside, there will be problems with just setting "GPIO_InitStruct.Pull = GPIO_NOPULL".

bsp/stm32/libraries/HAL_Drivers/drv_gpio.c

@@ -486,18 +486,20 @@ static rt_err_t stm32_pin_irq_enable(struct rt_device *device, rt_base_t pin,
         irqmap = &pin_irq_map[irqindex];
 
         /* Configure GPIO_InitStructure */
-        GPIO_InitStruct.Pin = index->pin;
-        GPIO_InitStruct.Pull = GPIO_NOPULL;
+        GPIO_InitStruct.Pin = index->pin;        
         GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
         switch (pin_irq_hdr_tab[irqindex].mode)
         {
         case PIN_IRQ_MODE_RISING:
+            GPIO_InitStruct.Pull = GPIO_PULLDOWN;
             GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
             break;
         case PIN_IRQ_MODE_FALLING:
+            GPIO_InitStruct.Pull = GPIO_PULLUP;
             GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
             break;
         case PIN_IRQ_MODE_RISING_FALLING:
+            GPIO_InitStruct.Pull = GPIO_NOPULL;
             GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING;
             break;
         }

bsp/stm32f10x-HAL/drivers/drv_gpio.c

@@ -788,17 +788,19 @@ rt_err_t stm32_pin_irq_enable(struct rt_device *device, rt_base_t pin,
         drv_clock_enable(gpio_pin);
         /* Configure GPIO_InitStructure */
         GPIO_InitStruct.Pin = get_st_pin(gpio_pin);
-        GPIO_InitStruct.Pull = GPIO_NOPULL;
         GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
         switch (pin_irq_hdr_tab[irqindex].mode)
         {
         case PIN_IRQ_MODE_RISING:
+            GPIO_InitStruct.Pull = GPIO_PULLDOWN;
             GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
             break;
         case PIN_IRQ_MODE_FALLING:
+            GPIO_InitStruct.Pull = GPIO_PULLUP;
             GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
             break;
         case PIN_IRQ_MODE_RISING_FALLING:
+            GPIO_InitStruct.Pull = GPIO_NOPULL;
             GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING;
             break;
         }

bsp/stm32f429-apollo/drivers/drv_gpio.c

@@ -1757,17 +1757,19 @@ rt_err_t stm32_pin_irq_enable(struct rt_device *device, rt_base_t pin,
         index->rcc();
         /* Configure GPIO_InitStructure */
         GPIO_InitStruct.Pin = index->pin;
-        GPIO_InitStruct.Pull = GPIO_NOPULL;
         GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
         switch (pin_irq_hdr_tab[irqindex].mode)
         {
         case PIN_IRQ_MODE_RISING:
+            GPIO_InitStruct.Pull = GPIO_PULLDOWN;
             GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
             break;
         case PIN_IRQ_MODE_FALLING:
+            GPIO_InitStruct.Pull = GPIO_PULLUP;
             GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
             break;
         case PIN_IRQ_MODE_RISING_FALLING:
+            GPIO_InitStruct.Pull = GPIO_NOPULL;
             GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING;
             break;
         }

bsp/stm32f4xx-HAL/drivers/drv_gpio.c

@@ -1757,17 +1757,19 @@ static rt_err_t stm32_pin_irq_enable(struct rt_device *device, rt_base_t pin,
         drv_clock_enable(gpio_pin);
         /* Configure GPIO_InitStructure */
         GPIO_InitStruct.Pin = get_st_pin(gpio_pin);
-        GPIO_InitStruct.Pull = GPIO_NOPULL;
         GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
         switch (pin_irq_hdr_tab[irqindex].mode)
         {
         case PIN_IRQ_MODE_RISING:
+            GPIO_InitStruct.Pull = GPIO_PULLDOWN;
             GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
             break;
         case PIN_IRQ_MODE_FALLING:
+            GPIO_InitStruct.Pull = GPIO_PULLUP;
             GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
             break;
         case PIN_IRQ_MODE_RISING_FALLING:
+            GPIO_InitStruct.Pull = GPIO_NOPULL;
             GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING;
             break;
         }

bsp/stm32l476-nucleo/drivers/drv_gpio.c

@@ -738,17 +738,19 @@ rt_err_t stm32_pin_irq_enable(struct rt_device *device, rt_base_t pin,
         index->rcc();
         /* Configure GPIO_InitStructure */
         GPIO_InitStruct.Pin = index->pin;
-        GPIO_InitStruct.Pull = GPIO_NOPULL;
         GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
         switch (pin_irq_hdr_tab[irqindex].mode)
         {
         case PIN_IRQ_MODE_RISING:
+            GPIO_InitStruct.Pull = GPIO_PULLDOWN;
             GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
             break;
         case PIN_IRQ_MODE_FALLING:
+            GPIO_InitStruct.Pull = GPIO_PULLUP;
             GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
             break;
         case PIN_IRQ_MODE_RISING_FALLING:
+            GPIO_InitStruct.Pull = GPIO_NOPULL;
             GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING;
             break;
         }