cubemx配置PE2为外部中断

2 years ago · 519fd46b76
2 changed files with 4 additions and 2 deletions
--- a/LWIP.ioc
+++ b/LWIP.ioc
@ -141,7 +141,7 @@ PD3.GPIO_Label=ETH_RST
 PD3.Locked=true
 PD3.Signal=GPIO_Output
 PE2.Locked=true
-PE2.Signal=GPIO_Input
+PE2.Signal=GPXTI2
 PE3.GPIOParameters=GPIO_PuPd
 PE3.GPIO_PuPd=GPIO_PULLUP
 PE3.Locked=true
@ -228,6 +228,8 @@ RCC.VCOI2SOutputFreq_Value=384000000
 RCC.VCOInputFreq_Value=2000000
 RCC.VCOOutputFreq_Value=336000000
 RCC.VcooutputI2S=192000000
+SH.GPXTI2.0=GPIO_EXTI2
+SH.GPXTI2.ConfNb=1
 SH.S_TIM4_CH1.0=TIM4_CH1,Encoder_Interface
 SH.S_TIM4_CH1.ConfNb=1
 SH.S_TIM4_CH2.0=TIM4_CH2,Encoder_Interface
--- a/Src/gpio.c
+++ b/Src/gpio.c
@ -61,7 +61,7 @@ void MX_GPIO_Init(void)

  /*Configure GPIO pin : PE2 */
  GPIO_InitStruct.Pin = GPIO_PIN_2;
-  GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
+  GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);