终于把433通讯整出来了，不过程序空间快不够了要好好优化一下

Motor_Controller2.ioc

@@ -1,12 +1,14 @@
 #MicroXplorer Configuration settings - do not modify
 File.Version=6
+GPIO.groupedBy=Group By Peripherals
 KeepUserPlacement=false
 Mcu.Family=STM32F0
 Mcu.IP0=ADC
 Mcu.IP1=NVIC
 Mcu.IP2=RCC
 Mcu.IP3=SYS
-Mcu.IPNb=4
+Mcu.IP4=TIM14
+Mcu.IPNb=5
 Mcu.Name=STM32F030F4Px
 Mcu.Package=TSSOP20
 Mcu.Pin0=PF0-OSC_IN
@@ -15,6 +17,7 @@ Mcu.Pin10=PA9
 Mcu.Pin11=PA13
 Mcu.Pin12=PA14
 Mcu.Pin13=VP_SYS_VS_Systick
+Mcu.Pin14=VP_TIM14_VS_ClockSourceINT
 Mcu.Pin2=PA0
 Mcu.Pin3=PA1
 Mcu.Pin4=PA2
@@ -23,18 +26,20 @@ Mcu.Pin6=PA4
 Mcu.Pin7=PA5
 Mcu.Pin8=PA6
 Mcu.Pin9=PA7
-Mcu.PinsNb=14
+Mcu.PinsNb=15
 Mcu.ThirdPartyNb=0
 Mcu.UserConstants=
 Mcu.UserName=STM32F030F4Px
 MxCube.Version=6.3.0
 MxDb.Version=DB.6.0.30
+NVIC.EXTI2_3_IRQn=true\:0\:0\:false\:false\:true\:true\:true
 NVIC.ForceEnableDMAVector=true
 NVIC.HardFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false
 NVIC.NonMaskableInt_IRQn=true\:0\:0\:false\:false\:true\:false\:false
 NVIC.PendSV_IRQn=true\:0\:0\:false\:false\:true\:false\:false
 NVIC.SVC_IRQn=true\:0\:0\:false\:false\:true\:false\:false
 NVIC.SysTick_IRQn=true\:3\:0\:false\:false\:true\:false\:true
+NVIC.TIM14_IRQn=true\:0\:0\:false\:false\:true\:true\:true
 PA0.GPIOParameters=GPIO_Label
 PA0.GPIO_Label=ADC_CH0
 PA0.Locked=true
@@ -53,11 +58,12 @@ PA2.GPIO_PuPd=GPIO_PULLDOWN
 PA2.GPIO_Speed=GPIO_SPEED_FREQ_HIGH
 PA2.Locked=true
 PA2.Signal=GPIO_Output
-PA3.GPIOParameters=GPIO_PuPd,GPIO_Label
-PA3.GPIO_Label=U_R
-PA3.GPIO_PuPd=GPIO_PULLDOWN
+PA3.GPIOParameters=GPIO_PuPd,GPIO_Label,GPIO_ModeDefaultEXTI
+PA3.GPIO_Label=infeaed
+PA3.GPIO_ModeDefaultEXTI=GPIO_MODE_IT_RISING_FALLING
+PA3.GPIO_PuPd=GPIO_PULLUP
 PA3.Locked=true
-PA3.Signal=GPIO_Input
+PA3.Signal=GPXTI3
 PA4.GPIOParameters=GPIO_PuPd,GPIO_Label
 PA4.GPIO_Label=I_R
 PA4.GPIO_PuPd=GPIO_PULLDOWN
@@ -125,7 +131,7 @@ ProjectManager.StackSize=0x400
 ProjectManager.TargetToolchain=STM32CubeIDE
 ProjectManager.ToolChainLocation=
 ProjectManager.UnderRoot=true
-ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true
+ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_ADC_Init-ADC-false-HAL-true,4-MX_TIM3_Init-TIM3-false-HAL-true
 RCC.AHBFreq_Value=48000000
 RCC.APB1Freq_Value=48000000
 RCC.APB1TimFreq_Value=48000000
@@ -139,13 +145,20 @@ RCC.SYSCLKFreq_VALUE=48000000
 RCC.SYSCLKSource=RCC_SYSCLKSOURCE_PLLCLK
 RCC.TimSysFreq_Value=48000000
 RCC.USART1Freq_Value=48000000
+SH.GPXTI3.0=GPIO_EXTI3
+SH.GPXTI3.ConfNb=1
 SH.SharedAnalog_PA0.0=GPIO_Analog
 SH.SharedAnalog_PA0.1=ADC_IN0,IN0
 SH.SharedAnalog_PA0.ConfNb=2
 SH.SharedAnalog_PA1.0=GPIO_Analog
 SH.SharedAnalog_PA1.1=ADC_IN1,IN1
 SH.SharedAnalog_PA1.ConfNb=2
+TIM14.IPParameters=Prescaler,Period
+TIM14.Period=100-1
+TIM14.Prescaler=48-1
 VP_SYS_VS_Systick.Mode=SysTick
 VP_SYS_VS_Systick.Signal=SYS_VS_Systick
+VP_TIM14_VS_ClockSourceINT.Mode=Enable_Timer
+VP_TIM14_VS_ClockSourceINT.Signal=TIM14_VS_ClockSourceINT
 board=custom
 isbadioc=false