diff --git a/TrainCamp_zhangcheng_PLSR/app/src/plsr.c b/TrainCamp_zhangcheng_PLSR/app/src/plsr.c
index 52a36c4..b29e131 100644
--- a/TrainCamp_zhangcheng_PLSR/app/src/plsr.c
+++ b/TrainCamp_zhangcheng_PLSR/app/src/plsr.c
@@ -109,7 +109,7 @@ SEGMENT_PART currentSeg = {
     .currentPart = 1
     };
 PLSR plsr = {
-    .segmentAllNum = 4,
+    .segmentAllNum = 3,
     .defaultSpeed = 1000,
     .defaultAccSpeedTime = 5,
     .defaultDecSpeedTime = 10,
@@ -122,9 +122,9 @@ PLSR plsr = {
     .segment[2].pulseFreq = 6000,
     .segment[2].pulseNumber = 2000,
     .segment[2].jumpNumber = 0,
-    .segment[3].pulseFreq = 9000,
-    .segment[3].pulseNumber = 2000,
-    .segment[3].jumpNumber = 0,
+//    .segment[3].pulseFreq = 9000,
+//    .segment[3].pulseNumber = 2000,
+//    .segment[3].jumpNumber = 0,
     .startRunSegment = 0
 };
     
@@ -139,11 +139,12 @@ void PlsrModuleTask(void *pArg)
 
     res = GetTimObj("tim2", &tim2);
     res = GetTimObj("tim10", &tim10);
-                    
+    
+    tim2.init(&tim2, 0, 65535);
+    tim2.open(&tim2);
+    
     tim10.init(&tim10, 168 - 1, 65535);
-//    tim10.open(&tim10);
     tim10.registerIrq(&tim10, TimCallBack, &currentSeg);
-//    tim10.openIrq(&tim10);
     tim10.pwmInit(&tim10);
     tim10.pwmSetPulse(&tim10, TIM10->ARR);
 
@@ -227,8 +228,9 @@ void TimCallBack(void *pArg)
 {
     uint16_t reloadValue = 0;
     static int32_t pulseCount = 0;
-
+    static int32_t allcount = 0;
     pulseCount++;
+    allcount++;
     if (currentSeg.currentPart == 1)
     {
         switch (currentSeg.currentState)
@@ -245,7 +247,12 @@ void TimCallBack(void *pArg)
                 }
                 else
                     currentSpeed += currentSeg.inc;
-                    
+                
+                if (currentSpeed <= 1000)
+                    tim10.setPsc(&tim10, 2625 - 1);
+                else
+                    tim10.setPsc(&tim10, 3 - 1);
+                
                 reloadValue = 168000000 / (TIM10->PSC + 1) / (currentSpeed);
                 tim10.setPer(&tim10, reloadValue - 1);
                 tim10.pwmSetPulse(&tim10, TIM10->ARR / 2 + 1);              
@@ -259,7 +266,7 @@ void TimCallBack(void *pArg)
     }
     else if (currentSeg.currentPart == 2)
     {
-        if (pulseCount > currentSeg.secondPartNum - 4)
+        if (pulseCount > currentSeg.secondPartNum - 1)
         {
             if ((currentSegment == (plsr.segmentAllNum -1))
                     && (plsr.segment[currentSegment].jumpNumber == 0))
@@ -282,7 +289,7 @@ void TimCallBack(void *pArg)
     else if (currentSeg.currentPart == 3)
     {
         if (((currentSpeed - currentSeg.dec) <= 0)
-              || (pulseCount > currentSeg.thirdPartNum))
+              || (pulseCount > currentSeg.thirdPartNum - 1))
         {
             pulseCount = 0;
             currentSeg.currentPart = 1;
@@ -295,6 +302,12 @@ void TimCallBack(void *pArg)
             return;
         }
         currentSpeed -= currentSeg.dec;
+        
+        if (currentSpeed <= 1000)
+                    tim10.setPsc(&tim10, 2625 - 1);
+        else
+            tim10.setPsc(&tim10, 3 - 1);
+
         reloadValue = 168000000 / (TIM10->PSC + 1) / (currentSpeed);
         tim10.setPer(&tim10, reloadValue - 1);
         tim10.pwmSetPulse(&tim10, TIM10->ARR / 2 + 1);
@@ -433,13 +446,13 @@ static void FirstSegmentProc(SEGMENT_PART *segmentPart)
                 segmentPart->inc = segmentPart->inc - diffValue;
             }
             incAll += segmentPart->inc;
-            if (plsr.segment[currentSegment].pulseFreq <= 5000)
+            if (currentSpeed <= 1000)
             {
                 tim10.setPsc(&tim10, 2625 - 1);
             }   
             else
             {
-                tim10.setPsc(&tim10, 168 - 1);
+                tim10.setPsc(&tim10, 3 - 1);
             }
             if (currentSpeed != 0)
                 tim10.setPer(&tim10, 168000000 / (TIM10->PSC + 1) / currentSpeed);
diff --git a/TrainCamp_zhangcheng_PLSR/bsp/src/time.c b/TrainCamp_zhangcheng_PLSR/bsp/src/time.c
index 17e8e1f..4df429b 100644
--- a/TrainCamp_zhangcheng_PLSR/bsp/src/time.c
+++ b/TrainCamp_zhangcheng_PLSR/bsp/src/time.c
@@ -70,7 +70,20 @@ int8_t TimInit(TIM_OBJ *tim, uint16_t psc, uint32_t per)
     if (tim->TIM == TIM2)
     {
         RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE);
+        RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
+
         TIM_TimeBaseInitStructure.TIM_ClockDivision=TIM_CKD_DIV1;
+
+        GPIO_InitTypeDef GPIO_InitStructure;
+        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
+        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_15;
+        GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+        GPIO_Init(GPIOA, &GPIO_InitStructure);
+
+        GPIO_PinAFConfig(GPIOA, GPIO_PinSource15, GPIO_AF_TIM2);
+
+        TIM_SelectInputTrigger(tim->TIM, TIM_TS_ETRF);
+        TIM_ETRClockMode2Config(tim->TIM, TIM_ExtTRGPSC_OFF, TIM_ExtTRGPolarity_Inverted, 0);
     }
         
     else if (tim->TIM == TIM10)
@@ -99,10 +112,7 @@ int8_t TimInit(TIM_OBJ *tim, uint16_t psc, uint32_t per)
     else
         return -1;
 
-    if (tim->TIM == TIM2)
-        //TIM_TIxExternalClockConfig(tim->TIM, TIM_TIxExternalCLK1Source_TI1, TIM_ICPolarity_Rising, 10);
-        TIM_InternalClockConfig(tim->TIM);
-    else
+    if (tim->TIM != TIM2)
         TIM_InternalClockConfig(tim->TIM);
 
     TIM_TimeBaseInitStructure.TIM_CounterMode=TIM_CounterMode_Up;