diff --git a/app/Core/Inc/main.h b/app/Core/Inc/main.h
index dea0962..2df1d7f 100644
--- a/app/Core/Inc/main.h
+++ b/app/Core/Inc/main.h
@@ -58,7 +58,7 @@ void Error_Handler(void);
 
 /* Private defines -----------------------------------------------------------*/
 #define SPI_SEL_Pin GPIO_PIN_4
-#define SPI_SEL_GPIO_Port GPIOB
+#define SPI_SEL_GPIO_Port GPIOA
 
 /* USER CODE BEGIN Private defines */
 
diff --git a/app/Core/Src/gpio.c b/app/Core/Src/gpio.c
index aa8a850..fd68eeb 100644
--- a/app/Core/Src/gpio.c
+++ b/app/Core/Src/gpio.c
@@ -61,22 +61,14 @@ void MX_GPIO_Init(void)
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
 
-  /*Configure GPIO pins : PA0 PA4 PA5 PA8
-                           PA11 PA12 PA15 */
-  GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_8
-                          |GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_15;
+  /*Configure GPIO pins : PA0 PA1 PA8 PA11
+                           PA12 PA15 */
+  GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_8|GPIO_PIN_11
+                          |GPIO_PIN_12|GPIO_PIN_15;
   GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
-  /*Configure GPIO pins : PB0 PB1 PB3 PB5
-                           PB6 PB7 */
-  GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_3|GPIO_PIN_5
-                          |GPIO_PIN_6|GPIO_PIN_7;
-  GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
-  GPIO_InitStruct.Pull = GPIO_NOPULL;
-  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
-
   /*Configure GPIO pin : PtPin */
   GPIO_InitStruct.Pin = SPI_SEL_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
@@ -84,6 +76,14 @@ void MX_GPIO_Init(void)
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
   HAL_GPIO_Init(SPI_SEL_GPIO_Port, &GPIO_InitStruct);
 
+  /*Configure GPIO pins : PB0 PB1 PB3 PB4
+                           PB5 PB6 PB7 */
+  GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_3|GPIO_PIN_4
+                          |GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7;
+  GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
+  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+
   /*Configure GPIO pin : PH3 */
   GPIO_InitStruct.Pin = GPIO_PIN_3;
   GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
diff --git a/app/Core/Src/spi.c b/app/Core/Src/spi.c
index e62ac4e..981d28a 100644
--- a/app/Core/Src/spi.c
+++ b/app/Core/Src/spi.c
@@ -42,7 +42,7 @@ void MX_SPI1_Init(void)
   hspi1.Init.Direction = SPI_DIRECTION_2LINES;
   hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
   hspi1.Init.CLKPolarity = SPI_POLARITY_HIGH;
-  hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
+  hspi1.Init.CLKPhase = SPI_PHASE_2EDGE;
   hspi1.Init.NSS = SPI_NSS_SOFT;
   hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_256;
   hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
@@ -50,7 +50,7 @@ void MX_SPI1_Init(void)
   hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
   hspi1.Init.CRCPolynomial = 7;
   hspi1.Init.CRCLength = SPI_CRC_LENGTH_DATASIZE;
-  hspi1.Init.NSSPMode = SPI_NSS_PULSE_ENABLE;
+  hspi1.Init.NSSPMode = SPI_NSS_PULSE_DISABLE;
   if (HAL_SPI_Init(&hspi1) != HAL_OK)
   {
     Error_Handler();
@@ -75,11 +75,11 @@ void HAL_SPI_MspInit(SPI_HandleTypeDef* spiHandle)
 
     __HAL_RCC_GPIOA_CLK_ENABLE();
     /**SPI1 GPIO Configuration
-    PA1     ------> SPI1_SCK
+    PA5     ------> SPI1_SCK
     PA6     ------> SPI1_MISO
     PA7     ------> SPI1_MOSI
     */
-    GPIO_InitStruct.Pin = GPIO_PIN_1|GPIO_PIN_6;
+    GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_6;
     GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
     GPIO_InitStruct.Pull = GPIO_NOPULL;
     GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
@@ -111,11 +111,11 @@ void HAL_SPI_MspDeInit(SPI_HandleTypeDef* spiHandle)
     __HAL_RCC_SPI1_CLK_DISABLE();
 
     /**SPI1 GPIO Configuration
-    PA1     ------> SPI1_SCK
+    PA5     ------> SPI1_SCK
     PA6     ------> SPI1_MISO
     PA7     ------> SPI1_MOSI
     */
-    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_1|GPIO_PIN_6|GPIO_PIN_7);
+    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7);
 
   /* USER CODE BEGIN SPI1_MspDeInit 1 */
 
diff --git a/app/MDK-ARM/app.uvguix.29643 b/app/MDK-ARM/app.uvguix.29643
index d64f2d2..c6b97a4 100644
--- a/app/MDK-ARM/app.uvguix.29643
+++ b/app/MDK-ARM/app.uvguix.29643
@@ -101,17 +101,17 @@
         <yPos>-1</yPos>
       </MaxPosition>
       <NormalPosition>
-        <Top>130</Top>
-        <Left>2183</Left>
-        <Right>3627</Right>
-        <Bottom>1012</Bottom>
+        <Top>118</Top>
+        <Left>1999</Left>
+        <Right>3697</Right>
+        <Bottom>1011</Bottom>
       </NormalPosition>
     </WindowPosition>
     <MDIClientArea>
       <RegID>0</RegID>
       <MDITabState>
         <Len>546</Len>
-        <Data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ata>
+        <Data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ata>
       </MDITabState>
     </MDIClientArea>
     <ViewEx>
@@ -134,7 +134,7 @@
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
-          <Data>83090000F00000001F0E000080010000</Data>
+          <Data>CB080000E4000000670D000074010000</Data>
         </RectRecentFloat>
       </Window>
       <Window>
@@ -150,7 +150,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>0300000066000000ED0000008B020000</Data>
+          <Data>0300000066000000ED00000096020000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -170,7 +170,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>0300000066000000ED0000008B020000</Data>
+          <Data>0300000066000000ED00000096020000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -450,7 +450,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>0300000066000000ED0000008B020000</Data>
+          <Data>0300000066000000ED00000096020000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -470,7 +470,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>0300000066000000ED0000008B020000</Data>
+          <Data>0300000066000000ED00000096020000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -490,7 +490,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>00000000BC0200009405000038030000</Data>
+          <Data>00000000C70200009206000043030000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -530,7 +530,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>03000000BF020000910500001F030000</Data>
+          <Data>03000000CA0200008F0600002A030000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -1150,7 +1150,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>0300000066000000ED0000008B020000</Data>
+          <Data>0300000066000000ED00000096020000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -1170,7 +1170,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>03000000BF020000910500001F030000</Data>
+          <Data>03000000CA0200008F0600002A030000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -1190,7 +1190,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>03000000BF020000910500001F030000</Data>
+          <Data>03000000CA0200008F0600002A030000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -1250,7 +1250,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>03000000BF020000910500001F030000</Data>
+          <Data>03000000CA0200008F0600002A030000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -1270,7 +1270,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>03000000BF020000910500001F030000</Data>
+          <Data>03000000CA0200008F0600002A030000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -1730,7 +1730,7 @@
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
-          <Data>0000000038030000940500004B030000</Data>
+          <Data>00000000430300009206000056030000</Data>
         </RectRecentDocked>
         <RectRecentFloat>
           <Len>16</Len>
@@ -1799,7 +1799,7 @@
       </Window>
       <DockMan>
         <Len>3312</Len>
-        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       </DockMan>
       <ToolBar>
         <RegID>59392</RegID>
@@ -1838,7 +1838,7 @@
         <Name>Debug</Name>
         <Buttons>
           <Len>2373</Len>
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         </Buttons>
         <OriginalItems>
           <Len>898</Len>
@@ -1883,9 +1883,9 @@
       </Doc>
       <Doc>
         <Name>..\..\usersrc\usermain.c</Name>
-        <ColumnNumber>31</ColumnNumber>
+        <ColumnNumber>0</ColumnNumber>
         <TopLine>23</TopLine>
-        <CurrentLine>24</CurrentLine>
+        <CurrentLine>54</CurrentLine>
         <Folding>1</Folding>
         <ContractedFolders></ContractedFolders>
         <PaneID>0</PaneID>
diff --git a/app/app.ioc b/app/app.ioc
index bb79c9c..911ce6e 100644
--- a/app/app.ioc
+++ b/app/app.ioc
@@ -16,17 +16,17 @@ Mcu.IP5=USART2
 Mcu.IPNb=6
 Mcu.Name=STM32L432K(B-C)Ux
 Mcu.Package=UFQFPN32
-Mcu.Pin0=PA1
-Mcu.Pin1=PA2
+Mcu.Pin0=PA2
+Mcu.Pin1=PA3
 Mcu.Pin10=VP_SYS_VS_Systick
-Mcu.Pin2=PA3
-Mcu.Pin3=PA6
-Mcu.Pin4=PA7
-Mcu.Pin5=PA9
-Mcu.Pin6=PA10
-Mcu.Pin7=PA13 (JTMS-SWDIO)
-Mcu.Pin8=PA14 (JTCK-SWCLK)
-Mcu.Pin9=PB4 (NJTRST)
+Mcu.Pin2=PA4
+Mcu.Pin3=PA5
+Mcu.Pin4=PA6
+Mcu.Pin5=PA7
+Mcu.Pin6=PA9
+Mcu.Pin7=PA10
+Mcu.Pin8=PA13 (JTMS-SWDIO)
+Mcu.Pin9=PA14 (JTCK-SWCLK)
 Mcu.PinsNb=11
 Mcu.ThirdPartyNb=0
 Mcu.UserConstants=
@@ -46,9 +46,6 @@ NVIC.SysTick_IRQn=true\:15\:0\:false\:false\:true\:false\:true\:false
 NVIC.USART1_IRQn=true\:0\:0\:false\:false\:true\:true\:true\:true
 NVIC.USART2_IRQn=true\:0\:0\:false\:false\:true\:true\:true\:true
 NVIC.UsageFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
-PA1.Locked=true
-PA1.Mode=Full_Duplex_Master
-PA1.Signal=SPI1_SCK
 PA10.Mode=Asynchronous
 PA10.Signal=USART1_RX
 PA13\ (JTMS-SWDIO).Mode=Serial_Wire
@@ -60,6 +57,13 @@ PA2.Mode=Asynchronous
 PA2.Signal=USART2_TX
 PA3.Mode=Asynchronous
 PA3.Signal=USART2_RX
+PA4.GPIOParameters=GPIO_Label
+PA4.GPIO_Label=SPI_SEL
+PA4.Locked=true
+PA4.Signal=GPIO_Output
+PA5.Locked=true
+PA5.Mode=Full_Duplex_Master
+PA5.Signal=SPI1_SCK
 PA6.Mode=Full_Duplex_Master
 PA6.Signal=SPI1_MISO
 PA7.GPIOParameters=GPIO_PuPd
@@ -68,11 +72,6 @@ PA7.Mode=Full_Duplex_Master
 PA7.Signal=SPI1_MOSI
 PA9.Mode=Asynchronous
 PA9.Signal=USART1_TX
-PB4\ (NJTRST).GPIOParameters=GPIO_PuPd,GPIO_Label
-PB4\ (NJTRST).GPIO_Label=SPI_SEL
-PB4\ (NJTRST).GPIO_PuPd=GPIO_NOPULL
-PB4\ (NJTRST).Locked=true
-PB4\ (NJTRST).Signal=GPIO_Output
 PinOutPanel.RotationAngle=0
 ProjectManager.AskForMigrate=true
 ProjectManager.BackupPrevious=false
@@ -146,7 +145,7 @@ RCC.VCOInputFreq_Value=16000000
 RCC.VCOOutputFreq_Value=128000000
 RCC.VCOSAI1OutputFreq_Value=128000000
 SPI1.BaudRatePrescaler=SPI_BAUDRATEPRESCALER_256
-SPI1.CLKPhase=SPI_PHASE_1EDGE
+SPI1.CLKPhase=SPI_PHASE_2EDGE
 SPI1.CLKPolarity=SPI_POLARITY_HIGH
 SPI1.CalculateBaudRate=250.0 KBits/s
 SPI1.DataSize=SPI_DATASIZE_8BIT