Fixed a bug that prevented FIL_LastExtruderPosition_MM from being reset

Fixed a bug that prevented the sensor values from being updated when a
second print was started. Previously, FIL_LastExtruderPosition_MM would
not be reset when a new print was started, meaning that no new
volumetric multipliers would be requested until the extruder position
exceeded the highest extruder position of the previous print. To fix
this, FIL_LastExtruderPosition_MM is now reset when a G92 gcode command
is used to modify the extruder position. This is not a perfect solution
and will likely cause issues with dual extrusion support.

Author: scottlawsonbc

code/marlin-firmware/Marlin-Lawson-Updated-Firmware/Marlin-Development/Marlin/Marlin_main.cpp

@@ -2638,6 +2638,7 @@ inline void gcode_G92() {
       if (i == E_AXIS) {
         current_position[i] = code_value();
         plan_set_e_position(current_position[E_AXIS]);
+        FIL_LastExtruderPosition_MM  = current_position[E_AXIS];
       }
       else {
         current_position[i] = code_value() +

code/sensor/sensor/sensor.vcxproj

@@ -85,6 +85,7 @@
     <ClCompile Include="..\..\..\..\..\..\AppData\Local\VisualGDB\EmbeddedBSPs\arm-eabi\com.sysprogs.arm.stm32\STM32F30xxx\STM32F30x_StdPeriph_Driver\src\stm32f30x_tim.c" />
     <ClCompile Include="..\..\..\..\..\..\AppData\Local\VisualGDB\EmbeddedBSPs\arm-eabi\com.sysprogs.arm.stm32\STM32F30xxx\STM32F30x_StdPeriph_Driver\src\stm32f30x_usart.c" />
     <ClCompile Include="..\..\..\..\..\..\AppData\Local\VisualGDB\EmbeddedBSPs\arm-eabi\com.sysprogs.arm.stm32\STM32F30xxx\STM32F30x_StdPeriph_Driver\src\stm32f30x_wwdg.c" />
+    <ClCompile Include="source\buffer.c" />
     <ClCompile Include="source\circular-buffer.c" />
     <ClCompile Include="source\dac.c" />
     <ClCompile Include="source\delay.c" />
@@ -140,6 +141,7 @@
     <ClInclude Include="..\..\..\..\..\..\AppData\Local\VisualGDB\EmbeddedBSPs\arm-eabi\com.sysprogs.arm.stm32\STM32F30xxx\STM32F30x_StdPeriph_Driver\inc\stm32f30x_tim.h" />
     <ClInclude Include="..\..\..\..\..\..\AppData\Local\VisualGDB\EmbeddedBSPs\arm-eabi\com.sysprogs.arm.stm32\STM32F30xxx\STM32F30x_StdPeriph_Driver\inc\stm32f30x_usart.h" />
     <ClInclude Include="..\..\..\..\..\..\AppData\Local\VisualGDB\EmbeddedBSPs\arm-eabi\com.sysprogs.arm.stm32\STM32F30xxx\STM32F30x_StdPeriph_Driver\inc\stm32f30x_wwdg.h" />
+    <ClInclude Include="source\buffer.h" />
     <ClInclude Include="source\circular-buffer.h" />
     <ClInclude Include="source\dac.h" />
     <ClInclude Include="source\delay.h" />

code/sensor/sensor/sensor.vcxproj.filters

@@ -130,6 +130,12 @@
     <ClCompile Include="source\i2c-commands.c">
       <Filter>Source files</Filter>
     </ClCompile>
+    <ClCompile Include="source\circular-buffer.c">
+      <Filter>Source files</Filter>
+    </ClCompile>
+    <ClCompile Include="source\buffer.c">
+      <Filter>Source files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <None Include="Makefile" />
@@ -282,5 +288,11 @@
     <ClInclude Include="source\main.h">
       <Filter>Header files</Filter>
     </ClInclude>
+    <ClInclude Include="source\circular-buffer.h">
+      <Filter>Header files</Filter>
+    </ClInclude>
+    <ClInclude Include="source\buffer.h">
+      <Filter>Header files</Filter>
+    </ClInclude>
   </ItemGroup>
 </Project>