diff --git a/hal/src/main/native/athena/mockdata/Reset.cpp b/hal/src/main/native/athena/mockdata/Reset.cpp
new file mode 100644
index 0000000000..7cbeea36d7
--- /dev/null
+++ b/hal/src/main/native/athena/mockdata/Reset.cpp
@@ -0,0 +1,5 @@
+// Copyright (c) FIRST and other WPILib contributors.
+// Open Source Software; you can modify and/or share it under the terms of
+// the WPILib BSD license file in the root directory of this project.
+
+extern "C" void HALSIM_ResetAllSimData(void) {}
diff --git a/hal/src/main/native/include/hal/simulation/Reset.h b/hal/src/main/native/include/hal/simulation/Reset.h
new file mode 100644
index 0000000000..447321c4e6
--- /dev/null
+++ b/hal/src/main/native/include/hal/simulation/Reset.h
@@ -0,0 +1,7 @@
+// Copyright (c) FIRST and other WPILib contributors.
+// Open Source Software; you can modify and/or share it under the terms of
+// the WPILib BSD license file in the root directory of this project.
+
+#pragma once
+
+extern "C" void HALSIM_ResetAllSimData(void);
diff --git a/hal/src/main/native/sim/mockdata/Reset.cpp b/hal/src/main/native/sim/mockdata/Reset.cpp
new file mode 100644
index 0000000000..bb8397321b
--- /dev/null
+++ b/hal/src/main/native/sim/mockdata/Reset.cpp
@@ -0,0 +1,109 @@
+// Copyright (c) FIRST and other WPILib contributors.
+// Open Source Software; you can modify and/or share it under the terms of
+// the WPILib BSD license file in the root directory of this project.
+
+#include <hal/simulation/AccelerometerData.h>
+#include <hal/simulation/AddressableLEDData.h>
+#include <hal/simulation/AnalogGyroData.h>
+#include <hal/simulation/AnalogInData.h>
+#include <hal/simulation/AnalogOutData.h>
+#include <hal/simulation/AnalogTriggerData.h>
+#include <hal/simulation/CTREPCMData.h>
+#include <hal/simulation/CanData.h>
+#include <hal/simulation/DIOData.h>
+#include <hal/simulation/DigitalPWMData.h>
+#include <hal/simulation/DriverStationData.h>
+#include <hal/simulation/DutyCycleData.h>
+#include <hal/simulation/EncoderData.h>
+#include <hal/simulation/I2CData.h>
+#include <hal/simulation/PWMData.h>
+#include <hal/simulation/PowerDistributionData.h>
+#include <hal/simulation/REVPHData.h>
+#include <hal/simulation/RelayData.h>
+#include <hal/simulation/RoboRioData.h>
+#include <hal/simulation/SPIAccelerometerData.h>
+#include <hal/simulation/SPIData.h>
+#include <hal/simulation/SimDeviceData.h>
+
+#include "../PortsInternal.h"
+
+extern "C" void HALSIM_ResetAllSimData(void) {
+  for (int32_t i = 0; i < hal::kAccelerometers; i++) {
+    HALSIM_ResetAccelerometerData(i);
+  }
+
+  for (int32_t i = 0; i < hal::kNumAddressableLEDs; i++) {
+    HALSIM_ResetAddressableLEDData(i);
+  }
+
+  for (int32_t i = 0; i < hal::kNumAccumulators; i++) {
+    HALSIM_ResetAnalogGyroData(i);
+  }
+
+  for (int32_t i = 0; i < hal::kNumAnalogInputs; i++) {
+    HALSIM_ResetAnalogInData(i);
+  }
+
+  for (int32_t i = 0; i < hal::kNumAnalogOutputs; i++) {
+    HALSIM_ResetAnalogOutData(i);
+  }
+
+  for (int32_t i = 0; i < hal::kNumAnalogTriggers; i++) {
+    HALSIM_ResetAnalogTriggerData(i);
+  }
+
+  HALSIM_ResetCanData();
+
+  for (int32_t i = 0; i < hal::kNumCTREPCMModules; i++) {
+    HALSIM_ResetCTREPCMData(i);
+  }
+
+  for (int32_t i = 0; i < hal::kNumDigitalPWMOutputs; i++) {
+    HALSIM_ResetDigitalPWMData(i);
+  }
+
+  for (int32_t i = 0; i < hal::kNumDigitalChannels; i++) {
+    HALSIM_ResetDIOData(i);
+  }
+
+  HALSIM_ResetDriverStationData();
+
+  for (int32_t i = 0; i < hal::kNumDutyCycles; i++) {
+    HALSIM_ResetDutyCycleData(i);
+  }
+
+  for (int32_t i = 0; i < hal::kNumEncoders; i++) {
+    HALSIM_ResetEncoderData(i);
+  }
+
+  for (int32_t i = 0; i < hal::kI2CPorts; i++) {
+    HALSIM_ResetI2CData(i);
+  }
+
+  for (int32_t i = 0; i < hal::kNumPDSimModules; i++) {
+    HALSIM_ResetPowerDistributionData(i);
+  }
+
+  for (int32_t i = 0; i < hal::kNumPWMChannels; i++) {
+    HALSIM_ResetPWMData(i);
+  }
+
+  for (int32_t i = 0; i < hal::kNumRelayHeaders; i++) {
+    HALSIM_ResetRelayData(i);
+  }
+
+  for (int32_t i = 0; i < hal::kNumREVPHModules; i++) {
+    HALSIM_ResetREVPHData(i);
+  }
+
+  HALSIM_ResetRoboRioData();
+  HALSIM_ResetSimDeviceData();
+
+  for (int32_t i = 0; i < hal::kSPIAccelerometers; i++) {
+    HALSIM_ResetSPIAccelerometerData(i);
+  }
+
+  for (int32_t i = 0; i < hal::kSPIPorts; i++) {
+    HALSIM_ResetSPIData(i);
+  }
+}