diff --git a/platforms/nuttx/src/px4/stm/stm32f3/CMakeLists.txt b/platforms/nuttx/src/px4/stm/stm32f3/CMakeLists.txt
index 40432707c7..22c6701f94 100644
--- a/platforms/nuttx/src/px4/stm/stm32f3/CMakeLists.txt
+++ b/platforms/nuttx/src/px4/stm/stm32f3/CMakeLists.txt
@@ -32,6 +32,9 @@
 ############################################################################
 
 
+add_subdirectory(board_critmon)
+add_subdirectory(../stm32_common/board_reset board_reset)
+add_subdirectory(../stm32_common/version version)
 add_subdirectory(../stm32_common/hrt hrt)
 
 
diff --git a/platforms/nuttx/src/px4/stm/stm32f3/board_critmon/CMakeLists.txt b/platforms/nuttx/src/px4/stm/stm32f3/board_critmon/CMakeLists.txt
new file mode 100644
index 0000000000..26cdb4bbc2
--- /dev/null
+++ b/platforms/nuttx/src/px4/stm/stm32f3/board_critmon/CMakeLists.txt
@@ -0,0 +1,36 @@
+############################################################################
+#
+#   Copyright (c) 2019 PX4 Development Team. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name PX4 nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+px4_add_library(arch_board_critmon
+	board_critmon.c
+)
diff --git a/platforms/nuttx/src/px4/stm/stm32f3/board_critmon/board_critmon.c b/platforms/nuttx/src/px4/stm/stm32f3/board_critmon/board_critmon.c
new file mode 100644
index 0000000000..14e7a3bb3b
--- /dev/null
+++ b/platforms/nuttx/src/px4/stm/stm32f3/board_critmon/board_critmon.c
@@ -0,0 +1,66 @@
+/************************************************************************************
+ *
+ *   Copyright (C) 2018 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+#include <arch/board/board.h>
+
+#if defined(CONFIG_SCHED_CRITMONITOR) || defined(CONFIG_SCHED_IRQMONITOR)
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+#error "missing implementation for up_critmon_gettime() and up_critmon_convert()"
+
+/************************************************************************************
+ * Name: up_critmon_gettime
+ ************************************************************************************/
+
+// uint32_t up_critmon_gettime(void)
+// {
+// }
+
+/************************************************************************************
+ * Name: up_critmon_convert
+ ************************************************************************************/
+
+// void up_critmon_convert(uint32_t elapsed, FAR struct timespec *ts)
+// {
+// }
+
+#endif /* CONFIG_SCHED_CRITMONITOR */