diff --git a/keyboards/chibios_test/stm32_l476_onekey/bootloader_defs.h b/keyboards/chibios_test/stm32_l476_onekey/bootloader_defs.h
new file mode 100644
index 00000000..332e2a06
--- /dev/null
+++ b/keyboards/chibios_test/stm32_l476_onekey/bootloader_defs.h
@@ -0,0 +1,9 @@
+/* Address for jumping to bootloader on STM32 chips. */
+/* It is chip dependent, the correct number can be looked up here (page 175):
+ * http://www.st.com/web/en/resource/technical/document/application_note/CD00167594.pdf
+ * This also requires a patch to chibios:
+ *  <tmk_dir>/tmk_core/tool/chibios/ch-bootloader-jump.patch
+ */
+
+// STM32L476 Bootloader address
+#define STM32_BOOTLOADER_ADDRESS 0x1FFF0000
diff --git a/keyboards/chibios_test/stm32_l476_onekey/chconf.h b/keyboards/chibios_test/stm32_l476_onekey/chconf.h
new file mode 100644
index 00000000..1065821f
--- /dev/null
+++ b/keyboards/chibios_test/stm32_l476_onekey/chconf.h
@@ -0,0 +1,520 @@
+/*
+    ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/**
+ * @file    templates/chconf.h
+ * @brief   Configuration file template.
+ * @details A copy of this file must be placed in each project directory, it
+ *          contains the application specific kernel settings.
+ *
+ * @addtogroup config
+ * @details Kernel related settings and hooks.
+ * @{
+ */
+
+#ifndef CHCONF_H
+#define CHCONF_H
+
+#define _CHIBIOS_RT_CONF_
+
+/*===========================================================================*/
+/**
+ * @name System timers settings
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   System time counter resolution.
+ * @note    Allowed values are 16 or 32 bits.
+ */
+#define CH_CFG_ST_RESOLUTION                32
+
+/**
+ * @brief   System tick frequency.
+ * @details Frequency of the system timer that drives the system ticks. This
+ *          setting also defines the system tick time unit.
+ */
+#define CH_CFG_ST_FREQUENCY                 10000
+
+/**
+ * @brief   Time delta constant for the tick-less mode.
+ * @note    If this value is zero then the system uses the classic
+ *          periodic tick. This value represents the minimum number
+ *          of ticks that is safe to specify in a timeout directive.
+ *          The value one is not valid, timeouts are rounded up to
+ *          this value.
+ */
+#define CH_CFG_ST_TIMEDELTA                 2
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Kernel parameters and options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   Round robin interval.
+ * @details This constant is the number of system ticks allowed for the
+ *          threads before preemption occurs. Setting this value to zero
+ *          disables the preemption for threads with equal priority and the
+ *          round robin becomes cooperative. Note that higher priority
+ *          threads can still preempt, the kernel is always preemptive.
+ * @note    Disabling the round robin preemption makes the kernel more compact
+ *          and generally faster.
+ * @note    The round robin preemption is not supported in tickless mode and
+ *          must be set to zero in that case.
+ */
+#define CH_CFG_TIME_QUANTUM                 0
+
+/**
+ * @brief   Managed RAM size.
+ * @details Size of the RAM area to be managed by the OS. If set to zero
+ *          then the whole available RAM is used. The core memory is made
+ *          available to the heap allocator and/or can be used directly through
+ *          the simplified core memory allocator.
+ *
+ * @note    In order to let the OS manage the whole RAM the linker script must
+ *          provide the @p __heap_base__ and @p __heap_end__ symbols.
+ * @note    Requires @p CH_CFG_USE_MEMCORE.
+ */
+#define CH_CFG_MEMCORE_SIZE                 0
+
+/**
+ * @brief   Idle thread automatic spawn suppression.
+ * @details When this option is activated the function @p chSysInit()
+ *          does not spawn the idle thread. The application @p main()
+ *          function becomes the idle thread and must implement an
+ *          infinite loop.
+ */
+#define CH_CFG_NO_IDLE_THREAD               FALSE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Performance options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   OS optimization.
+ * @details If enabled then time efficient rather than space efficient code
+ *          is used when two possible implementations exist.
+ *
+ * @note    This is not related to the compiler optimization options.
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_OPTIMIZE_SPEED               TRUE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Subsystem options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   Time Measurement APIs.
+ * @details If enabled then the time measurement APIs are included in
+ *          the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_TM                       TRUE
+
+/**
+ * @brief   Threads registry APIs.
+ * @details If enabled then the registry APIs are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_REGISTRY                 TRUE
+
+/**
+ * @brief   Threads synchronization APIs.
+ * @details If enabled then the @p chThdWait() function is included in
+ *          the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_WAITEXIT                 TRUE
+
+/**
+ * @brief   Semaphores APIs.
+ * @details If enabled then the Semaphores APIs are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_SEMAPHORES               TRUE
+
+/**
+ * @brief   Semaphores queuing mode.
+ * @details If enabled then the threads are enqueued on semaphores by
+ *          priority rather than in FIFO order.
+ *
+ * @note    The default is @p FALSE. Enable this if you have special
+ *          requirements.
+ * @note    Requires @p CH_CFG_USE_SEMAPHORES.
+ */
+#define CH_CFG_USE_SEMAPHORES_PRIORITY      FALSE
+
+/**
+ * @brief   Mutexes APIs.
+ * @details If enabled then the mutexes APIs are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_MUTEXES                  TRUE
+
+/**
+ * @brief   Enables recursive behavior on mutexes.
+ * @note    Recursive mutexes are heavier and have an increased
+ *          memory footprint.
+ *
+ * @note    The default is @p FALSE.
+ * @note    Requires @p CH_CFG_USE_MUTEXES.
+ */
+#define CH_CFG_USE_MUTEXES_RECURSIVE        FALSE
+
+/**
+ * @brief   Conditional Variables APIs.
+ * @details If enabled then the conditional variables APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_MUTEXES.
+ */
+#define CH_CFG_USE_CONDVARS                 TRUE
+
+/**
+ * @brief   Conditional Variables APIs with timeout.
+ * @details If enabled then the conditional variables APIs with timeout
+ *          specification are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_CONDVARS.
+ */
+#define CH_CFG_USE_CONDVARS_TIMEOUT         TRUE
+
+/**
+ * @brief   Events Flags APIs.
+ * @details If enabled then the event flags APIs are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_EVENTS                   TRUE
+
+/**
+ * @brief   Events Flags APIs with timeout.
+ * @details If enabled then the events APIs with timeout specification
+ *          are included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_EVENTS.
+ */
+#define CH_CFG_USE_EVENTS_TIMEOUT           TRUE
+
+/**
+ * @brief   Synchronous Messages APIs.
+ * @details If enabled then the synchronous messages APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_MESSAGES                 TRUE
+
+/**
+ * @brief   Synchronous Messages queuing mode.
+ * @details If enabled then messages are served by priority rather than in
+ *          FIFO order.
+ *
+ * @note    The default is @p FALSE. Enable this if you have special
+ *          requirements.
+ * @note    Requires @p CH_CFG_USE_MESSAGES.
+ */
+#define CH_CFG_USE_MESSAGES_PRIORITY        FALSE
+
+/**
+ * @brief   Mailboxes APIs.
+ * @details If enabled then the asynchronous messages (mailboxes) APIs are
+ *          included in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_SEMAPHORES.
+ */
+#define CH_CFG_USE_MAILBOXES                TRUE
+
+/**
+ * @brief   Core Memory Manager APIs.
+ * @details If enabled then the core memory manager APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_MEMCORE                  TRUE
+
+/**
+ * @brief   Heap Allocator APIs.
+ * @details If enabled then the memory heap allocator APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_MEMCORE and either @p CH_CFG_USE_MUTEXES or
+ *          @p CH_CFG_USE_SEMAPHORES.
+ * @note    Mutexes are recommended.
+ */
+#define CH_CFG_USE_HEAP                     TRUE
+
+/**
+ * @brief   Memory Pools Allocator APIs.
+ * @details If enabled then the memory pools allocator APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ */
+#define CH_CFG_USE_MEMPOOLS                 TRUE
+
+/**
+ * @brief   Dynamic Threads APIs.
+ * @details If enabled then the dynamic threads creation APIs are included
+ *          in the kernel.
+ *
+ * @note    The default is @p TRUE.
+ * @note    Requires @p CH_CFG_USE_WAITEXIT.
+ * @note    Requires @p CH_CFG_USE_HEAP and/or @p CH_CFG_USE_MEMPOOLS.
+ */
+#define CH_CFG_USE_DYNAMIC                  TRUE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Debug options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   Debug option, kernel statistics.
+ *
+ * @note    The default is @p FALSE.
+ */
+#define CH_DBG_STATISTICS                   FALSE
+
+/**
+ * @brief   Debug option, system state check.
+ * @details If enabled the correct call protocol for system APIs is checked
+ *          at runtime.
+ *
+ * @note    The default is @p FALSE.
+ */
+#define CH_DBG_SYSTEM_STATE_CHECK           FALSE
+
+/**
+ * @brief   Debug option, parameters checks.
+ * @details If enabled then the checks on the API functions input
+ *          parameters are activated.
+ *
+ * @note    The default is @p FALSE.
+ */
+#define CH_DBG_ENABLE_CHECKS                FALSE
+
+/**
+ * @brief   Debug option, consistency checks.
+ * @details If enabled then all the assertions in the kernel code are
+ *          activated. This includes consistency checks inside the kernel,
+ *          runtime anomalies and port-defined checks.
+ *
+ * @note    The default is @p FALSE.
+ */
+#define CH_DBG_ENABLE_ASSERTS               FALSE
+
+/**
+ * @brief   Debug option, trace buffer.
+ * @details If enabled then the trace buffer is activated.
+ *
+ * @note    The default is @p CH_DBG_TRACE_MASK_DISABLED.
+ */
+#define CH_DBG_TRACE_MASK                   CH_DBG_TRACE_MASK_DISABLED
+
+/**
+ * @brief   Trace buffer entries.
+ * @note    The trace buffer is only allocated if @p CH_DBG_TRACE_MASK is
+ *          different from @p CH_DBG_TRACE_MASK_DISABLED.
+ */
+#define CH_DBG_TRACE_BUFFER_SIZE            128
+
+/**
+ * @brief   Debug option, stack checks.
+ * @details If enabled then a runtime stack check is performed.
+ *
+ * @note    The default is @p FALSE.
+ * @note    The stack check is performed in a architecture/port dependent way.
+ *          It may not be implemented or some ports.
+ * @note    The default failure mode is to halt the system with the global
+ *          @p panic_msg variable set to @p NULL.
+ */
+#define CH_DBG_ENABLE_STACK_CHECK           FALSE
+
+/**
+ * @brief   Debug option, stacks initialization.
+ * @details If enabled then the threads working area is filled with a byte
+ *          value when a thread is created. This can be useful for the
+ *          runtime measurement of the used stack.
+ *
+ * @note    The default is @p FALSE.
+ */
+#define CH_DBG_FILL_THREADS                 FALSE
+
+/**
+ * @brief   Debug option, threads profiling.
+ * @details If enabled then a field is added to the @p thread_t structure that
+ *          counts the system ticks occurred while executing the thread.
+ *
+ * @note    The default is @p FALSE.
+ * @note    This debug option is not currently compatible with the
+ *          tickless mode.
+ */
+#define CH_DBG_THREADS_PROFILING            FALSE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Kernel hooks
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   Threads descriptor structure extension.
+ * @details User fields added to the end of the @p thread_t structure.
+ */
+#define CH_CFG_THREAD_EXTRA_FIELDS                                          \
+  /* Add threads custom fields here.*/
+
+/**
+ * @brief   Threads initialization hook.
+ * @details User initialization code added to the @p chThdInit() API.
+ *
+ * @note    It is invoked from within @p chThdInit() and implicitly from all
+ *          the threads creation APIs.
+ */
+#define CH_CFG_THREAD_INIT_HOOK(tp) {                                       \
+  /* Add threads initialization code here.*/                                \
+}
+
+/**
+ * @brief   Threads finalization hook.
+ * @details User finalization code added to the @p chThdExit() API.
+ */
+#define CH_CFG_THREAD_EXIT_HOOK(tp) {                                       \
+  /* Add threads finalization code here.*/                                  \
+}
+
+/**
+ * @brief   Context switch hook.
+ * @details This hook is invoked just before switching between threads.
+ */
+#define CH_CFG_CONTEXT_SWITCH_HOOK(ntp, otp) {                              \
+  /* Context switch code here.*/                                            \
+}
+
+/**
+ * @brief   ISR enter hook.
+ */
+#define CH_CFG_IRQ_PROLOGUE_HOOK() {                                        \
+  /* IRQ prologue code here.*/                                              \
+}
+
+/**
+ * @brief   ISR exit hook.
+ */
+#define CH_CFG_IRQ_EPILOGUE_HOOK() {                                        \
+  /* IRQ epilogue code here.*/                                              \
+}
+
+/**
+ * @brief   Idle thread enter hook.
+ * @note    This hook is invoked within a critical zone, no OS functions
+ *          should be invoked from here.
+ * @note    This macro can be used to activate a power saving mode.
+ */
+#define CH_CFG_IDLE_ENTER_HOOK() {                                          \
+  /* Idle-enter code here.*/                                                \
+}
+
+/**
+ * @brief   Idle thread leave hook.
+ * @note    This hook is invoked within a critical zone, no OS functions
+ *          should be invoked from here.
+ * @note    This macro can be used to deactivate a power saving mode.
+ */
+#define CH_CFG_IDLE_LEAVE_HOOK() {                                          \
+  /* Idle-leave code here.*/                                                \
+}
+
+/**
+ * @brief   Idle Loop hook.
+ * @details This hook is continuously invoked by the idle thread loop.
+ */
+#define CH_CFG_IDLE_LOOP_HOOK() {                                           \
+  /* Idle loop code here.*/                                                 \
+}
+
+/**
+ * @brief   System tick event hook.
+ * @details This hook is invoked in the system tick handler immediately
+ *          after processing the virtual timers queue.
+ */
+#define CH_CFG_SYSTEM_TICK_HOOK() {                                         \
+  /* System tick event code here.*/                                         \
+}
+
+/**
+ * @brief   System halt hook.
+ * @details This hook is invoked in case to a system halting error before
+ *          the system is halted.
+ */
+#define CH_CFG_SYSTEM_HALT_HOOK(reason) {                                   \
+  /* System halt code here.*/                                               \
+}
+
+/**
+ * @brief   Trace hook.
+ * @details This hook is invoked each time a new record is written in the
+ *          trace buffer.
+ */
+#define CH_CFG_TRACE_HOOK(tep) {                                            \
+  /* Trace code here.*/                                                     \
+}
+
+/** @} */
+
+/*===========================================================================*/
+/* Port-specific settings (override port settings defaulted in chcore.h).    */
+/*===========================================================================*/
+
+#endif  /* CHCONF_H */
+
+/** @} */
diff --git a/keyboards/chibios_test/stm32_l476_onekey/config.h b/keyboards/chibios_test/stm32_l476_onekey/config.h
new file mode 100644
index 00000000..b9604571
--- /dev/null
+++ b/keyboards/chibios_test/stm32_l476_onekey/config.h
@@ -0,0 +1,6 @@
+#ifndef KEYBOARDS_CHIBIOS_TEST_STM32_L476_ONEKEY_CONFIG_H_
+#define KEYBOARDS_CHIBIOS_TEST_STM32_L476_ONEKEY_CONFIG_H_
+
+#include "../config.h"
+
+#endif /* KEYBOARDS_CHIBIOS_TEST_STM32_L476_ONEKEY_CONFIG_H_ */
diff --git a/keyboards/chibios_test/stm32_l476_onekey/flash.sh b/keyboards/chibios_test/stm32_l476_onekey/flash.sh
new file mode 100755
index 00000000..15501dfa
--- /dev/null
+++ b/keyboards/chibios_test/stm32_l476_onekey/flash.sh
@@ -0,0 +1,2 @@
+#!/bin/bash
+Arduino_STM32_usb_hid/tools/linux/maple_upload ttyACM0 2 1EAF:0003 build/ch.bin
diff --git a/keyboards/chibios_test/stm32_l476_onekey/halconf.h b/keyboards/chibios_test/stm32_l476_onekey/halconf.h
new file mode 100644
index 00000000..64aa5998
--- /dev/null
+++ b/keyboards/chibios_test/stm32_l476_onekey/halconf.h
@@ -0,0 +1,388 @@
+/*
+    ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/**
+ * @file    templates/halconf.h
+ * @brief   HAL configuration header.
+ * @details HAL configuration file, this file allows to enable or disable the
+ *          various device drivers from your application. You may also use
+ *          this file in order to override the device drivers default settings.
+ *
+ * @addtogroup HAL_CONF
+ * @{
+ */
+
+#ifndef HALCONF_H
+#define HALCONF_H
+
+#include "mcuconf.h"
+
+/**
+ * @brief   Enables the PAL subsystem.
+ */
+#if !defined(HAL_USE_PAL) || defined(__DOXYGEN__)
+#define HAL_USE_PAL                 TRUE
+#endif
+
+/**
+ * @brief   Enables the ADC subsystem.
+ */
+#if !defined(HAL_USE_ADC) || defined(__DOXYGEN__)
+#define HAL_USE_ADC                 FALSE
+#endif
+
+/**
+ * @brief   Enables the CAN subsystem.
+ */
+#if !defined(HAL_USE_CAN) || defined(__DOXYGEN__)
+#define HAL_USE_CAN                 FALSE
+#endif
+
+/**
+ * @brief   Enables the DAC subsystem.
+ */
+#if !defined(HAL_USE_DAC) || defined(__DOXYGEN__)
+#define HAL_USE_DAC                 FALSE
+#endif
+
+/**
+ * @brief   Enables the EXT subsystem.
+ */
+#if !defined(HAL_USE_EXT) || defined(__DOXYGEN__)
+#define HAL_USE_EXT                 FALSE
+#endif
+
+/**
+ * @brief   Enables the GPT subsystem.
+ */
+#if !defined(HAL_USE_GPT) || defined(__DOXYGEN__)
+#define HAL_USE_GPT                 FALSE
+#endif
+
+/**
+ * @brief   Enables the I2C subsystem.
+ */
+#if !defined(HAL_USE_I2C) || defined(__DOXYGEN__)
+#define HAL_USE_I2C                 FALSE
+#endif
+
+/**
+ * @brief   Enables the I2S subsystem.
+ */
+#if !defined(HAL_USE_I2S) || defined(__DOXYGEN__)
+#define HAL_USE_I2S                 FALSE
+#endif
+
+/**
+ * @brief   Enables the ICU subsystem.
+ */
+#if !defined(HAL_USE_ICU) || defined(__DOXYGEN__)
+#define HAL_USE_ICU                 FALSE
+#endif
+
+/**
+ * @brief   Enables the MAC subsystem.
+ */
+#if !defined(HAL_USE_MAC) || defined(__DOXYGEN__)
+#define HAL_USE_MAC                 FALSE
+#endif
+
+/**
+ * @brief   Enables the MMC_SPI subsystem.
+ */
+#if !defined(HAL_USE_MMC_SPI) || defined(__DOXYGEN__)
+#define HAL_USE_MMC_SPI             FALSE
+#endif
+
+/**
+ * @brief   Enables the PWM subsystem.
+ */
+#if !defined(HAL_USE_PWM) || defined(__DOXYGEN__)
+#define HAL_USE_PWM                 FALSE
+#endif
+
+/**
+ * @brief   Enables the QSPI subsystem.
+ */
+#if !defined(HAL_USE_QSPI) || defined(__DOXYGEN__)
+#define HAL_USE_QSPI                FALSE
+#endif
+
+/**
+ * @brief   Enables the RTC subsystem.
+ */
+#if !defined(HAL_USE_RTC) || defined(__DOXYGEN__)
+#define HAL_USE_RTC                 FALSE
+#endif
+
+/**
+ * @brief   Enables the SDC subsystem.
+ */
+#if !defined(HAL_USE_SDC) || defined(__DOXYGEN__)
+#define HAL_USE_SDC                 FALSE
+#endif
+
+/**
+ * @brief   Enables the SERIAL subsystem.
+ */
+#if !defined(HAL_USE_SERIAL) || defined(__DOXYGEN__)
+#define HAL_USE_SERIAL              TRUE
+#endif
+
+/**
+ * @brief   Enables the SERIAL over USB subsystem.
+ */
+#if !defined(HAL_USE_SERIAL_USB) || defined(__DOXYGEN__)
+#define HAL_USE_SERIAL_USB          FALSE
+#endif
+
+/**
+ * @brief   Enables the SPI subsystem.
+ */
+#if !defined(HAL_USE_SPI) || defined(__DOXYGEN__)
+#define HAL_USE_SPI                 FALSE
+#endif
+
+/**
+ * @brief   Enables the UART subsystem.
+ */
+#if !defined(HAL_USE_UART) || defined(__DOXYGEN__)
+#define HAL_USE_UART                FALSE
+#endif
+
+/**
+ * @brief   Enables the USB subsystem.
+ */
+#if !defined(HAL_USE_USB) || defined(__DOXYGEN__)
+#define HAL_USE_USB                 FALSE
+#endif
+
+/**
+ * @brief   Enables the WDG subsystem.
+ */
+#if !defined(HAL_USE_WDG) || defined(__DOXYGEN__)
+#define HAL_USE_WDG                 FALSE
+#endif
+
+/*===========================================================================*/
+/* ADC driver related settings.                                              */
+/*===========================================================================*/
+
+/**
+ * @brief   Enables synchronous APIs.
+ * @note    Disabling this option saves both code and data space.
+ */
+#if !defined(ADC_USE_WAIT) || defined(__DOXYGEN__)
+#define ADC_USE_WAIT                TRUE
+#endif
+
+/**
+ * @brief   Enables the @p adcAcquireBus() and @p adcReleaseBus() APIs.
+ * @note    Disabling this option saves both code and data space.
+ */
+#if !defined(ADC_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
+#define ADC_USE_MUTUAL_EXCLUSION    TRUE
+#endif
+
+/*===========================================================================*/
+/* CAN driver related settings.                                              */
+/*===========================================================================*/
+
+/**
+ * @brief   Sleep mode related APIs inclusion switch.
+ */
+#if !defined(CAN_USE_SLEEP_MODE) || defined(__DOXYGEN__)
+#define CAN_USE_SLEEP_MODE          TRUE
+#endif
+
+/*===========================================================================*/
+/* I2C driver related settings.                                              */
+/*===========================================================================*/
+
+/**
+ * @brief   Enables the mutual exclusion APIs on the I2C bus.
+ */
+#if !defined(I2C_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
+#define I2C_USE_MUTUAL_EXCLUSION    TRUE
+#endif
+
+/*===========================================================================*/
+/* MAC driver related settings.                                              */
+/*===========================================================================*/
+
+/**
+ * @brief   Enables an event sources for incoming packets.
+ */
+#if !defined(MAC_USE_ZERO_COPY) || defined(__DOXYGEN__)
+#define MAC_USE_ZERO_COPY           FALSE
+#endif
+
+/**
+ * @brief   Enables an event sources for incoming packets.
+ */
+#if !defined(MAC_USE_EVENTS) || defined(__DOXYGEN__)
+#define MAC_USE_EVENTS              TRUE
+#endif
+
+/*===========================================================================*/
+/* MMC_SPI driver related settings.                                          */
+/*===========================================================================*/
+
+/**
+ * @brief   Delays insertions.
+ * @details If enabled this options inserts delays into the MMC waiting
+ *          routines releasing some extra CPU time for the threads with
+ *          lower priority, this may slow down the driver a bit however.
+ *          This option is recommended also if the SPI driver does not
+ *          use a DMA channel and heavily loads the CPU.
+ */
+#if !defined(MMC_NICE_WAITING) || defined(__DOXYGEN__)
+#define MMC_NICE_WAITING            TRUE
+#endif
+
+/*===========================================================================*/
+/* SDC driver related settings.                                              */
+/*===========================================================================*/
+
+/**
+ * @brief   Number of initialization attempts before rejecting the card.
+ * @note    Attempts are performed at 10mS intervals.
+ */
+#if !defined(SDC_INIT_RETRY) || defined(__DOXYGEN__)
+#define SDC_INIT_RETRY              100
+#endif
+
+/**
+ * @brief   Include support for MMC cards.
+ * @note    MMC support is not yet implemented so this option must be kept
+ *          at @p FALSE.
+ */
+#if !defined(SDC_MMC_SUPPORT) || defined(__DOXYGEN__)
+#define SDC_MMC_SUPPORT             FALSE
+#endif
+
+/**
+ * @brief   Delays insertions.
+ * @details If enabled this options inserts delays into the MMC waiting
+ *          routines releasing some extra CPU time for the threads with
+ *          lower priority, this may slow down the driver a bit however.
+ */
+#if !defined(SDC_NICE_WAITING) || defined(__DOXYGEN__)
+#define SDC_NICE_WAITING            TRUE
+#endif
+
+/*===========================================================================*/
+/* SERIAL driver related settings.                                           */
+/*===========================================================================*/
+
+/**
+ * @brief   Default bit rate.
+ * @details Configuration parameter, this is the baud rate selected for the
+ *          default configuration.
+ */
+#if !defined(SERIAL_DEFAULT_BITRATE) || defined(__DOXYGEN__)
+#define SERIAL_DEFAULT_BITRATE      38400
+#endif
+
+/**
+ * @brief   Serial buffers size.
+ * @details Configuration parameter, you can change the depth of the queue
+ *          buffers depending on the requirements of your application.
+ * @note    The default is 16 bytes for both the transmission and receive
+ *          buffers.
+ */
+#if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_BUFFERS_SIZE         16
+#endif
+
+/*===========================================================================*/
+/* SERIAL_USB driver related setting.                                        */
+/*===========================================================================*/
+
+/**
+ * @brief   Serial over USB buffers size.
+ * @details Configuration parameter, the buffer size must be a multiple of
+ *          the USB data endpoint maximum packet size.
+ * @note    The default is 256 bytes for both the transmission and receive
+ *          buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE     256
+#endif
+
+/**
+ * @brief   Serial over USB number of buffers.
+ * @note    The default is 2 buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_NUMBER) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_NUMBER   2
+#endif
+
+/*===========================================================================*/
+/* SPI driver related settings.                                              */
+/*===========================================================================*/
+
+/**
+ * @brief   Enables synchronous APIs.
+ * @note    Disabling this option saves both code and data space.
+ */
+#if !defined(SPI_USE_WAIT) || defined(__DOXYGEN__)
+#define SPI_USE_WAIT                TRUE
+#endif
+
+/**
+ * @brief   Enables the @p spiAcquireBus() and @p spiReleaseBus() APIs.
+ * @note    Disabling this option saves both code and data space.
+ */
+#if !defined(SPI_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
+#define SPI_USE_MUTUAL_EXCLUSION    TRUE
+#endif
+
+/*===========================================================================*/
+/* UART driver related settings.                                             */
+/*===========================================================================*/
+
+/**
+ * @brief   Enables synchronous APIs.
+ * @note    Disabling this option saves both code and data space.
+ */
+#if !defined(UART_USE_WAIT) || defined(__DOXYGEN__)
+#define UART_USE_WAIT               FALSE
+#endif
+
+/**
+ * @brief   Enables the @p uartAcquireBus() and @p uartReleaseBus() APIs.
+ * @note    Disabling this option saves both code and data space.
+ */
+#if !defined(UART_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
+#define UART_USE_MUTUAL_EXCLUSION   FALSE
+#endif
+
+/*===========================================================================*/
+/* USB driver related settings.                                              */
+/*===========================================================================*/
+
+/**
+ * @brief   Enables synchronous APIs.
+ * @note    Disabling this option saves both code and data space.
+ */
+#if !defined(USB_USE_WAIT) || defined(__DOXYGEN__)
+#define USB_USE_WAIT                FALSE
+#endif
+
+#endif /* HALCONF_H */
+
+/** @} */
diff --git a/keyboards/chibios_test/stm32_l476_onekey/led.c b/keyboards/chibios_test/stm32_l476_onekey/led.c
new file mode 100644
index 00000000..ca484e41
--- /dev/null
+++ b/keyboards/chibios_test/stm32_l476_onekey/led.c
@@ -0,0 +1,30 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "hal.h"
+#include "led.h"
+
+
+void led_set(uint8_t usb_led) {
+    // LD4: B2
+    // LD5: E8
+    if (usb_led & (1<<USB_LED_CAPS_LOCK)) {
+        palClearPad(GPIOB, 2);
+    } else {
+    	palSetPad(GPIOB, 2);
+    }
+}
diff --git a/keyboards/chibios_test/stm32_l476_onekey/matrix.c b/keyboards/chibios_test/stm32_l476_onekey/matrix.c
new file mode 100644
index 00000000..bb70e191
--- /dev/null
+++ b/keyboards/chibios_test/stm32_l476_onekey/matrix.c
@@ -0,0 +1,152 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "ch.h"
+#include "hal.h"
+
+/*
+ * scan matrix
+ */
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+#include "wait.h"
+
+#ifndef DEBOUNCE
+#   define DEBOUNCE 5
+#endif
+static uint8_t debouncing = DEBOUNCE;
+
+/* matrix state(1:on, 0:off) */
+static matrix_row_t matrix[MATRIX_ROWS];
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+
+static matrix_row_t read_cols(void);
+static void init_cols(void);
+static void unselect_rows(void);
+static void select_row(uint8_t row);
+
+
+inline
+uint8_t matrix_rows(void) {
+    return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void) {
+    return MATRIX_COLS;
+}
+
+#define LED_ON()    do { palClearPad(GPIOE, 8) ;} while (0)
+#define LED_OFF()   do { palSetPad(GPIOE, 8); } while (0)
+#define LED_TGL()   do { palTogglePad(GPIOE, 8); } while (0)
+
+void matrix_init(void) {
+    // initialize row and col
+    unselect_rows();
+    init_cols();
+
+    // initialize matrix state: all keys off
+    for (uint8_t i=0; i < MATRIX_ROWS; i++) {
+        matrix[i] = 0;
+        matrix_debouncing[i] = 0;
+    }
+
+    //debug
+    debug_matrix = true;
+    LED_ON();
+    wait_ms(500);
+    LED_OFF();
+}
+
+uint8_t matrix_scan(void) {
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+        select_row(i);
+        wait_us(30);  // without this wait read unstable value.
+        matrix_row_t cols = read_cols();
+        if (matrix_debouncing[i] != cols) {
+            matrix_debouncing[i] = cols;
+            if (debouncing) {
+                debug("bounce!: "); debug_hex(debouncing); debug("\n");
+            }
+            debouncing = DEBOUNCE;
+        }
+        unselect_rows();
+    }
+
+    if (debouncing) {
+        if (--debouncing) {
+            wait_ms(1);
+        } else {
+            for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+                matrix[i] = matrix_debouncing[i];
+            }
+        }
+    }
+
+    return 1;
+}
+
+inline
+bool matrix_is_on(uint8_t row, uint8_t col) {
+    return (matrix[row] & ((matrix_row_t)1<<col));
+}
+
+inline
+matrix_row_t matrix_get_row(uint8_t row) {
+    return matrix[row];
+}
+
+void matrix_print(void) {
+    print("\nr/c 0123456789ABCDEF\n");
+    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+        phex(row); print(": ");
+        pbin_reverse16(matrix_get_row(row));
+        print("\n");
+    }
+}
+
+/* Column pin configuration
+ */
+static void  init_cols(void) {
+    palSetPadMode(GPIOE, 15, PAL_MODE_INPUT_PULLDOWN);
+}
+
+/* Returns status of switches(1:on, 0:off) */
+static matrix_row_t read_cols(void)
+{
+    return ((palReadPad(GPIOE, 15)==PAL_LOW) ? 0 : (1<<0));
+    // | ((palReadPad(...)==PAL_HIGH) ? 0 : (1<<1))
+}
+
+/* Row pin configuration
+ */
+static void unselect_rows(void) {
+    // palSetPadMode(GPIOE, 14, PAL_MODE_INPUT); // hi-Z
+}
+
+static void select_row(uint8_t row) {
+    (void)row;
+    // Output low to select
+    // switch (row) {
+    //     case 0:
+    //         palSetPadMode(GPIOE, 14, PAL_MODE_OUTPUT_PUSHPULL);
+    //         palSetPad(GPIOE, 14, PAL_LOW);
+    //         break;
+    // }
+}
diff --git a/keyboards/chibios_test/stm32_l476_onekey/mcuconf.h b/keyboards/chibios_test/stm32_l476_onekey/mcuconf.h
new file mode 100644
index 00000000..b6f887b3
--- /dev/null
+++ b/keyboards/chibios_test/stm32_l476_onekey/mcuconf.h
@@ -0,0 +1,336 @@
+/*
+    ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#ifndef MCUCONF_H
+#define MCUCONF_H
+
+/*
+ * STM32L1xx drivers configuration.
+ * The following settings override the default settings present in
+ * the various device driver implementation headers.
+ * Note that the settings for each driver only have effect if the whole
+ * driver is enabled in halconf.h.
+ *
+ * IRQ priorities:
+ * 15...0       Lowest...Highest.
+ *
+ * DMA priorities:
+ * 0...3        Lowest...Highest.
+ */
+
+#define STM32L4xx_MCUCONF
+
+/*
+ * HAL driver system settings.
+ */
+#define STM32_NO_INIT                       FALSE
+#define STM32_VOS                           STM32_VOS_RANGE1
+#define STM32_PVD_ENABLE                    FALSE
+#define STM32_PLS                           STM32_PLS_LEV0
+#define STM32_HSI16_ENABLED                 FALSE
+#define STM32_LSI_ENABLED                   TRUE
+#define STM32_HSE_ENABLED                   FALSE
+#define STM32_LSE_ENABLED                   TRUE
+#define STM32_MSIPLL_ENABLED                TRUE
+#define STM32_ADC_CLOCK_ENABLED             TRUE
+#define STM32_USB_CLOCK_ENABLED             TRUE
+#define STM32_SAI1_CLOCK_ENABLED            TRUE
+#define STM32_SAI2_CLOCK_ENABLED            TRUE
+#define STM32_MSIRANGE                      STM32_MSIRANGE_4M
+#define STM32_MSISRANGE                     STM32_MSISRANGE_4M
+#define STM32_SW                            STM32_SW_PLL
+#define STM32_PLLSRC                        STM32_PLLSRC_MSI
+#define STM32_PLLM_VALUE                    1
+#define STM32_PLLN_VALUE                    80
+#define STM32_PLLP_VALUE                    7
+#define STM32_PLLQ_VALUE                    6
+#define STM32_PLLR_VALUE                    4
+#define STM32_HPRE                          STM32_HPRE_DIV1
+#define STM32_PPRE1                         STM32_PPRE1_DIV1
+#define STM32_PPRE2                         STM32_PPRE2_DIV1
+#define STM32_STOPWUCK                      STM32_STOPWUCK_MSI
+#define STM32_MCOSEL                        STM32_MCOSEL_NOCLOCK
+#define STM32_MCOPRE                        STM32_MCOPRE_DIV1
+#define STM32_LSCOSEL                       STM32_LSCOSEL_NOCLOCK
+#define STM32_PLLSAI1N_VALUE                72
+#define STM32_PLLSAI1P_VALUE                7
+#define STM32_PLLSAI1Q_VALUE                6
+#define STM32_PLLSAI1R_VALUE                6
+#define STM32_PLLSAI2N_VALUE                72
+#define STM32_PLLSAI2P_VALUE                7
+#define STM32_PLLSAI2R_VALUE                6
+#define STM32_USART1SEL                     STM32_USART1SEL_SYSCLK
+#define STM32_USART2SEL                     STM32_USART2SEL_SYSCLK
+#define STM32_USART3SEL                     STM32_USART3SEL_SYSCLK
+#define STM32_UART4SEL                      STM32_UART4SEL_SYSCLK
+#define STM32_UART5SEL                      STM32_UART5SEL_SYSCLK
+#define STM32_LPUART1SEL                    STM32_LPUART1SEL_SYSCLK
+#define STM32_I2C1SEL                       STM32_I2C1SEL_SYSCLK
+#define STM32_I2C2SEL                       STM32_I2C2SEL_SYSCLK
+#define STM32_I2C3SEL                       STM32_I2C3SEL_SYSCLK
+#define STM32_LPTIM1SEL                     STM32_LPTIM1SEL_PCLK1
+#define STM32_LPTIM2SEL                     STM32_LPTIM2SEL_PCLK1
+#define STM32_SAI1SEL                       STM32_SAI1SEL_OFF
+#define STM32_SAI2SEL                       STM32_SAI2SEL_OFF
+#define STM32_CLK48SEL                      STM32_CLK48SEL_PLLSAI1
+#define STM32_ADCSEL                        STM32_ADCSEL_SYSCLK
+#define STM32_SWPMI1SEL                     STM32_SWPMI1SEL_PCLK1
+#define STM32_DFSDMSEL                      STM32_DFSDMSEL_PCLK1
+#define STM32_RTCSEL                        STM32_RTCSEL_LSI
+
+/*
+ * ADC driver system settings.
+ */
+#define STM32_ADC_DUAL_MODE                 FALSE
+#define STM32_ADC_COMPACT_SAMPLES           FALSE
+#define STM32_ADC_USE_ADC1                  FALSE
+#define STM32_ADC_USE_ADC2                  FALSE
+#define STM32_ADC_USE_ADC3                  FALSE
+#define STM32_ADC_ADC1_DMA_STREAM           STM32_DMA_STREAM_ID(1, 1)
+#define STM32_ADC_ADC2_DMA_STREAM           STM32_DMA_STREAM_ID(1, 2)
+#define STM32_ADC_ADC3_DMA_STREAM           STM32_DMA_STREAM_ID(1, 3)
+#define STM32_ADC_ADC1_DMA_PRIORITY         2
+#define STM32_ADC_ADC2_DMA_PRIORITY         2
+#define STM32_ADC_ADC3_DMA_PRIORITY         2
+#define STM32_ADC_ADC12_IRQ_PRIORITY        5
+#define STM32_ADC_ADC3_IRQ_PRIORITY         5
+#define STM32_ADC_ADC1_DMA_IRQ_PRIORITY     5
+#define STM32_ADC_ADC2_DMA_IRQ_PRIORITY     5
+#define STM32_ADC_ADC3_DMA_IRQ_PRIORITY     5
+#define STM32_ADC_ADC123_CLOCK_MODE         ADC_CCR_CKMODE_AHB_DIV1
+
+/*
+ * CAN driver system settings.
+ */
+#define STM32_CAN_USE_CAN1                  FALSE
+#define STM32_CAN_CAN1_IRQ_PRIORITY         11
+
+/*
+ * DAC driver system settings.
+ */
+#define STM32_DAC_DUAL_MODE                 FALSE
+#define STM32_DAC_USE_DAC1_CH1              FALSE
+#define STM32_DAC_USE_DAC1_CH2              FALSE
+#define STM32_DAC_DAC1_CH1_IRQ_PRIORITY     10
+#define STM32_DAC_DAC1_CH2_IRQ_PRIORITY     10
+#define STM32_DAC_DAC1_CH1_DMA_PRIORITY     2
+#define STM32_DAC_DAC1_CH2_DMA_PRIORITY     2
+#define STM32_DAC_DAC1_CH1_DMA_STREAM       STM32_DMA_STREAM_ID(2, 4)
+#define STM32_DAC_DAC1_CH2_DMA_STREAM       STM32_DMA_STREAM_ID(1, 4)
+
+/*
+ * EXT driver system settings.
+ */
+#define STM32_EXT_EXTI0_IRQ_PRIORITY        6
+#define STM32_EXT_EXTI1_IRQ_PRIORITY        6
+#define STM32_EXT_EXTI2_IRQ_PRIORITY        6
+#define STM32_EXT_EXTI3_IRQ_PRIORITY        6
+#define STM32_EXT_EXTI4_IRQ_PRIORITY        6
+#define STM32_EXT_EXTI5_9_IRQ_PRIORITY      6
+#define STM32_EXT_EXTI10_15_IRQ_PRIORITY    6
+#define STM32_EXT_EXTI1635_38_IRQ_PRIORITY  6
+#define STM32_EXT_EXTI18_IRQ_PRIORITY       6
+#define STM32_EXT_EXTI19_IRQ_PRIORITY       6
+#define STM32_EXT_EXTI20_IRQ_PRIORITY       6
+#define STM32_EXT_EXTI2122_IRQ_PRIORITY     15
+
+
+/*
+ * GPT driver system settings.
+ */
+#define STM32_GPT_USE_TIM1                  FALSE
+#define STM32_GPT_USE_TIM2                  FALSE
+#define STM32_GPT_USE_TIM3                  FALSE
+#define STM32_GPT_USE_TIM4                  FALSE
+#define STM32_GPT_USE_TIM5                  FALSE
+#define STM32_GPT_USE_TIM6                  FALSE
+#define STM32_GPT_USE_TIM7                  FALSE
+#define STM32_GPT_USE_TIM8                  FALSE
+#define STM32_GPT_USE_TIM15                 FALSE
+#define STM32_GPT_USE_TIM16                 FALSE
+#define STM32_GPT_USE_TIM17                 FALSE
+#define STM32_GPT_TIM1_IRQ_PRIORITY         7
+#define STM32_GPT_TIM2_IRQ_PRIORITY         7
+#define STM32_GPT_TIM3_IRQ_PRIORITY         7
+#define STM32_GPT_TIM4_IRQ_PRIORITY         7
+#define STM32_GPT_TIM5_IRQ_PRIORITY         7
+#define STM32_GPT_TIM6_IRQ_PRIORITY         7
+#define STM32_GPT_TIM7_IRQ_PRIORITY         7
+#define STM32_GPT_TIM8_IRQ_PRIORITY         7
+#define STM32_GPT_TIM15_IRQ_PRIORITY        7
+#define STM32_GPT_TIM16_IRQ_PRIORITY        7
+#define STM32_GPT_TIM17_IRQ_PRIORITY        7
+
+/*
+ * I2C driver system settings.
+ */
+#define STM32_I2C_USE_I2C1                  FALSE
+#define STM32_I2C_USE_I2C2                  FALSE
+#define STM32_I2C_USE_I2C3                  FALSE
+#define STM32_I2C_BUSY_TIMEOUT              50
+#define STM32_I2C_I2C1_RX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 7)
+#define STM32_I2C_I2C1_TX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 6)
+#define STM32_I2C_I2C2_RX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 5)
+#define STM32_I2C_I2C2_TX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 4)
+#define STM32_I2C_I2C3_RX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 3)
+#define STM32_I2C_I2C3_TX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 2)
+#define STM32_I2C_I2C1_IRQ_PRIORITY         5
+#define STM32_I2C_I2C2_IRQ_PRIORITY         5
+#define STM32_I2C_I2C3_IRQ_PRIORITY         5
+#define STM32_I2C_I2C1_DMA_PRIORITY         3
+#define STM32_I2C_I2C2_DMA_PRIORITY         3
+#define STM32_I2C_I2C3_DMA_PRIORITY         3
+#define STM32_I2C_DMA_ERROR_HOOK(i2cp)      osalSysHalt("DMA failure")
+
+/*
+ * ICU driver system settings.
+ */
+#define STM32_ICU_USE_TIM1                  FALSE
+#define STM32_ICU_USE_TIM2                  FALSE
+#define STM32_ICU_USE_TIM3                  FALSE
+#define STM32_ICU_USE_TIM4                  FALSE
+#define STM32_ICU_USE_TIM5                  FALSE
+#define STM32_ICU_USE_TIM8                  FALSE
+#define STM32_ICU_TIM1_IRQ_PRIORITY         7
+#define STM32_ICU_TIM2_IRQ_PRIORITY         7
+#define STM32_ICU_TIM3_IRQ_PRIORITY         7
+#define STM32_ICU_TIM4_IRQ_PRIORITY         7
+#define STM32_ICU_TIM5_IRQ_PRIORITY         7
+#define STM32_ICU_TIM8_IRQ_PRIORITY         7
+
+/*
+ * PWM driver system settings.
+ */
+#define STM32_PWM_USE_ADVANCED              FALSE
+#define STM32_PWM_USE_TIM1                  FALSE
+#define STM32_PWM_USE_TIM2                  FALSE
+#define STM32_PWM_USE_TIM3                  FALSE
+#define STM32_PWM_USE_TIM4                  FALSE
+#define STM32_PWM_USE_TIM5                  FALSE
+#define STM32_PWM_USE_TIM8                  FALSE
+#define STM32_PWM_TIM1_IRQ_PRIORITY         7
+#define STM32_PWM_TIM2_IRQ_PRIORITY         7
+#define STM32_PWM_TIM3_IRQ_PRIORITY         7
+#define STM32_PWM_TIM4_IRQ_PRIORITY         7
+#define STM32_PWM_TIM5_IRQ_PRIORITY         7
+#define STM32_PWM_TIM8_IRQ_PRIORITY         7
+
+/*
+ * QSPI driver system settings.
+ */
+#define STM32_QSPI_USE_QUADSPI1             FALSE
+#define STM32_QSPI_QUADSPI1_DMA_STREAM      STM32_DMA_STREAM_ID(2, 7)
+
+/*
+ * SDC driver system settings.
+ */
+#define STM32_SDC_USE_SDMMC1                FALSE
+#define STM32_SDC_SDMMC_UNALIGNED_SUPPORT   TRUE
+#define STM32_SDC_SDMMC_WRITE_TIMEOUT       250
+#define STM32_SDC_SDMMC_READ_TIMEOUT        25
+#define STM32_SDC_SDMMC_CLOCK_DELAY         10
+#define STM32_SDC_SDMMC1_DMA_PRIORITY       3
+#define STM32_SDC_SDMMC1_IRQ_PRIORITY       9
+#define STM32_SDC_SDMMC1_DMA_STREAM         STM32_DMA_STREAM_ID(2, 4)
+
+/*
+ * SERIAL driver system settings.
+ */
+#define STM32_SERIAL_USE_USART1             FALSE
+#define STM32_SERIAL_USE_USART2             TRUE
+#define STM32_SERIAL_USE_USART3             FALSE
+#define STM32_SERIAL_USE_LPUART1            FALSE
+#define STM32_SERIAL_USART1_PRIORITY        12
+#define STM32_SERIAL_USART2_PRIORITY        12
+#define STM32_SERIAL_USART3_PRIORITY        12
+#define STM32_SERIAL_LPUART1_PRIORITY       12
+
+/*
+ * SPI driver system settings.
+ */
+#define STM32_SPI_USE_SPI1                  FALSE
+#define STM32_SPI_USE_SPI2                  FALSE
+#define STM32_SPI_USE_SPI3                  FALSE
+#define STM32_SPI_SPI1_RX_DMA_STREAM        STM32_DMA_STREAM_ID(2, 3)
+#define STM32_SPI_SPI1_TX_DMA_STREAM        STM32_DMA_STREAM_ID(2, 4)
+#define STM32_SPI_SPI2_RX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 4)
+#define STM32_SPI_SPI2_TX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 5)
+#define STM32_SPI_SPI3_RX_DMA_STREAM        STM32_DMA_STREAM_ID(2, 1)
+#define STM32_SPI_SPI3_TX_DMA_STREAM        STM32_DMA_STREAM_ID(2, 2)
+#define STM32_SPI_SPI1_DMA_PRIORITY         1
+#define STM32_SPI_SPI2_DMA_PRIORITY         1
+#define STM32_SPI_SPI3_DMA_PRIORITY         1
+#define STM32_SPI_SPI1_IRQ_PRIORITY         10
+#define STM32_SPI_SPI2_IRQ_PRIORITY         10
+#define STM32_SPI_SPI3_IRQ_PRIORITY         10
+#define STM32_SPI_DMA_ERROR_HOOK(spip)      osalSysHalt("DMA failure")
+
+/*
+ * ST driver system settings.+++
+ */
+#define STM32_ST_IRQ_PRIORITY               8
+#define STM32_ST_USE_TIMER                  2
+
+/*
+ * UART driver system settings.
+ */
+#define STM32_UART_USE_USART1               FALSE
+#define STM32_UART_USE_USART2               FALSE
+#define STM32_UART_USE_USART3               FALSE
+#define STM32_UART_USE_UART4                FALSE
+#define STM32_UART_USE_UART5                FALSE
+#define STM32_UART_USE_LPUART1              FALSE
+#define STM32_UART_USART1_RX_DMA_STREAM     STM32_DMA_STREAM_ID(2, 7)
+#define STM32_UART_USART1_TX_DMA_STREAM     STM32_DMA_STREAM_ID(2, 6)
+#define STM32_UART_USART2_RX_DMA_STREAM     STM32_DMA_STREAM_ID(1, 6)
+#define STM32_UART_USART2_TX_DMA_STREAM     STM32_DMA_STREAM_ID(1, 7)
+#define STM32_UART_USART3_RX_DMA_STREAM     STM32_DMA_STREAM_ID(1, 3)
+#define STM32_UART_USART3_TX_DMA_STREAM     STM32_DMA_STREAM_ID(1, 2)
+#define STM32_UART_UART4_RX_DMA_STREAM      STM32_DMA_STREAM_ID(2, 5)
+#define STM32_UART_UART4_TX_DMA_STREAM      STM32_DMA_STREAM_ID(2, 3)
+#define STM32_UART_UART5_RX_DMA_STREAM      STM32_DMA_STREAM_ID(2, 2)
+#define STM32_UART_UART5_TX_DMA_STREAM      STM32_DMA_STREAM_ID(2, 1)
+#define STM32_UART_LPUART1_RX_DMA_STREAM    STM32_DMA_STREAM_ID(2, 7)
+#define STM32_UART_LPUART1_TX_DMA_STREAM    STM32_DMA_STREAM_ID(2, 6)
+#define STM32_UART_USART1_IRQ_PRIORITY      12
+#define STM32_UART_USART2_IRQ_PRIORITY      12
+#define STM32_UART_USART3_IRQ_PRIORITY      12
+#define STM32_UART_UART4_IRQ_PRIORITY       12
+#define STM32_UART_UART5_IRQ_PRIORITY       12
+#define STM32_UART_USART1_DMA_PRIORITY      0
+#define STM32_UART_USART2_DMA_PRIORITY      0
+#define STM32_UART_USART3_DMA_PRIORITY      0
+#define STM32_UART_UART4_DMA_PRIORITY       0
+#define STM32_UART_UART5_DMA_PRIORITY       0
+#define STM32_UART_LPUART1_DMA_PRIORITY     0
+#define STM32_UART_DMA_ERROR_HOOK(uartp)    osalSysHalt("DMA failure")
+
+/*
+ * USB driver system settings.
+ */
+#define STM32_USB_USE_OTG1                  FALSE
+#define STM32_USB_OTG1_IRQ_PRIORITY         14
+#define STM32_USB_OTG1_RX_FIFO_SIZE         512
+#define STM32_USB_OTG_THREAD_PRIO           LOWPRIO
+#define STM32_USB_OTG_THREAD_STACK_SIZE     128
+#define STM32_USB_OTGFIFO_FILL_BASEPRI      0
+
+/*
+ * WDG driver system settings.+++
+ */
+#define STM32_WDG_USE_IWDG                  FALSE
+
+#endif /* MCUCONF_H */
diff --git a/keyboards/chibios_test/stm32_l476_onekey/rules.mk b/keyboards/chibios_test/stm32_l476_onekey/rules.mk
new file mode 100644
index 00000000..9d713b56
--- /dev/null
+++ b/keyboards/chibios_test/stm32_l476_onekey/rules.mk
@@ -0,0 +1,35 @@
+# project specific files
+SRC =	matrix.c \
+	    led.c
+
+# STM32L476 Discovery board
+MCU_LDSCRIPT = STM32L476xG
+BOARD = ST_STM32L476_DISCOVERY
+
+## chip/board settings
+# the next two should match the directories in
+#  <chibios>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+MCU_FAMILY = STM32
+MCU_SERIES = STM32L4xx
+# linker script to use
+# it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
+#  or <this_dir>/ld/
+# startup code to use
+# is should exist in <chibios>/os/common/ports/ARMCMx/compilers/GCC/mk/
+MCU_STARTUP = stm32l4xx
+# it should exist either in <chibios>/os/hal/boards/
+#  or <this_dir>/boards
+# Cortex version
+MCU  = cortex-m4
+# ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+ARMV = 7
+# If you want to be able to jump to bootloader from firmware on STM32 MCUs,
+# set the correct BOOTLOADER_ADDRESS. Either set it here, or define it in
+# ./bootloader_defs.h or in ./boards/<FOO>/bootloader_defs.h (if you have
+# a custom board definition that you plan to reuse).
+# If you're not setting it here, leave it commented out.
+# It is chip dependent, the correct number can be looked up here (page 175):
+# http://www.st.com/web/en/resource/technical/document/application_note/CD00167594.pdf
+# This also requires a patch to chibios:
+#   <tmk_dir>/tmk_core/tool/chibios/ch-bootloader-jump.patch
+#STM32_BOOTLOADER_ADDRESS = 0x1FFF0000
diff --git a/keyboards/chibios_test/stm32_l476_onekey/stm32_l476_onekey.c b/keyboards/chibios_test/stm32_l476_onekey/stm32_l476_onekey.c
new file mode 100644
index 00000000..cb3ead97
--- /dev/null
+++ b/keyboards/chibios_test/stm32_l476_onekey/stm32_l476_onekey.c
@@ -0,0 +1 @@
+#include "stm32_l476_onekey.h"
diff --git a/keyboards/chibios_test/stm32_l476_onekey/stm32_l476_onekey.h b/keyboards/chibios_test/stm32_l476_onekey/stm32_l476_onekey.h
new file mode 100644
index 00000000..dc043256
--- /dev/null
+++ b/keyboards/chibios_test/stm32_l476_onekey/stm32_l476_onekey.h
@@ -0,0 +1,4 @@
+#ifndef STM32_L476_ONEKEY_H
+#define STM32_L476_ONEKEY_H
+#include "chibios_test.h"
+#endif