[Keyboard] Added support for ErgoDox with STM32 Microcontroller (#5398)

* Began Work On STM32 Ergodox
 Changes to be committed:
	new file:   keyboards/ergodox_stm32/config.h
	new file:   keyboards/ergodox_stm32/rules.mk

* test

* Now it compile. Not linking thou

* Screw this Linker. It links now!

* Blinkly Keyboard

* bootloader test code

* Working on matrix / i2c stuff

* Progress (LED Blink)

* Progress on MCP_23017 Status Flag

* [WIP]

* update

* Works! Remeber to change back the bootloader address when the new bootloadrer is ready.

* Time to go debug the i2c

* Finally, it now works with PCB Rev 1.0.2

* updated for rev.2 pcb

* minor compilation fix

* Why when debugger is enabled then everything works.

* Remeber to call init functions.

* Update arm i2c driver to support STM32F103 series device.

* fix include once header. Replaced with #pragma once.

* complication test

14 files changed, 1971 insertions, 0 deletions

diff --git a/keyboards/ergodox_stm32/boards/ERGODOX_STM32_BOARD/board.c b/keyboards/ergodox_stm32/boards/ERGODOX_STM32_BOARD/board.c
new file mode 100644
index 0000000000..d953d6a135
--- /dev/null
+++ b/keyboards/ergodox_stm32/boards/ERGODOX_STM32_BOARD/board.c
@@ -0,0 +1,51 @@
+/*
+    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.
+*/
+
+#include "hal.h"
+
+/**
+ * @brief   PAL setup.
+ * @details Digital I/O ports static configuration as defined in @p board.h.
+ *          This variable is used by the HAL when initializing the PAL driver.
+ */
+#if HAL_USE_PAL || defined(__DOXYGEN__)
+const PALConfig pal_default_config =
+{
+  {VAL_GPIOAODR, VAL_GPIOACRL, VAL_GPIOACRH},
+  {VAL_GPIOBODR, VAL_GPIOBCRL, VAL_GPIOBCRH},
+  {VAL_GPIOCODR, VAL_GPIOCCRL, VAL_GPIOCCRH},
+  {VAL_GPIODODR, VAL_GPIODCRL, VAL_GPIODCRH},
+  {VAL_GPIOEODR, VAL_GPIOECRL, VAL_GPIOECRH},
+};
+#endif
+
+/*
+ * Early initialization code.
+ * This initialization must be performed just after stack setup and before
+ * any other initialization.
+ */
+void __early_init(void) {
+
+  stm32_clock_init();
+}
+
+/*
+ * Board-specific initialization code.
+ */
+void boardInit(void) {
+	AFIO->MAPR |= AFIO_MAPR_SWJ_CFG_JTAGDISABLE;
+
+}
diff --git a/keyboards/ergodox_stm32/boards/ERGODOX_STM32_BOARD/board.h b/keyboards/ergodox_stm32/boards/ERGODOX_STM32_BOARD/board.h
new file mode 100644
index 0000000000..307a17e388
--- /dev/null
+++ b/keyboards/ergodox_stm32/boards/ERGODOX_STM32_BOARD/board.h
@@ -0,0 +1,142 @@
+/*
+    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 _BOARD_H_
+#define _BOARD_H_
+
+/*
+ * Board identifier.
+ */
+#define BOARD_JM60
+#define BOARD_NAME              "ErgoDox STM32 Keyboard"
+
+/*
+ * Board frequencies.
+ */
+#define STM32_LSECLK            0
+#define STM32_HSECLK            8000000
+
+/*
+ * MCU type, supported types are defined in ./os/hal/platforms/hal_lld.h.
+ *
+ * Only xB (128KB Flash) is defined, but it's identical to the
+ * x8 version (64KB Flash) except for the Flash region size in the
+ * linker script. For x8 parts use xB here and change to the x8 linker
+ * script in the project Makefile.
+ */
+#define STM32F103xB
+
+/*
+ * IO pins assignments
+ *
+ * numbering is sorted by onboard/connectors, as from the schematics in
+ * http://www.vcc-gnd.com/read.php?tid=369
+ */
+
+/* on-board */
+#define GPIOA_USBDM             11      // pin 8
+#define GPIOA_USBDP             12      // pin 9
+
+#define GPIOC_OSC32_IN          14
+#define GPIOC_OSC32_OUT         15
+
+/*
+ * I/O ports initial setup, this configuration is established soon after reset
+ * in the initialization code.
+ *
+ * The digits have the following meaning:
+ *   0 - Analog input.
+ *   1 - Push Pull output 10MHz.
+ *   2 - Push Pull output 2MHz.
+ *   3 - Push Pull output 50MHz.
+ *   4 - Digital input.
+ *   5 - Open Drain output 10MHz.
+ *   6 - Open Drain output 2MHz.
+ *   7 - Open Drain output 50MHz.
+ *   8 - Digital input with PullUp or PullDown resistor depending on ODR.
+ *   9 - Alternate Push Pull output 10MHz.
+ *   A - Alternate Push Pull output 2MHz.
+ *   B - Alternate Push Pull output 50MHz.
+ *   C - Reserved.
+ *   D - Alternate Open Drain output 10MHz.
+ *   E - Alternate Open Drain output 2MHz.
+ *   F - Alternate Open Drain output 50MHz.
+ * Please refer to the STM32 Reference Manual for details.
+ */
+
+/*
+ * Port A setup.
+ * Everything input with pull-up except:
+ */
+#define VAL_GPIOACRL            0x88888888      /*  PA7...PA0 */
+#define VAL_GPIOACRH            0x88888888      /* PA15...PA8 */
+#define VAL_GPIOAODR            0xFFFFFFFF
+
+/*
+ * Port B setup.
+ * Everything input with pull-up except:
+ */
+#define VAL_GPIOBCRL            0x88888888      /*  PB7...PB0 */
+#define VAL_GPIOBCRH            0x88888888      /* PB15...PB8 */
+#define VAL_GPIOBODR            0xFFFFFFFF
+
+/*
+ * Port C setup.
+ * Everything input with pull-up except:
+ */
+#define VAL_GPIOCCRL            0x88888888      /*  PC7...PC0 */
+#define VAL_GPIOCCRH            0x88888888      /* PC15...PC8 */
+#define VAL_GPIOCODR            0xFFFFFFFF
+
+/*
+ * Port D setup.
+ * Everything input with pull-up except:
+ * PD0  - Normal input (XTAL).
+ * PD1  - Normal input (XTAL).
+ */
+#define VAL_GPIODCRL            0x88888844      /*  PD7...PD0 */
+#define VAL_GPIODCRH            0x88888888      /* PD15...PD8 */
+#define VAL_GPIODODR            0xFFFFFFFF
+
+/*
+ * Port E setup.
+ * Everything input with pull-up except:
+ */
+#define VAL_GPIOECRL            0x88888888      /*  PE7...PE0 */
+#define VAL_GPIOECRH            0x88888888      /* PE15...PE8 */
+#define VAL_GPIOEODR            0xFFFFFFFF
+
+/*
+ * USB bus activation macro, required by the USB driver.
+ */
+#define usb_lld_connect_bus(usbp)	/* always connected */
+
+/*
+ * USB bus de-activation macro, required by the USB driver.
+ */
+#define usb_lld_disconnect_bus(usbp)	/* always connected */
+
+#if !defined(_FROM_ASM_)
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void boardInit(void);
+#ifdef __cplusplus
+}
+#endif
+#endif /* _FROM_ASM_ */
+
+#endif /* _BOARD_H_ */
diff --git a/keyboards/ergodox_stm32/boards/ERGODOX_STM32_BOARD/board.mk b/keyboards/ergodox_stm32/boards/ERGODOX_STM32_BOARD/board.mk
new file mode 100644
index 0000000000..85ff835ef4
--- /dev/null
+++ b/keyboards/ergodox_stm32/boards/ERGODOX_STM32_BOARD/board.mk
@@ -0,0 +1,5 @@
+# List of all the board related files.
+BOARDSRC = $(BOARD_PATH)/boards/ERGODOX_STM32_BOARD/board.c
+
+# Required include directories
+BOARDINC = $(BOARD_PATH)/boards/ERGODOX_STM32_BOARD
diff --git a/keyboards/ergodox_stm32/chconf.h b/keyboards/ergodox_stm32/chconf.h
new file mode 100644
index 0000000000..d9114ec858
--- /dev/null
+++ b/keyboards/ergodox_stm32/chconf.h
@@ -0,0 +1,524 @@
+/*
+    ChibiOS - Copyright (C) 2006..2015 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                 100000
+
+/**
+ * @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                 0
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @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                 20
+
+/**
+ * @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
+
+/* Use __WFI in the idle thread for waiting. Does lower the power
+ * consumption. */
+#define CORTEX_ENABLE_WFI_IDLE              TRUE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @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                       FALSE
+
+/**
+ * @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/ergodox_stm32/config.h b/keyboards/ergodox_stm32/config.h
new file mode 100644
index 0000000000..5305655214
--- /dev/null
+++ b/keyboards/ergodox_stm32/config.h
@@ -0,0 +1,35 @@
+/*
+Copyright 2019 Yaotian Feng(Codetector) <codetector@codetector.cn>
+
+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/>.
+*/
+#pragma once
+
+#include "config_common.h"
+
+#define VENDOR_ID 0xFEED
+#define PRODUCT_ID 0x1308
+#define DEVICE_VER 0x101
+#define MANUFACTURER ErgoDox
+#define PRODUCT ErgoDox STM
+#define DESCRIPTION ErgoDox STM32 Keyboard
+
+#define MATRIX_ROWS 14
+#define MATRIX_ROWS_PER_SIDE (MATRIX_ROWS / 2)
+#define MATRIX_COLS 6
+/* key combination for command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (MOD_BIT(KC_LCTL) | MOD_BIT(KC_RCTL)) || \
+    keyboard_report->mods == (MOD_BIT(KC_LSFT) | MOD_BIT(KC_RSFT)) \
+)
diff --git a/keyboards/ergodox_stm32/ergodox_stm32.c b/keyboards/ergodox_stm32/ergodox_stm32.c
new file mode 100644
index 0000000000..176fb3f43a
--- /dev/null
+++ b/keyboards/ergodox_stm32/ergodox_stm32.c
@@ -0,0 +1,65 @@
+#include "i2c_master.h"
+#include QMK_KEYBOARD_H
+
+extern inline void ergodox_board_led_1_on(void);
+extern inline void ergodox_board_led_2_on(void);
+extern inline void ergodox_board_led_3_on(void);
+extern inline void ergodox_board_led_1_off(void);
+extern inline void ergodox_board_led_2_off(void);
+extern inline void ergodox_board_led_3_off(void);
+extern inline void ergodox_led_all_off(void);
+
+volatile int mcp23017_status = 0x20;
+uint8_t i2c_initializied = 0;
+
+void matrix_init_kb(void)
+{
+    // Init LED Ports
+    palSetPadMode(GPIOA, 10, PAL_MODE_OUTPUT_PUSHPULL); // LED 1
+    palSetPadMode(GPIOA, 9, PAL_MODE_OUTPUT_PUSHPULL); // LED 2
+    palSetPadMode(GPIOA, 8, PAL_MODE_OUTPUT_PUSHPULL); // LED 3
+
+    ergodox_blink_all_leds();
+
+    matrix_init_user();
+}
+
+void ergodox_blink_all_leds(void)
+{
+    ergodox_led_all_off();
+    // ergodox_led_all_set(LED_BRIGHTNESS_DEFAULT);
+    ergodox_board_led_1_on();
+    wait_ms(50);
+    ergodox_board_led_2_on();
+    wait_ms(50);
+    ergodox_board_led_3_on();
+    wait_ms(50);
+    ergodox_board_led_1_off();
+    wait_ms(50);
+    ergodox_board_led_2_off();
+    wait_ms(50);
+    ergodox_board_led_3_off();
+}
+
+uint8_t init_mcp23017(void) {
+    if (!i2c_initializied) {
+        i2c_init();
+        i2c_initializied = 1;
+    }
+
+    uint8_t data[2];
+    data[0] = 0x0;
+    data[1] = 0b00111111;
+    mcp23017_status = i2c_writeReg(I2C_ADDR, I2C_IODIRA, data, 2, 50000);
+    if (mcp23017_status) goto out;
+    data[0] = 0xFFU;
+    mcp23017_status = i2c_writeReg(I2C_ADDR, I2C_GPIOA, data, 1, 5000);
+    if (mcp23017_status) goto out;
+    mcp23017_status = i2c_writeReg(I2C_ADDR, I2C_GPPUB, data+1, 1, 2);
+    if (mcp23017_status) goto out;
+
+ out:
+    return mcp23017_status;
+    // i2c_readReg(I2C_ADDR, );
+}
+
diff --git a/keyboards/ergodox_stm32/ergodox_stm32.h b/keyboards/ergodox_stm32/ergodox_stm32.h
new file mode 100644
index 0000000000..be1c2e9c3b
--- /dev/null
+++ b/keyboards/ergodox_stm32/ergodox_stm32.h
@@ -0,0 +1,114 @@
+#pragma once
+
+#include "quantum.h"
+#include "action_layer.h"
+#include <stdint.h>
+#include <stdbool.h>
+#include "hal.h"
+
+// #define I2C_ADDR 0b01000000
+#define I2C_ADDR 0b01000000
+#define I2C_IODIRA 0x0
+#define I2C_IODIRB 0x1
+#define I2C_GPIOA 0x12
+#define I2C_GPIOB 0x13
+#define I2C_OLATA 0x14
+#define I2C_OLATB 0x15
+#define I2C_GPPUA 0x0C
+#define I2C_GPPUB 0x0D
+
+inline void ergodox_board_led_1_on(void) { palSetPad(GPIOA, 10); }
+inline void ergodox_board_led_2_on(void) { palSetPad(GPIOA, 9); }
+inline void ergodox_board_led_3_on(void) { palSetPad(GPIOA, 8); }
+inline void ergodox_board_led_1_off(void) { palClearPad(GPIOA, 10); }
+inline void ergodox_board_led_2_off(void) { palClearPad(GPIOA, 9); }
+inline void ergodox_board_led_3_off(void) { palClearPad(GPIOA, 8); }
+inline void ergodox_led_all_off(void)
+{
+  palClearPad(GPIOA, 10);
+  palClearPad(GPIOA, 9);
+  palClearPad(GPIOA, 8);
+}
+
+extern volatile int mcp23017_status;
+
+uint8_t init_mcp23017(void);
+
+void ergodox_blink_all_leds(void);
+
+/*
+ *   LEFT HAND: LINES 115-122
+ *  RIGHT HAND: LINES 124-131
+ */
+#define LAYOUT_ergodox(                     \
+                                            \
+    k00, k01, k02, k03, k04, k05, k06,      \
+    k10, k11, k12, k13, k14, k15, k16,      \
+    k20, k21, k22, k23, k24, k25,           \
+    k30, k31, k32, k33, k34, k35, k36,      \
+    k40, k41, k42, k43, k44,                \
+    k55, k56,                               \
+    k54,                                    \
+    k53, k52, k51,                          \
+                                            \
+    k07, k08, k09, k0A, k0B, k0C, k0D,      \
+    k17, k18, k19, k1A, k1B, k1C, k1D,      \
+    k28, k29, k2A, k2B, k2C, k2D,           \
+    k37, k38, k39, k3A, k3B, k3C, k3D,      \
+    k49, k4A, k4B, k4C, k4D,                \
+    k57, k58,                               \
+    k59,                                    \
+    k5C, k5B, k5A)                          \
+                                            \
+  /* matrix positions */                    \
+  {                                         \
+    {k00, k10, k20, k30, k40, KC_NO},       \
+        {k01, k11, k21, k31, k41, k51},     \
+        {k02, k12, k22, k32, k42, k52},     \
+        {k03, k13, k23, k33, k43, k53},     \
+        {k04, k14, k24, k34, k44, k54},     \
+        {k05, k15, k25, k35, KC_NO, k55},   \
+        {k06, k16, KC_NO, k36, KC_NO, k56}, \
+                                            \
+        {k07, k17, KC_NO, k37, KC_NO, k57}, \
+        {k08, k18, k28, k38, KC_NO, k58},   \
+        {k09, k19, k29, k39, k49, k59},     \
+        {k0A, k1A, k2A, k3A, k4A, k5A},     \
+        {k0B, k1B, k2B, k3B, k4B, k5B},     \
+        {k0C, k1C, k2C, k3C, k4C, k5C},     \
+    {                                       \
+      k0D, k1D, k2D, k3D, k4D, KC_NO        \
+    }                                       \
+  }
+
+/*  ---------- LEFT HAND -----------   ---------- RIGHT HAND ---------- */
+#define LAYOUT_ergodox_pretty(                                            \
+    L00, L01, L02, L03, L04, L05, L06, R00, R01, R02, R03, R04, R05, R06, \
+    L10, L11, L12, L13, L14, L15, L16, R10, R11, R12, R13, R14, R15, R16, \
+    L20, L21, L22, L23, L24, L25, R21, R22, R23, R24, R25, R26,           \
+    L30, L31, L32, L33, L34, L35, L36, R30, R31, R32, R33, R34, R35, R36, \
+    L40, L41, L42, L43, L44, R42, R43, R44, R45, R46,                     \
+    L55,