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diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_NXP/TARGET_LPC43XX/system_LPC43xx.h b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_NXP/TARGET_LPC43XX/system_LPC43xx.h
new file mode 100644
index 000000000..dcea2ffd4
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+++ b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_NXP/TARGET_LPC43XX/system_LPC43xx.h
@@ -0,0 +1,90 @@
+/*
+ * @brief LPC43xx/LPC18xx mcu header
+ *
+ * Copyright(C) NXP Semiconductors, 2012
+ * All rights reserved.
+ *
+ * Software that is described herein is for illustrative purposes only
+ * which provides customers with programming information regarding the
+ * LPC products.  This software is supplied "AS IS" without any warranties of
+ * any kind, and NXP Semiconductors and its licensor disclaim any and
+ * all warranties, express or implied, including all implied warranties of
+ * merchantability, fitness for a particular purpose and non-infringement of
+ * intellectual property rights.  NXP Semiconductors assumes no responsibility
+ * or liability for the use of the software, conveys no license or rights under any
+ * patent, copyright, mask work right, or any other intellectual property rights in
+ * or to any products. NXP Semiconductors reserves the right to make changes
+ * in the software without notification. NXP Semiconductors also makes no
+ * representation or warranty that such application will be suitable for the
+ * specified use without further testing or modification.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation is hereby granted, under NXP Semiconductors' and its
+ * licensor's relevant copyrights in the software, without fee, provided that it
+ * is used in conjunction with NXP Semiconductors microcontrollers.  This
+ * copyright, permission, and disclaimer notice must appear in all copies of
+ * this code.
+ */
+
+#ifndef __SYSTEM_LPC43XX_H
+#define __SYSTEM_LPC43XX_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* System initialization options */
+#define PIN_SETUP             1 /* Configure pins during initialization */
+#define CLOCK_SETUP           1 /* Configure clocks during initialization */
+#define MEMORY_SETUP          0 /* Configure external memory during init */
+#define SPIFI_INIT            1 /* Initialize SPIFI */
+
+/* Crystal frequency into device */
+#define CRYSTAL_MAIN_FREQ_IN 12000000
+
+/* Crystal frequency into device for RTC/32K input */
+#define CRYSTAL_32K_FREQ_IN 32768
+
+/* Default CPU clock frequency */
+#if defined(CHIP_LPC43XX)
+#define MAX_CLOCK_FREQ (204000000)
+#else
+#define MAX_CLOCK_FREQ (180000000)
+#endif
+
+#if defined(__FPU_PRESENT) && __FPU_PRESENT == 1
+  /* FPU declarations */
+  #define LPC_CPACR	          0xE000ED88
+
+  #define SCB_MVFR0           0xE000EF40
+  #define SCB_MVFR0_RESET     0x10110021
+
+  #define SCB_MVFR1           0xE000EF44
+  #define SCB_MVFR1_RESET     0x11000011
+
+  #if defined(__ARMCC_VERSION)
+    void fpuInit(void) __attribute__ ((section("BOOTSTRAP_CODE")));
+  #else
+    extern void fpuInit(void);
+  #endif
+#endif
+
+extern uint32_t SystemCoreClock;     /*!< System Clock Frequency (Core Clock)  */
+
+/**
+ * Initialize the system
+ *
+ * @param  none
+ * @return none
+ *
+ * @brief  Setup the microcontroller system.
+ *         Initialize the System and update the SystemCoreClock variable.
+ */
+extern void SystemInit (void);
+extern void SystemCoreClockUpdate(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __SYSTEM_LPC43XX_H */