Merge pull request #686 from wmpluto/m451

[BSP] add nuvoton m451 bsp with gcc&keil support

bsp/nuvoton_m451/.gitignore

+Nu_Link_Driver.ini
+rmf.py
+*.ewd
+*.ewt
+*.uvoptx
+*.uvguix.*

bsp/nuvoton_m451/Libraries/CMSIS/Include/arm_common_tables.h

+/* ---------------------------------------------------------------------- 
+* Copyright (C) 2010 ARM Limited. All rights reserved. 
+* 
+* $Date: 14/06/07 1:58a $Revision: 	V1.0.2  
+* 
+* Project: 	    CMSIS DSP Library 
+* Title:	    arm_common_tables.h 
+* 
+* Description:	This file has extern declaration for common tables like Bitreverse, reciprocal etc which are used across different functions 
+* 
+* Target Processor: Cortex-M4/Cortex-M3
+*  
+* Version 1.0.2 2010/11/11 
+*    Documentation updated.  
+* 
+* Version 1.0.1 2010/10/05  
+*    Production release and review comments incorporated. 
+* 
+* Version 1.0.0 2010/09/20  
+*    Production release and review comments incorporated. 
+* -------------------------------------------------------------------- */
+
+#ifndef _ARM_COMMON_TABLES_H
+#define _ARM_COMMON_TABLES_H
+
+#include "arm_math.h"
+
+extern const uint16_t armBitRevTable[1024];
+extern const q15_t armRecipTableQ15[64];
+extern const q31_t armRecipTableQ31[64];
+extern const q31_t realCoefAQ31[1024];
+extern const q31_t realCoefBQ31[1024];
+extern const float32_t twiddleCoef[6144];
+extern const q31_t twiddleCoefQ31[6144];
+extern const q15_t twiddleCoefQ15[6144];
+
+#endif /*  ARM_COMMON_TABLES_H */

bsp/nuvoton_m451/Libraries/Device/Nuvoton/M451Series/Include/system_M451Series.h

+/******************************************************************************
+ * @file     system_M451Series.h
+ * @version  V0.10
+ * $Revision: 7 $
+ * $Date: 15/09/02 10:02a $
+ * @brief    CMSIS Cortex-M4 Core Peripheral Access Layer Header File for M451 Series MCU
+ *
+ * @note
+ * Copyright (C) 2013~2015 Nuvoton Technology Corp. All rights reserved.
+*****************************************************************************/
+
+#ifndef __SYSTEM_M451SERIES_H__
+#define __SYSTEM_M451SERIES_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+/*---------------------------------------------------------------------------------------------------------*/
+/* Macro Definition                                                                                        */
+/*---------------------------------------------------------------------------------------------------------*/
+#ifndef DEBUG_PORT
+# define DEBUG_PORT      UART0       /*!< Select Debug Port which is used for retarget.c to output debug message to UART */
+#endif
+
+
+/*----------------------------------------------------------------------------
+  Define clocks
+ *----------------------------------------------------------------------------*/
+
+#define __HSI       (12000000UL)    /*!< PLL default output is 72MHz */
+#define __HXT       (12000000UL)    /*!< External Crystal Clock Frequency     */
+#define __LXT       (32768UL)       /*!< External Crystal Clock Frequency 32.768KHz */
+#define __HIRC      (22118400UL)    /*!< Internal 22M RC Oscillator Frequency */
+#define __LIRC      (10000UL)       /*!< Internal 10K RC Oscillator Frequency */
+#define __SYS_OSC_CLK     (    ___HSI)    /* Main oscillator frequency        */
+
+
+#define __SYSTEM_CLOCK    (1*__HXT)
+
+extern uint32_t SystemCoreClock;     /*!< System Clock Frequency (Core Clock)  */
+extern uint32_t CyclesPerUs;         /*!< Cycles per micro second              */
+extern uint32_t PllClock;            /*!< PLL Output Clock Frequency           */
+
+
+/**
+ * Initialize the system
+ *
+ * @param  None
+ * @return None
+ *
+ * @brief  Setup the microcontroller system.
+ *         Initialize the System and update the SystemCoreClock variable.
+ */
+extern void SystemInit(void);
+
+/**
+ * Update SystemCoreClock variable
+ *
+ * @param  None
+ * @return None
+ *
+ * @brief  Updates the SystemCoreClock with current core Clock
+ *         retrieved from cpu registers.
+ */
+extern void SystemCoreClockUpdate(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __SYSTEM_M451SERIES_H__ */
+/*** (C) COPYRIGHT 2013~2015 Nuvoton Technology Corp. ***/

bsp/nuvoton_m451/Libraries/Device/SConscript

+# RT-Thread building script for component
+
+Import('rtconfig')
+import os
+from building import *
+
+CPPDEFINES = []
+cwd = GetCurrentDir()
+src = Split('''
+Nuvoton/M451Series/Source/system_M451Series.c
+''')
+CPPPATH = [cwd + '/Nuvoton/M451Series/Include']
+CPPPATH += [os.path.dirname(cwd) + '/CMSIS/Include']
+
+#add for startup script 
+if rtconfig.CROSS_TOOL == 'iar':
+     src = src + ['Nuvoton/M451Series/Source/IAR/startup_M451Series.s']
+elif rtconfig.CROSS_TOOL == 'keil':
+     src = src + ['Nuvoton/M451Series/Source/ARM/startup_M451Series.s']
+elif rtconfig.CROSS_TOOL == 'gcc':
+     src = src + ['Nuvoton/M451Series/Source/GCC/startup_M451Series.s']
+
+group = DefineGroup('CMSIS', src, depend = [''], CPPPATH = CPPPATH, CPPDEFINES = CPPDEFINES)
+
+Return('group')

bsp/nuvoton_m451/Libraries/SConscript

+# RT-Thread building script for bridge
+
+import os
+from building import *
+
+cwd = GetCurrentDir()
+objs = []
+list = os.listdir(cwd)
+
+for d in list:
+    path = os.path.join(cwd, d)
+    if os.path.isfile(os.path.join(path, 'SConscript')):
+        objs = objs + SConscript(os.path.join(d, 'SConscript'))
+
+Return('objs')

bsp/nuvoton_m451/Libraries/StdDriver/SConscript

+import os
+import rtconfig
+Import('RTT_ROOT')
+from building import *
+
+CPPDEFINES = []
+# get current directory
+cwd = GetCurrentDir()
+
+# The set of source files associated with this SConscript file.
+
+src = Glob('src/*.c')
+# Remove retarget.c As there is a HardFaultHandler in it
+for src_f in src:
+    if 'retarget.c' in src_f.path:
+        src.remove(src_f)
+        
+path = [cwd + '/inc']
+
+group = DefineGroup('StdDriver', src, depend = [''], CPPPATH = path, CPPDEFINES = CPPDEFINES)
+
+Return('group')
+