tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_NXP/TARGET_LPC43XX/system_LPC43xx.h

   1 /*
   2  * @brief LPC43xx/LPC18xx mcu header
   3  *
   4  * Copyright(C) NXP Semiconductors, 2012
   5  * All rights reserved.
   6  *
   7  * Software that is described herein is for illustrative purposes only
   8  * which provides customers with programming information regarding the
   9  * LPC products.  This software is supplied "AS IS" without any warranties of
  10  * any kind, and NXP Semiconductors and its licensor disclaim any and
  11  * all warranties, express or implied, including all implied warranties of
  12  * merchantability, fitness for a particular purpose and non-infringement of
  13  * intellectual property rights.  NXP Semiconductors assumes no responsibility
  14  * or liability for the use of the software, conveys no license or rights under any
  15  * patent, copyright, mask work right, or any other intellectual property rights in
  16  * or to any products. NXP Semiconductors reserves the right to make changes
  17  * in the software without notification. NXP Semiconductors also makes no
  18  * representation or warranty that such application will be suitable for the
  19  * specified use without further testing or modification.
  20  *
  21  * Permission to use, copy, modify, and distribute this software and its
  22  * documentation is hereby granted, under NXP Semiconductors' and its
  23  * licensor's relevant copyrights in the software, without fee, provided that it
  24  * is used in conjunction with NXP Semiconductors microcontrollers.  This
  25  * copyright, permission, and disclaimer notice must appear in all copies of
  26  * this code.
  27  */
  28
  29 #ifndef __SYSTEM_LPC43XX_H
  30 #define __SYSTEM_LPC43XX_H
  31
  32 #ifdef __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 /* System initialization options */
  37 #define PIN_SETUP             1 /* Configure pins during initialization */
  38 #define CLOCK_SETUP           1 /* Configure clocks during initialization */
  39 #define MEMORY_SETUP          0 /* Configure external memory during init */
  40 #define SPIFI_INIT            1 /* Initialize SPIFI */
  41
  42 /* Crystal frequency into device */
  43 #define CRYSTAL_MAIN_FREQ_IN 12000000
  44
  45 /* Crystal frequency into device for RTC/32K input */
  46 #define CRYSTAL_32K_FREQ_IN 32768
  47
  48 /* Default CPU clock frequency */
  49 #if defined(CHIP_LPC43XX)
  50 #define MAX_CLOCK_FREQ (204000000)
  51 #else
  52 #define MAX_CLOCK_FREQ (180000000)
  53 #endif
  54
  55 #if defined(__FPU_PRESENT) && __FPU_PRESENT == 1
  56   /* FPU declarations */
  57   #define LPC_CPACR               0xE000ED88
  58
  59   #define SCB_MVFR0           0xE000EF40
  60   #define SCB_MVFR0_RESET     0x10110021
  61
  62   #define SCB_MVFR1           0xE000EF44
  63   #define SCB_MVFR1_RESET     0x11000011
  64
  65   #if defined(__ARMCC_VERSION)
  66     void fpuInit(void) __attribute__ ((section("BOOTSTRAP_CODE")));
  67   #else
  68     extern void fpuInit(void);
  69   #endif
  70 #endif
  71
  72 extern uint32_t SystemCoreClock;     /*!< System Clock Frequency (Core Clock)  */
  73
  74 /**
  75  * Initialize the system
  76  *
  77  * @param  none
  78  * @return none
  79  *
  80  * @brief  Setup the microcontroller system.
  81  *         Initialize the System and update the SystemCoreClock variable.
  82  */
  83 extern void SystemInit (void);
  84 extern void SystemCoreClockUpdate(void);
  85
  86 #ifdef __cplusplus
  87 }
  88 #endif
  89
  90 #endif /* __SYSTEM_LPC43XX_H */