1 /* 2 ** ################################################################### 3 ** Processors: LPC54616J256ET180 4 ** LPC54616J512BD100 5 ** LPC54616J512BD208 6 ** LPC54616J512ET100 7 ** 8 ** Compilers: GNU C Compiler 9 ** IAR ANSI C/C++ Compiler for ARM 10 ** Keil ARM C/C++ Compiler 11 ** MCUXpresso Compiler 12 ** 13 ** Reference manual: LPC546xx User manual Rev.1.9 5 June 2017 14 ** Version: rev. 1.2, 2017-06-08 15 ** Build: b200304 16 ** 17 ** Abstract: 18 ** Provides a system configuration function and a global variable that 19 ** contains the system frequency. It configures the device and initializes 20 ** the oscillator (PLL) that is part of the microcontroller device. 21 ** 22 ** Copyright 2016 Freescale Semiconductor, Inc. 23 ** Copyright 2016-2020 NXP 24 ** All rights reserved. 25 ** 26 ** SPDX-License-Identifier: BSD-3-Clause 27 ** 28 ** http: www.nxp.com 29 ** mail: support@nxp.com 30 ** 31 ** Revisions: 32 ** - rev. 1.0 (2016-08-12) 33 ** Initial version. 34 ** - rev. 1.1 (2016-11-25) 35 ** Update CANFD and Classic CAN register. 36 ** Add MAC TIMERSTAMP registers. 37 ** - rev. 1.2 (2017-06-08) 38 ** Remove RTC_CTRL_RTC_OSC_BYPASS. 39 ** SYSCON_ARMTRCLKDIV rename to SYSCON_ARMTRACECLKDIV. 40 ** Remove RESET and HALT from SYSCON_AHBCLKDIV. 41 ** 42 ** ################################################################### 43 */ 44 45 /*! 46 * @file LPC54616 47 * @version 1.2 48 * @date 2017-06-08 49 * @brief Device specific configuration file for LPC54616 (header file) 50 * 51 * Provides a system configuration function and a global variable that contains 52 * the system frequency. It configures the device and initializes the oscillator 53 * (PLL) that is part of the microcontroller device. 54 */ 55 56 #ifndef _SYSTEM_LPC54616_H_ 57 #define _SYSTEM_LPC54616_H_ /**< Symbol preventing repeated inclusion */ 58 59 #ifdef __cplusplus 60 extern "C" { 61 #endif 62 63 #include <stdint.h> 64 65 #define DEFAULT_SYSTEM_CLOCK 12000000u /* Default System clock value */ 66 #define CLK_RTC_32K_CLK 32768u /* RTC oscillator 32 kHz output (32k_clk */ 67 #define CLK_FRO_12MHZ 12000000u /* FRO 12 MHz (fro_12m) */ 68 #define CLK_FRO_48MHZ 48000000u /* FRO 48 MHz (fro_48m) */ 69 #define CLK_FRO_96MHZ 96000000u /* FRO 96 MHz (fro_96m) */ 70 #define CLK_CLK_IN 0u /* Default CLK_IN pin clock */ 71 72 73 /** 74 * @brief System clock frequency (core clock) 75 * 76 * The system clock frequency supplied to the SysTick timer and the processor 77 * core clock. This variable can be used by the user application to setup the 78 * SysTick timer or configure other parameters. It may also be used by debugger to 79 * query the frequency of the debug timer or configure the trace clock speed 80 * SystemCoreClock is initialized with a correct predefined value. 81 */ 82 extern uint32_t SystemCoreClock; 83 84 /** 85 * @brief Setup the microcontroller system. 86 * 87 * Typically this function configures the oscillator (PLL) that is part of the 88 * microcontroller device. For systems with variable clock speed it also updates 89 * the variable SystemCoreClock. SystemInit is called from startup_device file. 90 */ 91 void SystemInit (void); 92 93 /** 94 * @brief Updates the SystemCoreClock variable. 95 * 96 * It must be called whenever the core clock is changed during program 97 * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates 98 * the current core clock. 99 */ 100 void SystemCoreClockUpdate (void); 101 102 /** 103 * @brief SystemInit function hook. 104 * 105 * This weak function allows to call specific initialization code during the 106 * SystemInit() execution.This can be used when an application specific code needs 107 * to be called as close to the reset entry as possible (for example the Multicore 108 * Manager MCMGR_EarlyInit() function call). 109 * NOTE: No global r/w variables can be used in this hook function because the 110 * initialization of these variables happens after this function. 111 */ 112 void SystemInitHook (void); 113 114 #ifdef __cplusplus 115 } 116 #endif 117 118 #endif /* _SYSTEM_LPC54616_H_ */ 119
