1 /* 2 ** ################################################################### 3 ** Processors: LPC54607J256BD208 4 ** LPC54607J256ET180 5 ** LPC54607J512ET180 6 ** 7 ** Compilers: GNU C Compiler 8 ** IAR ANSI C/C++ Compiler for ARM 9 ** Keil ARM C/C++ Compiler 10 ** MCUXpresso Compiler 11 ** 12 ** Reference manual: LPC546xx User manual Rev.1.9 5 June 2017 13 ** Version: rev. 1.2, 2017-06-08 14 ** Build: b200304 15 ** 16 ** Abstract: 17 ** Provides a system configuration function and a global variable that 18 ** contains the system frequency. It configures the device and initializes 19 ** the oscillator (PLL) that is part of the microcontroller device. 20 ** 21 ** Copyright 2016 Freescale Semiconductor, Inc. 22 ** Copyright 2016-2020 NXP 23 ** All rights reserved. 24 ** 25 ** SPDX-License-Identifier: BSD-3-Clause 26 ** 27 ** http: www.nxp.com 28 ** mail: support@nxp.com 29 ** 30 ** Revisions: 31 ** - rev. 1.0 (2016-08-12) 32 ** Initial version. 33 ** - rev. 1.1 (2016-11-25) 34 ** Update CANFD and Classic CAN register. 35 ** Add MAC TIMERSTAMP registers. 36 ** - rev. 1.2 (2017-06-08) 37 ** Remove RTC_CTRL_RTC_OSC_BYPASS. 38 ** SYSCON_ARMTRCLKDIV rename to SYSCON_ARMTRACECLKDIV. 39 ** Remove RESET and HALT from SYSCON_AHBCLKDIV. 40 ** 41 ** ################################################################### 42 */ 43 44 /*! 45 * @file LPC54607 46 * @version 1.2 47 * @date 2017-06-08 48 * @brief Device specific configuration file for LPC54607 (header file) 49 * 50 * Provides a system configuration function and a global variable that contains 51 * the system frequency. It configures the device and initializes the oscillator 52 * (PLL) that is part of the microcontroller device. 53 */ 54 55 #ifndef _SYSTEM_LPC54607_H_ 56 #define _SYSTEM_LPC54607_H_ /**< Symbol preventing repeated inclusion */ 57 58 #ifdef __cplusplus 59 extern "C" { 60 #endif 61 62 #include <stdint.h> 63 64 #define DEFAULT_SYSTEM_CLOCK 12000000u /* Default System clock value */ 65 #define CLK_RTC_32K_CLK 32768u /* RTC oscillator 32 kHz output (32k_clk */ 66 #define CLK_FRO_12MHZ 12000000u /* FRO 12 MHz (fro_12m) */ 67 #define CLK_FRO_48MHZ 48000000u /* FRO 48 MHz (fro_48m) */ 68 #define CLK_FRO_96MHZ 96000000u /* FRO 96 MHz (fro_96m) */ 69 #define CLK_CLK_IN 0u /* Default CLK_IN pin clock */ 70 71 72 /** 73 * @brief System clock frequency (core clock) 74 * 75 * The system clock frequency supplied to the SysTick timer and the processor 76 * core clock. This variable can be used by the user application to setup the 77 * SysTick timer or configure other parameters. It may also be used by debugger to 78 * query the frequency of the debug timer or configure the trace clock speed 79 * SystemCoreClock is initialized with a correct predefined value. 80 */ 81 extern uint32_t SystemCoreClock; 82 83 /** 84 * @brief Setup the microcontroller system. 85 * 86 * Typically this function configures the oscillator (PLL) that is part of the 87 * microcontroller device. For systems with variable clock speed it also updates 88 * the variable SystemCoreClock. SystemInit is called from startup_device file. 89 */ 90 void SystemInit (void); 91 92 /** 93 * @brief Updates the SystemCoreClock variable. 94 * 95 * It must be called whenever the core clock is changed during program 96 * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates 97 * the current core clock. 98 */ 99 void SystemCoreClockUpdate (void); 100 101 /** 102 * @brief SystemInit function hook. 103 * 104 * This weak function allows to call specific initialization code during the 105 * SystemInit() execution.This can be used when an application specific code needs 106 * to be called as close to the reset entry as possible (for example the Multicore 107 * Manager MCMGR_EarlyInit() function call). 108 * NOTE: No global r/w variables can be used in this hook function because the 109 * initialization of these variables happens after this function. 110 */ 111 void SystemInitHook (void); 112 113 #ifdef __cplusplus 114 } 115 #endif 116 117 #endif /* _SYSTEM_LPC54607_H_ */ 118
