1 /* 2 ** ################################################################### 3 ** Processors: LPC5534JBD100 4 ** LPC5534JBD64 5 ** LPC5534JHI48 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: LPC55S3x Reference Manual Rev. DraftG, 07/2021 13 ** Version: rev. 1.1, 2021-08-04 14 ** Build: b230601 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 2016-2023 NXP 23 ** SPDX-License-Identifier: BSD-3-Clause 24 ** 25 ** http: www.nxp.com 26 ** mail: support@nxp.com 27 ** 28 ** Revisions: 29 ** - rev. 1.0 (2021-04-12) 30 ** Initial version based on RM DraftF 31 ** - rev. 1.1 (2021-08-04) 32 ** Initial version based on RM DraftG 33 ** 34 ** ################################################################### 35 */ 36 37 /*! 38 * @file LPC5534 39 * @version 1.1 40 * @date 2021-08-04 41 * @brief Device specific configuration file for LPC5534 (header file) 42 * 43 * Provides a system configuration function and a global variable that contains 44 * the system frequency. It configures the device and initializes the oscillator 45 * (PLL) that is part of the microcontroller device. 46 */ 47 48 #ifndef _SYSTEM_LPC5534_H_ 49 #define _SYSTEM_LPC5534_H_ /**< Symbol preventing repeated inclusion */ 50 51 #ifdef __cplusplus 52 extern "C" { 53 #endif 54 55 #include <stdint.h> 56 57 #define DEFAULT_SYSTEM_CLOCK 12000000u /* Default System clock value */ 58 #define CLK_RTC_32K_CLK 32768u /* RTC oscillator 32 kHz output (32k_clk */ 59 #define CLK_FRO_12MHZ 12000000u /* FRO 12 MHz (fro_12m) */ 60 #define CLK_FRO_48MHZ 48000000u /* FRO 48 MHz (fro_48m) */ 61 #define CLK_FRO_96MHZ 96000000u /* FRO 96 MHz (fro_96m) */ 62 #define CLK_CLK_IN 16000000u /* Default CLK_IN pin clock */ 63 64 65 /** 66 * @brief System clock frequency (core clock) 67 * 68 * The system clock frequency supplied to the SysTick timer and the processor 69 * core clock. This variable can be used by the user application to setup the 70 * SysTick timer or configure other parameters. It may also be used by debugger to 71 * query the frequency of the debug timer or configure the trace clock speed 72 * SystemCoreClock is initialized with a correct predefined value. 73 */ 74 extern uint32_t SystemCoreClock; 75 76 /** 77 * @brief Setup the microcontroller system. 78 * 79 * Typically this function configures the oscillator (PLL) that is part of the 80 * microcontroller device. For systems with variable clock speed it also updates 81 * the variable SystemCoreClock. SystemInit is called from startup_device file. 82 */ 83 void SystemInit (void); 84 85 /** 86 * @brief Updates the SystemCoreClock variable. 87 * 88 * It must be called whenever the core clock is changed during program 89 * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates 90 * the current core clock. 91 */ 92 void SystemCoreClockUpdate (void); 93 94 /** 95 * @brief SystemInit function hook. 96 * 97 * This weak function allows to call specific initialization code during the 98 * SystemInit() execution.This can be used when an application specific code needs 99 * to be called as close to the reset entry as possible (for example the Multicore 100 * Manager MCMGR_EarlyInit() function call). 101 * NOTE: No global r/w variables can be used in this hook function because the 102 * initialization of these variables happens after this function. 103 */ 104 void SystemInitHook (void); 105 106 #ifdef __cplusplus 107 } 108 #endif 109 110 #endif /* _SYSTEM_LPC5534_H_ */ 111
