2 ** ###################################################################
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3 ** Processors: LPC55S69JBD100_cm33_core0
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4 ** LPC55S69JET98_cm33_core0
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6 ** Compilers: GNU C Compiler
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7 ** IAR ANSI C/C++ Compiler for ARM
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8 ** Keil ARM C/C++ Compiler
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9 ** MCUXpresso Compiler
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11 ** Reference manual: LPC55xx/LPC55Sxx User manual Rev.0.4 25 Sep 2018
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12 ** Version: rev. 1.0, 2018-08-22
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16 ** Provides a system configuration function and a global variable that
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17 ** contains the system frequency. It configures the device and initializes
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18 ** the oscillator (PLL) that is part of the microcontroller device.
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20 ** Copyright 2016 Freescale Semiconductor, Inc.
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21 ** Copyright 2016-2018 NXP
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22 ** All rights reserved.
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24 ** SPDX-License-Identifier: BSD-3-Clause
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26 ** http: www.nxp.com
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27 ** mail: support@nxp.com
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30 ** - rev. 1.0 (2018-08-22)
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31 ** Initial version based on v0.2UM
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33 ** ###################################################################
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37 * @file LPC55S69_cm33_core0
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40 * @brief Device specific configuration file for LPC55S69_cm33_core0 (header
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43 * Provides a system configuration function and a global variable that contains
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44 * the system frequency. It configures the device and initializes the oscillator
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45 * (PLL) that is part of the microcontroller device.
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48 #ifndef _SYSTEM_LPC55S69_cm33_core0_H_
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49 #define _SYSTEM_LPC55S69_cm33_core0_H_ /**< Symbol preventing repeated inclusion */
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57 #define DEFAULT_SYSTEM_CLOCK 12000000u /* Default System clock value */
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58 #define CLK_RTC_32K_CLK 32768u /* RTC oscillator 32 kHz output (32k_clk */
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59 #define CLK_FRO_12MHZ 12000000u /* FRO 12 MHz (fro_12m) */
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60 #define CLK_FRO_48MHZ 48000000u /* FRO 48 MHz (fro_48m) */
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61 #define CLK_FRO_96MHZ 96000000u /* FRO 96 MHz (fro_96m) */
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62 #define CLK_CLK_IN 16000000u /* Default CLK_IN pin clock */
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66 * @brief System clock frequency (core clock)
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68 * The system clock frequency supplied to the SysTick timer and the processor
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69 * core clock. This variable can be used by the user application to setup the
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70 * SysTick timer or configure other parameters. It may also be used by debugger to
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71 * query the frequency of the debug timer or configure the trace clock speed
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72 * SystemCoreClock is initialized with a correct predefined value.
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74 extern uint32_t SystemCoreClock;
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77 * @brief Setup the microcontroller system.
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79 * Typically this function configures the oscillator (PLL) that is part of the
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80 * microcontroller device. For systems with variable clock speed it also updates
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81 * the variable SystemCoreClock. SystemInit is called from startup_device file.
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83 void SystemInit (void);
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86 * @brief Updates the SystemCoreClock variable.
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88 * It must be called whenever the core clock is changed during program
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89 * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates
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90 * the current core clock.
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92 void SystemCoreClockUpdate (void);
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95 * @brief SystemInit function hook.
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97 * This weak function allows to call specific initialization code during the
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98 * SystemInit() execution.This can be used when an application specific code needs
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99 * to be called as close to the reset entry as possible (for example the Multicore
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100 * Manager MCMGR_EarlyInit() function call).
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101 * NOTE: No global r/w variables can be used in this hook function because the
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102 * initialization of these variables happens after this function.
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104 void SystemInitHook (void);
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110 #endif /* _SYSTEM_LPC55S69_cm33_core0_H_ */
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