1 /** 2 * @file system_max32662.h 3 * @brief System-specific header file 4 */ 5 6 /****************************************************************************** 7 * 8 * Copyright (C) 2022-2023 Maxim Integrated Products, Inc. (now owned by 9 * Analog Devices, Inc.), 10 * Copyright (C) 2023-2024 Analog Devices, Inc. 11 * 12 * Licensed under the Apache License, Version 2.0 (the "License"); 13 * you may not use this file except in compliance with the License. 14 * You may obtain a copy of the License at 15 * 16 * http://www.apache.org/licenses/LICENSE-2.0 17 * 18 * Unless required by applicable law or agreed to in writing, software 19 * distributed under the License is distributed on an "AS IS" BASIS, 20 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 21 * See the License for the specific language governing permissions and 22 * limitations under the License. 23 * 24 ******************************************************************************/ 25 26 #ifndef LIBRARIES_CMSIS_DEVICE_MAXIM_MAX32662_INCLUDE_SYSTEM_MAX32662_H_ 27 #define LIBRARIES_CMSIS_DEVICE_MAXIM_MAX32662_INCLUDE_SYSTEM_MAX32662_H_ 28 29 #ifdef __cplusplus 30 extern "C" { 31 #endif 32 33 #include <stdint.h> 34 35 /*---------------------------------------------------------------------------- 36 Define clocks 37 *----------------------------------------------------------------------------*/ 38 39 /* This define is included to prevent build errors in existing code. 40 New code should update HF_EXTCLK_FREQ to match the frequency of the external clock. */ 41 #ifndef EXTCLK_FREQ 42 #define EXTCLK_FREQ 75000000 43 #endif 44 45 /* NOTE: HF_EXTCLK_FREQ needs to be defined by user based on the clock they supply */ 46 #ifndef HF_EXTCLK_FREQ 47 #define HF_EXTCLK_FREQ EXTCLK_FREQ 48 #endif 49 50 /* NOTE: LP_EXTCLK_FREQ needs to be defined by user based on the clock they supply */ 51 #ifndef LP_EXTCLK_FREQ 52 #define LP_EXTCLK_FREQ 12500000 53 #endif 54 55 /* NOTE: This is the nominal value for INRO. The actual value may vary from chip to chip. 56 Update if use of this oscillator requires precise timing.*/ 57 /* NOTE: INRO was previously named NANORING */ 58 #ifndef INRO_FREQ 59 #define INRO_FREQ 80000 60 #endif 61 62 #ifndef IPO_FREQ 63 #define IPO_FREQ 100000000 64 #endif 65 66 #ifndef ERFO_FREQ 67 #define ERFO_FREQ 24576000 68 #endif 69 70 #ifndef IBRO_FREQ 71 #define IBRO_FREQ 7372800 72 #endif 73 74 #ifndef ERTCO_FREQ 75 #define ERTCO_FREQ 32768 76 #endif 77 78 #ifndef HIRC_FREQ 79 #define HIRC_FREQ IPO_FREQ 80 #endif 81 82 #ifndef HFX_FREQ 83 #define HFX_FREQ 32768 84 #endif 85 86 /* NOTE: This is the nominal value for NANORING. The actual value may vary from chip to chip. 87 Update if use of this oscillator requires precise timing.*/ 88 #ifndef NANORING_FREQ 89 #define NANORING_FREQ 8000 90 #endif 91 92 #ifndef HIRC96_FREQ 93 #define HIRC96_FREQ 96000000 94 #endif 95 96 extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */ 97 #ifndef PeripheralClock 98 #define PeripheralClock (SystemCoreClock / 2) /*!< Peripheral Clock Frequency */ 99 #endif 100 101 /* 102 * Initialize the system 103 * 104 * @brief Setup the microcontroller system. 105 * Initialize the System and update the SystemCoreClock variable. 106 */ 107 void SystemInit(void); 108 109 /* 110 * Update SystemCoreClock variable 111 * 112 * @brief Updates the SystemCoreClock with current core Clock 113 * retrieved from cpu registers. 114 */ 115 void SystemCoreClockUpdate(void); 116 117 #ifdef __cplusplus 118 } 119 #endif 120 121 #endif // LIBRARIES_CMSIS_DEVICE_MAXIM_MAX32662_INCLUDE_SYSTEM_MAX32662_H_ 122
