1 /****************************************************************************** 2 * 3 * Copyright (C) 2022-2023 Maxim Integrated Products, Inc. (now owned by 4 * Analog Devices, Inc.), 5 * Copyright (C) 2023-2024 Analog Devices, Inc. 6 * 7 * Licensed under the Apache License, Version 2.0 (the "License"); 8 * you may not use this file except in compliance with the License. 9 * You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, software 14 * distributed under the License is distributed on an "AS IS" BASIS, 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 * See the License for the specific language governing permissions and 17 * limitations under the License. 18 * 19 ******************************************************************************/ 20 21 #ifndef LIBRARIES_CMSIS_DEVICE_MAXIM_MAX32675_INCLUDE_SYSTEM_MAX32675_H_ 22 #define LIBRARIES_CMSIS_DEVICE_MAXIM_MAX32675_INCLUDE_SYSTEM_MAX32675_H_ 23 24 #ifdef __cplusplus 25 extern "C" { 26 #endif 27 28 #include <stdint.h> 29 30 /*---------------------------------------------------------------------------- 31 Define clocks 32 *----------------------------------------------------------------------------*/ 33 34 /* NOTE: HIRC was previously named CRYPTO */ 35 #ifdef CRYPTO_FREQ 36 #warning WARNING: CRYPTO_FREQ does not exist in MAX32675, replace with HIRC_FREQ! 37 #define HIRC_FREQ CRYPTO_FREQ 38 #endif 39 40 /* NOTE: EXTCLK needs to be defined by user based on the clock they supply */ 41 #ifndef EXTCLK_FREQ 42 #define EXTCLK_FREQ 75000000 43 #endif 44 45 /* NOTE: This is the nominal value for INRO. The actual value may vary from chip to chip. 46 Update if use of this oscillator requires precise timing.*/ 47 /* NOTE: INRO was previously named NANORING */ 48 #ifndef INRO_FREQ 49 #define INRO_FREQ 80000 50 #endif 51 52 //NOTE: IPO clock bit is documented as 96MHz, but SR says this will be 100. 53 #ifndef IPO_FREQ 54 #define IPO_FREQ 100000000 55 #endif 56 57 #ifndef IBRO_FREQ 58 #define IBRO_FREQ 7372800 59 #endif 60 61 /* NOTE: ERFO_FREQ (16MHz-32MHz) needs to be defined by user based on the clock they supply */ 62 #ifndef ERFO_FREQ 63 #define ERFO_FREQ 16000000 64 #endif 65 66 #ifndef ERTCO_FREQ 67 #define ERTCO_FREQ 32768 68 #endif 69 70 #ifndef HIRC_FREQ 71 #define HIRC_FREQ IPO_FREQ 72 #endif 73 74 extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */ 75 #ifdef PeripheralClock 76 #warning PeripheralClock define is being overidden. 77 #else 78 #define PeripheralClock (SystemCoreClock / 2) /*!< Peripheral Clock Frequency */ 79 #endif 80 81 /* 82 * Initialize the system 83 * 84 * @brief Setup the microcontroller system. 85 * Initialize the System and update the SystemCoreClock variable. 86 */ 87 void SystemInit(void); 88 89 /* 90 * Update SystemCoreClock variable 91 * 92 * @brief Updates the SystemCoreClock with current core Clock 93 * retrieved from cpu registers. 94 */ 95 void SystemCoreClockUpdate(void); 96 97 #ifdef __cplusplus 98 } 99 #endif 100 101 #endif // LIBRARIES_CMSIS_DEVICE_MAXIM_MAX32675_INCLUDE_SYSTEM_MAX32675_H_ 102
