forked from xuos/xiuos
192 lines
5.7 KiB
C
192 lines
5.7 KiB
C
/*
|
|
** ###################################################################
|
|
** Processors: RV32M1_ri5cy
|
|
** RV32M1_ri5cy
|
|
**
|
|
** Compilers: Keil ARM C/C++ Compiler
|
|
** GNU C Compiler
|
|
** IAR ANSI C/C++ Compiler for ARM
|
|
** MCUXpresso Compiler
|
|
**
|
|
** Reference manual: RV32M1 Series Reference Manual, Rev. 1 , 8/10/2018
|
|
** Version: rev. 1.0, 2018-10-02
|
|
** Build: b180926
|
|
**
|
|
** Abstract:
|
|
** Provides a system configuration function and a global variable that
|
|
** contains the system frequency. It configures the device and initializes
|
|
** the oscillator (PLL) that is part of the microcontroller device.
|
|
**
|
|
** Copyright 2016 Freescale Semiconductor, Inc.
|
|
** Copyright 2016-2018 NXP
|
|
** All rights reserved.
|
|
**
|
|
** SPDX-License-Identifier: BSD-3-Clause
|
|
**
|
|
** http: www.nxp.com
|
|
** mail: support@nxp.com
|
|
**
|
|
** Revisions:
|
|
** - rev. 1.0 (2018-10-02)
|
|
** Initial version.
|
|
**
|
|
** ###################################################################
|
|
*/
|
|
|
|
/*!
|
|
* @file RV32M1_ri5cy
|
|
* @version 1.0
|
|
* @date 2018-10-02
|
|
* @brief Device specific configuration file for RV32M1_ri5cy (header file)
|
|
*
|
|
* Provides a system configuration function and a global variable that contains
|
|
* the system frequency. It configures the device and initializes the oscillator
|
|
* (PLL) that is part of the microcontroller device.
|
|
*/
|
|
/*************************************************
|
|
File name: RV32M1_ri5cy
|
|
Description:
|
|
Others: take for references
|
|
https://github.com/open-isa-org/open-isa.org
|
|
History:
|
|
1. Date: 2022-02-16
|
|
Author: AIIT XUOS Lab
|
|
Modification:
|
|
*************************************************/
|
|
#ifndef _SYSTEM_RV32M1_ri5cy_H_
|
|
#define _SYSTEM_RV32M1_ri5cy_H_ /**< Symbol preventing repeated inclusion */
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
|
|
|
|
#ifndef DISABLE_WDOG
|
|
#define DISABLE_WDOG 1
|
|
#endif
|
|
|
|
/* Define clock source values */
|
|
#define CPU_XTAL_CLK_HZ 8000000u /* Value of the external crystal or oscillator clock frequency in Hz */
|
|
|
|
/* Low power mode enable */
|
|
/* SMC_PMPROT: AHSRUN=1, AVLP=1,ALLS=1,AVLLS=0x3 */
|
|
#define SYSTEM_SMC_PMPROT_VALUE 0xABu /* SMC_PMPROT */
|
|
#define SYSTEM_SMC_PMCTRL_VALUE 0x0u /* SMC_PMCTRL */
|
|
|
|
#define DEFAULT_SYSTEM_CLOCK 48000000u /* Default System clock value */
|
|
|
|
|
|
|
|
/**
|
|
* @brief System clock frequency (core clock)
|
|
*
|
|
* The system clock frequency supplied to the SysTick timer and the processor
|
|
* core clock. This variable can be used by the user application to setup the
|
|
* SysTick timer or configure other parameters. It may also be used by debugger to
|
|
* query the frequency of the debug timer or configure the trace clock speed
|
|
* SystemCoreClock is initialized with a correct predefined value.
|
|
*/
|
|
extern uint32_t SystemCoreClock;
|
|
|
|
/**
|
|
* @brief Setup the microcontroller system.
|
|
*
|
|
* Typically this function configures the oscillator (PLL) that is part of the
|
|
* microcontroller device. For systems with variable clock speed it also updates
|
|
* the variable SystemCoreClock. SystemInit is called from startup_device file.
|
|
*/
|
|
void SystemInit (void);
|
|
|
|
/**
|
|
* @brief Updates the SystemCoreClock variable.
|
|
*
|
|
* It must be called whenever the core clock is changed during program
|
|
* execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates
|
|
* the current core clock.
|
|
*/
|
|
void SystemCoreClockUpdate (void);
|
|
|
|
/**
|
|
* @brief SystemInit function hook.
|
|
*
|
|
* This weak function allows to call specific initialization code during the
|
|
* SystemInit() execution.This can be used when an application specific code needs
|
|
* to be called as close to the reset entry as possible (for example the Multicore
|
|
* Manager MCMGR_EarlyInit() function call).
|
|
* NOTE: No global r/w variables can be used in this hook function because the
|
|
* initialization of these variables happens after this function.
|
|
*/
|
|
void SystemInitHook (void);
|
|
|
|
/**
|
|
* @brief System IRQ handler which dispatches specific IRQ to corresponding registered handler.
|
|
*
|
|
* It is called from IRQ exception context and dispatches to registered handler according to
|
|
* MCAUSE interrupt number.
|
|
*
|
|
* @param mcause IRQ acknowledge value read from MCAUSE
|
|
*/
|
|
void SystemIrqHandler(uint32_t mcause);
|
|
|
|
/**
|
|
* @brief Get IRQ nesting level of current context.
|
|
*
|
|
* If the return value is 0, then the context is not ISR, otherwise the context is ISR.
|
|
*
|
|
* @return IRQ nesting level
|
|
*/
|
|
uint32_t SystemGetIRQNestingLevel (void);
|
|
|
|
/**
|
|
* @brief Setup systick for RTOS system.
|
|
*
|
|
* @param tickRateHz Tick number per second
|
|
* @param intPriority IRQ interrupt priority (the smaller, the higher priority)
|
|
*/
|
|
void SystemSetupSystick (uint32_t tickRateHz, uint32_t intPriority);
|
|
|
|
/**
|
|
* @brief Clear systick flag status so that next tick interrupt may occur.
|
|
*/
|
|
void SystemClearSystickFlag (void);
|
|
|
|
/**
|
|
* @brief Sysem is in ISR or not.
|
|
*/
|
|
bool SystemInISR(void);
|
|
|
|
#define SysTick_Handler LPIT0_IRQHandler
|
|
|
|
/**
|
|
* @brief Set interrupt priority in Event unit.
|
|
*/
|
|
void EVENT_SetIRQPriority(IRQn_Type IRQn, uint8_t intPriority);
|
|
|
|
/**
|
|
* @brief Get interrupt priority in Event unit.
|
|
*/
|
|
uint8_t EVENT_GetIRQPriority(IRQn_Type IRQn);
|
|
|
|
/**
|
|
* @brief Reset the system.
|
|
*/
|
|
void EVENT_SystemReset(void);
|
|
|
|
#define NVIC_SystemReset EVENT_SystemReset
|
|
|
|
/* Priority setting macro remap. */
|
|
#define NVIC_SetPriority EVENT_SetIRQPriority
|
|
|
|
/* Priority getting macro remap. */
|
|
#define NVIC_GetPriority EVENT_GetIRQPriority
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _SYSTEM_RV32M1_ri5cy_H_ */
|