cpu.h
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/*
* Copyright (C) 2013, Freie Universitaet Berlin (FUB). All rights reserved.
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
#ifndef CPU_H
#define CPU_H
/**
* @defgroup lpc2387 NXP LPC2387
* @ingroup cpu
* @brief NXP LPC2387 specific code
* @{
*/
#include <stdio.h>
#include <stdbool.h>
#include "lpc2387.h"
#include "arm_cpu.h"
#ifdef __cplusplus
extern "C" {
#endif
extern uintptr_t __stack_start; ///< end of user stack memory space
/**
* @brief Scale lpc2387 cpu speed
*/
void lpc2387_pclk_scale(uint32_t source, uint32_t target, uint32_t *pclksel, uint32_t *prescale);
/**
* @brief install lpc2387 irq
*/
bool install_irq(int IntNumber, void (*HandlerAddr)(void), int Priority);
#ifdef MODULE_PERIPH
void gpio_init_ports(void);
#endif
/**
* @brief Prints the current content of the link register (lr)
*/
static inline void cpu_print_last_instruction(void)
{
register uint32_t *lr_ptr;
__asm__ __volatile__("mov %0, lr" : "=r"(lr_ptr));
printf("%p\n", (void*) lr_ptr);
}
#ifdef __cplusplus
}
#endif
/** @} */
#endif /* CPU_H */