cpu.h File Reference

Basic definitions for the Cortex-M common module. More...

Detailed Description

Basic definitions for the Cortex-M common module.

When ever you want to do something hardware related, that is accessing MCUs registers, just include this file. It will then make sure that the MCU specific headers are included.

Author

Stefan Pfeiffer stefa.nosp@m.n.pf.nosp@m.eiffe.nosp@m.r@fu.nosp@m.-berl.nosp@m.in.d.nosp@m.e

Hauke Petersen hauke.nosp@m..pet.nosp@m.ersen.nosp@m.@fu-.nosp@m.berli.nosp@m.n.de

Joakim Nohlgård joaki.nosp@m.m.no.nosp@m.hlgar.nosp@m.d@ei.nosp@m.stec..nosp@m.se

Todo:

remove include irq.h once core was adjusted

Definition in file cpu.h.

#include <stdio.h>
#include "irq.h"
#include "sched.h"
#include "thread.h"
#include "cpu_conf.h"

Include dependency graph for cpu.h:

Go to the source code of this file.

Macros
#define	STACK_CANARY_WORD   (0xE7FEE7FEu)
	Interrupt stack canary value.
#define	PROVIDES_PM_SET_LOWEST
	All Cortex-m-based CPUs provide pm_set_lowest.
#define	CORTEXM_SCB_CPACR_FPU_ACCESS_FULL   (0x00f00000)
	Pattern to write into the co-processor Access Control Register to allow full FPU access.

Functions
void	cortexm_init (void)
	Initialize Cortex-M specific core parts of the CPU.
static void	cortexm_init_fpu (void)
	Initialize Cortex-M FPU.
void	cortexm_init_isr_priorities (void)
	Initialize Cortex-M interrupt priorities.
void	cortexm_init_misc (void)
	Initialize Cortex-M misc functions.
static uintptr_t	cpu_get_caller_pc (void)
	Returns the current content of the link register (lr)
static void	cortexm_sleep_until_event (void)
	Put the CPU into the 'wait for event' sleep mode.
static void	cortexm_sleep (int deep)
	Put the CPU into (deep) sleep mode, using the WFI instruction.
static void	cortexm_isr_end (void)
	Trigger a conditional context scheduler run / context switch.
static void	cpu_jump_to_image (uint32_t image_address)
	Jumps to another image in flash.
bool	cpu_check_address (volatile const char *address)
	Checks is memory address valid or not.