50 lines
1.8 KiB
C
50 lines
1.8 KiB
C
/**
|
|
*******************************************************************************
|
|
* @file cpu.h
|
|
* @version V1.12
|
|
* @date 2010.03.01
|
|
* @brief Implement function declare related to Cortex-M3(ARM-v7)
|
|
* @details This header file including functions or defines related to
|
|
* Cortex-M3(ARM-v7).
|
|
*******************************************************************************
|
|
* @copy
|
|
*
|
|
* INTERNAL FILE,DON'T PUBLIC.
|
|
*
|
|
* <h2><center>© COPYRIGHT 2009 CooCox </center></h2>
|
|
*******************************************************************************
|
|
*/
|
|
|
|
|
|
#ifndef _CPU_H
|
|
#define _CPU_H
|
|
|
|
|
|
#define NVIC_ST_CTRL (*((volatile U32 *)0xE000E010))
|
|
#define NVIC_ST_RELOAD (*((volatile U32 *)0xE000E014))
|
|
#define RELOAD_VAL ((U32)(( (U32)CFG_CPU_FREQ) / (U32)CFG_SYSTICK_FREQ) -1)
|
|
|
|
/*!< Initial System tick. */
|
|
#define InitSysTick()
|
|
// NVIC_ST_RELOAD = RELOAD_VAL; \
|
|
// NVIC_ST_CTRL = 0x0007
|
|
|
|
#define NVIC_SYS_PRI2 (*((volatile U32 *)0xE000ED1C))
|
|
#define NVIC_SYS_PRI3 (*((volatile U32 *)0xE000ED20))
|
|
|
|
/*!< Initialize PendSV,SVC and SysTick interrupt priority to lowest. */
|
|
#define InitInt() NVIC_SYS_PRI2 |= 0xFF000000;\
|
|
NVIC_SYS_PRI3 |= 0xFFFF0000
|
|
|
|
/*---------------------------- Variable declare ------------------------------*/
|
|
extern U64 OSTickCnt; /*!< Counter for current system ticks. */
|
|
|
|
/*!< Initial context of task being created */
|
|
extern OS_STK *InitTaskContext(FUNCPtr task,void *param,OS_STK *pstk);
|
|
extern void SwitchContext(void); /*!< Switch context */
|
|
extern void SetEnvironment(OS_STK *pstk);/*!< Set environment for run */
|
|
extern U8 Inc8 (U8 *data);
|
|
extern U8 Dec8 (U8 *data);
|
|
|
|
#endif
|