82 lines
3.5 KiB
C
82 lines
3.5 KiB
C
/**
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*******************************************************************************
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* @file OsArch.h
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* @version V1.1.6
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* @date 2014.05.23
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* @brief Implement function declare related to Cortex-M3(ARM-v7)
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* @details This header file including functions or defines related to
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* Cortex-M3(ARM-v7).
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*******************************************************************************
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* @copy
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the <ORGANIZATION> nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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* <h2><center>© COPYRIGHT 2014 CooCox </center></h2>
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*******************************************************************************
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*/
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#ifndef _CPU_H
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#define _CPU_H
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#define NVIC_ST_CTRL (*((volatile U32 *)0xE000E010))
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#define NVIC_ST_RELOAD (*((volatile U32 *)0xE000E014))
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#define RELOAD_VAL ((U32)(( (U32)CFG_CPU_FREQ) / (U32)CFG_SYSTICK_FREQ) -1)
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/*!< Initial System tick. */
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// Maple
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#define InitSysTick() systick_attach_callback(&CoSysTick_Handler)
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/* Maple
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#define InitSysTick() NVIC_ST_RELOAD = RELOAD_VAL; \
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NVIC_ST_CTRL = 0x0007
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*/
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#define NVIC_SYS_PRI2 (*((volatile U32 *)0xE000ED1C))
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#define NVIC_SYS_PRI3 (*((volatile U32 *)0xE000ED20))
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/*!< Initialize PendSV,SVC and SysTick interrupt priority to lowest. */
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#define InitInt() NVIC_SYS_PRI2 |= 0xFF000000;\
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NVIC_SYS_PRI3 |= 0xFFFF0000
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/*---------------------------- Variable declare ------------------------------*/
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extern U64 OSTickCnt; /*!< Counter for current system ticks. */
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/*!< Initial context of task being created */
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extern OS_STK *InitTaskContext(FUNCPtr task,void *param,OS_STK *pstk);
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extern void SwitchContext(void); /*!< Switch context */
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extern void SetEnvironment(OS_STK *pstk);/*!< Set environment for run */
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extern U8 Inc8 (volatile U8 *data);
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extern U8 Dec8 (volatile U8 *data);
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extern void IRQ_ENABLE_RESTORE(void);
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extern void IRQ_DISABLE_SAVE(void);
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extern void CoSysTick_Handler(void);
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#endif /* _CPU_H */
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