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de7bad9245
2、【创建】Eclipse工程，并支持IAR插件调试 3、【创建】Keil工程，位于/RVMDK目录下 4、【创建】IAR工程，位于/EWARM目录下 5、【添加】RT-Thread1.1.1操作系统支持 6、【添加】LED1、LED2系统运行指示灯 7、【修改】Readdme.md文件 Signed-off-by: armink <armink.ztl@gmail.com>
60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/*
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* File : stack.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2006, RT-Thread Development Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://openlab.rt-thread.com/license/LICENSE
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*
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* Change Logs:
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* Date Author Notes
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* 2006-03-13 Bernard the first version
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*/
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#include <rtthread.h>
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#include <sep4020.h>
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/**
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* @addtogroup S3C24X0
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*/
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/*@{*/
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/**
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* This function will initialize thread stack
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*
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* @param tentry the entry of thread
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* @param parameter the parameter of entry
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* @param stack_addr the beginning stack address
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* @param texit the function will be called when thread exit
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*
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* @return stack address
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*/
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rt_uint8_t *rt_hw_stack_init(void *tentry, void *parameter,
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rt_uint8_t *stack_addr, void *texit)
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{
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rt_uint32_t *stk;
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stk = (rt_uint32_t*)stack_addr;
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*(stk) = (rt_uint32_t)tentry; /* entry point */
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*(--stk) = (rt_uint32_t)texit; /* lr */
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*(--stk) = 0; /* r12 */
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*(--stk) = 0; /* r11 */
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*(--stk) = 0; /* r10 */
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*(--stk) = 0; /* r9 */
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*(--stk) = 0; /* r8 */
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*(--stk) = 0; /* r7 */
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*(--stk) = 0; /* r6 */
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*(--stk) = 0; /* r5 */
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*(--stk) = 0; /* r4 */
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*(--stk) = 0; /* r3 */
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*(--stk) = 0; /* r2 */
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*(--stk) = 0; /* r1 */
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*(--stk) = (rt_uint32_t)parameter; /* r0 : argument */
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*(--stk) = Mode_SVC; /* cpsr */
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*(--stk) = Mode_SVC; /* spsr */
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/* return task's current stack address */
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return (rt_uint8_t *)stk;
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}
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/*@}*/
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