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add Nuvoton Cortex-M0 porting.
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@877 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong@gmail.com committed
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22 files changed
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/*---------------------------------------------------------------------------------------------------------*/
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||||
/* */
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||||
/* Copyright(c) 2009 Nuvoton Technology Corp. All rights reserved. */
|
||||
/* */
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||||
/*---------------------------------------------------------------------------------------------------------*/
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||||
#include <stdint.h>
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||||
#include "NUC1xx.h"
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||||
|
||||
/*----------------------------------------------------------------------------
|
||||
Define SYSCLK
|
||||
*----------------------------------------------------------------------------*/
|
||||
#define __HSI (50000000UL)
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||||
|
||||
/*----------------------------------------------------------------------------
|
||||
Clock Definitions
|
||||
*----------------------------------------------------------------------------*/
|
||||
uint32_t SystemFrequency = __HSI; /*!< System Clock Frequency (Core Clock) */
|
||||
|
||||
|
||||
/*---------------------------------------------------------------------------------------------------------*/
|
||||
/* Function: SystemInit */
|
||||
/* */
|
||||
/* Parameters: */
|
||||
/* None */
|
||||
/* */
|
||||
/* Returns: */
|
||||
/* None */
|
||||
/* */
|
||||
/* Description: */
|
||||
/* The necessary initializaiton of systerm. */
|
||||
/* */
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||||
/*---------------------------------------------------------------------------------------------------------*/
|
||||
void SystemInit (void)
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||||
{
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|
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}
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||||
@@ -0,0 +1,39 @@
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||||
/******************************************************************************
|
||||
* @file: system_armikmcu.h
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||||
* @purpose: CMSIS ARM Cortex-M0 Device Peripheral Access Layer Header File
|
||||
* @version: V0.01
|
||||
* @date: 17. Feb. 2009
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||||
*----------------------------------------------------------------------------
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||||
*
|
||||
* Copyright (C) 2009 ARM Limited. All rights reserved.
|
||||
*
|
||||
* ARM Limited (ARM) is supplying this software for use with Cortex-Mx
|
||||
* processor based microcontrollers. This file can be freely distributed
|
||||
* within development tools that are supporting such ARM based processors.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
|
||||
* OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
|
||||
* ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
|
||||
* CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
|
||||
*
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||||
******************************************************************************/
|
||||
|
||||
|
||||
#ifndef __SYSTEM_ARMCM0_H
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||||
#define __SYSTEM_ARMCM0_H
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extern uint32_t SystemFrequency; /*!< System Clock Frequency (Core Clock) */
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||||
|
||||
|
||||
/**
|
||||
* Initialize the system
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||||
*
|
||||
* @param none
|
||||
* @return none
|
||||
*
|
||||
* @brief Setup the microcontroller system
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||||
* Initialise GPIO directions and values
|
||||
*/
|
||||
extern void SystemInit (void);
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||||
#endif
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||||
/*
|
||||
* File : app.c
|
||||
* This file is part of RT-Thread RTOS
|
||||
* COPYRIGHT (C) 2006, RT-Thread Development Team
|
||||
*
|
||||
* The license and distribution terms for this file may be
|
||||
* found in the file LICENSE in this distribution or at
|
||||
* http://www.rt-thread.org/license/LICENSE
|
||||
*
|
||||
* Change Logs:
|
||||
* Date Author Notes
|
||||
* 2010-01-25 Bernard first version
|
||||
*/
|
||||
|
||||
/**
|
||||
* @addtogroup LPC1100
|
||||
*/
|
||||
/*@{*/
|
||||
#include <rtthread.h>
|
||||
|
||||
int rt_application_init()
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*@}*/
|
||||
@@ -0,0 +1,65 @@
|
||||
/*
|
||||
* File : board.c
|
||||
* This file is part of RT-Thread RTOS
|
||||
* COPYRIGHT (C) 2006, RT-Thread Develop Team
|
||||
*
|
||||
* The license and distribution terms for this file may be
|
||||
* found in the file LICENSE in this distribution or at
|
||||
* http://www.rt-thread.org/license/LICENSE
|
||||
*
|
||||
* Change Logs:
|
||||
* Date Author Notes
|
||||
* 2010-01-25 Bernard first version
|
||||
*/
|
||||
|
||||
#include <rtthread.h>
|
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#include <rthw.h>
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||||
|
||||
#include "board.h"
|
||||
#include "uart.h"
|
||||
|
||||
#include "CMSIS/CM0/NUC1xx.h"
|
||||
#include "CMSIS/CM0/core_cm0.h"
|
||||
|
||||
/**
|
||||
* @addtogroup NUC100
|
||||
*/
|
||||
/*@{*/
|
||||
|
||||
/**
|
||||
* This is the timer interrupt service routine.
|
||||
*/
|
||||
void rt_hw_timer_handler()
|
||||
{
|
||||
/* enter interrupt */
|
||||
rt_interrupt_enter();
|
||||
|
||||
rt_tick_increase();
|
||||
|
||||
/* leave interrupt */
|
||||
rt_interrupt_leave();
|
||||
}
|
||||
|
||||
/**
|
||||
* This function will initial sam7s64 board.
|
||||
*/
|
||||
void rt_hw_board_init()
|
||||
{
|
||||
SystemInit();
|
||||
|
||||
/* init systick */
|
||||
SysTick_Config(SystemFrequency/RT_TICK_PER_SECOND - 1);
|
||||
|
||||
/* set pend exception priority */
|
||||
NVIC_SetPriority(PendSV_IRQn, (1<<__NVIC_PRIO_BITS) - 1);
|
||||
|
||||
#ifdef RT_USING_UART
|
||||
/* init hardware UART device */
|
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rt_hw_uart_init();
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#endif
|
||||
#ifdef RT_USING_CONSOLE
|
||||
/* set console device */
|
||||
rt_console_set_device("uart1");
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||||
#endif
|
||||
}
|
||||
/*@}*/
|
||||
@@ -0,0 +1,20 @@
|
||||
/*
|
||||
* File : board.h
|
||||
* This file is part of RT-Thread RTOS
|
||||
* COPYRIGHT (C) 2006, RT-Thread Develop Team
|
||||
*
|
||||
* The license and distribution terms for this file may be
|
||||
* found in the file LICENSE in this distribution or at
|
||||
* http://www.rt-thread.org/license/LICENSE
|
||||
*
|
||||
* Change Logs:
|
||||
* Date Author Notes
|
||||
* 2010-01-25 Bernard first version
|
||||
*/
|
||||
|
||||
#ifndef __BOARD_H__
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#define __BOARD_H__
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|
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void rt_hw_board_init(void);
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||||
|
||||
#endif
|
||||
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||||
/* RT-Thread config file */
|
||||
#ifndef __RTTHREAD_CFG_H__
|
||||
#define __RTTHREAD_CFG_H__
|
||||
|
||||
/* RT_NAME_MAX*/
|
||||
#define RT_NAME_MAX 4
|
||||
|
||||
/* RT_ALIGN_SIZE*/
|
||||
#define RT_ALIGN_SIZE 4
|
||||
|
||||
/* PRIORITY_MAX*/
|
||||
#define RT_THREAD_PRIORITY_MAX 8
|
||||
|
||||
/* Tick per Second*/
|
||||
#define RT_TICK_PER_SECOND 100
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||||
|
||||
/* SECTION: RT_DEBUG */
|
||||
/* Thread Debug*/
|
||||
/* #define RT_THREAD_DEBUG */
|
||||
|
||||
/* Using Hook*/
|
||||
/* #define RT_USING_HOOK */
|
||||
|
||||
/* SECTION: IPC */
|
||||
/* Using Semaphore*/
|
||||
#define RT_USING_SEMAPHORE
|
||||
|
||||
/* Using Mutex*/
|
||||
/* #define RT_USING_MUTEX */
|
||||
|
||||
/* Using Event*/
|
||||
/* #define RT_USING_EVENT */
|
||||
|
||||
/* Using MailBox*/
|
||||
#define RT_USING_MAILBOX
|
||||
|
||||
/* Using Message Queue*/
|
||||
/* #define RT_USING_MESSAGEQUEUE */
|
||||
|
||||
/* SECTION: Memory Management */
|
||||
/* Using Memory Pool Management*/
|
||||
/* #define RT_USING_MEMPOOL */
|
||||
|
||||
/* Using Dynamic Heap Management*/
|
||||
#define RT_USING_HEAP
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||||
|
||||
/* Using Small MM*/
|
||||
#define RT_USING_SMALL_MEM
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||||
#define RT_USING_TINY_SIZE
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||||
|
||||
/* SECTION: Device System */
|
||||
/* Using Device System */
|
||||
#define RT_USING_DEVICE
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||||
|
||||
/* buffer size for UART reception */
|
||||
#define RT_UART_RX_BUFFER_SIZE 64
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||||
|
||||
/* Using UART */
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||||
#define RT_USING_UART
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||||
|
||||
/* SECTION: Console options */
|
||||
/* use console for rt_kprintf */
|
||||
#define RT_USING_CONSOLE
|
||||
/* the buffer size of console */
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||||
#define RT_CONSOLEBUF_SIZE 80
|
||||
|
||||
/* SECTION: finsh, a C-Express shell */
|
||||
/* Using FinSH as Shell*/
|
||||
#define RT_USING_FINSH
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||||
/* Using symbol table */
|
||||
#define FINSH_USING_SYMTAB
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||||
#define FINSH_USING_DESCRIPTION
|
||||
|
||||
#endif
|
||||
@@ -0,0 +1,111 @@
|
||||
/*
|
||||
* File : startup.c
|
||||
* This file is part of RT-Thread RTOS
|
||||
* COPYRIGHT (C) 2006, RT-Thread Develop Team
|
||||
*
|
||||
* The license and distribution terms for this file may be
|
||||
* found in the file LICENSE in this distribution or at
|
||||
* http://www.rt-thread.org/license/LICENSE
|
||||
*
|
||||
* Change Logs:
|
||||
* Date Author Notes
|
||||
* 2010-01-25 Bernard first version
|
||||
*/
|
||||
|
||||
#include <rthw.h>
|
||||
#include <rtthread.h>
|
||||
|
||||
#include "board.h"
|
||||
#ifdef RT_USING_FINSH
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||||
#include "finsh.h"
|
||||
extern void finsh_system_init(void);
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @addtogroup NUC100
|
||||
*/
|
||||
|
||||
/*@{*/
|
||||
#if defined(__CC_ARM)
|
||||
extern int Image$$RW_IRAM1$$ZI$$Limit;
|
||||
#elif defined(__GNUC__)
|
||||
extern unsigned char __bss_start;
|
||||
extern unsigned char __bss_end;
|
||||
#endif
|
||||
|
||||
extern int rt_application_init(void);
|
||||
|
||||
/**
|
||||
* This function will startup RT-Thread RTOS.
|
||||
*/
|
||||
void rtthread_startup(void)
|
||||
{
|
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/* init kernel object */
|
||||
rt_system_object_init();
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||||
|
||||
/* init board */
|
||||
rt_hw_board_init();
|
||||
rt_show_version();
|
||||
|
||||
/* init tick */
|
||||
rt_system_tick_init();
|
||||
|
||||
/* init timer system */
|
||||
rt_system_timer_init();
|
||||
|
||||
#ifdef RT_USING_HEAP
|
||||
#ifdef __CC_ARM
|
||||
rt_system_heap_init((void*)&Image$$RW_IRAM1$$ZI$$Limit, (void*)0x20004000);
|
||||
#elif __ICCARM__
|
||||
rt_system_heap_init(__segment_end("HEAP"), (void*)0x20004000);
|
||||
#else
|
||||
rt_system_heap_init((void*)&__bss_end, (void*)0x20004000);
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/* init scheduler system */
|
||||
rt_system_scheduler_init();
|
||||
|
||||
#ifdef RT_USING_HOOK /* if the hook is used */
|
||||
/* set idle thread hook */
|
||||
rt_thread_idle_sethook(rt_hw_led_flash);
|
||||
#endif
|
||||
|
||||
#ifdef RT_USING_DEVICE
|
||||
/* init all device */
|
||||
rt_device_init_all();
|
||||
#endif
|
||||
|
||||
/* init application */
|
||||
rt_application_init();
|
||||
|
||||
#ifdef RT_USING_FINSH
|
||||
/* init finsh */
|
||||
finsh_system_init();
|
||||
finsh_set_device("uart1");
|
||||
#endif
|
||||
|
||||
/* init idle thread */
|
||||
rt_thread_idle_init();
|
||||
|
||||
/* start scheduler */
|
||||
rt_system_scheduler_start();
|
||||
|
||||
/* never reach here */
|
||||
return ;
|
||||
}
|
||||
|
||||
int main (void)
|
||||
{
|
||||
rt_uint32_t UNUSED level;
|
||||
|
||||
/* disable interrupt first */
|
||||
level = rt_hw_interrupt_disable();
|
||||
|
||||
/* invoke rtthread_startup */
|
||||
rtthread_startup();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*@}*/
|
||||
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|
||||
#ifndef __UART_H__
|
||||
#define __UART_H__
|
||||
|
||||
void rt_hw_uart_init(void);
|
||||
|
||||
#endif
|
||||
@@ -0,0 +1,175 @@
|
||||
;/*
|
||||
; * File : context_rvds.S
|
||||
; * This file is part of RT-Thread RTOS
|
||||
; * COPYRIGHT (C) 2009, RT-Thread Development Team
|
||||
; *
|
||||
; * The license and distribution terms for this file may be
|
||||
; * found in the file LICENSE in this distribution or at
|
||||
; * http://www.rt-thread.org/license/LICENSE
|
||||
; *
|
||||
; * Change Logs:
|
||||
; * Date Author Notes
|
||||
; * 2010-01-25 Bernard first version
|
||||
; */
|
||||
|
||||
;/**
|
||||
; * @addtogroup NUC100
|
||||
; */
|
||||
;/*@{*/
|
||||
|
||||
NVIC_INT_CTRL EQU 0xE000ED04 ; interrupt control state register
|
||||
NVIC_SYSPRI2 EQU 0xE000ED20 ; system priority register (2)
|
||||
NVIC_PENDSV_PRI EQU 0x00FF0000 ; PendSV priority value (lowest)
|
||||
NVIC_PENDSVSET EQU 0x10000000 ; value to trigger PendSV exception
|
||||
|
||||
AREA |.text|, CODE, READONLY, ALIGN=2
|
||||
THUMB
|
||||
REQUIRE8
|
||||
PRESERVE8
|
||||
|
||||
IMPORT rt_thread_switch_interrput_flag
|
||||
IMPORT rt_interrupt_from_thread
|
||||
IMPORT rt_interrupt_to_thread
|
||||
|
||||
;/*
|
||||
; * rt_base_t rt_hw_interrupt_disable();
|
||||
; */
|
||||
rt_hw_interrupt_disable PROC
|
||||
EXPORT rt_hw_interrupt_disable
|
||||
MRS r0, PRIMASK
|
||||
CPSID I
|
||||
BX LR
|
||||
ENDP
|
||||
|
||||
;/*
|
||||
; * void rt_hw_interrupt_enable(rt_base_t level);
|
||||
; */
|
||||
rt_hw_interrupt_enable PROC
|
||||
EXPORT rt_hw_interrupt_enable
|
||||
MSR PRIMASK, r0
|
||||
BX LR
|
||||
ENDP
|
||||
|
||||
;/*
|
||||
; * void rt_hw_context_switch(rt_uint32 from, rt_uint32 to);
|
||||
; * r0 --> from
|
||||
; * r1 --> to
|
||||
; */
|
||||
rt_hw_context_switch_interrupt
|
||||
EXPORT rt_hw_context_switch_interrupt
|
||||
rt_hw_context_switch PROC
|
||||
EXPORT rt_hw_context_switch
|
||||
|
||||
; set rt_thread_switch_interrput_flag to 1
|
||||
LDR r2, =rt_thread_switch_interrput_flag
|
||||
LDR r3, [r2]
|
||||
CMP r3, #1
|
||||
BEQ _reswitch
|
||||
MOVS r3, #0x1
|
||||
STR r3, [r2]
|
||||
|
||||
LDR r2, =rt_interrupt_from_thread ; set rt_interrupt_from_thread
|
||||
STR r0, [r2]
|
||||
|
||||
_reswitch
|
||||
LDR r2, =rt_interrupt_to_thread ; set rt_interrupt_to_thread
|
||||
STR r1, [r2]
|
||||
|
||||
LDR r0, =NVIC_INT_CTRL ; trigger the PendSV exception (causes context switch)
|
||||
LDR r1, =NVIC_PENDSVSET
|
||||
STR r1, [r0]
|
||||
BX LR
|
||||
ENDP
|
||||
|
||||
; r0 --> swith from thread stack
|
||||
; r1 --> swith to thread stack
|
||||
; psr, pc, lr, r12, r3, r2, r1, r0 are pushed into [from] stack
|
||||
rt_hw_pend_sv PROC
|
||||
EXPORT rt_hw_pend_sv
|
||||
|
||||
; disable interrupt to protect context switch
|
||||
MRS r2, PRIMASK
|
||||
CPSID I
|
||||
|
||||
; get rt_thread_switch_interrupt_flag
|
||||
LDR r0, =rt_thread_switch_interrput_flag
|
||||
LDR r1, [r0]
|
||||
CMP r1, #0x00
|
||||
BEQ pendsv_exit ; pendsv already handled
|
||||
|
||||
; clear rt_thread_switch_interrput_flag to 0
|
||||
MOVS r1, #0x00
|
||||
STR r1, [r0]
|
||||
|
||||
LDR r0, =rt_interrupt_from_thread
|
||||
LDR r1, [r0]
|
||||
CMP r1, #0x00
|
||||
BEQ swtich_to_thread ; skip register save at the first time
|
||||
|
||||
MRS r1, psp ; get from thread stack pointer
|
||||
SUBS r1, r1, #0x10
|
||||
LDR r0, [r0]
|
||||
STR r1, [r0] ; update from thread stack pointer
|
||||
STMIA r1!, {r4 - r7} ; push r4 - r7 register
|
||||
|
||||
swtich_to_thread
|
||||
LDR r1, =rt_interrupt_to_thread
|
||||
LDR r1, [r1]
|
||||
LDR r1, [r1] ; load thread stack pointer
|
||||
|
||||
LDMIA r1!, {r4 - r7} ; pop r4 - r7 register
|
||||
MSR psp, r1 ; update stack pointer
|
||||
|
||||
pendsv_exit
|
||||
; restore interrupt
|
||||
MSR PRIMASK, r2
|
||||
|
||||
MOVS r0, #0x04
|
||||
RSBS r0, #0
|
||||
BX r0
|
||||
ENDP
|
||||
|
||||
;/*
|
||||
; * void rt_hw_context_switch_to(rt_uint32 to);
|
||||
; * r0 --> to
|
||||
; * this fucntion is used to perform the first thread switch
|
||||
; */
|
||||
rt_hw_context_switch_to PROC
|
||||
EXPORT rt_hw_context_switch_to
|
||||
; set to thread
|
||||
LDR r1, =rt_interrupt_to_thread
|
||||
STR r0, [r1]
|
||||
|
||||
; set from thread to 0
|
||||
LDR r1, =rt_interrupt_from_thread
|
||||
MOVS r0, #0x0
|
||||
STR r0, [r1]
|
||||
|
||||
; set interrupt flag to 1
|
||||
LDR r1, =rt_thread_switch_interrput_flag
|
||||
MOVS r0, #1
|
||||
STR r0, [r1]
|
||||
|
||||
; set the PendSV exception priority
|
||||
; LDR r0, =NVIC_SYSPRI2
|
||||
; LDR r1, =NVIC_PENDSV_PRI
|
||||
; STR r1, [r0]
|
||||
|
||||
; trigger the PendSV exception (causes context switch)
|
||||
LDR r0, =NVIC_INT_CTRL
|
||||
LDR r1, =NVIC_PENDSVSET
|
||||
STR r1, [r0]
|
||||
|
||||
; enable interrupts at processor level
|
||||
CPSIE I
|
||||
|
||||
; never reach here!
|
||||
ENDP
|
||||
|
||||
; compatible with old version
|
||||
rt_hw_interrupt_thread_switch PROC
|
||||
EXPORT rt_hw_interrupt_thread_switch
|
||||
BX lr
|
||||
ENDP
|
||||
|
||||
END
|
||||
@@ -0,0 +1,47 @@
|
||||
/*
|
||||
* File : fault.c
|
||||
* This file is part of RT-Thread RTOS
|
||||
* COPYRIGHT (C) 2009, RT-Thread Development Team
|
||||
*
|
||||
* The license and distribution terms for this file may be
|
||||
* found in the file LICENSE in this distribution or at
|
||||
* http://www.rt-thread.org/license/LICENSE
|
||||
*
|
||||
* Change Logs:
|
||||
* Date Author Notes
|
||||
* 2010-01-25 Bernard first version
|
||||
*/
|
||||
#include <rtthread.h>
|
||||
|
||||
struct stack_contex
|
||||
{
|
||||
rt_uint32_t r0;
|
||||
rt_uint32_t r1;
|
||||
rt_uint32_t r2;
|
||||
rt_uint32_t r3;
|
||||
rt_uint32_t r12;
|
||||
rt_uint32_t lr;
|
||||
rt_uint32_t pc;
|
||||
rt_uint32_t psr;
|
||||
};
|
||||
|
||||
extern void rt_hw_interrupt_thread_switch(void);
|
||||
extern void list_thread(void);
|
||||
extern rt_thread_t rt_current_thread;
|
||||
void rt_hw_hard_fault_exception(struct stack_contex* contex)
|
||||
{
|
||||
rt_kprintf("psr: 0x%08x\n", contex->psr);
|
||||
rt_kprintf(" pc: 0x%08x\n", contex->pc);
|
||||
rt_kprintf(" lr: 0x%08x\n", contex->lr);
|
||||
rt_kprintf("r12: 0x%08x\n", contex->r12);
|
||||
rt_kprintf("r03: 0x%08x\n", contex->r3);
|
||||
rt_kprintf("r02: 0x%08x\n", contex->r2);
|
||||
rt_kprintf("r01: 0x%08x\n", contex->r1);
|
||||
rt_kprintf("r00: 0x%08x\n", contex->r0);
|
||||
|
||||
rt_kprintf("hard fault on thread: %s\n", rt_current_thread->name);
|
||||
#ifdef RT_USING_FINSH
|
||||
list_thread();
|
||||
#endif
|
||||
while (1);
|
||||
}
|
||||
@@ -0,0 +1,32 @@
|
||||
;/*
|
||||
; * File : fault_rvds.S
|
||||
; * This file is part of RT-Thread RTOS
|
||||
; * COPYRIGHT (C) 2006, RT-Thread Development Team
|
||||
; *
|
||||
; * The license and distribution terms for this file may be
|
||||
; * found in the file LICENSE in this distribution or at
|
||||
; * http://www.rt-thread.org/license/LICENSE
|
||||
; *
|
||||
; * Change Logs:
|
||||
; * Date Author Notes
|
||||
; * 2010-01-25 Bernard first version
|
||||
; */
|
||||
|
||||
AREA |.text|, CODE, READONLY, ALIGN=2
|
||||
THUMB
|
||||
REQUIRE8
|
||||
PRESERVE8
|
||||
|
||||
IMPORT rt_hw_hard_fault_exception
|
||||
|
||||
rt_hw_hard_fault PROC
|
||||
EXPORT rt_hw_hard_fault
|
||||
|
||||
; get current context
|
||||
MRS r0, psp ; get fault thread stack pointer
|
||||
PUSH {lr}
|
||||
BL rt_hw_hard_fault_exception
|
||||
POP {pc}
|
||||
ENDP
|
||||
|
||||
END
|
||||
@@ -0,0 +1,21 @@
|
||||
/*
|
||||
* File : interrupt.c
|
||||
* This file is part of RT-Thread RTOS
|
||||
* COPYRIGHT (C) 2009, RT-Thread Development Team
|
||||
*
|
||||
* The license and distribution terms for this file may be
|
||||
* found in the file LICENSE in this distribution or at
|
||||
* http://www.rt-thread.org/license/LICENSE
|
||||
*
|
||||
* Change Logs:
|
||||
* Date Author Notes
|
||||
* 2010-01-25 Bernard first version
|
||||
*/
|
||||
|
||||
#include <rtthread.h>
|
||||
|
||||
/* exception and interrupt handler table */
|
||||
rt_uint32_t rt_interrupt_from_thread, rt_interrupt_to_thread;
|
||||
rt_uint8_t rt_thread_switch_interrput_flag;
|
||||
|
||||
/*@}*/
|
||||
@@ -0,0 +1,54 @@
|
||||
/*
|
||||
* File : stack.c
|
||||
* This file is part of RT-Thread RTOS
|
||||
* COPYRIGHT (C) 2009, RT-Thread Development Team
|
||||
*
|
||||
* The license and distribution terms for this file may be
|
||||
* found in the file LICENSE in this distribution or at
|
||||
* http://www.rt-thread.org/license/LICENSE
|
||||
*
|
||||
* Change Logs:
|
||||
* Date Author Notes
|
||||
* 2010-01-25 Bernard first version
|
||||
*/
|
||||
#include <rtthread.h>
|
||||
|
||||
/**
|
||||
* @addtogroup NUC100
|
||||
*/
|
||||
/*@{*/
|
||||
|
||||
/**
|
||||
* This function will initialize thread stack
|
||||
*
|
||||
* @param tentry the entry of thread
|
||||
* @param parameter the parameter of entry
|
||||
* @param stack_addr the beginning stack address
|
||||
* @param texit the function will be called when thread exit
|
||||
*
|
||||
* @return stack address
|
||||
*/
|
||||
rt_uint8_t *rt_hw_stack_init(void *tentry, void *parameter,
|
||||
rt_uint8_t *stack_addr, void *texit)
|
||||
{
|
||||
unsigned long *stk;
|
||||
|
||||
stk = (unsigned long *)stack_addr;
|
||||
*(stk) = 0x01000000L; /* PSR */
|
||||
*(--stk) = (unsigned long)tentry; /* entry point, pc */
|
||||
*(--stk) = (unsigned long)texit; /* lr */
|
||||
*(--stk) = 0; /* r12 */
|
||||
*(--stk) = 0; /* r3 */
|
||||
*(--stk) = 0; /* r2 */
|
||||
*(--stk) = 0; /* r1 */
|
||||
*(--stk) = (unsigned long)parameter; /* r0 : argument */
|
||||
*(--stk) = 0; /* r7 */
|
||||
*(--stk) = 0; /* r6 */
|
||||
*(--stk) = 0; /* r5 */
|
||||
*(--stk) = 0; /* r4 */
|
||||
|
||||
/* return task's current stack address */
|
||||
return (rt_uint8_t *)stk;
|
||||
}
|
||||
|
||||
/*@}*/
|
||||
File diff suppressed because it is too large.
Load diff
Reference in new issue
Block a user