mirror of
https://github.com/armink/FreeModbus_Slave-Master-RTT-STM32.git
synced 2025-02-25 09:56:56 +08:00
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>
118 lines
2.6 KiB
C
118 lines
2.6 KiB
C
/*
|
|
* File : trap.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://openlab.rt-thread.com/license/LICENSE
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2006-03-13 Bernard first version
|
|
*/
|
|
|
|
#include <rtthread.h>
|
|
#include "s3c24x0.h"
|
|
|
|
#define MAX_HANDLERS 32
|
|
|
|
extern rt_uint32_t rt_interrupt_nest;
|
|
|
|
/* exception and interrupt handler table */
|
|
rt_isr_handler_t isr_table[MAX_HANDLERS];
|
|
rt_uint32_t rt_interrupt_from_thread, rt_interrupt_to_thread;
|
|
rt_uint32_t rt_thread_switch_interrupt_flag;
|
|
|
|
/**
|
|
* @addtogroup S3C24X0
|
|
*/
|
|
/*@{*/
|
|
|
|
rt_isr_handler_t rt_hw_interrupt_handle(rt_uint32_t vector)
|
|
{
|
|
rt_kprintf("Unhandled interrupt %d occured!!!\n", vector);
|
|
return RT_NULL;
|
|
}
|
|
|
|
/**
|
|
* This function will initialize hardware interrupt
|
|
*/
|
|
void rt_hw_interrupt_init(void)
|
|
{
|
|
register rt_uint32_t idx;
|
|
|
|
/* all clear source pending */
|
|
SRCPND = 0x0;
|
|
|
|
/* all clear sub source pending */
|
|
SUBSRCPND = 0x0;
|
|
|
|
/* all=IRQ mode */
|
|
INTMOD = 0x0;
|
|
|
|
/* all interrupt disabled include global bit */
|
|
INTMSK = BIT_ALLMSK;
|
|
|
|
/* all sub interrupt disable */
|
|
INTSUBMSK = BIT_SUB_ALLMSK;
|
|
|
|
/* all clear interrupt pending */
|
|
INTPND = BIT_ALLMSK;
|
|
|
|
/* init exceptions table */
|
|
for(idx=0; idx < MAX_HANDLERS; idx++)
|
|
{
|
|
isr_table[idx] = (rt_isr_handler_t)rt_hw_interrupt_handle;
|
|
}
|
|
|
|
/* init interrupt nest, and context in thread sp */
|
|
rt_interrupt_nest = 0;
|
|
rt_interrupt_from_thread = 0;
|
|
rt_interrupt_to_thread = 0;
|
|
rt_thread_switch_interrupt_flag = 0;
|
|
}
|
|
|
|
/**
|
|
* This function will mask a interrupt.
|
|
* @param vector the interrupt number
|
|
*/
|
|
void rt_hw_interrupt_mask(int vector)
|
|
{
|
|
INTMSK |= 1 << vector;
|
|
}
|
|
|
|
/**
|
|
* This function will un-mask a interrupt.
|
|
* @param vector the interrupt number
|
|
*/
|
|
void rt_hw_interrupt_umask(int vector)
|
|
{
|
|
if (vector == INTNOTUSED6)
|
|
{
|
|
rt_kprintf("Interrupt vec %d is not used!\n", vector);
|
|
// while(1);
|
|
}
|
|
else if (vector == INTGLOBAL)
|
|
INTMSK = 0x0;
|
|
else
|
|
INTMSK &= ~(1 << vector);
|
|
}
|
|
|
|
/**
|
|
* This function will install a interrupt service routine to a interrupt.
|
|
* @param vector the interrupt number
|
|
* @param new_handler the interrupt service routine to be installed
|
|
* @param old_handler the old interrupt service routine
|
|
*/
|
|
void rt_hw_interrupt_install(int vector, rt_isr_handler_t new_handler, rt_isr_handler_t *old_handler)
|
|
{
|
|
if(vector < MAX_HANDLERS)
|
|
{
|
|
if (old_handler != RT_NULL) *old_handler = isr_table[vector];
|
|
if (new_handler != RT_NULL) isr_table[vector] = new_handler;
|
|
}
|
|
}
|
|
|
|
/*@}*/
|