f51bce3fed
We currently only support building with CCS and SCons is not using.
bsp/rm48x50/HALCoGen/HALCoGen.{hcg,dil} is the HALCoGen project file.
You may need to regenerate the source file as you like, providing that:
1, IRQ is in Dispatch Mode and the table entry is IRQ_Handler. The
channel 5 in enabled and connected to IRQ.
2, RTI driver is enabled and compare3 source is selected to counter1
and the compare3 will generate tick in the period of 10ms. This
value is coresponding with RT_TICK_PER_SECOND in rtconfig.h.
In CCS, you need to create a new CCS project and create link folders
pointing at bsp/rm48x50, libcpu/arm/rm48x50 and src/, include/. Remember
to add the include path to the Build Properties.
107 lines
2.4 KiB
C
107 lines
2.4 KiB
C
/*
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* File : trap.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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* 2008-12-11 XuXinming first version
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* 2013-03-29 aozima Modify the interrupt interface implementations.
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*/
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#include <rtthread.h>
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#include <rthw.h>
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#include "RM48x50.h"
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#define MAX_HANDLERS 96
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/* exception and interrupt handler table */
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struct rt_irq_desc irq_desc[MAX_HANDLERS];
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extern rt_uint32_t rt_interrupt_nest;
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/* exception and interrupt handler table */
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rt_uint32_t rt_interrupt_from_thread, rt_interrupt_to_thread;
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rt_uint32_t rt_thread_switch_interrupt_flag;
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/**
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* @addtogroup RM48x50
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*/
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/*@{*/
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static void rt_hw_int_not_handle(int vector, void *param)
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{
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rt_kprintf("Unhandled interrupt %d occured!!!\n", vector);
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}
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#define vimRAM (0xFFF82000U)
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void rt_hw_interrupt_init(void)
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{
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register int i;
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rt_uint32_t *vect_addr;
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/* the initialization is done in sys_startup.c */
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/* init exceptions table */
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rt_memset(irq_desc, 0x00, sizeof(irq_desc));
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for(i=0; i < MAX_HANDLERS; i++)
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{
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irq_desc[i].handler = rt_hw_int_not_handle;
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vect_addr = (rt_uint32_t *)(vimRAM + i*4);
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*vect_addr = (rt_uint32_t)&irq_desc[i];
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}
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/* init interrupt nest, and context in thread sp */
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rt_interrupt_nest = 0;
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rt_interrupt_from_thread = 0;
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rt_interrupt_to_thread = 0;
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rt_thread_switch_interrupt_flag = 0;
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}
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void rt_hw_interrupt_mask(int vector)
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{
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vimEnableInterrupt(vector, SYS_IRQ);
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}
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void rt_hw_interrupt_umask(int vector)
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{
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vimDisableInterrupt(vector);
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}
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/**
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* This function will install a interrupt service routine to a interrupt.
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* @param vector the interrupt number
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* @param handler the interrupt service routine to be installed
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* @param param the parameter for interrupt service routine
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* @name unused.
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*
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* @return the old handler
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*/
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rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler,
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void *param, char *name)
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{
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rt_isr_handler_t old_handler = RT_NULL;
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if(vector >= 0 && vector < MAX_HANDLERS)
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{
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old_handler = irq_desc[vector].handler;
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if (handler != RT_NULL)
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{
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irq_desc[vector].handler = handler;
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irq_desc[vector].param = param;
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}
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}
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return old_handler;
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}
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/*@}*/
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