mirror of
https://github.com/RT-Thread/rt-thread.git
synced 2026-09-21 02:06:14 +08:00
*** EFM32 branch ***
- New branch for Energy Micro's MCUs (http://energymicro.com/). - Target board: FM32 Gecko Starter Kit (http://www.energymicro.com/tools) git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1274 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
onelife.real
@@ -0,0 +1,174 @@
|
||||
/******************************************************************//**
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||||
* @file context_gcc.S
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||||
* @brief Context switch functions
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||||
* COPYRIGHT (C) 2009, RT-Thread Development Team
|
||||
* @author Bernard, onelife
|
||||
* @version 0.4 beta
|
||||
**********************************************************************
|
||||
* @section License
|
||||
* 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
|
||||
**********************************************************************
|
||||
* @section Change Logs
|
||||
* Date Author Notes
|
||||
* 2009-10-11 Bernard first version
|
||||
* 2010-12-29 onelife Modify for EFM32
|
||||
*********************************************************************/
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||||
|
||||
/******************************************************************//**
|
||||
* @addtogroup cortex-m3
|
||||
* @{
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||||
*********************************************************************/
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||||
|
||||
.cpu cortex-m3
|
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.fpu softvfp
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||||
.syntax unified
|
||||
.thumb
|
||||
.text
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||||
|
||||
.equ ICSR, 0xE000ED04 /* interrupt control state register */
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.equ PENDSVSET_BIT, 0x10000000 /* value to trigger PendSV exception */
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.equ SHPR3, 0xE000ED20 /* system priority register (3) */
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.equ PENDSV_PRI_LOWEST, 0x00FF0000 /* PendSV priority value (lowest) */
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||||
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||||
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||||
/*
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* rt_base_t rt_hw_interrupt_disable();
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*/
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.global rt_hw_interrupt_disable
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.type rt_hw_interrupt_disable, %function
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rt_hw_interrupt_disable:
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MRS R0, PRIMASK
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CPSID I
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BX LR
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/*
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* void rt_hw_interrupt_enable(rt_base_t level);
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*/
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.global rt_hw_interrupt_enable
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.type rt_hw_interrupt_enable, %function
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rt_hw_interrupt_enable:
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MSR PRIMASK, R0
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BX LR
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/*
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* void rt_hw_context_switch(rt_uint32 from, rt_uint32 to);
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* R0 --> from
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* R1 --> to
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*/
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.global rt_hw_context_switch_interrupt
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.type rt_hw_context_switch_interrupt, %function
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.global rt_hw_context_switch
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.type rt_hw_context_switch, %function
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rt_hw_context_switch_interrupt:
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rt_hw_context_switch:
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/* set rt_thread_switch_interrput_flag to 1 */
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LDR R2, =rt_thread_switch_interrput_flag
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LDR R3, [R2]
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CMP R3, #1
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BEQ _reswitch
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MOV R3, #1
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STR R3, [R2]
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LDR R2, =rt_interrupt_from_thread /* set rt_interrupt_from_thread */
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STR R0, [R2]
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_reswitch:
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LDR R2, =rt_interrupt_to_thread /* set rt_interrupt_to_thread */
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STR R1, [R2]
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LDR R0, =ICSR /* trigger the PendSV exception (causes context switch) */
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LDR R1, =PENDSVSET_BIT
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STR R1, [R0]
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BX LR
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/* R0 --> swith from thread stack
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* R1 --> swith to thread stack
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* psr, pc, LR, R12, R3, R2, R1, R0 are pushed into [from] stack
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*/
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.global rt_hw_pend_sv
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.type rt_hw_pend_sv, %function
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rt_hw_pend_sv:
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/* disable interrupt to protect context switch */
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MRS R2, PRIMASK
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CPSID I
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|
||||
/* get rt_thread_switch_interrupt_flag */
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LDR R0, =rt_thread_switch_interrput_flag
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LDR R1, [R0]
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CBZ R1, pendsv_exit /* pendsv aLReady handled */
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||||
|
||||
/* clear rt_thread_switch_interrput_flag to 0 */
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MOV R1, #0
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STR R1, [R0]
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LDR R0, =rt_interrupt_from_thread
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LDR R1, [R0]
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CBZ R1, swtich_to_thread /* skip register save at the first time */
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MRS R1, PSP /* get from thread stack pointer */
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STMFD R1!, {R4 - R11} /* push R4 - R11 register */
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LDR R0, [R0]
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STR R1, [R0] /* update from thread stack pointer */
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||||
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||||
swtich_to_thread:
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LDR R1, =rt_interrupt_to_thread
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LDR R1, [R1]
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LDR R1, [R1] /* load thread stack pointer */
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||||
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LDMFD R1!, {R4 - R11} /* pop R4 - R11 register */
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MSR PSP, R1 /* update stack pointer */
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pendsv_exit:
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/* restore interrupt */
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||||
MSR PRIMASK, R2
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||||
ORR LR, LR, #0x04
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BX LR
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||||
/*
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* void rt_hw_context_switch_to(rt_uint32 to);
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* R0 --> to
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||||
*/
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.global rt_hw_context_switch_to
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.type rt_hw_context_switch_to, %function
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rt_hw_context_switch_to:
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LDR R1, =rt_interrupt_to_thread
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STR R0, [R1]
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/* set from thread to 0 */
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LDR R1, =rt_interrupt_from_thread
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MOV R0, #0
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STR R0, [R1]
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|
||||
/* set interrupt flag to 1 */
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LDR R1, =rt_thread_switch_interrput_flag
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MOV R0, #1
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STR R0, [R1]
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/* set the PendSV exception priority */
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LDR R0, =SHPR3
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LDR R1, =PENDSV_PRI_LOWEST
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LDR.W R2, [R0,#0] /* read */
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ORR R1, R1, R2 /* modify */
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STR R1, [R0] /* write-back */
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||||
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LDR R0, =ICSR /* trigger the PendSV exception (causes context switch) */
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LDR R1, =PENDSVSET_BIT
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STR R1, [R0]
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||||
|
||||
CPSIE I /* enable interrupts at processor level */
|
||||
|
||||
/* never reach here! */
|
||||
|
||||
/* compatible with old version */
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.global rt_hw_interrupt_thread_switch
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||||
.type rt_hw_interrupt_thread_switch, %function
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rt_hw_interrupt_thread_switch:
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BX LR
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||||
NOP
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||||
|
||||
/******************************************************************//**
|
||||
* @}
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||||
*********************************************************************/
|
||||
@@ -0,0 +1,54 @@
|
||||
/******************************************************************//**
|
||||
* @file cpu.c
|
||||
* @brief This file is part of RT-Thread RTOS
|
||||
* COPYRIGHT (C) 2009, RT-Thread Development Team
|
||||
* @author Bernard, onelife
|
||||
* @version 0.4 beta
|
||||
**********************************************************************
|
||||
* @section License
|
||||
* 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
|
||||
**********************************************************************
|
||||
* @section Change Logs
|
||||
* Date Author Notes
|
||||
* 2009-01-05 Bernard first version
|
||||
* 2011-02-14 onelife Modify for EFM32
|
||||
*********************************************************************/
|
||||
|
||||
/******************************************************************//**
|
||||
* @addtogroup cortex-m3
|
||||
* @{
|
||||
*********************************************************************/
|
||||
|
||||
/* Includes -------------------------------------------------------------------*/
|
||||
#include <rtthread.h>
|
||||
|
||||
/* Private typedef -------------------------------------------------------------*/
|
||||
/* Private define --------------------------------------------------------------*/
|
||||
/* Private macro --------------------------------------------------------------*/
|
||||
/* Private variables ------------------------------------------------------------*/
|
||||
/* Private function prototypes ---------------------------------------------------*/
|
||||
/* Private functions ------------------------------------------------------------*/
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||||
/**
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||||
* reset cpu by dog's time-out
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||||
*
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||||
*/
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||||
void rt_hw_cpu_reset()
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||||
{
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||||
/*NOTREACHED*/
|
||||
}
|
||||
|
||||
/**
|
||||
* shutdown CPU
|
||||
*
|
||||
*/
|
||||
void rt_hw_cpu_shutdown()
|
||||
{
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||||
rt_kprintf("shutdown...\n");
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||||
|
||||
RT_ASSERT(0);
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||||
}
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||||
|
||||
/******************************************************************//**
|
||||
* @}
|
||||
*********************************************************************/
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||||
@@ -0,0 +1,68 @@
|
||||
/******************************************************************//**
|
||||
* @file fault.c
|
||||
* @brief This file is part of RT-Thread RTOS
|
||||
* COPYRIGHT (C) 2009, RT-Thread Development Team
|
||||
* @author Bernard, onelife
|
||||
* @version 0.4 beta
|
||||
**********************************************************************
|
||||
* @section License
|
||||
* 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
|
||||
**********************************************************************
|
||||
* @section Change Logs
|
||||
* Date Author Notes
|
||||
* 2009-01-05 Bernard first version
|
||||
* 2011-02-14 onelife Modify for EFM32
|
||||
*********************************************************************/
|
||||
|
||||
/******************************************************************//**
|
||||
* @addtogroup cortex-m3
|
||||
* @{
|
||||
*********************************************************************/
|
||||
|
||||
/* Includes -------------------------------------------------------------------*/
|
||||
#include <rtthread.h>
|
||||
|
||||
/* Private typedef -------------------------------------------------------------*/
|
||||
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;
|
||||
};
|
||||
|
||||
/* Private define --------------------------------------------------------------*/
|
||||
/* Private macro --------------------------------------------------------------*/
|
||||
/* Private variables ------------------------------------------------------------*/
|
||||
/* External function prototypes --------------------------------------------------*/
|
||||
extern void list_thread(void);
|
||||
extern rt_thread_t rt_current_thread;
|
||||
|
||||
/* Private function prototypes ---------------------------------------------------*/
|
||||
/* Private functions ------------------------------------------------------------*/
|
||||
void rt_hw_hard_fault_exception(struct stack_contex* contex)
|
||||
{
|
||||
rt_kprintf("psr: 0x%08x\n", contex->psr);
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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 +1,43 @@
|
||||
/******************************************************************//**
|
||||
* @file fault_gcc.S
|
||||
* @brief Faults handling functions
|
||||
* COPYRIGHT (C) 2009, RT-Thread Development Team
|
||||
* @author Bernard, onelife
|
||||
* @version 0.4 beta
|
||||
**********************************************************************
|
||||
* @section License
|
||||
* 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
|
||||
**********************************************************************
|
||||
* @section Change Logs
|
||||
* Date Author Notes
|
||||
* 2009-10-11 Bernard first version
|
||||
* 2010-12-29 onelife Modify for EFM32
|
||||
*********************************************************************/
|
||||
|
||||
/******************************************************************//**
|
||||
* @addtogroup cortex-m3
|
||||
* @{
|
||||
*********************************************************************/
|
||||
|
||||
.cpu cortex-m3
|
||||
.fpu softvfp
|
||||
.syntax unified
|
||||
.thumb
|
||||
.text
|
||||
|
||||
.global rt_hw_hard_fault
|
||||
.type rt_hw_hard_fault, %function
|
||||
rt_hw_hard_fault:
|
||||
/* get current context */
|
||||
MRS r0, psp /* get fault thread stack pointer */
|
||||
PUSH {lr}
|
||||
BL rt_hw_hard_fault_exception
|
||||
POP {lr}
|
||||
|
||||
ORR lr, lr, #0x04
|
||||
BX lr
|
||||
|
||||
/******************************************************************//**
|
||||
* @}
|
||||
*********************************************************************/
|
||||
@@ -0,0 +1,39 @@
|
||||
/******************************************************************//**
|
||||
* @file interrupt.c
|
||||
* @brief This file is part of RT-Thread RTOS
|
||||
* COPYRIGHT (C) 2009, RT-Thread Development Team
|
||||
* @author Bernard, onelife
|
||||
* @version 0.4 beta
|
||||
**********************************************************************
|
||||
* @section License
|
||||
* 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
|
||||
**********************************************************************
|
||||
* @section Change Logs
|
||||
* Date Author Notes
|
||||
* 2009-01-05 Bernard first version
|
||||
* 2011-02-14 onelife Modify for EFM32
|
||||
*********************************************************************/
|
||||
|
||||
/******************************************************************//**
|
||||
* @addtogroup cortex-m3
|
||||
* @{
|
||||
*********************************************************************/
|
||||
|
||||
/* Includes -------------------------------------------------------------------*/
|
||||
#include <rtthread.h>
|
||||
|
||||
/* Private typedef -------------------------------------------------------------*/
|
||||
/* Private define --------------------------------------------------------------*/
|
||||
/* Private macro --------------------------------------------------------------*/
|
||||
/* Private variables ------------------------------------------------------------*/
|
||||
/* exception and interrupt handler table */
|
||||
rt_uint32_t rt_interrupt_from_thread, rt_interrupt_to_thread;
|
||||
rt_uint32_t rt_thread_switch_interrput_flag;
|
||||
|
||||
/* Private function prototypes ---------------------------------------------------*/
|
||||
/* Private functions ------------------------------------------------------------*/
|
||||
|
||||
/******************************************************************//**
|
||||
* @}
|
||||
*********************************************************************/
|
||||
@@ -0,0 +1,72 @@
|
||||
/******************************************************************//**
|
||||
* @file stack.c
|
||||
* @brief This file is part of RT-Thread RTOS
|
||||
* COPYRIGHT (C) 2009, RT-Thread Development Team
|
||||
* @author Bernard, onelife
|
||||
* @version 0.4 beta
|
||||
**********************************************************************
|
||||
* @section License
|
||||
* 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
|
||||
**********************************************************************
|
||||
* @section Change Logs
|
||||
* Date Author Notes
|
||||
* 2006-08-23 Bernard first version
|
||||
* 2011-02-14 onelife Modify for EFM32
|
||||
*********************************************************************/
|
||||
|
||||
/******************************************************************//**
|
||||
* @addtogroup cortex-m3
|
||||
* @{
|
||||
*********************************************************************/
|
||||
|
||||
/* Includes -------------------------------------------------------------------*/
|
||||
#include <rtthread.h>
|
||||
|
||||
/* Private typedef -------------------------------------------------------------*/
|
||||
/* Private define --------------------------------------------------------------*/
|
||||
/* Private macro --------------------------------------------------------------*/
|
||||
/* Private variables ------------------------------------------------------------*/
|
||||
/* Private function prototypes ---------------------------------------------------*/
|
||||
/* Private functions ------------------------------------------------------------*/
|
||||
/**
|
||||
* 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; /* r11 */
|
||||
*(--stk) = 0; /* r10 */
|
||||
*(--stk) = 0; /* r9 */
|
||||
*(--stk) = 0; /* r8 */
|
||||
*(--stk) = 0; /* r7 */
|
||||
*(--stk) = 0; /* r6 */
|
||||
*(--stk) = 0; /* r5 */
|
||||
*(--stk) = 0; /* r4 */
|
||||
|
||||
/* return task's current stack address */
|
||||
return (rt_uint8_t *)stk;
|
||||
}
|
||||
|
||||
/******************************************************************//**
|
||||
* @}
|
||||
*********************************************************************/
|
||||
@@ -0,0 +1,294 @@
|
||||
/******************************************************************//**
|
||||
* @file start_gcc.S
|
||||
* @brief Context switch functions
|
||||
* COPYRIGHT (C) 2009, RT-Thread Development Team
|
||||
* @author onelife
|
||||
* @version 0.4 beta
|
||||
**********************************************************************
|
||||
* @section License
|
||||
* 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
|
||||
**********************************************************************
|
||||
* @section Change Logs
|
||||
* Date Author Notes
|
||||
* 2010-12-21 onelife Initial creation for EFM32
|
||||
*********************************************************************/
|
||||
|
||||
/******************************************************************//**
|
||||
* @addtogroup cortex-m3
|
||||
* @{
|
||||
*********************************************************************/
|
||||
|
||||
.syntax unified
|
||||
.cpu cortex-m3
|
||||
.fpu softvfp
|
||||
.thumb
|
||||
|
||||
/* start address for the initialization values of the .data section.
|
||||
defined in linker script */
|
||||
.word _sidata
|
||||
/* start address for the .data section. defined in linker script */
|
||||
.word _sdata
|
||||
/* end address for the .data section. defined in linker script */
|
||||
.word _edata
|
||||
/* start address for the .bss section. defined in linker script */
|
||||
.word _sbss
|
||||
/* end address for the .bss section. defined in linker script */
|
||||
.word _ebss
|
||||
|
||||
|
||||
/******************************************************************************
|
||||
*
|
||||
* The minimal vector table for a Cortex M3. Note that the proper constructs
|
||||
* must be placed on this to ensure that it ends up at physical address
|
||||
* 0x0000.0000.
|
||||
*
|
||||
******************************************************************************/
|
||||
.section .isr_vector, "a", %progbits
|
||||
.global g_pfnVectors
|
||||
.type g_pfnVectors, %object
|
||||
g_pfnVectors:
|
||||
.word Initial_spTop
|
||||
.word Reset_Handler
|
||||
.word NMI_Handler
|
||||
.word rt_hw_hard_fault
|
||||
.word MemManage_Handler
|
||||
.word BusFault_Handler
|
||||
.word UsageFault_Handler
|
||||
.word 0
|
||||
.word 0
|
||||
.word 0
|
||||
.word 0
|
||||
.word SVC_Handler
|
||||
.word DebugMon_Handler
|
||||
.word 0
|
||||
.word rt_hw_pend_sv
|
||||
.word rt_hw_timer_handler
|
||||
/* External Interrupts */
|
||||
.word DMA_IRQHandler /* 0: DMA Interrupt (efm32_dma.c) */
|
||||
.word GPIO_EVEN_IRQHandler /* 1: GPIO_EVEN Interrupt */
|
||||
.word TIMER0_IRQHandler /* 2: TIMER0 Interrupt */
|
||||
.word USART0_RX_IRQHandler /* 3: USART0_RX Interrupt */
|
||||
.word USART0_TX_IRQHandler /* 4: USART0_TX Interrupt */
|
||||
.word ACMP0_IRQHandler /* 5: ACMP0 Interrupt */
|
||||
.word ADC0_IRQHandler /* 6: ADC0 Interrupt */
|
||||
.word DAC0_IRQHandler /* 7: DAC0 Interrupt */
|
||||
.word I2C0_IRQHandler /* 8: I2C0 Interrupt */
|
||||
.word GPIO_ODD_IRQHandler /* 9: GPIO_ODD Interrupt */
|
||||
.word TIMER1_IRQHandler /* 10: TIMER1 Interrupt */
|
||||
.word TIMER2_IRQHandler /* 11: TIMER2 Interrupt */
|
||||
.word USART1_RX_IRQHandler /* 12: USART1_RX Interrupt */
|
||||
.word USART1_TX_IRQHandler /* 13: USART1_TX Interrupt */
|
||||
.word USART2_RX_IRQHandler /* 14: USART2_RX Interrupt */
|
||||
.word USART2_TX_IRQHandler /* 15: USART2_TX Interrupt */
|
||||
.word UART0_RX_IRQHandler /* 16: UART0_RX Interrupt */
|
||||
.word UART0_TX_IRQHandler /* 17: UART0_TX Interrupt */
|
||||
.word LEUART0_IRQHandler /* 18: LEUART0 Interrupt */
|
||||
.word LEUART1_IRQHandler /* 19: LEUART1 Interrupt */
|
||||
.word LETIMER0_IRQHandler /* 20: LETIMER0 Interrupt */
|
||||
.word PCNT0_IRQHandler /* 21: PCNT0 Interrupt */
|
||||
.word PCNT1_IRQHandler /* 22: PCNT1 Interrupt */
|
||||
.word PCNT2_IRQHandler /* 23: PCNT2 Interrupt */
|
||||
.word RTC_IRQHandler /* 24: RTC Interrupt */
|
||||
.word CMU_IRQHandler /* 25: CMU Interrupt */
|
||||
.word VCMP_IRQHandler /* 26: VCMP Interrupt */
|
||||
.word LCD_IRQHandler /* 27: LCD Interrupt */
|
||||
.word MSC_IRQHandler /* 28: MSC Interrupt */
|
||||
.word AES_IRQHandler /* 29: AES Interrupt */
|
||||
.size g_pfnVectors, .-g_pfnVectors
|
||||
|
||||
/**
|
||||
* @brief Top of stack pointer
|
||||
*/
|
||||
.section .bss.init
|
||||
.equ Stack_Size, 0x00000200
|
||||
.space Stack_Size
|
||||
Initial_spTop:
|
||||
|
||||
/**
|
||||
* @brief This is the code that gets called when the processor first
|
||||
* starts execution following a reset event. Only the absolutely
|
||||
* necessary set is performed, after which the application
|
||||
* supplied main() routine is called.
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
.thumb
|
||||
.thumb_func
|
||||
.section .text.Reset_Handler, "ax", %progbits
|
||||
.weak Reset_Handler
|
||||
.global Reset_Handler
|
||||
.type Reset_Handler, %function
|
||||
Reset_Handler:
|
||||
/* restore original stack pointer */
|
||||
ldr r0, =Initial_spTop
|
||||
msr msp, r0
|
||||
/* Copy the data segment initializers from flash to SRAM */
|
||||
movs r1, #0
|
||||
b LoopCopyDataInit
|
||||
|
||||
CopyDataInit:
|
||||
ldr r3, =_sidata
|
||||
ldr r3, [r3, r1]
|
||||
str r3, [r0, r1]
|
||||
adds r1, r1, #4
|
||||
|
||||
LoopCopyDataInit:
|
||||
ldr r0, =_sdata
|
||||
ldr r3, =_edata
|
||||
adds r2, r0, r1
|
||||
cmp r2, r3
|
||||
bcc CopyDataInit
|
||||
ldr r2, =_sbss
|
||||
b LoopFillZerobss
|
||||
|
||||
/* Zero fill the bss segment. */
|
||||
FillZerobss:
|
||||
movs r3, #0
|
||||
str r3, [r2], #4
|
||||
|
||||
LoopFillZerobss:
|
||||
ldr r3, = _ebss
|
||||
cmp r2, r3
|
||||
bcc FillZerobss
|
||||
/* Call the application's entry point.*/
|
||||
bl main
|
||||
bx lr
|
||||
.size Reset_Handler, .-Reset_Handler
|
||||
|
||||
/**
|
||||
* @brief This is the code that gets called when the processor receives an
|
||||
* unexpected interrupt. This simply enters an infinite loop, preserving
|
||||
* the system state for examination by a debugger.
|
||||
*
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
.thumb
|
||||
.thumb_func
|
||||
.section .text.Default_Handler, "ax", %progbits
|
||||
.global Default_Handler
|
||||
.type Default_Handler, %function
|
||||
Default_Handler:
|
||||
Infinite_Loop:
|
||||
b Infinite_Loop
|
||||
.size Default_Handler, .-Default_Handler
|
||||
|
||||
/*******************************************************************************
|
||||
*
|
||||
* Provide weak aliases for each Exception handler to the Default_Handler.
|
||||
* As they are weak aliases, any function with the same name will override
|
||||
* this definition.
|
||||
*
|
||||
*******************************************************************************/
|
||||
.weak NMI_Handler
|
||||
.thumb_set NMI_Handler, Default_Handler
|
||||
|
||||
.weak MemManage_Handler
|
||||
.thumb_set MemManage_Handler, Default_Handler
|
||||
|
||||
.weak BusFault_Handler
|
||||
.thumb_set BusFault_Handler, Default_Handler
|
||||
|
||||
.weak UsageFault_Handler
|
||||
.thumb_set UsageFault_Handler, Default_Handler
|
||||
|
||||
.weak SVC_Handler
|
||||
.thumb_set SVC_Handler, Default_Handler
|
||||
|
||||
.weak DebugMon_Handler
|
||||
.thumb_set DebugMon_Handler ,Default_Handler
|
||||
|
||||
.weak DMA_IRQHandler
|
||||
.thumb_set DMA_IRQHandler, Default_Handler
|
||||
|
||||
.weak GPIO_EVEN_IRQHandler
|
||||
.thumb_set GPIO_EVEN_IRQHandler, Default_Handler
|
||||
|
||||
.weak TIMER0_IRQHandler
|
||||
.thumb_set TIMER0_IRQHandler, Default_Handler
|
||||
|
||||
.weak USART0_RX_IRQHandler
|
||||
.thumb_set USART0_RX_IRQHandler, Default_Handler
|
||||
|
||||
.weak USART0_TX_IRQHandler
|
||||
.thumb_set USART0_TX_IRQHandler, Default_Handler
|
||||
|
||||
.weak ACMP0_IRQHandler
|
||||
.thumb_set ACMP0_IRQHandler, Default_Handler
|
||||
|
||||
.weak ADC0_IRQHandler
|
||||
.thumb_set ADC0_IRQHandler, Default_Handler
|
||||
|
||||
.weak DAC0_IRQHandler
|
||||
.thumb_set DAC0_IRQHandler, Default_Handler
|
||||
|
||||
.weak I2C0_IRQHandler
|
||||
.thumb_set I2C0_IRQHandler, Default_Handler
|
||||
|
||||
.weak GPIO_ODD_IRQHandler
|
||||
.thumb_set GPIO_ODD_IRQHandler, Default_Handler
|
||||
|
||||
.weak TIMER1_IRQHandler
|
||||
.thumb_set TIMER1_IRQHandler, Default_Handler
|
||||
|
||||
.weak TIMER2_IRQHandler
|
||||
.thumb_set TIMER2_IRQHandler, Default_Handler
|
||||
|
||||
.weak USART1_RX_IRQHandler
|
||||
.thumb_set USART1_RX_IRQHandler, Default_Handler
|
||||
|
||||
.weak USART1_TX_IRQHandler
|
||||
.thumb_set USART1_TX_IRQHandler, Default_Handler
|
||||
|
||||
.weak USART2_RX_IRQHandler
|
||||
.thumb_set USART2_RX_IRQHandler, Default_Handler
|
||||
|
||||
.weak USART2_TX_IRQHandler
|
||||
.thumb_set USART2_TX_IRQHandler, Default_Handler
|
||||
|
||||
.weak UART0_RX_IRQHandler
|
||||
.thumb_set UART0_RX_IRQHandler, Default_Handler
|
||||
|
||||
.weak UART0_TX_IRQHandler
|
||||
.thumb_set UART0_TX_IRQHandler, Default_Handler
|
||||
|
||||
.weak LEUART0_IRQHandler
|
||||
.thumb_set LEUART0_IRQHandler, Default_Handler
|
||||
|
||||
.weak LEUART1_IRQHandler
|
||||
.thumb_set LEUART1_IRQHandler, Default_Handler
|
||||
|
||||
.weak LETIMER0_IRQHandler
|
||||
.thumb_set LETIMER0_IRQHandler, Default_Handler
|
||||
|
||||
.weak PCNT0_IRQHandler
|
||||
.thumb_set PCNT0_IRQHandler, Default_Handler
|
||||
|
||||
.weak PCNT1_IRQHandler
|
||||
.thumb_set PCNT1_IRQHandler, Default_Handler
|
||||
|
||||
.weak PCNT2_IRQHandler
|
||||
.thumb_set PCNT2_IRQHandler, Default_Handler
|
||||
|
||||
.weak RTC_IRQHandler
|
||||
.thumb_set RTC_IRQHandler, Default_Handler
|
||||
|
||||
.weak CMU_IRQHandler
|
||||
.thumb_set CMU_IRQHandler, Default_Handler
|
||||
|
||||
.weak VCMP_IRQHandler
|
||||
.thumb_set VCMP_IRQHandler, Default_Handler
|
||||
|
||||
.weak LCD_IRQHandler
|
||||
.thumb_set LCD_IRQHandler, Default_Handler
|
||||
|
||||
.weak MSC_IRQHandler
|
||||
.thumb_set MSC_IRQHandler, Default_Handler
|
||||
|
||||
.weak AES_IRQHandler
|
||||
.thumb_set AES_IRQHandler, Default_Handler
|
||||
|
||||
/******************************************************************//**
|
||||
* @}
|
||||
*********************************************************************/
|
||||
Reference in New Issue
Block a user