add files from nrf52832 bootloader project
This commit is contained in:
		@@ -0,0 +1,60 @@
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		||||
/* Copyright (c) 2015 Nordic Semiconductor. All Rights Reserved.
 | 
			
		||||
 *
 | 
			
		||||
 * The information contained herein is property of Nordic Semiconductor ASA.
 | 
			
		||||
 * Terms and conditions of usage are described in detail in NORDIC
 | 
			
		||||
 * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
 | 
			
		||||
 *
 | 
			
		||||
 * Licensees are granted free, non-transferable use of the information. NO
 | 
			
		||||
 * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
 | 
			
		||||
 * the file.
 | 
			
		||||
 *
 | 
			
		||||
 */
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		||||
#ifndef HARFAULT_H__
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		||||
#define HARFAULT_H__
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		||||
#include <stdint.h>
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		||||
#include <stddef.h>
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		||||
/**
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		||||
 * @defgroup hardfault_default HardFault exception
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		||||
 * @{
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		||||
 * @brief Default HardFault exception implementation.
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		||||
 * @ingroup app_common
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		||||
 */
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		||||
/**
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		||||
 * @brief Contents of the stack.
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		||||
 *
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 * This structure is used to re-create the stack layout after a HardFault exception was raised.
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		||||
 */
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typedef struct HardFault_stack
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		||||
{
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    uint32_t r0;  ///< R0 register.
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    uint32_t r1;  ///< R1 register.
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		||||
    uint32_t r2;  ///< R2 register.
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		||||
    uint32_t r3;  ///< R3 register.
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		||||
    uint32_t r12; ///< R12 register.
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		||||
    uint32_t lr;  ///< Link register.
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		||||
    uint32_t pc;  ///< Program counter.
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		||||
    uint32_t psr; ///< Program status register.
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}HardFault_stack_t;
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		||||
/**
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 * @brief Function for processing HardFault exceptions.
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		||||
 *
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		||||
 * An application that needs to process HardFault exceptions should provide an implementation of this function.
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		||||
 * It will be called from the HardFault handler.
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		||||
 * If no implementation is provided, the library uses a default one, which just restarts the MCU.
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		||||
 *
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		||||
 * @note If the DEBUG_NRF macro is defined, the software breakpoint is set just before the call 
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		||||
 *       to this function.
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		||||
 *
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		||||
 * @param p_stack Pointer to the stack bottom.
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		||||
 *                This pointer might be NULL if the HardFault was called when the main stack was
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		||||
 *                the active stack and a stack overrun is detected.
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		||||
 *                In such a situation, the stack pointer is reinitialized to the default position,
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 *                and the stack content is lost.
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		||||
 */
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void HardFault_process(HardFault_stack_t *p_stack);
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/** @} */
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#endif /* HARFAULT_H__ */
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@@ -0,0 +1,47 @@
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		||||
/* Copyright (c) 2015 Nordic Semiconductor. All Rights Reserved.
 | 
			
		||||
 *
 | 
			
		||||
 * The information contained herein is property of Nordic Semiconductor ASA.
 | 
			
		||||
 * Terms and conditions of usage are described in detail in NORDIC
 | 
			
		||||
 * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
 | 
			
		||||
 *
 | 
			
		||||
 * Licensees are granted free, non-transferable use of the information. NO
 | 
			
		||||
 * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
 | 
			
		||||
 * the file.
 | 
			
		||||
 *
 | 
			
		||||
 */
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		||||
#include "hardfault.h"
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#include "nrf.h"
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#include "compiler_abstraction.h"
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#include "nordic_common.h"
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#ifdef SOFTDEVICE_PRESENT
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#include "nrf_soc.h"
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#endif
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#if defined(DEBUG_NRF)
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/**
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		||||
 * @brief Pointer to the last received stack pointer.
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		||||
 *
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		||||
 * This pointer is set in the debug version of the HardFault handler.
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 * It helps to debug HardFault reasons.
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		||||
 */
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volatile HardFault_stack_t *HardFault_p_stack;
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#endif
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/*lint -save -e14 */
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		||||
__WEAK void HardFault_process(HardFault_stack_t *p_stack)
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		||||
{
 | 
			
		||||
    // Restart the system by default
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		||||
    NVIC_SystemReset();
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		||||
}
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		||||
/*lint -restore */
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		||||
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		||||
void HardFault_c_handler( uint32_t *p_stack_address )
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		||||
{
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#if defined(DEBUG_NRF)
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		||||
    HardFault_p_stack = (HardFault_stack_t*)p_stack_address;
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		||||
    /* Generate breakpoint if debugger is connected */
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		||||
    __BKPT(0);
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		||||
#endif
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		||||
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		||||
    HardFault_process((HardFault_stack_t*)p_stack_address);
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		||||
}
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@@ -0,0 +1,52 @@
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		||||
/* Copyright (c) 2015 Nordic Semiconductor. All Rights Reserved.
 | 
			
		||||
 *
 | 
			
		||||
 * The information contained herein is property of Nordic Semiconductor ASA.
 | 
			
		||||
 * Terms and conditions of usage are described in detail in NORDIC
 | 
			
		||||
 * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
 | 
			
		||||
 *
 | 
			
		||||
 * Licensees are granted free, non-transferable use of the information. NO
 | 
			
		||||
 * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
 | 
			
		||||
 * the file.
 | 
			
		||||
 *
 | 
			
		||||
 */
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		||||
#include <stdint.h>
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		||||
void HardFault_Handler(void) __attribute__(( naked ));
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void HardFault_Handler(void)
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		||||
{
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		||||
    __asm volatile(
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    "   .syntax unified                        \n"
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		||||
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		||||
    "   ldr   r0, =0xFFFFFFFD                  \n"
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		||||
    "   cmp   r0, lr                           \n"
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		||||
    "   bne   HardFault_Handler_ChooseMSP      \n"
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		||||
    /* Reading PSP into R0 */
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		||||
    "   mrs   r0, PSP                          \n"
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		||||
    "   b     HardFault_Handler_Continue       \n"
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		||||
    "HardFault_Handler_ChooseMSP:              \n"
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		||||
    /* Reading MSP into R0 */
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		||||
    "   mrs   r0, MSP                          \n"
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		||||
    /* -----------------------------------------------------------------
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		||||
     * If we have selected MSP check if we may use stack safetly.
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		||||
     * If not - reset the stack to the initial value. */
 | 
			
		||||
    "   ldr   r1, =__StackTop                  \n"
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		||||
    "   ldr   r2, =__StackLimit                \n"
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		||||
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		||||
    /* MSP is in the range of <__StackTop, __StackLimit) */
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		||||
    "   cmp   r0, r1                           \n"
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		||||
    "   bhi   HardFault_MoveSP                 \n"
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		||||
    "   cmp   r0, r2                           \n"
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		||||
    "   bhi   HardFault_Handler_Continue       \n"
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		||||
    /* ----------------------------------------------------------------- */
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		||||
    "HardFault_MoveSP:                         \n"
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		||||
    "   mov   SP, r1                           \n"
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		||||
    "   movs  r0, #0                           \n"
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		||||
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		||||
    "HardFault_Handler_Continue:               \n"
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		||||
    "   ldr r3, =HardFault_c_handler           \n"
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		||||
    "   bx r3                                  \n"
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		||||
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		||||
    "   .align                                 \n"
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		||||
    );
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		||||
}
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@@ -0,0 +1,65 @@
 | 
			
		||||
/* Copyright (c) 2015 Nordic Semiconductor. All Rights Reserved.
 | 
			
		||||
 *
 | 
			
		||||
 * The information contained herein is property of Nordic Semiconductor ASA.
 | 
			
		||||
 * Terms and conditions of usage are described in detail in NORDIC
 | 
			
		||||
 * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
 | 
			
		||||
 *
 | 
			
		||||
 * Licensees are granted free, non-transferable use of the information. NO
 | 
			
		||||
 * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
 | 
			
		||||
 * the file.
 | 
			
		||||
 *
 | 
			
		||||
 */
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		||||
#include <stdint.h>
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		||||
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		||||
#pragma section = "CSTACK"
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extern void HardFault_c_handler( uint32_t * );
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		||||
__stackless void HardFault_Handler(void);
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		||||
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		||||
__stackless void HardFault_Handler(void)
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		||||
{
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		||||
    __asm volatile(
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		||||
    "   ldr   r0, 100f                         \n"
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		||||
    "   cmp   r0, lr                           \n"
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		||||
    "   bne   1f                               \n"
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		||||
    /* Reading PSP into R0 */
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		||||
    "   mrs   r0, PSP                          \n"
 | 
			
		||||
    "   b     3f                               \n"
 | 
			
		||||
    "1:                                        \n"
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		||||
    /* Reading MSP into R0 */
 | 
			
		||||
    "   mrs   r0, MSP                          \n"
 | 
			
		||||
    /* -----------------------------------------------------------------
 | 
			
		||||
     * If we have selected MSP check if we may use stack safetly.
 | 
			
		||||
     * If not - reset the stack to the initial value. */
 | 
			
		||||
    "   ldr   r1, 101f                         \n"
 | 
			
		||||
    "   ldr   r2, 102f                         \n"
 | 
			
		||||
 | 
			
		||||
    /* MSP is in the range of <__StackTop, __StackLimit) */
 | 
			
		||||
    "   cmp   r0, r1                           \n"
 | 
			
		||||
    "   bhi   2f                               \n"
 | 
			
		||||
    "   cmp   r0, r2                           \n"
 | 
			
		||||
    "   bhi   3f                               \n"
 | 
			
		||||
    /* ----------------------------------------------------------------- */
 | 
			
		||||
    "2:                                        \n"
 | 
			
		||||
    "   mov   SP, r1                           \n"
 | 
			
		||||
    "   movs  r0, #0                           \n"
 | 
			
		||||
 | 
			
		||||
    "3:                                        \n"
 | 
			
		||||
    "   ldr r3, 103f                           \n"
 | 
			
		||||
    "   bx r3                                  \n"
 | 
			
		||||
 | 
			
		||||
    "100:                                      \n"
 | 
			
		||||
    "   DC32 0xFFFFFFFD                        \n"
 | 
			
		||||
    "101:                                      \n"
 | 
			
		||||
    "   DC32 %c0                               \n"
 | 
			
		||||
    "102:                                      \n"
 | 
			
		||||
    "   DC32 %c1                               \n"
 | 
			
		||||
    "103:                                      \n"
 | 
			
		||||
    "   DC32 %c2                               \n"
 | 
			
		||||
    : /* Outputs */
 | 
			
		||||
    : /* Inputs */
 | 
			
		||||
    "i"(__section_end("CSTACK")),
 | 
			
		||||
    "i"(__section_begin("CSTACK")),
 | 
			
		||||
    "i"(&HardFault_c_handler)
 | 
			
		||||
    );
 | 
			
		||||
}
 | 
			
		||||
@@ -0,0 +1,61 @@
 | 
			
		||||
/* Copyright (c) 2015 Nordic Semiconductor. All Rights Reserved.
 | 
			
		||||
 *
 | 
			
		||||
 * The information contained herein is property of Nordic Semiconductor ASA.
 | 
			
		||||
 * Terms and conditions of usage are described in detail in NORDIC
 | 
			
		||||
 * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
 | 
			
		||||
 *
 | 
			
		||||
 * Licensees are granted free, non-transferable use of the information. NO
 | 
			
		||||
 * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
 | 
			
		||||
 * the file.
 | 
			
		||||
 *
 | 
			
		||||
 */
 | 
			
		||||
#include <stdint.h>
 | 
			
		||||
 | 
			
		||||
//lint -save -e27 -e10 -e19 -e40
 | 
			
		||||
extern char STACK$$Base;
 | 
			
		||||
 | 
			
		||||
/* This variable should be static but then it cannot be used in assembly code below.
 | 
			
		||||
 * The problem here is that the address of the section can be archived by $$ operator
 | 
			
		||||
 * that is not allowed in assembly code. */
 | 
			
		||||
char const * HardFault_Handler_stack_bottom = &STACK$$Base;
 | 
			
		||||
//lint -restore
 | 
			
		||||
 | 
			
		||||
__asm void HardFault_Handler(void)
 | 
			
		||||
{
 | 
			
		||||
    PRESERVE8
 | 
			
		||||
    EXTERN HardFault_c_handler
 | 
			
		||||
    EXTERN __initial_sp
 | 
			
		||||
    EXTERN HardFault_Handler_stack_bottom
 | 
			
		||||
 | 
			
		||||
    ldr   r0, =0xFFFFFFFD
 | 
			
		||||
    cmp   r0, lr
 | 
			
		||||
    bne   HardFault_Handler_ChooseMSP
 | 
			
		||||
    /* Reading PSP into R0 */
 | 
			
		||||
    mrs   r0, PSP
 | 
			
		||||
    b     HardFault_Handler_Continue
 | 
			
		||||
HardFault_Handler_ChooseMSP
 | 
			
		||||
    /* Reading MSP into R0 */
 | 
			
		||||
    mrs   r0, MSP
 | 
			
		||||
    /* -----------------------------------------------------------------
 | 
			
		||||
     * If we have selected MSP, check if we may use stack safely.
 | 
			
		||||
     * If not - reset the stack to the initial value. */
 | 
			
		||||
    ldr   r1, =__initial_sp
 | 
			
		||||
    ldr   r2, =HardFault_Handler_stack_bottom
 | 
			
		||||
    ldr   r2, [r2]
 | 
			
		||||
 | 
			
		||||
    /* MSP is in the range of <__StackTop, __StackLimit) */
 | 
			
		||||
    cmp   r0, r1
 | 
			
		||||
    bhi   HardFault_MoveSP
 | 
			
		||||
    cmp   r0, r2
 | 
			
		||||
    bhi   HardFault_Handler_Continue
 | 
			
		||||
    /* ----------------------------------------------------------------- */
 | 
			
		||||
HardFault_MoveSP
 | 
			
		||||
    mov   SP, r1
 | 
			
		||||
    movs  r0, #0
 | 
			
		||||
 | 
			
		||||
HardFault_Handler_Continue
 | 
			
		||||
    ldr r3, =HardFault_c_handler
 | 
			
		||||
    bx r3
 | 
			
		||||
 | 
			
		||||
    ALIGN
 | 
			
		||||
}
 | 
			
		||||
@@ -0,0 +1,49 @@
 | 
			
		||||
/* Copyright (c) 2015 Nordic Semiconductor. All Rights Reserved.
 | 
			
		||||
 *
 | 
			
		||||
 * The information contained herein is property of Nordic Semiconductor ASA.
 | 
			
		||||
 * Terms and conditions of usage are described in detail in NORDIC
 | 
			
		||||
 * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
 | 
			
		||||
 *
 | 
			
		||||
 * Licensees are granted free, non-transferable use of the information. NO
 | 
			
		||||
 * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
 | 
			
		||||
 * the file.
 | 
			
		||||
 *
 | 
			
		||||
 */
 | 
			
		||||
#include <stdint.h>
 | 
			
		||||
 | 
			
		||||
void HardFault_Handler(void) __attribute__(( naked ));
 | 
			
		||||
 | 
			
		||||
void HardFault_Handler(void)
 | 
			
		||||
{
 | 
			
		||||
    __asm volatile(
 | 
			
		||||
    "   ldr r3, =HardFault_c_handler            \n"
 | 
			
		||||
    "   tst lr, #4                              \n"
 | 
			
		||||
 | 
			
		||||
    /* PSP is quite simple and does not require additional handler */
 | 
			
		||||
    "   itt ne                                  \n"
 | 
			
		||||
    "   mrsne r0, psp                           \n"
 | 
			
		||||
    /* Jump to the handler, do not store LR - returning from handler just exits exception */
 | 
			
		||||
    "   bxne  r3                                \n"
 | 
			
		||||
 | 
			
		||||
    /* Processing MSP requires stack checking */
 | 
			
		||||
    "   mrs r0, msp                             \n"
 | 
			
		||||
 | 
			
		||||
    "   ldr   r1, =__StackTop                   \n"
 | 
			
		||||
    "   ldr   r2, =__StackLimit                 \n"
 | 
			
		||||
 | 
			
		||||
    /* MSP is in the range of <__StackTop, __StackLimit) */
 | 
			
		||||
    "   cmp   r0, r1                            \n"
 | 
			
		||||
    "   bhi   HardFault_MoveSP                  \n"
 | 
			
		||||
    "   cmp   r0, r2                            \n"
 | 
			
		||||
    "   bhi   HardFault_Handler_Continue        \n"
 | 
			
		||||
 | 
			
		||||
    "HardFault_MoveSP:                          \n"
 | 
			
		||||
    "   mov   sp, r1                            \n"
 | 
			
		||||
    "   mov   r0, #0                            \n"
 | 
			
		||||
 | 
			
		||||
    "HardFault_Handler_Continue:                \n"
 | 
			
		||||
    "   bx r3                                   \n"
 | 
			
		||||
 | 
			
		||||
    "   .align                                  \n"
 | 
			
		||||
    );
 | 
			
		||||
}
 | 
			
		||||
@@ -0,0 +1,64 @@
 | 
			
		||||
/* Copyright (c) 2015 Nordic Semiconductor. All Rights Reserved.
 | 
			
		||||
 *
 | 
			
		||||
 * The information contained herein is property of Nordic Semiconductor ASA.
 | 
			
		||||
 * Terms and conditions of usage are described in detail in NORDIC
 | 
			
		||||
 * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
 | 
			
		||||
 *
 | 
			
		||||
 * Licensees are granted free, non-transferable use of the information. NO
 | 
			
		||||
 * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
 | 
			
		||||
 * the file.
 | 
			
		||||
 *
 | 
			
		||||
 */
 | 
			
		||||
#include <stdint.h>
 | 
			
		||||
 | 
			
		||||
#pragma section = "CSTACK"
 | 
			
		||||
extern void HardFault_c_handler( uint32_t * );
 | 
			
		||||
 | 
			
		||||
__stackless void HardFault_Handler(void);
 | 
			
		||||
 | 
			
		||||
__stackless void HardFault_Handler(void)
 | 
			
		||||
{
 | 
			
		||||
    __asm volatile(
 | 
			
		||||
    "   ldr.n r3, 103f                          \n"
 | 
			
		||||
    "   tst   lr, #4                            \n"
 | 
			
		||||
 | 
			
		||||
    /* PSP is quite simple and does not require additional handler */
 | 
			
		||||
    "   itt   ne                                \n"
 | 
			
		||||
    "   mrsne r0, psp                           \n"
 | 
			
		||||
    /* Jump to the handler, do not store LR - returning from handler just exits exception */
 | 
			
		||||
    "   bxne  r3                                \n"
 | 
			
		||||
 | 
			
		||||
    /* Processing MSP requires stack checking */
 | 
			
		||||
    "   mrs r0, msp                             \n"
 | 
			
		||||
 | 
			
		||||
    "   ldr.n r1, 101f                          \n"
 | 
			
		||||
    "   ldr.n r2, 102f                          \n"
 | 
			
		||||
 | 
			
		||||
    /* MSP is in the range of <__StackTop, __StackLimit) */
 | 
			
		||||
    "   cmp   r0, r1                            \n"
 | 
			
		||||
    "   bhi.n 1f                                \n"
 | 
			
		||||
    "   cmp   r0, r2                            \n"
 | 
			
		||||
    "   bhi.n 2f                                \n"
 | 
			
		||||
 | 
			
		||||
    "1:                                         \n"
 | 
			
		||||
    "   mov   sp, r1                            \n"
 | 
			
		||||
    "   mov   r0, #0                            \n"
 | 
			
		||||
 | 
			
		||||
    "2:                                         \n"
 | 
			
		||||
    "   bx r3                                   \n"
 | 
			
		||||
    /* Data alignment if required */
 | 
			
		||||
    "   nop                                     \n"
 | 
			
		||||
 | 
			
		||||
    "101:                                       \n"
 | 
			
		||||
    "   DC32 %c0                                \n"
 | 
			
		||||
    "102:                                       \n"
 | 
			
		||||
    "   DC32 %c1                                \n"
 | 
			
		||||
    "103:                                       \n"
 | 
			
		||||
    "   DC32 %c2                                \n"
 | 
			
		||||
    : /* Outputs */
 | 
			
		||||
    : /* Inputs */
 | 
			
		||||
    "i"(__section_end("CSTACK")),
 | 
			
		||||
    "i"(__section_begin("CSTACK")),
 | 
			
		||||
    "i"(&HardFault_c_handler)
 | 
			
		||||
    );
 | 
			
		||||
}
 | 
			
		||||
@@ -0,0 +1,60 @@
 | 
			
		||||
/* Copyright (c) 2015 Nordic Semiconductor. All Rights Reserved.
 | 
			
		||||
 *
 | 
			
		||||
 * The information contained herein is property of Nordic Semiconductor ASA.
 | 
			
		||||
 * Terms and conditions of usage are described in detail in NORDIC
 | 
			
		||||
 * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
 | 
			
		||||
 *
 | 
			
		||||
 * Licensees are granted free, non-transferable use of the information. NO
 | 
			
		||||
 * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
 | 
			
		||||
 * the file.
 | 
			
		||||
 *
 | 
			
		||||
 */
 | 
			
		||||
#include <stdint.h>
 | 
			
		||||
 | 
			
		||||
//lint -save -e27 -e10 -e19 -e40
 | 
			
		||||
extern char STACK$$Base;
 | 
			
		||||
 | 
			
		||||
/* This variable should be static but then it cannot be used in assembly code below.
 | 
			
		||||
 * The problem here is that the address of the section can be archived by $$ operator
 | 
			
		||||
 * that is not allowed in assembly code. */
 | 
			
		||||
char const * HardFault_Handler_stack_bottom = &STACK$$Base;
 | 
			
		||||
//lint -restore
 | 
			
		||||
 | 
			
		||||
__asm void HardFault_Handler(void)
 | 
			
		||||
{
 | 
			
		||||
    PRESERVE8
 | 
			
		||||
    EXTERN HardFault_c_handler
 | 
			
		||||
    EXTERN __initial_sp
 | 
			
		||||
    EXTERN HardFault_Handler_stack_bottom
 | 
			
		||||
 | 
			
		||||
    ldr r3, =HardFault_c_handler
 | 
			
		||||
    tst lr, #4
 | 
			
		||||
 | 
			
		||||
    /* PSP is quite simple and does not require additional handler */
 | 
			
		||||
    itt ne
 | 
			
		||||
    mrsne r0, psp
 | 
			
		||||
    /* Jump to the handler, do not store LR - returning from handler just exits exception */
 | 
			
		||||
    bxne  r3
 | 
			
		||||
 | 
			
		||||
    /* Processing MSP requires stack checking */
 | 
			
		||||
    mrs r0, msp
 | 
			
		||||
 | 
			
		||||
    ldr   r1, =__initial_sp
 | 
			
		||||
    ldr   r2, =HardFault_Handler_stack_bottom
 | 
			
		||||
    ldr   r2, [r2]
 | 
			
		||||
 | 
			
		||||
    /* MSP is in the range of <__StackTop, __StackLimit) */
 | 
			
		||||
    cmp   r0, r1
 | 
			
		||||
    bhi   HardFault_MoveSP
 | 
			
		||||
    cmp   r0, r2
 | 
			
		||||
    bhi   HardFault_Handler_Continue
 | 
			
		||||
 | 
			
		||||
HardFault_MoveSP
 | 
			
		||||
    mov   sp, r1
 | 
			
		||||
    mov   r0, #0
 | 
			
		||||
 | 
			
		||||
HardFault_Handler_Continue
 | 
			
		||||
    bx r3
 | 
			
		||||
 | 
			
		||||
    ALIGN
 | 
			
		||||
}
 | 
			
		||||
		Reference in New Issue
	
	Block a user