Cortex-M器件非0x00起始地址SWD调试失败问题咨询

我之前用IAR IDE开发过多款Cortex-M器件，现在在用基于Eclipse的Infineon ModusToolbox开发Cortex-M0+项目。想把应用程序部署在Flash的非0x00地址（后续0x00地址将存放Bootloader），本次设置为0x00001000，已经修改链接脚本匹配该配置。从映射文件来看，复位向量已正确映射到新的Flash起始地址，但通过SWD进行调试时却失败了。

厂商表示ARM核器件无法从非0x00地址启动调试，但我99%确信此前完成过相同操作。我是不是记错了？程序计数器初始值不应该始终被设置为复位向量的地址吗？还是需要额外的调试指令？

链接脚本 cy8c4xx9.ld #

//** file cy8c4xx9.ld
* \version 1.10.1
*****************************************************************/

OUTPUT_FORMAT ("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
SEARCH_DIR(.)
GROUP(-lgcc -lc -lnosys)

/*--------------------- Flash Configuration ----------------------------------
; <h> Flash Configuration
;   <o0> Flash Base Address <0x0-0xFFFFFFFF:8>
;   <o1> Flash Size (in Bytes) <0x0-0xFFFFFFFF:8>
; </h>
 -----------------------------------------------------------------------------*/
__FLASH_START = 0x00000000;
__FLASH_SIZE =  0x00060000;

/*--------------------- Embedded RAM Configuration ---------------------------
; <h> RAM Configuration
;   <o0> RAM Base Address    <0x0-0xFFFFFFFF:8>
;   <o1> RAM Size (in Bytes) <0x0-0xFFFFFFFF:8>
; </h>
 -----------------------------------------------------------------------------*/
__RAM_START = 0x20000000;
__RAM_SIZE =  0x00008000;

/*--------------------- Stack Configuration ----------------------------------
; <h> Stack Configuration
;   <o0> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
; </h>
 -----------------------------------------------------------------------------*/
__STACK_SIZE = 0x00000400;
__HEAP_SIZE  = 0x00000080;

/* The MEMORY section below describes the location and size of 
blocks of memory in the target.
 * Use this section to specify the memory regions available for allocation.
     */
MEMORY
{
     /* The ram and flash regions control RAM and flash memory allocation.
      *  You can change the memory allocation by editing the 'ram' and 'flash' regions.
  */
  FLASH_Application (rx) : ORIGIN = 0x00001000, LENGTH = 
__FLASH_SIZE - 0x00001000
  RAM   (rwx) : ORIGIN = __RAM_START,   LENGTH = __RAM_SIZE
  flash_boot_meta   (rw)  : ORIGIN = 0x0005FA00, LENGTH = 0x100
}

/*
* DFU SDK specific: aliases regions, so the rest of code does not use
* application specific memory region names
*/
REGION_ALIAS("FLASH", FLASH_Application);

/* DFU SDK specific: sets an app Id */
__cy_app_id = 1;

CY_APPL_ORIGIN                  = 0;
CY_FLASH_ROW_SIZE               = 256;
CY_APPL_NUM                     = 1;
CY_APPL_MAX                     = 1;
CY_METADATA_SIZE                = 64;
CY_APPL_LOADABLE                = 1;
CY_CHECKSUM_EXCLUDE_SIZE        = ALIGN(0, CY_FLASH_ROW_SIZE);
CY_APP_FOR_STACK_AND_COPIER     = 0;

APPL_STACK_SIZE = 0x0c00;
APPL_HEAP_SIZE  = 0x0000;

/* Linker script to place sections and symbol values. Should be used together
 * with other linker script that defines memory regions FLASH and RAM.
 * It references following symbols, which must be defined in code:
 *   Reset_Handler : Entry of reset handler
 *
 * It define ssymbols, which code can use without definition*/

ENTRY(Reset_Handler)

SECTIONS
{
    .cy_app_header :
    {
        KEEP(*(.cy_app_header))
    } > FLASH

    .text :
    {
        . = ALIGN(4);
        KEEP(*(.vectors))
        . = ALIGN(4);
        __end__ = .;

示例代码 #

#include "cy_pdl.h"
#include "cybsp.h"

#define LED_DELAY_MS              (500u)
#define CY_ASSERT_FAILED          (0u)
#define APP_ORIGIN 0x00001000

/*Function Name: main*/

int main(void)
{
    SCB->VTOR = (uint32_t)APP_ORIGIN;

    __set_MSP(*(volatile uint32_t*)APP_ORIGIN);

    cy_rslt_t result;

    /* Initialize the device and board peripherals */
    result = cybsp_init();

    /* Board init failed. Stop program execution */
    if (result != CY_RSLT_SUCCESS)
    {
        CY_ASSERT(CY_ASSERT_FAILED);
    }

    /* Enable global interrupts */
    __enable_irq();

    for(;;)
    {
        /* Toggle the user LED state */
        //Cy_GPIO_Inv(CYBSP_USER_LED_PORT, CYBSP_USER_LED_PIN);

        /* Wait for 0.5 seconds */
        Cy_SysLib_Delay(LED_DELAY_MS);
    }
}

内容的提问来源于stack exchange，提问作者nobby