我已经从代码中实现了 Blackfin BF561 coreB FreeRTOS：
http://www.freertos.org/index.html?http://interactive.freertos.org/forums/79366-analog-devices
我使用 gcc 转换为裸机作为 elf 可执行文件。
我很接近，但我有一个我无法弄清楚的运行时错误。当调度程序启动并尝试触发第一个任务时，内存指针会丢失并且它不会启动第一个堆栈，而是在第一个任务内启动一个函数并在退出函数时丢失。
这是相应的调试日志：
COREB: end setup LED
COREB: handler declared
COREB: Initialise New TCB:NewTCB address: 3d01000
COREB: TopofStask: 0, pxTopOfStack = 3d0263c
COREB: pxTaskCode =3c033a0, pvParameters = 0
COREB: returned pxNewTCB->pxTopOfStack = 3d02588
COREB: task created:
COREB: top of stack: 3d02588
COREB: GenericListItem: 0
COREB: Event ListItem: 9
COREB: Priority: 1
COREB: start of stack: 3d02000
COREB: Task Name: BootTas
COREB: TCB number: 0
COREB: Task Tag: 0
COREB: Add the idle task at the lowest priority
COREB: Initialise New TCB:NewTCB address: 3d03000
COREB: TopofStask: 0, pxTopOfStack = 3d0431c
COREB: pxTaskCode =3c0295c, pvParameters = 0
COREB: returned pxNewTCB->pxTopOfStack = 3d04268
COREB: task created:
COREB: top of stack: 3d04268
COREB: GenericListItem: 0
COREB: Event ListItem: a
COREB: Priority: 0
COREB: start of stack: 3d04000
COREB: Task Name: IDLE
COREB: TCB number: 1
COREB: Task Tag: 0
COREB: end Add the idle task at the lowest priority
COREB: if xReturn == 1, and xReturn = 1
COREB: before disable interupt
COREB: after disable interupt
COREB: before xPortStartScheduler
COREB: start xPortStartScheduler fn before set core timer
COREB: after ContextSwitch interupt flag
COREB: before prvSetupTimerInterrupt
COREB: after prvSetupTimerInterupt
COREB: Task Switch context called
COREB: The scheduler is running
COREB: trace switched out TCB:ff700bf8
COREB: name of switch out task:efore xPortStartScheduler
COREB: before Task first check for stack overflow
COREB: Task first check for stack overflow called
COREB: Task second check for stack overflow called
COREB: before call get owner of next entry
COREB: get owner of next entry:
COREB: current TCB 3d01000
COREB: pxReadyTasksLists[ uxTopReadyPriority ] = 1
COREB: TCB content:
COREB: top of stack: 3d02588
COREB: GenericListItem: 0
COREB: Event ListItem: 9
COREB: Priority: 1
COREB: start of stack: 3d02000
COREB: Task Name: BootTas
COREB: TCB number: 0
COREB: Task Tag: 0
COREB: trace switched in:BootTas
COREB: write trace to buffer
COREB: task increment tick: 1
COREB: end of app init
COREB: execption 2b addr ff700be4
COREB: coreb dump stack
COREB: found fp: ff700b64
这是我在模拟设备论坛上开始的讨论：