Cortex-M3 跳转到指定bin执行

 跳转前指定sp和msp：

#if defined(__GNUC__)
__attribute__(( naked )) static void set_sp(unsigned long addr)
{
    __asm volatile (
        "mov    sp, r0    \n"
        "bx        lr        \n"
    );
}

__attribute__(( naked )) static void set_msp(void)
{
    __asm volatile (
        "mrs    r0, control    \n"
        "bic    r0, #2        \n"
        "msr    control, r0    \n"
        "bx        lr            \n"
    );
}
#else
__asm static void set_sp(unsigned long addr)
{
    mov    sp, r0
    bx    lr
}

__asm static void set_msp(void)
{
    mrs    r0, control
    bic    r0, #2
    msr    control, r0
    bx  lr
}
#endif

跳转到指定地址：

 

typedef int (*jump_fun)( void );

void jump( unsigned int addr )
{
    volatile int *ptr = (int *)addr;
    jump_fun jump;

    set_msp();
    set_sp(ptr[0]);
    
    jump = (jump_fun)(ptr[1]);

    jump();
}