order of bit structure

Hi,

I am using the TMS570 with CCS6 and Halcogen 4.1.

I have the following bit structure that I am porting from a different processor, and it looks like the order of the bit structure is reversed.  For example, I would expect frameid_out to be bit 0, and pip closed to be bit 13.  But when I toggle pip closed, the 13th bit from the right toggles, not the 13th bit from the left.  I believe the old processor is little endian, and the TMS570 is big endian.

Is there a way to force the bit order?

typedef union FrameIn_Obj
{
   uint32_t   lword;
   struct
    {
      unsigned int  frameid_out     : 1;
      unsigned int  encoder2_id     : 1;
      unsigned int  rlypwr_ok       : 1;
      unsigned int  estop_ok        : 1;
      unsigned int  upperTravLmt    : 1;
      unsigned int  lowerTravLmt    : 1;
      unsigned int  drv_enabled     : 1;
      unsigned int  pwramp_ok       : 1;
      unsigned int  motortmp_ok     : 1;
      unsigned int  topgrip_closed  : 1;
      unsigned int  botgrip_closed  : 1;
      unsigned int  closegrip_req   : 1;
      unsigned int  intrlock_ok     : 1;
      unsigned int  pip_closed      : 1;
      unsigned int  handset_up      : 1;
      unsigned int  handset_dn      : 1;
      unsigned int  clutch_switch   : 1;
      unsigned int  FIBFrameFault   : 1;
      unsigned int  shieldDoorOpen  : 1;
      unsigned int  shieldDoorClosed: 1;
      unsigned int  safeMode        : 1;
      unsigned int  setupMode       : 1;
      unsigned int  FIBWdog         : 1;
      unsigned int  high_clutch     : 1;
    } bits;
} FrameIn_Obj;