打印二进制 printf

//

#if 0
  char s[20];
  itoa(USBx_DEVICE->DAINT, s, 2);
  printf("USBx_DEVICE->DAINT     %s    0x%x\r\n", s,USBx_DEVICE->DAINT);

  itoa(USBx_DEVICE->DAINTMSK,s,2);
  printf("%USBx_DEVICE->DAINTMSK  %s    0x%x\r\n", s,USBx_DEVICE->DAINTMSK);

  itoa(tmpreg, s, 2);
  printf("%tmpreg                 %s    0x%x\r\n\r\n", s,tmpreg);
#endif