VM_DCL_HANDLE spi_handle;
 vm_dcl_spi_mode_t spi_data;
spi_handle = vm_dcl_open(VM_DCL_SPI_PORT1,0);
if(VM_DCL_HANDLE_INVALID==spi_handle) return;
 spi_data.mode = SPI_MODE_DEASSERT;
 spi_data.is_enable = KAL_TRUE;
 vm_dcl_control(spi_handle,VM_DCL_SPI_CONTROL_SET_MODE,(void *)&spi_data);
 //To do something.