.external F_SPICMD_ReadAWord;//intput: r1 addl r2 addh ouput r1;
.external F_SPICMD_ReadAByte;//intput: r1 addl r2 addh ouput r1;
.external F_SPICMD_WriteAWord;//input : r1 addl r2 addh r3 data
.external F_SPICMD_ReadAData; //input : r1 addl r2 addh r3 bit count
                             //output: r1 data
.external F_SPICMD_ReadStatus;
                             //output: r1 data
.external F_SPI_Initial;
.external F_SPICMD_EraseSector;
                             //input : r1 addl r2 addh
.external F_SPICMD_EraseChip;
.external F_SPICMD_ClearStatus;
.external F_SPI_DelayNms;
.external F_SP_SPICMD_WriteEnable;

                            //input :push data
.external F_SPICMD_ReadBuffer //input : r1 buffer r2 count r3 addl r4 addh;

.external F_SPICMD_SetStartAddress;//R3,R4 Address
.external F_SPICMD_GetNextByte;    //R2 DataOut
.external F_SPICMD_GetNextWord;    //R2 DataOut
.external F_SPICMD_SetEndSign;     //