TMS320F28379D: CAN BOOT mode and CAN Flash Kernal

Hi everyone, 

1.)  I modified can_flash_kernel code for tms320f28379d using DCAN_Boot.c source code which in C:\ti\c2000\C2000Ware_1_00_05_00\libraries\boot_rom\f2837xd\revB\rom_sources\F2837x_bootROM\cpu01-bootROM\source. At the top of the code there is a phase like this: "DCAN boot loader functions for Soprano". But I use LaunchXL F283779d. May it be a problem ?

2.) For GetWordData() function there are two different logic like below. Which one should I use ? 

In Can_Boot for f2806x GetWordData function like below: 

Uint16 CAN_GetWordData()
{
Uint16 wordData;
Uint16 byteData;

wordData = 0x0000;
byteData = 0x0000;

// Fetch the LSB
while(ECanaRegs.CANRMP.all == 0) { }
wordData = (Uint16) ECanaMboxes.MBOX1.MDL.byte.BYTE0; // LS byte

// Fetch the MSB
byteData = (Uint16)ECanaMboxes.MBOX1.MDL.byte.BYTE1; // MS byte

// form the wordData from the MSB:LSB
wordData |= (byteData << 8);

/* Clear all RMPn bits */
ECanaRegs.CANRMP.all = 0xFFFFFFFF;

return wordData;
}

In DCAN_Boot for f28379d GetWordData() function like below: 

Uint16 DCAN_GetWordData()
{
//Wait for a new CAN message to be received in mailbox 1
while (DcanaRegs.CAN_NDAT_21 != 0x1) {;}

//Transfer the message from IF1
DcanaRegs.CAN_IF1CMD.all = 0x00070001;
while (DcanaRegs.CAN_IF1CMD.all & 0x8000) {;}
return (Uint16)DcanaRegs.CAN_IF1DATA.all;

}

Also,  GetWordData function which in SCI_Boot for f28379d similar with  GetWordData function which in Can_Boot.

Which one should I use ? 

Best Regards.