Sifive freedom-u540 board booting

Archive Freedom U500
1

Hi everybody ,

                    I  am using  freedom-u540 sifive board i want to boot up the board.i have created  bbl.bin inside the work directory using make command. but i want to copy bbl.bin into sd card using dd utility tool . but when i open dd tool inside work directory  bbl.bin file is not showing . so how can i solve this issue.
2

You can try command line dd tool by dd if=bbl.bin of=/dev/sdXX, where sdXX -i name of the target partition on SD card.