Use bossac command line with samd21

Hi all,

I'm trying to use bossac in command line to upload bin file into my samd21. So I'm able to upload bin file but bossac erase everytimes EEPROM and I don't want to erase EEPROM. I've tried to remove -e, --erase erase the entire flash option but it's doesn't change everytime my board reboot after upload I loose everything in my EEPROM.
Is it possible to use bossac to upload bin file and don't erase EEPROM?
For EEprom I used FlashAsEEPROMlibrary and to upload my bin here is my command line
./bossac -i -d --port=tty.usbmodem.14001 -U true -i -w -v my_bin.bin -R

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