litex_term upload demo.bin, but display CRC error.

[Hausenbourne]

My fpga is iCESugar, I flash my muselab_icesugar, it work very well, but when I try to upload demo.bin to my litex, it output:
[LITEX-TERM] Upload to device failed due to data corruption (CRC error)

by the way, i build the demo app as the README as follow:

i just changed the plaform to muselab_icesugar:
python3 -m litex_boards.targets.muselab_icesugar --build --load
litex_bare_metal_demo --build-path=build/muselab_icesugar

Can u deal with my question? thanks for ur professional help, very much.