I would use the utaskerSerialBoot project but with usb_application.c (USB task) from utaskerV.4 project instead of usb_loader.c (original USB task in the loader project).
Probably it is easiest to configure the utaskerV1.4 project (you can open both projects in two simulators) for USB-MSD with SD card as reference and then you will know any additional defines necessary for it to be correct in the loader project.
Regards
Mark
Probably it is easiest to configure the utaskerV1.4 project (you can open both projects in two simulators) for USB-MSD with SD card as reference and then you will know any additional defines necessary for it to be correct in the loader project.
Regards
Mark