Hello Pascal, Here's memory footprint for USB-related modules: Module: sf_el_ux_comms Cat: Framework Dir: synergy\ssp\src\framework\sf_el_ux_comms Section sizes: Code in Flash: 1208 bytes Code in RAM: 0 bytes Constants: 66 bytes Initialized variables: 245 bytes Uninitialized variables: 32 bytes Stack: 0 bytes Module: sf_el_ux Cat: Framework Dir: synergy\ssp\src\framework\sf_el_ux Section sizes: Code in Flash: 9064 bytes Code in RAM: 0 bytes Constants: 0 bytes Initialized variables: 0 bytes Uninitialized variables: 0 bytes Stack: 0 bytes Module: ux_device_class_cdc_acm Cat: Framework Dir: synergy\ssp\src\framework\el\ux_device_class_cdc_acm Section sizes: Code in Flash: 760 bytes Code in RAM: 0 bytes Constants: 65 bytes Initialized variables: 8 bytes Uninitialized variables: 0 bytes Stack: 0 bytes Module: ux Cat: Framework Dir: synergy\ssp\src\framework\el\ux Section sizes: Code in Flash: 4940 bytes Code in RAM: 0 bytes Constants: 39 bytes Initialized variables: 60 bytes Uninitialized variables: 16 bytes Stack: 0 bytes I can also see around 20k of flash being allocated for GCC library, but this isn't strictly to do with USB. Regards
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