“Starting with V2.0, Micronucleus is going to use an interrupt free modification of the software USB implementation V-USB. This provides significant benefits for the bootloader, as it is not necessary anymore to patch the interrupt vector of the user program. A surprising side effect was a speed up of the V-USB data transmission, which may also be helpful in other applications. Here, I try to give a rough overview about the meandering work that led to this achievement.”
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