Update USB implementation, fix 64 bytes bug #45
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Sigh. That's awful. |
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This is a bugfix for a specific issue when sending exactly 64 bytes to the USB CDC. It seems the bytes were stuck in a buffer which was only released when reaching 256 bytes. I can upload a test case that demonstrates this if needed.
Updating
SAMD21_USBDevice.hto the version from the official Arduino Core fixed the issue.