CMSIS-DAP v2: send ZLP instead of a dummy byte to terminate OUT transfer #1882
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If length of data for sending was less than DAP packet size but exactly a multiple of USB endpoint maximum packet size a dummy byte (0) was artificially appended to transfer to ensure the transfer termination. This was updated to send zero-length packet instead of a dummy byte.
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RobertRostohar
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Dec 18, 2025
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If length of data for sending was less than DAP packet size but exactly a multiple of USB endpoint maximum packet size a dummy byte (0) was artificially appended to transfer to ensure the transfer termination. This was updated to send zero-length packet instead of a dummy byte.
This PR addresses the issue #1871.