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Merge pull request #127 from arduino/hardware-spi-pure-virtual

HardwareSPI needs to be a abstract base class

Martino Facchin committed 5y ago

4bd75df4d7c8f28eb11e1c9d0de6ed542696402f

Committed by GitHub <noreply@github.com> on 11/25/2020, 1:48:48 PM