A: No. There is no memory where the MAC address is stored. So SPEC boards do not come with a MAC address that is set or programmed by the manufacturer.<br/>
When you use the White Rabbit PTP core, it uses the ID of digital 1-wire thermometer available on the SPEC board to generate unique MAC address for each board. There is a specific [WRPTP FAQ entry about MAC addresses(https://www.ohwr.org/project/wr-cores/wikis/Wrpc-faq#mac-addresses).<br/>
Actually, in 2019 the production test system (PTS) has been expanded with the possibility to program a MAC address during production. That address is then stored in the flash eeprom. (April 2020)
Actually, in 2017 the [SPEC production test system (PTS)](https://ohwr.org/project/spec/wikis/Software#production-test-software) has been expanded with the possibility to program a MAC address during production. That address is then stored in the flash eeprom. (April 2020)
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Matthieu Cattin, Erik van der Bij, Grzegorz Daniluk, Federico Vaga - 5 April 2020
Matthieu Cattin, Erik van der Bij, Grzegorz Daniluk, Federico Vaga - 7 April 2020