The article about the ESP-Link ended with what turned out to be an ominous note, in hindsight:
There’s still a buglet in this setup: the “reset” word leads to a runaway loop of “Unhandled Interrupt 00000003” - but this can be recovered through […]
Something really strange was happening:
toggling the DTR pin from the ESP-Link did correctly reset the Olimexino but doing a software reset sent the Olimexino into a tail spin And here were the crazy bits:
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