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I'm able to successfully enable Access Port protection, either using nrfjprog or by setting NRF_UICR->APPROTECT register to 0xFFFFFF00 in code.
But I have a problem if I want to perform inverse operation - disable Access Port protection. I ... (more)
Hello! After writing 0xFFFFFF00 to APPROTECT register can't "recover" board:
C:\Program Files (x86)\Nordic Semiconductor\nrf5x\bin>nrfjprog.exe --recover --log Recovering device. This operation might take 30s. ERROR: JLinkARM DLL reported an error. Try again. If error ...