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SWD protection on nRF51822

Davide

Hi all, is there any method to disable SWD in a way that every operation through SWD is blocked? Do the MPU also blocks for reprogram the binary through SWD (maybe disabling debug mode forever)?

Thanks, Davide

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    Can't answer for nRF51, although of course other M0 chips have true SWD perm lockouts. I know the flaw you are referencing, and I'm not sure if Nordic ever addressed it. I'm not sure but I doubt the nRF52 being on a more advanced M4 core has the same issue, I haven't looked yet.

    So whatever answer you get, I'd be interested in the same was true for the nRF52.

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    Can't answer for nRF51, although of course other M0 chips have true SWD perm lockouts. I know the flaw you are referencing, and I'm not sure if Nordic ever addressed it. I'm not sure but I doubt the nRF52 being on a more advanced M4 core has the same issue, I haven't looked yet.

    So whatever answer you get, I'd be interested in the same was true for the nRF52.

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