On Tue, Sep 15, 2015 at 06:16:49PM +0200, Andrzej Telszewski wrote: > It's not about the bad SWD connection, but rather about the bug in the > chip. The chip is: nRF51822 QFAACA. > > The problem is that, in some revisions of the chip, if you enter > SYSTEMOFF mode, it's not possible for the debugger to connect to the > chip any more. To connect again, you either have to wake-up the chip or > recover the chip using Nordic's nrfjprog.
Thanks for explaining. In addition to checking for a zero read result and erroring out cleanly if that happens, is seems to me that a good long-term fix for this problem would be to have openocd detect and recover from a SYSTEMOFF state, as part of either the nrf examine routine or the reset routine. Do you know anything about the recovery steps that nrfjprog does to wake up the chip? Angus ------------------------------------------------------------------------------ Monitor Your Dynamic Infrastructure at Any Scale With Datadog! Get real-time metrics from all of your servers, apps and tools in one place. SourceForge users - Click here to start your Free Trial of Datadog now! http://pubads.g.doubleclick.net/gampad/clk?id=241902991&iu=/4140 _______________________________________________ OpenOCD-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/openocd-devel
