Date: Tue, 3 Jul 2018 09:20:18 +1000 From: Trev <freebsd-arm@sentry.org> To: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: RPI3B+ does not reboot Message-ID: <b52282e0-40cc-bb59-3f54-ca042b63bfd8@sentry.org> In-Reply-To: <BY2PR16MB0149B3B639A5664E8CAF1870BD430@BY2PR16MB0149.namprd16.prod.outlook.com> References: <BY2PR16MB0149B3B639A5664E8CAF1870BD430@BY2PR16MB0149.namprd16.prod.outlook.com>
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Wis Macomson wrote on 03/07/2018 00:58: > Can you disconnect the serial TX data (data to the RPi) and try the reboots? > > It may be that this signal is partially powering the processor through the input ESD > protection diode, leading to very awkward internal states. This has been observed on > the Rock64 (RK3328 SoC) and Rockpro64 (RK3399). > > If you can just break the TX connection, you'll be able to see the boot messages. I removed Tx and left Rx and Gnd connected but on the first reboot attempt I still suffered: All buffers synced. Uptime: 11h34m59s Rebooting... cpu_reset failed
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