Date: Tue, 26 Dec 2023 02:06:59 +0100 From: Bernd Walter <freebsd-arm@cicely.de> To: Marcin Cieslak <saper@saper.info> Cc: bob prohaska <fbsd@www.zefox.net>, ticso@cicely.de, freebsd-arm@freebsd.org Subject: Re: USB-serial adapter suggestions needed Message-ID: <ZYonM2b2X008mpaw@cicely7.cicely.de> In-Reply-To: <55q37289-ss30-nq9o-7r31-086n999p394s@fncre.vasb> References: <ZYd%2Bmid70Sc1xg//@www.zefox.net> <snq8819p-3q19-o239-7op5-sss807q66082@fncre.vasb> <ZYeDi2H754ZKyJG3@www.zefox.net> <16864054-4os0-pq3p-7qp0-7299666908os@fncre.vasb> <ZYhSYNxHcmR2I/YP@www.zefox.net> <ZYhjzPLUBT74EVau@cicely7.cicely.de> <ZYiI7KuPwabExucl@www.zefox.net> <55q37289-ss30-nq9o-7r31-086n999p394s@fncre.vasb>
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On Tue, Dec 26, 2023 at 12:02:50AM +0000, Marcin Cieslak wrote: > On Sun, 24 Dec 2023, bob prohaska wrote: > > > I do see what looks like noise on the serial lines, but only after a spontaneous > > disconnect and only with FTDI adapters. When the serial connections are working > > nothing resembling noise is seen. > > How does that noise look like? If the tip process was stopped by the ssh disconnect then the uart will fall back to its default bps rate. Some USB uarts still buffer received data in the chip itself, with the wrong bps rate. > Did you try to run respective sshd daemons in the debug mode to log disconnects > and possible their reason? -- B.Walter <bernd@bwct.de> https://www.bwct.de Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.
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