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Failed to connect to MySQL: (1203) User howardkn already has more than 'max_user_connections' active connectionsPath: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: HW Newsgroups: sci.electronics.repair Subject: Re: Waking up a serial port Date: Mon, 17 Mar 2025 15:19:08 +0100 Organization: A noiseless patient Spider Lines: 13 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Injection-Date: Mon, 17 Mar 2025 15:19:07 +0100 (CET) Injection-Info: dont-email.me; posting-host="7770a413deec813ec1b8c53ee38f62af"; logging-data="329598"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+QruQhRYo7B0ABmVpf3D9z" Cancel-Lock: sha1:BLVxD9kvKRAV2uIFYHmdqn6Fbmg= X-Newsreader: Forte Agent 4.2/32.1117 Bytes: 1335 On Sat, 15 Mar 2025 17:30:03 -0000 (UTC), bp@www.zefox.net wrote: >Are there any customary tricks to making a diagnostic serial port >active? I am not aware of any standards. Some devices will respond to a few CR-LF, as in pressing the enter key a few times, but those are probably mostly intended to be accessible by the user. A device like this may very well have the serial port disabled in firmware.