Dear Graeme Russ, In message <BANLkTim7=-rza_l-dy0b-+adqv4ngol...@mail.gmail.com> you wrote: > > But at 9600 baud it is over 1ms - 9600 is still considered the lowest > common denominator for serial comms for diagnostic output for a lot of > devices such as industrial PLCs etc.
I think in the last 5 years I have seen but 2 devices using 9600 bps. All others appear to be using 115200 bps these days. And even at 9600 we're still close to millisecond reolution... > And in the field, you may be interested more in transient timing anomalies > which may result from network issues if the device is obtaining an IP address > or loading an image file. In such scenarios, you will need to log the boot > timing of every boot, not just when a serial terminal is connected time-stamping console output is not restricted to the serial port. It works as well with tty over USB, or netconsole, or even netconsole over USB. > And finally, the lack of a serial port is a biggie - There are devices out > there that do not have serial ports If they have a console interface, then the output can be time-stamped. Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de To know how another being, another creature feels - that is impos- sible. - Terry Pratchett, _The Dark Side of the Sun_ _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
