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Except for the "reasonable rate" bit, which (IMHO) also includes "reasonable latency." Real UARTs can be used for, e.g., pulse-per-second...

Except for the "reasonable rate" bit, which (IMHO) also includes "reasonable latency." Real UARTs can be used for, e.g., pulse-per-second inputs from GPS or atomic clocks to discipline an NTP server. That doesn't work for a USB->serial thingy (because the latency is literally three orders of magnitude worse).

Posted by throwketchup on Aug 18, 2014, 5:39 AM

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Except for the "reasonable rate" bit, which (IMHO) also includes "reasonable latency." Real UARTs can be used for, e.g., pulse-per-second...

throwketchupAug 18, 2014, 5:39 AM

Except for the "reasonable rate" bit, which (IMHO) also includes "reasonable latency." Real UARTs can be used for, e.g., pulse-per-second inputs from GPS or atomic clocks to discipline an NTP server. That doesn't work for a USB->serial thingy (because the latency is literally three orders of magnitude worse).

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