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I am looking for a way of using a baud rate of 62,500 (8N1) on a windows PC on a serial port or USB->serial adapter to communicate with an older piece of hardware that uses this speed. Can this be done via code or is it a hardware solution?

Bill H
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  • Hardware. Picking an unusual baudrate is a classic vendor tie-in strategy. It is twice the MIDI baudrate, another example of a protocol that was designed to give the device manufacturers an edge. Advantage is that they don't have to cut their own crystals :) Not usually where it ends, they tend to also pick a 9-bit data protocol, takes a micro-controller. RS-485 is common. – Hans Passant Apr 25 '16 at 22:25
  • Try using a [OX16PCI952](http://www.softio.com/ox16pci952ds.pdf) chip (e.g. Startech PCI2S950 card) that is very flexible with setting baud rates (by programming the clock, modes and divisor). Price can be as low as US$10 on eBay. – sawdust Apr 26 '16 at 08:31

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You can use Putty for open a serial port with custom speed.

Johann Camboly
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  • Putty lets you put in any value you want but then returns an error if it is not a supported value. – Bill H Apr 25 '16 at 22:01