On Mon, Jul 05, 2010 at 01:57:33PM +0600, Alexey Goncharov wrote:
> I'm working on an application that runs under uClinux on a custom
> board (arm7) and deals with serial port.

Which processor are you using?

> The problem is
> that the time between "write" syscall (write to serial port) and the
> moment when the data physically appears on a pin is huge - up to 200
> ms and it varies from one cycle to another.

How did you measure this delay?

  Daniel
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