Re: Serial issue
From: Russell King
Date: Fri Aug 18 2006 - 16:33:38 EST
On Fri, Aug 18, 2006 at 04:32:43PM -0400, Mark Hounschell wrote:
> Lee Revell wrote:
> > On Fri, 2006-08-18 at 16:25 -0400, Mark Hounschell wrote:
> >> Take it from someone who actually still uses dumb terminals every day,
> >> any thing over 9600 baud still requires some kind of flow control for
> >> reliable consistent operation. Software (Xon/Xoff) and or hardware
> >> (RTS/RTS/DTE) flow control.
> > Any idea why the serial console does not work at all with flow control
> > enabled (regardless of whether the host runs Linux or another OS)?
> > Lee
> Your cable is probably wrong. Both ends have to be using the type of flow
> control your cable is wired for.
Not quite true. You can use XON/XOFF or hardware flow with a fully
populated cable, but if you have a sparsely populated cable (RX,TX,GND
only) then hardware flow control can't (and won't) work.
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 Serial core
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