Messages in this thread |  | | | Date | Wed, 12 Dec 2007 01:27:30 +0100 | | Subject | Re: [RFT] Port 0x80 I/O speed | | From | Rene Herman <> | |
On 12-12-07 01:14, Maxim Levitsky wrote:
> CPU frequency locked to 2128.000 Mhz:> maxim@MAIN:~/tmp$ sudo ./port800> cycles: out 1650, in 1065
> CPU frequency locked to: 1596.000 Mhz> maxim@MAIN:~/tmp$ sudo ./port800> cycles: out 1730, in 1138
> A bit strange, isn't it?
Well, yes. Don't know what that effect is. A bus-clock divided from the CPU
clock comes to mind, but I believe that shouldn't happen to LPC.
Anyways, we're looking for an upper bound and that's still nicely below 2 us
on everything upto now, so I guess it doesn't matter all that much. Thanks!
Rene.
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