Hi. I think I have got the answers to two of your questions, but don't take it
as 100% authoritative.
--- In "bru22003" <> wrote:
>
>
>
> Hi all,
>
> I have spent several hours googling these three qestion but can't find much.
> I have also read the 7550 manual many times and can't get any satisfaction.
> In the 7550 manual it states
>
> "There is an onboard LM73 temperature sensor that is connected over #I2C. You
> can easily interface with this by calling ts7500ctl:"
I think this means there is a TMP124 chip on the TS752 daughterboard that is
connected over I2C. DIO22 is marked TMP_CS on the TS752 schematic. I suspect
the ts7500ctl --gettemp will work if the TS752 board is connected.
>
> 1. If this true, how can I talk to it
>
> # ts7500ctl --gettemp
> tempsensor_ok=0
> temperature=0.000
> #
>
> 2. what do these two ts7500ctl options do?
>
> > -I, --extendedtempon Enable extended temp (200Mhz CPU)
> > -C, --extendedtempoff Disable extended temp (250Mhz CPU)
I think these reduce the processor speed, which indirectly increases the
permitted temperature range as the processor will run cooler at the lower
speed. I haven't tried it, but an integer arithmetic benchmark should give
different results at the lower speed.
>
> I sure hope it is not in the manual, because I have looked.
>
> Thank
>
> Angel
>
And your third question?????
Martin
>
>
>
>
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