>From the 7250 manual:
The TS-7250 optionally supports a Non-volatile Battery-backed real-time clock
(RTC)
which is soldered onto the board. This option uses an ST Micro M48T86PC1
module for
the real-time clock function. This module contains the lithium battery, 32.768
kHz crystal,
and a RTC chip with 114 bytes of battery-backed CMOS RAM. It will maintain
clock
operation for a minimum of 10 years in the absence of power.
The 114 bytes of non-volatile RAM, physically located in the RTC chip, are
available to the
user. Contact Technologic Systems for driver support.
The RTC is accessed using two registers. The write-only index register is
located at
physical address location 0x1080_0000 and the RTC data register is location at
physical
address location 0x1170_0000. These are byte-wide registers with the Index
Register
property of write only. The Data Register has a read/write property. Valid
Index Register
values are between 0 and 127, decimal. The first 14 index locations are used
for
accessing the RTC Time and Date registers. The next 114 locations are
non-volatile RAM
locations.
This option is NOT compatible with the TS-5620, a peripheral board that also
uses an ST
Micro RTC module for real-time clock functionality. While the two options are
mutually
exclusive, it is possible to use the TS-5620 peripheral board on a TS-7250
that does not
have the on-board RTC option installed. Any source code that utilizes the RTC
is
compatible with both optional installations.
also see the schematics, and data sheet for the RTC.
-Curtis.
On April 18, 2006 11:36 am, parayam2006 wrote:
> I Use real Time Clock TS-5620 in TS-7200. I need Memory Address of Non
> Volatile RAM.
>
> Urgent... please
>
> /*******/
> Only for Spanish People..
> Para los Hipanos.
> Necesito usar la memoria no volatil del Reloj de Tiempo Real del TS-
> 5600, lo instalé en un 7200 y solo tengo la dirección para un pc
> standard (070 y 071), la necsito para el 7200 arm
>
> Gracias
>
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> Yahoo! Groups Links
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