LPC2138 Real Time Clock
Started by ●March 30, 2005
Does nayone have document telling how to hook up a 32.768KHz crystal
to pins RTCX1 and RTCX2? What capacitors value to use in parallel to
the crystal? Thank you.
Reply by ●March 31, 20052005-03-31
MCB2130 schematics @:
http://www.keil.com/mcb2130/mcb2130-schematics.pdf
--- In lpc2000@lpc2..., "lpc2100_fan" <lpc2100_fan@y...> wrote:
>
> Hi,
>
> there is an evaluation board from Keil and we used the RTC, it seems
> to work without problems there.
> Information about the board can be found here:
> http://www.keil.com/mcb2130/
> There is also a link to the schematics somewhere there.
>
> Bob
>
> --- In lpc2000@lpc2..., "iahneyugn" <iahneyugn@y...> wrote:
> >
> > Does nayone have document telling how to hook up a 32.768KHz crystal
> > to pins RTCX1 and RTCX2? What capacitors value to use in parallel to
> > the crystal? Thank you.
Reply by ●March 31, 20052005-03-31
Hi,
there is an evaluation board from Keil and we used the RTC, it seems
to work without problems there.
Information about the board can be found here:
http://www.keil.com/mcb2130/
There is also a link to the schematics somewhere there.
Bob
--- In lpc2000@lpc2..., "iahneyugn" <iahneyugn@y...> wrote:
>
> Does nayone have document telling how to hook up a 32.768KHz crystal
> to pins RTCX1 and RTCX2? What capacitors value to use in parallel to
> the crystal? Thank you.
Reply by ●March 31, 20052005-03-31
I understand that there is an error in that sch.
The configuration should be
(see in fixed font!):
--------------------
| |
| |\ |
-| >o-- R ----- X --|
|/ | |
C C
| |
GND ---------------
Regards, Alejandro
----- Original Message -----
From: lpc2100_fan
To: lpc2000@lpc2...
Sent: Thursday, March 31, 2005 1:55 AM
Subject: [lpc2000] Re: LPC2138 Real Time Clock
Hi,
there is an evaluation board from Keil and we used the RTC, it seems
to work without problems there.
Information about the board can be found here:
http://www.keil.com/mcb2130/
There is also a link to the schematics somewhere there.
Bob
--- In lpc2000@lpc2..., "iahneyugn" <iahneyugn@y...> wrote:
>
> Does nayone have document telling how to hook up a 32.768KHz crystal
> to pins RTCX1 and RTCX2? What capacitors value to use in parallel to
> the crystal? Thank you.
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