Lpc2000

Hi

Does anyone know what the default port logic levels are for the 
LPC2212 when the device is blank and energised ready for programming

Also what are the default levels for all ports during energisation 
when the device is programmed with sw

Thanks for your help

Scott

Hi,

after reset no matter whether programmed or not, in general ports are
input, I2C ports are open drain.
After programming, ports that you define as outputs will eb driving
according to the high / low level you programmed

Cheers, Bob

--- In lpc2000@yahoogroups.com, "scottkelsall" <scottkelsall@y...> wrote:

> 
> Hi
> 
> Does anyone know what the default port logic levels are for the 
> LPC2212 when the device is blank and energised ready for programming
> 
> Also what are the default levels for all ports during energisation 
> when the device is programmed with sw
> 
> Thanks for your help
> 
> Scott

Hi 

Thanks for your help

Cheers, Scott
--- In lpc2000@yahoogroups.com, "lpc2100_fan" <lpc2100_fan@y...> 
wrote:
> 
> Hi,
> 
> after reset no matter whether programmed or not, in general ports 
are
> input, I2C ports are open drain.
> After programming, ports that you define as outputs will eb driving
> according to the high / low level you programmed
> 
> Cheers, Bob
> 
> --- In lpc2000@yahoogroups.com, "scottkelsall" <scottkelsall@y...> 
wrote:
> > 
> > Hi
> > 
> > Does anyone know what the default port logic levels are for the 
> > LPC2212 when the device is blank and energised ready for 
programming
> > 
> > Also what are the default levels for all ports during 
energisation 

> > when the device is programmed with sw
> > 
> > Thanks for your help
> > 
> > Scott

The I2C lines are not configured to open drain by default. P0.2 and
P0.2 will be in GPIO mode after reset. User manual, page 117, last
column, Reset Value=00

--- In lpc2000@yahoogroups.com, "lpc2100_fan" <lpc2100_fan@y...> wrote:
> 
> Hi,
> 
> after reset no matter whether programmed or not, in general ports are
> input, I2C ports are open drain.
> After programming, ports that you define as outputs will eb driving
> according to the high / low level you programmed
> 
> Cheers, Bob
> 
> --- In lpc2000@yahoogroups.com, "scottkelsall" <scottkelsall@y...>
wrote:

> > 
> > Hi
> > 
> > Does anyone know what the default port logic levels are for the 
> > LPC2212 when the device is blank and energised ready for programming
> > 
> > Also what are the default levels for all ports during energisation 
> > when the device is programmed with sw
> > 
> > Thanks for your help
> > 
> > Scott

On 20 Jan 2005 at 21:03, lpcarmed wrote:

> 
> 
> The I2C lines are not configured to open drain by default. P0.2 and
> P0.2 will be in GPIO mode after reset. User manual, page 117, last
> column, Reset Value=00

Even though these pins are configured as GPIO lines, they remain
open-drain. They are not only configured as open-drain when the
I2C functionality is selected.

Regards
   Anton Erasmus



> --- In lpc2000@yahoogroups.com, "lpc2100_fan" <lpc2100_fan@y...>
> wrote: > > Hi, > > after reset no matter whether programmed or not, in
> general ports are > input, I2C ports are open drain. > After
> programming, ports that you define as outputs will eb driving >
> according to the high / low level you programmed > > Cheers, Bob > >
> --- In lpc2000@yahoogroups.com, "scottkelsall" <scottkelsall@y...>
> wrote: > > > > Hi > > > > Does anyone know what the default port logic
> levels are for the > > LPC2212 when the device is blank and energised
> ready for programming > > > > Also what are the default levels for all
> ports during energisation > > when the device is programmed with sw >
> > > > Thanks for your help > > > > Scott
> 
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
> 
> 

-- 
A J Erasmus