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Discussion Groups | LPC900 | Re: T0 Pin as simple I/O

Find help, specifications and source code for the LPC900. The LPC900 challenges Microchip and AVR based on the worlds most popular 8-bit architecture the 80C51. With a 2-clock core the LPC900 series is a high performance, very flexible and low cost 8-bit microcontroller family. Designers using or interested in these devices are encouraged to share their know-how and ask questions.

Re: T0 Pin as simple I/O - Will - Mar 3 6:24:00 2006

It could be hardware or software. Look at the timer block diagrams in the user's manual.
 
The Int0 pin can cause the timer to stop if the software is setup to do so. Maybe toggling
the T0 pin causes the hardware to drive the Int0 pin low which can stop the counter.
 
Otherwise look in your other software for TR0 to go low which will stop the counter. Or
the C/T control bit could get set to Timer mode.
 
WT
----- Original Message -----
From: eletronica3
To: l...@yahoogroups.com
Sent: Thursday, March 02, 2006 8:09 AM
Subject: [lpc900_users] T0 Pin as simple I/O

Hi everybody,

I´m a new LPC900´s user and i´ve got a little problem, When I use the
T0 pin as a simple output pin to drive a load (on/off), The CPU stops
the counter (I´m using Timer 0 as a 16bit timer/counter based on the
Internal RC Oscilator). In this case above, I´m not interested in PWM
aplication just turn on/off a load.
Maybe this pin just work on PWM apps. and not as this operation mode
described above.

Could someone help me ?

Thanks a lot !!!

M2O

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