Forums

PWM and Capture inputs !!!!

Started by Vimal Amin March 10, 2006
I need PWM (double edge) and capture on PWM timer itself. So I 
refered User manual of LPC2132. I found on page 181:
-----------------------------
15.1 Features:
.
.
.
 Four 32-bit capture channels take a snapshot of the timer value 
when an input signal transitions. A capture event may also 
optionally generate an interrupt.
-----------------------------
So I tested out PWM (double edge) on simulator. This works fine.

But I could not find "How to Capture value of PWM timer" at Caputre 
event.

Which are pins and which are controlling registers? where is capture 
valur stored.

Most of all LPC2xxx processor having PWM mentions CAPTURE in 
discription, but nothing further.

Is it a "COPY PEST" mistake for last so many revisions or I am 
missing something??

Vimal Amin
	

An Engineer's Guide to the LPC2100 Series

"PWM and Capture input" appears to be too stupid question or not
so 
important. So its ignored.

But I expect atleast Philips appication to clear the doubt.

Vimal Amin

--- In lpc2000@lpc2..., "Vimal Amin" <vimal19542000@...> 
wrote:
>
> I need PWM (double edge) and capture on PWM timer itself. So I 
> refered User manual of LPC2132. I found on page 181:
> -----------------------------
> 15.1 Features:
> .
> .
> .
>  Four 32-bit capture channels take a snapshot of the timer value 
> when an input signal transitions. A capture event may also 
> optionally generate an interrupt.
> -----------------------------
> So I tested out PWM (double edge) on simulator. This works fine.
> 
> But I could not find "How to Capture value of PWM timer" at
Caputre 
> event.
> 
> Which are pins and which are controlling registers? where is 
capture 
> valur stored.
> 
> Most of all LPC2xxx processor having PWM mentions CAPTURE in 
> discription, but nothing further.
> 
> Is it a "COPY PEST" mistake for last so many revisions or I am 
> missing something??
> 
> Vimal Amin
>