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mfeinstein
Joined: 05 Jul 2012
Posts: 35
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| PIC Postscaler |
 Posted: Thu Oct 04, 2012 6:48 pm |
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Hi guys, I am not understanding very well the difference between the Prescaler and the Postscaler, at the end, they seem to be the same thing for me.
For example, if I have a 2:1 Prescaler and a 2:1 Postscaler, isnt it the same as having a 4:1 Prescaler and no Postscaler?
Thanks |
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bkamen
Joined: 07 Jan 2004
Posts: 1615
Location: Central Illinois, USA
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| Re: PIC Postscaler |
| Posted: Thu Oct 04, 2012 6:52 pm |
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| mfeinstein wrote: | Hi guys, I am not understanding very well the difference between the Prescaler and the Postscaler, at the end, they seem to be the same thing for me.
For example, if I have a 2:1 Prescaler and a 2:1 Postscaler, isnt it the same as having a 4:1 Prescaler and no Postscaler?
Thanks |
They are both dividers.
Yes, you can look at dual 2:1's as a single 4:1... but there's also a reason for adding them to the front and back of event generators.
So as long as you understand that, you have the right idea.
-Ben
_________________
Dazed and confused? I don't think so. Just "plain lost" will do. :D |
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mfeinstein
Joined: 05 Jul 2012
Posts: 35
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| Posted: Thu Oct 04, 2012 6:56 pm |
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I think I got myself the answer...if you are reading the timer and thus want more resolution in your timer, you can keep a good resolution and still only interrupt later, having this way a "simulated longer timer".
If I am wrong or if my answer wasnt clear, please let me know,
Best Regards |
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