Elapsed timer not working as expected at 64MHz

[longpole001]

ticks should be 2.5ms , 1/100 is 4 x tick = 10ms , 1 sec should be 100 x 1/100th or 400 tick = 1sec

[Demon]

ticks should be 2.5ms , 1/100 is 4 x tick = 10ms , 1 sec should be 100 x 1/100th or 400 tick = 1sec

From my observations so far:

I think this is the core of the problem. With older PICs (I'm thinking up to 40MHz), a tick of 1/100 of a second was the smallest unit Darrel was able to attain. Now with newer PICs reaching 64MHz, a tick was now 4 times smaller. I can only guess that the old way of doing things in the background by Microchip was based on 16MHz processing, that would explain ticks becoming 4 times faster when using 64MHz.

As I mentionned in the chatbox last night, this is a PIC-specific issue. Sheldon mentionned that Darrel has released a 18FxxK22 version of the Elapsed Timer. I totally missed the release of this include. There's no mention of it in the archived web pages of Darrel's work (not surprising - they are old).

So I'll remove my modified version and leave people use Darrel's new version instead.

Robert

[Charlie]

No need to remove it - there's nothing wrong with having more than one program that does the same thing!

[Demon]

The problem with multiple versions is maintenance. If a problem is found in one version, it must also be corrected in the other - duplicating work. For example, when Microchip decides to change how things work in the background.


Right now I can't seem to find a post where Darrel released his Elapsed Timer for 18FxxK22 PICs. Has anyone else seen it?

Or was it possibly distributed through PM?

Robert