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Newbie rajesh877
Newbie
297 Views
Registered: ‎01-25-2019

Counter Sync between two different CPLD devices

We have to different CPLD's ( Same Part number ) on one single PCB. We provide clock to both the CPLD's using a single Crystal (8.192Mhz). In each CPLD we generate counters (5 bit counter ). We want the counters to run Synchronously. Our current issue is the counters ( on Both the CPLD's ) run asynchronously. 

 

Request expers to provide us a solution to the above mentioned issue. 

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3 Replies
Scholar u4223374
Scholar
276 Views
Registered: ‎04-26-2015

Re: Counter Sync between two different CPLD devices

The obvious solution is to designate one CPLD as the "Master" and have it output a signal every time its counter overflows. This then resets the other CPLD's counter, forcing them to stay synchronized.

Newbie rajesh877
Newbie
269 Views
Registered: ‎01-25-2019

Re: Counter Sync between two different CPLD devices

Thanks for immediate reply. We will try and update it here. 

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Moderator
Moderator
171 Views
Registered: ‎01-16-2013

Re: Counter Sync between two different CPLD devices

@rajesh877

 

Any update on this thread?

 

--Syed

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