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Cyclone 10 LP GND pins internally connected?

stomat
Beginner
1,064 Views

I have design with a 10CL006YE144I7G which works fine in hundreds of devices but in few number of devices the FPGA stopped loading the configuration from the flash. I removed the FPGA from the pcb for measuring purposes and I realized that the GND are connected to each other. I compared it with a new FPGA and it's the same. Is this correct that these pins are not connected internally? Is there a documentation whrer I can find further informations? 

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AqidAyman_Intel
Employee
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Yes, you are correct. As per my understanding, the GND pins are not connected internally as per in the Pin Connection Guidelines of Cyclone 10 LP, it mentioned to connect all the GND pins to the ground plane.


Reference:

https://www.intel.com/content/www/us/en/docs/programmable/683137/current/supply-pins.html


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4 Replies
AqidAyman_Intel
Employee
1,031 Views

Yes, you are correct. As per my understanding, the GND pins are not connected internally as per in the Pin Connection Guidelines of Cyclone 10 LP, it mentioned to connect all the GND pins to the ground plane.


Reference:

https://www.intel.com/content/www/us/en/docs/programmable/683137/current/supply-pins.html


AqidAyman_Intel
Employee
1,026 Views

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FvM
Honored Contributor II
993 Views
Hi,
seriously I don't understand the original post. It says "I realized that the GND are connected to each other" and continuous asking "Is this correct that these pins are not connected internally?" In my understanding, the statements are contradictory.
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stomat
Beginner
936 Views

Hi,

thanks for your reply. I made a mistake in my original post, sorry for that. I wrote " I removed the FPGA from the pcb for measuring purposes and I realized that the GND are connected to each other. " but it should have been "I removed the FPGA from the pcb for measuring purposes and I realized that the GND pins are NOT connected to each other. ". I hope my question is now clear.

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