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I am using MAX10 FPGA in my design and i am making JTAGEN pin as NC, because i dont want to use sharing. is it ok? is there any problem?

AKuma150
Beginner
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AnandRaj_S_Intel
Employee
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Hi Arvinda,

 

No,

Intel recommend to pull-up JTAGEN pin to a weak 10-kΩ pull-up.

 

If the JTAG pin sharing is not enabled, the JTAGEN pin is a regular I/O pin and JTAG pins function as JTAG dedicated pins.

To use JTAG pin as dedicated pin, tie the JTAGEN pin to a weak 10-kΩ pull-up

 

Reference,

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/dp/max-10/pcg-01018.pdf

 

Let me know if this has helped resolve the issue you are facing or if you need any further assistance.

 

Best Regards,

Anand

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AKuma150
Beginner
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Hi Anand

 

thanks for your reply

weak pull-up means just need to enable the weak pull-up option for that particular pin right ?

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AnandRaj_S_Intel
Employee
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HI Arvinda,

 

Yes, jtagen pin has an internal 25-kΩ pull up. but still we required external 10-kΩ pull-up.

 

Regards

Anand

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AKuma150
Beginner
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Hi Anand

 

thanks for your help

 

Aravind

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