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Error on non-volatile encription for Arria10

Altera_Forum
Honored Contributor II
910 Views

Dear experts, 

Now I am facing with a hardware issue on writing encription. When I wrote a non-volatile encription key with ekp-file to Arria10 device, it caused writing failure on Programmer. After that, I checked port status, and found TDO was always 1.8V, Vcc for JTAG. 

Since TDO was always remained as 1.8V, I couldn't use JTAG port. 

Once I used the target ekp-file for another device, and it worked correctly.  

I revised file-name only for the ekp-file on this time. 

 

Does anyone have any idea about such an issue? 

 

Thanks, 

Tetsuya
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1 Reply
Altera_Forum
Honored Contributor II
116 Views

Guys, 

I found a root cause. My new assembled board had mistake on component for 0.9V regulator. It would resolve by correct part mount. 

 

Thanks. 

Tetsuya
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