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mstef1
Beginner
677 Views

referring to my previous post, please let me add a strange condition

Chcking with oscilloscope the signal DATA0, after programming EPCS64 (with no errors), when I power-on the bord DATA0 stay to value between 1V.

I tryed to understand if this pin is set as general IO, but I ws not able to find where it is set (quartus 13).

could you please help me?

maurizio stefani

 

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AnandRaj_S_Intel
Employee
12 Views

Hi,

 

By default it will be tri-stated.

You can find the option from

Go to "Project navigator" -> right Click on the Device part-number->Select the "Device"->Click on "Devices and Pin Options" ->Under category go to "Dual Purpose-pins".

 

Are you using development kit or custom board?

What problem exactly are you facing during power-on?

Check the pull up resistors.

https://www.intel.com/content/dam/altera-www/global/en_US/pdfs/literature/hb/cfg/cyc_c51014.pdf

 

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

 

Best Regards,

Anand Raj Shankar

(This message was posted on behalf of Intel Corporation)