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i have done a blank check and even erased the device again, but nothing changes, still the device has many high voltage I/O's.
my bank voltage is 3.3V. please advice why this happens and why the I/O's aren't Tri-stated?
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configuration setting in the quartus is irrelevant because I am talking about a blank max10, a max10 that comes from the factory.
I assume it is the same as an erased one.
why aren't the output of the device at tri-state on a blank component?
thank you,
Itai
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Blank, unprogrammed parts all have tri-state I/O with weak pull-ups.
Cheers,
Alex
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Hello Alex ,
Can you kindly point out in datasheet where it is mentioned ?
Thank you ,
Regards,
Sree
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https://www.intel.com/content/www/us/en/programmable/documentation/mcn1397700832153.html#mcn1397811237452
Table 17:
"Value of I/O pin (dedicated and dual-purpose) pull-up resistor before and during configuration, as well as user mode if the programmable pull-up resistor option is enabled"
Cheers,
Alex
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Thank you for the answer and pointing on the datasheet,
Though, I see that it is possible to change User I/Os weak pull up during configuration: https://www.intel.com/content/www/us/en/programmable/documentation/sss1393988509894.html#sss1426059991604 through changing the ICB settings.
Is it possible to configure the weak pull up also when the max10 is not configured? (for example , configuring the icb settings and then erasing the device)
Thanks, Itai.
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This only affects the device during configuration. As soon as you erase the part these settings will have no effect.
Cheers,
Alex

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