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21615 Discussions

Rpullup value for Weak Pull-Up Resistor option ?

Altera_Forum
Honored Contributor II
1,451 Views

Hello folks, 

 

These is an option in the Quartus II assignment editor:  

"Weak Pull-Up Resistor". Is this the resistor mentioned in the Max II Device handbook in Chapter 5 table 5-4, Rpullup = 5 to 25 k Ohms ? 

 

Thanks, 

Eric
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Altera_Forum
Honored Contributor II
732 Views

I think it is

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Altera_Forum
Honored Contributor II
732 Views

Hi cioma, 

 

do you know if is it possible to apply pull-down and pull-up resistor by using schematics instead of VHDL for programming CPLD? 

 

thanks/Jair
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Altera_Forum
Honored Contributor II
732 Views

Sure, why not? 

Just make sure you either disable internal pull-ups or override their value with the value of external resistor.
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