Programmable Devices
CPLDs, FPGAs, SoC FPGAs, Configuration, and Transceivers
20693 Discussions

Rpullup value for Weak Pull-Up Resistor option ?

Altera_Forum
Honored Contributor II
‎03-14-2011 10:05 AM
1,030 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
0 Kudos

Link Copied

3 Replies
Altera_Forum
Honored Contributor II
‎03-23-2011 12:36 PM
311 Views

I think it is

0 Kudos
Copy link
Altera_Forum
Honored Contributor II
‎04-04-2011 11:50 AM
311 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
0 Kudos
Copy link
Altera_Forum
Honored Contributor II
‎04-04-2011 02:44 PM
311 Views

Sure, why not? 

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

Community support is provided during standard business hours (Monday to Friday 7AM - 5PM PST). Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.