Programmable Devices
CPLDs, FPGAs, SoC FPGAs, Configuration, and Transceivers
20673 Discussions

change the slew rate to medium MAX V

Vitali1
Beginner
311 Views
Hello, I need to change the slew rate to medium in 5M570ZT100.
 
in assignment editor in Quartus doesn't propose SLEW_RATE.
When I tried to use explicitly "alt_outbuf" buffer which has  SLEW_RATE parameter I get error 
Error (12175): The parameter "slew_rate" on the I/O primitive type "alt_outbuf" is not supported for the "MAX V" device family.
tcl command modify_io_slew_rate is not supported for "MAX V"
in pin planner I don't have column for slew rate.
looks like Altera doesn't want users to have full control on slew rate for "MAX V". 
 
but in max5_handbook I can see that it's possibleslew rate control.jpg

could anybody help me please
thank you
 
Labels (1)
0 Kudos
1 Solution
FvM
Valued Contributor III
276 Views

Hi,
1. pin planner doesn't display all available pin option by default. Use "customize columns" in context menu to display "Slow Slew Rate" option.
2.  The tcl command is 
set_instance_assignment -name SLOW_SLEW_RATE ON to <pin name>

There's no "medium" slew rate setting. You can set "slow slew rate" for individual pins, default setting is off. Review resource section, output pins in fitter report in case of doubt.

View solution in original post

0 Kudos
3 Replies
FvM
Valued Contributor III
277 Views

Hi,
1. pin planner doesn't display all available pin option by default. Use "customize columns" in context menu to display "Slow Slew Rate" option.
2.  The tcl command is 
set_instance_assignment -name SLOW_SLEW_RATE ON to <pin name>

There's no "medium" slew rate setting. You can set "slow slew rate" for individual pins, default setting is off. Review resource section, output pins in fitter report in case of doubt.

0 Kudos
Vitali1
Beginner
231 Views
0 Kudos
AqidAyman_Intel
Employee
219 Views

I’m glad that your question has been addressed, I now transition this thread to community support. If you have a new question, Please login to ‘https://supporttickets.intel.com’, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions.


0 Kudos
Reply