FPGA, SoC, And CPLD Boards And Kits
FPGA Evaluation and Development Kits
Announcements
Intel Support hours are Monday-Fridays, 8am-5pm PST, except Holidays. Thanks to our community members who provide support during our down time or before we get to your questions. We appreciate you!

Need Forum Guidance? Click here
Search our FPGA Knowledge Articles here.
5145 Discussions

How to set I/O to 1.8V on Cyclone III development board

Altera_Forum
Honored Contributor I
789 Views

Hi all,  

 

I'm a new comer on this forum 

Just a question regarding the Cyclone III development board. 

 

I wish to use the development board to pilot a Power Amplifier. The selected component needs a VIO of 1.8V. 

In the Pin Planner of the FPGA all the needed outputs are set to 1.8V but once synthesized and downloaded in the board, the output' voltage remains at 2.5V. 

(I use the J9 connector + the HSMC breakout board). 

 

Did I miss something? 

Do you know how to change the voltage to 1.8V 

 

Thanks a lot 

 

Regards,  

 

Sebastien
0 Kudos
1 Reply
Altera_Forum
Honored Contributor I
102 Views

The basic point is to connect VCCIO of the respective bank to a 1.8V supply. The options isn't provided for the HSMC IOs of your development board, I suppose. There's no other option than using level converter ICs or similar solutions.

Reply