Cyclone IV E EP5CE55F23C8N Reference schematic design - Cyclone IV E EP5CE55F23C8N Reference schematic design Hi My design need use EP4CE55F23C8N chip, but I can't find an reference hardware design of it. So, It's a little difficult to start this hardware design, this chip have so many Pins... I found some supporting documentation, but, if I can get an reference design, it is very helpful. Such as: an schematic other people used. My main concern is the use of pins, by referring to other people's pin assignments and combining my own design, I can easily confirm that my design is correct. Do we have such files. And, It is difficult for me to find a local agent to get intel FPGA support in China. There is no direct person to connect with. So, I have to come here ask for help. Does Intel have this consideration. Please provide some help, which will be very helpful. Thank you. Replies: Re: Cyclone IV E EP5CE55F23C8N Reference schematic design Hi there We don't categorize the design into specific package ordering. You can search for example design for Cyclone IV below: https://fpgacloud.intel.com/devstore/platform/?acds_version=any&family=cyclone-iv For pin assignment, there are 2 main references you can check: 1. Pinout file (you can check the IO function per pin): https://www.intel.com/content/www/us/en/programmable/support/literature/lit-dp.html 2. Pin Connection Guideline (you can check on description of each IO function) https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/dp/cyclone-iv/pcg-01008.pdf Let me know if you have any question. Thanks. Eng Wei