Forum Discussion
Altera_Forum
Honored Contributor
9 years agoCyclone 5 custom board PLL issues
I created a board for cyclone 5 soc 5CSEBA5U19. The design behaves in a strange way. (hardware design) The JTAG chain has the HPS then the FPGA in series, like in DE1-SOC eval board. The FP...
Altera_Forum
Honored Contributor
9 years agoCheck the following link
https://www.altera.com/en_us/pdfs/literature/dp/cyclone-v/pcg-01014.pdf (https://www.altera.com/en_us/pdfs/literature/dp/cyclone-v/pcg-01014.pdf) page 15 has the following table information. https://www.alteraforum.com/forum/attachment.php?attachmentid=13066 Please note that it says "If any pll, REFCLK pin, or transceiver channel is used, you must connect ..............................."