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KJian6's avatar
KJian6
Icon for New Contributor rankNew Contributor
7 years ago

JTAG chain is broken when DDR4 is enable

Hi, I'm using ATTILA Arria10GX development kit with Quartus Prime 18.1.0 Build 222: 1, The JTAG works fine when my design system only has a NIOS II processor. 2, The JTAG chain will become ...
JohnT_Altera's avatar
JohnT_Altera
Icon for Regular Contributor rankRegular Contributor
7 years ago

Hi,

I suspect that either the DDR4 board interface or other IP that is physically crosstalk with the JTAG chain on your board which is causing the issue. I would recommend you to contact​ Reflexces company to check if the board have some issue or not.