Forum Discussion

Cameronray's avatar
Cameronray
Icon for New Contributor rankNew Contributor
3 years ago

Quartus 2 13.0 - 'Unexpected error in JTAG server -- error code 12'

I am using an Altera USB Blaster Rev C in attempts to load a Max II EPM570 using Quartus II 13.0 in JTAG mode. I am getting "Unexpected error in JTAG server -- error code 12". I am wondering what thi...
YuanLi_S_Intel's avatar
YuanLi_S_Intel
Icon for Regular Contributor rankRegular Contributor
3 years ago

it could be the JTAG issue, can you try to change another USB Blaster or reduce the TCK frequency if you are using Blaster II?