Forum Discussion

NMadh's avatar
NMadh
Icon for New Contributor rankNew Contributor
5 years ago

Why is Altera® USB Blaster not detected by Quartus® Programmer when it is recognized correctly in Device Manager?

HI I am not able to program my Cyclon V EVM as the Quartus prime (Quartus prime version 19.1.0 build 670 09/22/2019 SJ Lite Edition) because USB blaster II is not being detected by Quartus programm...
AR_A_Intel's avatar
AR_A_Intel
Icon for Super Contributor rankSuper Contributor
5 years ago

Hello,

Good day

Welcome to INTEL forum. Could you help try on this just reboot Altera JTAG server (not disable it)

• Goto Window task manager -> process -> look for jtagserver.exe and kill it

• After that, the default JTAG clock frequency is 24M. Could you try reducing the JTAG clock speed to 16M or 6M to see how things go.