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Altera_Forum's avatar
Altera_Forum
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11 years ago

USB-Blaster: Unable to read device chain - JTAG chain broken

I'm using Ubuntu14.04 and quartus14.1. When I run jtagconfig, I get: $ jtagconfig 1) USB-Blaster [3-6] Unable to read device chain - JTAG chain broken The hardware is correct becaus...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Well, even following this procedure doesn't work 100%.

It's look like running quartus_hps first help jtagconfig working:

$ quartus_hps -c1 -o PV -a 0x0 -s 262144 ./preloader-mkpimage.bin

The conditions to make jtagconfig working are not clear to me.