Forum Discussion
Altera_Forum
Honored Contributor
15 years agoI have attached a screen shot showing information relevant to this problem. The computer management window shows that the Altera USB-Blaster is installed with no problems detected. The Quartus II window shows the "Can't access JTAG chain" message. The Programmer window shows what I was trying to program the Cyclone III with. And finally the JTAG Chain Debugger shows several error messages, most notably "No device detected". Unfortunately it's suggestions for what might be wrong are not helpful since I am working with Altera's Cyclone III Development Board and not a custom board. Also the development board appears to be working fine; it is doing the Cylone scanning thing with it's LEDs as an indication that it is working properly.
I am making an assumption that a USB cable is the only connection I need between my computer and the development board.