Forum Discussion
Altera_Forum
Honored Contributor
14 years ago --- Quote Start --- Is there some sort of emulator or logic analyzer that is to be used for all that you suggested. --- Quote End --- The Altera USB-Blaster and Parallel Port ByteBlasters can be used, a digital I/O board, a microcontroller board, etc. Altera's Quartus tool has a JTAG debugger. It probably does the above sequence too. --- Quote Start --- I am find a hard time figuring out that how am I suppose to this???? --- Quote End --- Figuring stuff out like this makes you an engineer. So get to work! --- Quote Start --- Why is this neccesary ... --- Quote End --- Because you said TDO was stuck at ground, and you wanted help to figure out why. If the JTAG chain on your board works, and you can configure your device via JTAG, then of course you do not need to do any of this, since your design is working. Then you would move onto confirming that AS configuration mode works. Don't get scared off by one failure. Its fixing the problems that is the fun part. If stuff always worked, you'd never really learn how to debug problems would you? :) Cheers, Dave