Forum Discussion
Altera_Forum
Honored Contributor
9 years agoHi Frank,
--- Quote Start --- So your analysis can surely help me --- Quote End --- Great! The JTAG-to-Avalon-MM tutorial has a Tcl script that implements the protocol under quartus_stp. That Tcl should have pretty much all you need to implement the protocol. I used Kawk's reverse-engineering of the USB-Blaster to duplicate that logic and wrote some C-code to access the device via the FTDI driver ... It works, but unfortunately does not play nicely with the Altera tools, since each JTAG access needs to manipulate the TAP state. Eventually I decided there were more useful things to be doing with my time :) Cheers, Dave