Hardware Reference Design

The full schematic for the usb blaster ;) "can be found" :rolleyes: online as a single sided pdf as well as a single verilog file that contains all the logic inside the EPM7064AETC44. but it is a bit tricky to implement everything as you also need to know how the ftdi needs to be programmed properly.

Around 2-3 years ago we had all kind of jtag blasters from different companies to compare them. our software guys were badly disapointed about the jtag speed as the application is several MB in size and digged around a bit as we "heared" at one of the traid fairs that the speed would be increased if we would buy some fs2 license. if that is true and the target as well as the enviroment stays the same, then this must be some kind of configuration switch. at the end they now use a script that calls this

@ %SOPC_KIT_NIOS2%\bin\nios2-gdb-server-fs2.exe --tcpport=2342 --connect-reset=1 --page-cache=0 --verbosity=1

and the download as well as the gdb debugging was increased up to factor 2 as they could compared with this and with the normal way the time for download and debug.