Jtagger Versatile Multiprogrammer for FPGAs, MCUs, etc.

Jtagger Versatile Multiprogrammer for FPGAs, MCUs, etc.

Well, it's not really just a jtagger, but I ' ve been calling it.

It ' s also been christened the Bit Quacker ... uh, because it quacks? *shrug*

The basis for this design is the sort of the Bus Blaster, with a few nice mods.

It's smaller (I ' m working on V2, which could or may isn't ever be finished, which'll be even smaller),

It has an FPGA instead of a CPLD (not only more versatile, but would never be worn off by writes and rewrites),

It ' s 5v-capable, and it can even do up to 13V on one pin, to enable programming microcontrollers with HVP.

The idea is, this can being adapted to program (as close to literally as possible)

Any serial-programmed logic device, and debugging can is done as well.

In its most basic form, it's compatible with ft2232-compatible JTAG tools,

As a simple firmware can is loaded to the FPGA, that just passes the mpsse signals straight through.

The second port on the FT2232 can program the FPGA, so it ' s self-programming

(It does, however, has a flash memory, so it can is preloaded with a firmware to skip this step).

Jtagger Versatile Multiprogrammer for FPGAs, MCUs, etc.