Wiggler for Intell Xscale processor family

This is the one and only Wiggler.

The Wiggler is a parallel port interface for either JTAG or BDM debugging. It is the least expensive of Macraigor’s line of OCD connection devices, yet it provides all the same functionality as our more expensive products. Slower than a Raven, it is a stable, easy to use device and is fully compatible with all of our Windows software. The Wiggler does not currently work with Linux.
One side of the Wiggler interfaces to the parallel port of a host IBM compatible PC and the other side connects to an OCD (On-Chip Debug) port of the target system. This port may be JTAG, E-JTAG, OnCE, COP, BDM, or any of several other types of connections. As with all Macraigor interface devices, the Wiggler can simultaneously
debug up to 255 devices on a single scan chain.

Theory of Operation - The Wiggler operates as a parallel to JTAG/BDM and JTAG/BDM to parallel converter between OCD signals and host debugging commands. Power is supplied by an external five volt power supply. The buffers that interface to the target OCD signals are powered by the target itself, allowing the Wiggler to automatically match target voltages between 5.0 V and 2.2 V. It supports configurable JTAG clock rates between 60 Khz and 380 Khz and will perform best with those ports that are EPP (enhanced parallel port) compatible. It does not work in ECP mode.

Physical - The Wiggler is in a black plastic housing, approximately 4 x 2.5 x 0.75 inches. One side has a standard, male, DB-25. The other side has a 5.5 inch ribbon cable ending in the appropriate header for the OCD target. It weighs approximately 8 ounces. The power supply as attached to the Wiggler via a three foot wire and the supply ends in an IEC connector.