The Raven is a parallel port interface for either JTAG or BDM debugging. Faster than a Wiggler, it is a stable, easy to use device and is fully compatible with all of our software.

The Raven is a mid-cost interface used in the design, debug, and programming of microprocessor based embedded systems. One side of the Raven 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 Raven can simultaneously debug up to 255 devices on a single scan chain.

Theory of Operation - The Raven 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 Raven to automatically match target voltages between 5.0 V and 2.2 V. It supports
configurable JTAG clock rates between 60 KHz and 8MHz and will perform best with those ports that are EPP (enhanced parallel port) compatible but will also work with most other parallel port modes

Physical - The Raven 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 Raven via a three foot wire and the supply ends in an IEC connector.

Datenblatt

Raven 14 pin ARM JTAG header

User Manual

Raven 14 pin ARM JTAG header