Technological Arts Inc.

Product Info

This low-cost USB BDM pod supports virtually all HC12 and HCS12 chips running at 5 Volts, and comes with flexible power options. It is powered from your PC's USB port, and can also power your target board at 5V. To keep the cost low, and to provide easy access to options, this product is not housed in a case.

As with our other BDM pods, this one is running Freescale's D-Bug12 in Pod Mode.

Features:

• low-cost BDM pods for use with all HC12 and 9S12 target boards running at 5 Volts
• power for target board can come from USB or your own supply
• use Freescale D-Bug12 commands on target board
• supports hardware and software breakpoints in target
• USB interface to PC (or any platform with terminal emulation capability)
• 10-pin ribbon cable (superset of standard 6-pin BDM pinout) plugs into target BDM connector
• compatible with all Adapt12/9S12 boards (except those using 9S12NE64)
• no power supply required-- draws power from USB port
• includes power and activity indicator LEDs
• based on a 9S12DP512 MCU running D-Bug12 version 4.0
• supports baud rates up to 115K (default is 9600 baud)
• compatible with NoICE12 debugger
• equipped with non-slip rubber feet
• supplied with USB cable
• find links to D-Bug12 Reference Guide, schematic, and application notes by clicking blue Resources tab, above

Chips supported:

68HC812A4, 68HC912B32, 68HC912BC32, 68HC912D60/A, 68HC912DA128/A, 68HC912DG128/A, 68HC912DT128/A, and all current 9S12 derivatives (supports 5V operation only). Can communicate with 9S12XD chips, but does not support Flash erase/program nor the XGATE co-processor. MicroBDM12XG is the recommended alternative for 9S12XD and 9S12XA chips.

Product Details

Here's how to use MicroBDM12LX5-UR:

Just connect the supplied ribbon cable to the target board's "BDM IN" connector. The target board could be any Adapt12-family board, or any other 'HC12 or 9S12 board that has a 6- or 10-pin BDM interface connector. Just be sure to line up the pin 1 indicator with pin 1 on the BDM connector. The host for the BDM Pod can be any type of computer running a terminal program. The BDM pod will receive its 5V operating power from the host USB port. A few of suggested Windows terminal programs are TeraTermPro, MiniIDE, and Hyperterminal. For details on using other terminal programs with D-Bug12, refer to the D-Bug12 Manual.

The big advantage of using a BDM pod is that it frees up all of the target board's memory for your application, while still offering you debugging capability. You can examine memory and registers, disassemble a memory range, set breakpoints, and do tracing in the target board's on-chip memory, among other things.

What's inside:

MicroBDM12LX5-UR is a minimal 9S12 board, running D-Bug12 v4.0. It consist of the MCU, a crystal, a USB retrofit circuit, and a few miscellaneous components, all mounted on a small board less than 2 inches square. A 10-pin ribbon cable is attached to one edge, and a 5-pin miniB USB connector is on the opposite edge. A USB cable is included for the host interface.

Firmware Updates:

If DBug12 ever needs to be updated, it can be done using another BDM pod. By moving two jumpers to make the ribbon cable function as BDM IN, the board becomes a target, and Flash can be erased and re-programmed as needed.

Resources

Schematic Diagram

Documentation, files and application notes