Hardware Reference
In-Depth Information
Figure 3.2
■
Wytec MiniDragon demo board
This monitor is used in several HCS12 demo boards from several companies. It facilitates
the writing, evaluation, and debugging of user programs.
Version 4.x.x of the D-Bug12 requires a host terminal program that supports XON/XOFF
software handshaking for proper operation. The HyperTerminal program that comes with Win-
dows 2000 and Windows XP can work with the D-Bug12. In addition, the terminal programs
bundled with MiniIDE, AsmIDE, and EmbeddedGNU IDE can all work with the D-Bug12 mon-
itor. The default baud rate out of reset is 9600. However, the baud rate can be set to a higher
value if a higher communication speed is desired.
The D-Bug12 monitor has four operating modes. When the D-Bug12 monitor first starts
(at power-up or reset), it reads the logic levels on the PAD0 and PAD1 pins to enter differ-
ent operating modes. The operating modes for the four logic level combinations are listed in
Table 3.1.
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