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.
3.4.1 The D-Bug12 Operating Modes
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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