Motorola MCPN750A, IH5 manual PPCBug

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PPCBug

❏Breakpoint and tracing capabilities

❏A powerful assembler and disassembler useful for patching programs

❏A self-test at power-up feature which verifies the integrity of the system

PPCBug consists of three parts:

❏A command-driven, user-interactive software debugger, described in the PPCBug Firmware Package User’s Manual . It is hereafter referred to as “the debugger” or “PPCBug”.

❏A command-driven diagnostics package for the MCPN750A hardware, hereafter referred to as “the diagnostics.” The diagnostics package is described in the PPCBug Diagnostics Manual.

❏A user interface or debug/diagnostics monitor that accepts commands from the system console terminal.

When using PPCBug, you operate out of either the debugger directory or the diagnostic directory.

❏If you are in the debugger directory, the debugger prompt PPC1- Bug> is displayed and you have all of the debugger commands at your disposal.

❏If you are in the diagnostic directory, the diagnostic prompt PPC1- Diag> is displayed and you have all of the diagnostic commands at your disposal as well as all of the debugger commands.

Use the SD command to switch back and forth between these directories.

Because PPCBug is command-driven, it performs its various operations in response to user commands entered at the keyboard. When you enter a command, PPCBug executes the command and the prompt reappears. However, if you enter a command that causes execution of user target code (e.g., GO), then control may or may not return to PPCBug, depending on the outcome of the user program.

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