Motorola MVME2400 Series Instrukcja Obsługi Pobierz pdf (Strona 95)

Using PPCBug

http://www.mcg.mot.com/literature 5-5

27. Calculates and displays the MPU clock speed, verifies that the MPU

clock speed matches the configuration data, and displays a warning

message if the verification fails.

28. Displays the BUS clock speed, verifies that the BUS clock speed

matches the configuration data, and displays a warning message if

the verification fails.

29. Probes PCI bus for supported network devices.

30. Probes PCI bus for supported mass storage devices.

31. Initializes the memory/IO addresses for the supported PCI bus

devices.

32. Executes Self-Test, if so configured. (Default is no Self-Test.)

33. Extinguishes the board fail LED, if Self-Test passed, and outputs

any warning messages.

34. Executes boot program, if so configured. (Default is no boot.)

35. Executes the debugger monitor (i.e., issues the

PPC4-Bug> prompt).

Using PPCBug

PPCBug is command-driven; it performs its various operations in response

to commands that you enter at the keyboard. When the PPC4-Bug prompt

appears on the screen, the debugger is ready to accept debugger

commands. When the PPC4-Diag prompt appears on the screen, the

debugger is ready to accept diagnostics commands. To switch from one

mode to the other, enter SD.

What you key in is stored in an internal buffer. Execution begins only after

you press the Return or Enter key. This allows you to correct entry errors,

if necessary, with the control characters described in the PPCBug

Firmware Package User’s Manual, Chapter 1.

After the debugger executes the command, the prompt reappears.

However, if the command causes execution of user target code (for

example GO) then control may or may not return to the debugger,

depending on what the user program does. For example, if a breakpoint has

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Motorola MVME2400 Series Instrukcja Obsługi Strona 95