5 PPCBug

25.Verifies the configuration data that is resident in NVRAM, and displays a warning message if the verification failed.

26.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.

27.Displays the BUS clock speed, verifies that the BUS clock speed matches the configuration data, and displays a warning message if the verification fails.

28.Probes PCI bus for supported network devices.

29.Probes PCI bus for supported mass storage devices.

30.Initializes the memory/IO addresses for the supported PCI bus devices.

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

32.Extinguishes the board fail LED, if Self-Test passed, and outputs any warning messages.

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

34.Executes the debugger monitor (issues the PPC7-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 PPC7-Bugprompt appears on the screen, the debugger is ready to accept debugger commands. When the PPC7-Diagprompt appears on the screen, the debugger is ready to accept diagnostics commands. To switch from one mode to the other, enter SD.

What you enter 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.

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 been specified, control returns to the debugger when the breakpoint is encountered during execution of the user program. Alternately, the user program could return to the debugger by means of the System Call Handler routine RETURN. For more about this, refer to the GD, GO, and GT command descriptions in the PPCBug Firmware Package User’s Manual.

A debugger command is made up of the following parts:

The command name, either uppercase or lowercase (for example, MD or md).

Any required arguments, as specified by command.

At least one space before the first argument. Precede all other arguments with either a space or comma.

One or more options. Precede an option or a string of options with a semicolon (;). If no option is entered, the command’s default option conditions are used.

42PrPMC800/800ET Processor PMC Module Installation and Use (PrPMC800A/IH5)

Page 62
Image 62
Motorola PRPMC800A/IH5, PrPMC800/800ET Processor PMC Module manual Using PPCBug

PRPMC800A/IH5, PrPMC800/800ET Processor PMC Module specifications

The Motorola PrPMC800/800ET Processor PMC Module, specifically the PRPMC800A/IH5 variant, represents a significant advancement in embedded processing technology. Often utilized in telecommunications, aerospace, and defense applications, this PMC module is designed to provide robust performance in demanding environments, making it suitable for high-speed data processing and communication tasks.

At the core of the PrPMC800 module is the PowerPC 750 architecture, known for its efficiency and power management capabilities. This 32-bit RISC processor is clocked at speeds reaching up to 800 MHz, allowing it to handle complex computations and multitasking scenarios effectively. The processor architecture supports a variety of software environments, including real-time operating systems and VxWorks, which enhances its adaptability across diverse applications.

One of the standout features of the PRPMC800A/IH5 module is its memory capacity. The module supports up to 1 GB of SDRAM, offering ample space for processing large datasets and executing multiple applications simultaneously. Furthermore, the integrated PCI bus facilitates high-speed connectivity with other modules and components in the system, ensuring rapid data transfer rates essential for real-time processing tasks.

An important characteristic of the PrPMC800 module is its thermal and environmental resilience. Designed with military-grade standards, it operates reliably in extreme conditions, including high temperatures and vibrations. This makes it particularly suitable for rugged applications where standard commercial-grade processors may fail.

The module also incorporates advanced I/O capabilities, featuring dual Gigabit Ethernet ports which enhance networking performance. Additional serial ports and interrupt handling further improve the module's versatility, allowing it to interface seamlessly with various peripheral devices and systems.

In summary, the Motorola PrPMC800/800ET Processor PMC Module, represented by the PRPMC800A/IH5 model, is an exemplary solution for applications requiring high performance, reliability, and adaptability. With its powerful PowerPC architecture, generous memory capacity, robust I/O capabilities, and proven ruggedness, this processor module stands out as a preferred choice for engineers and developers working in critical industries.