BOOTBUG

6.Power up the system. 166Bug executes some self-checks and displays the debugger prompt "166-Bug>" (if 166Bug is in Board Mode). However, if the ENV command (Appendix A) has put 166Bug in System Mode, the system performs a selftest and tries to autoboot. Refer to the ENV and MENU commands. They are listed in Table 4-3.

If the confidence test fails, the test is aborted when the first fault is encountered. If possible, an appropriate message is displayed, and control then returns to the menu.

3

BOOTBUG

166BBug Implementation

The MVME166 board has a byte-wide EPROM in addition to the Flash memory used to contain the debugger and diagnostics firmware. The EPROM supplied contains the BootBug product (166BBug). Since Flash memory can be electronically erased, the firmware contained in this EPROM is a miniature version of the regular debugger product. It contains enough functionality to enable downloading of object code (by means of the VMEbus, serial port, SCSI bus, or the network) and reprogramming of the Flash memory.

The following table lists the the new commands available in the 166BBug product.

Command

Description

 

 

 

 

 

EXEC

Execute User Program

 

 

SETUP

Set "System" Parameters

 

 

 

Detailed descriptions of additional subset commands can be found in the Debugging Package for Motorola 68K CISC CPUs User’s Manual.

There is a jumper on the MVME166 board that controls the operation of the BootBug. If the jumper at J3 pins 7 and 8 is in place (GPI3), then the BootBug (which always executes at reset and powerup) will unconditionally jump to the debugger product contained in the Flash memory. If this jumper is removed, execution will continue in the (diminished functionality) BootBug.

Before using some of the features of the MVME166 BootBug, some parameters may need to be defined. For example, the SCSI ID, the Ethernet address, the clock speed of the board, or possibly the mapping of VMEbus. There is a new command provided for this purpose, the setup command. You should run this command and answer the prompts to be sure the board is configured properly before using any SCSI, VME, or Ethernet I/O.

MVME166IG/D2

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Motorola MVME166IG/D2, MVME166D2 manual Bootbug, 166BBug Implementation
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MVME166IG, MVME166D2, MVME166IG/D2 specifications

The Motorola MVME166IG/D2 is a pioneering embedded computer designed for high-performance applications in industrial and telecom sectors. This versatile computing platform is based on the PowerPC architecture, which ensures efficient processing capabilities and transfer of data, making it suitable for a wide range of applications, including real-time control, data acquisition, and system monitoring.

One of the main features of the MVME166IG/D2 is its powerful processor. The system is equipped with a PowerPC 603e processor, which offers a remarkable performance rate with a clock speed of up to 250 MHz. This high-speed processing capability allows for rapid data handling and processing, which is critical for demanding applications in real-time environments.

The MVME166IG/D2 also stands out due to its modular design. It supports multiple expansion slots that make it adaptable for different user needs. The system can accommodate additional cards or memory modules, allowing for increased versatility and capability in various operational scenarios.

In terms of connectivity, this embedded computer includes multiple communication interfaces such as Ethernet and serial ports, which facilitate seamless data transfer and communication within larger systems. This connectivity is crucial for integrating the device into existing industrial networks or for connecting with sensors and other equipment.

Another noteworthy characteristic of the MVME166IG/D2 is its robust build quality, which is essential for operation in challenging environments. The device is designed to endure high levels of shock and vibration, making it suitable for deployment in applications such as transportation or heavy machinery.

Additionally, the MVME166IG/D2 offers a range of software support which includes various real-time operating systems. This compatibility allows developers to choose the OS that best fits their application's requirements, enhancing the overall utility of the system.

In summary, the Motorola MVME166IG/D2 is a powerful, flexible embedded computing solution that excels in performance, modularity, and reliability. Its advanced features and durable design make it an ideal choice for industries that require precision, speed, and robustness in their computing solutions.
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