TAILIEUCHUNG - Building Robots Part 8

116 CHAPTER 7. IC MANUAL IC was designed and implemented by Randy Sargent with the assistance of Fred Martin. Getting Started This section describes how to boot IC on the board using the MIT Athena computer network. Commands that are typed to the computer are shown underlined for visibility. 1. Add the directory to the execution path. Type the following command at the Unix prompt: add 2. Plug the board into the computer. Using the modular phone cable, plug the modied end into the DEC or VAX's printer port (indicated by an icon of a computer printer). Make sure that the exposed. | 116 CHAPTER 7. IC MANUAL IC was designed and implemented by Randy Sargent with the assistance of Fred Martin. Getting started This section describes how to boot IC on the board using the MIT Athena computer network. Commands that are typed to the computer are shown underlined for visibility. 1. Add the directory to the execution path. Type the following command at the Unix prompt add 2. Plug the board into the computer. Using the modular phone cable plug the modified end into the DEC or VAX s printer port indicated by an icon of a computer printer . Make sure that the exposed wires of the plug are facing up. If using the VAX2000 computer use the 9-pin plug adapter. Plug the other end into the modular jack on the 6811 board. Before the board is turned on check that the board s green LED labelled SER Rev is lit. If it is not lit there is a problem with the connection. 3. Initialize the board. The Erst step is using IC is to load the run-time module called the p-code program into the board. If the p-code is already loaded this step may be skipped. If not Switch the board on. Do not hit the reset button at this time. When the board is switched on the yellow LED labelled SER XMIT should flash briefly and then stay off. If the yellow LED is lit the board is not ready to be initialized. Turn the board off and on and try again. From the Unix prompt type init bd A process should begin that downloads the p-code program to the board. This will take about 15 to 30 seconds to complete. If the program exits with an error message check the connection and try again. 4. Reset the board. Press the reset button on the board to reset it. The following should happen a The board will emit a brief beep b A version message will be printed on the LCD screen . IC . USING IC 117 c The yellow LED will turn on brightly. If these things do not happen repeat step 3 to initialize the board. 5. Begin IC. From the Unix prompt type IC At this point IC will boot .

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