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The ROM is built with the default start address, which is 173000. It appears PROM 50 is the old Maclisp PROM tool, and PROM 555 is a newer version for Lisp machines.
55 lines
2.5 KiB
Plaintext
Executable File
55 lines
2.5 KiB
Plaintext
Executable File
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Instructions for using the prom programmer with a 3600.
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The prom programmer is connected to the 3600 using a serial port.
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It connects to the EIA Port 2 connector at the back of any 3600. A null
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modem and various sex change connectors are required and should already
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be in place. The recommended speed is 1200 baud which corresponds to
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position 7 of the rotary pot hidden in a hole in the back of the prom
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programmer. Faster speeds, such as 9600 baud, may be attempted but
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there is some specialization in the code to handle this and it has not
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been debugged as of this writing.
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To use the programmer physically insert the appropriate pack
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(carefully) and then turn it on. After the self test has completed, you
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need to place the programmer in remote mode. Do this by pushing
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<Select> <F> <1> <Start> <Start> . You must hit "Start" twice.
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The function call (PROGRAMMER-RESET) should be used to initialize the
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programmer, but it is perhaps of greater value in that it reassures you
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that the programmer is operating. If (PROGRAMMER-RESET) returns T you
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have an operational connection. If it hangs in "Serial In" you do not
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have an operative connection.
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If you are using the UniPak the device type will probably default to
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a 2716. You can set the device type using the function call:
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(PROGRAMMER-SET-TYPE "Prom Type String")
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For various current prom types look at the table at the top of the code
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file.
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To program a prom or a pal you need to have the data stored in a
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lisp array in ascending order and to have this array be the value of a
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symbol. To program a prom call:
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(PROGRAMMER-PROGRAM-PROM 'Symbol-with-array-value)
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This will load data into the programmer without programming the
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prom, then read it all out again and compare it. If the data checks ok
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the machine then prints something like:
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"Insert fresh prom and type Y when ready"
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Put your fresh prom in the programmer if you have not already done
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so and type <y> or <space> to begin the actual burning operation.
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Once the prom has been burnt the programmer will automatically be
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instructed to perform a Verify of the data now in the prom. If it
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verifies ok you will be notified of success, and if not of failure.
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------------------------------------------------------
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There are some other ways to use the stuff that involve the
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construction of "Prom Files" which can be quite useful. These are
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documented with the code and I will not restate them here as I'm just
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trying to give you a basic feel for how it works. You can look quickly
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over the code if you wish more information.
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