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TB020 Rev1 On Memory and MasterCAM Pharlap Errors
Overview
This document describes the steps to take when encountering problems trying to start the MasterCAM DOS
v3 21 software MasterCAM like other software programs needs a certain amount of memory available for its
own use When the software recognizes that it does not have what it needs it complains by dumping what
seems to be a lot of useless information to the screen before abruptly exiting These techniques are also
appropriate in cases where there is insufficient memory to post a lengthy g code program
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The typical scenario
You have just installed MasterCAM on a control and find you are running into errors trying to initialize the
program In these cases you will most likely see information flash quickly before returning to the CNC7 Cams
menu A typical message is displayed below
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Phar Lap err 10013 Insufficient conventional memory for data buffers
589600 bytes conventional memory available
512000 bytes conventional memory left free
MINREAL 7D00h MAXREAL 7D00h
86096 bytes conventional memory needed
12576 bytes for application program
REALBREAK 00001838h
60944 bytes for 386|DOS Extender code and data
12576 bytes for buffers in conv mem
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What to do about it
1 Exit to DOS from the main screen of the control software by using CTRL + ALT + X
all three keys pressed
at the same time
2 Change to the c
c directory with cd
c ENTER
3 Type cfig386 cam386 minreal 24000 maxreal 24000 ENTER
4 Reboot the control
5 If there is still a problem follow step 3 again replacing the 24000 with 22000
6 Continue with this technique lowering the value supplied by 2000
7 Stop if you have reached a value of 16000 and are still having problems In this case Centroid support
technicians will want a copy of your autoexec bat
and config sys
files for further troubleshooting
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Document History
Rev1 Created on 1998 02 26