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Forum Index : Microcontroller and PC projects : Maximite Commands Failure
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| Gdavid Newbie  Joined: 13/11/2016 Location: AustraliaPosts: 4 |
Hi I'm new to the forum and thanks to Glenn for the welcome. I have retrieved my Colour Maximite from the archives after about 2-3 years; installed MMBASIC 4.5 and set up TERATERM for my laptop - checked baud rate, Com port, screen size. My apologies if this is a blast from the past but the CMM is adequate for the tasks in hand. My MMBASIC skills are at newbie level but the CMM was working previously. The problem is that apart from some print commands and maths functions no other MMBasic commands are working. I can't change directory or list with FILES message; can't find DRIVE or SD card. Failing commands produce error messages; syntax errors; unrecognised command. Could anyone help with suggestions or is the micro likely to be in a terminal condition? Your help would be appreciated. G'david |
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| JohnS Guru  Joined: 18/11/2011 Location: United KingdomPosts: 4034 |
I guess it's fine. Don't be too concerned and definitely don't give up at this stage. Exactly which file did you install? Then, show the output when it boots and commands you type with their output. Right now we know next to nothing despite quite a long post... John |
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OA47 Guru Joined: 11/04/2012 Location: AustraliaPosts: 982 |
G'david, it seems from my interpretation that you are trying to execute basic commands from the command prompt. You may need to type EDIT to establish a programming environment. GM |
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panky Guru Joined: 02/10/2012 Location: AustraliaPosts: 1114 |
G'david, As John said, what is the power on/reset message? If this is the standard message (can't remember exact wording but should include Maximite and the version number) then MMBasic is probably working ok so you need to look at possible external factors. Using MMEdit, write a simple loop program like 10 for x=1 to 50 20 print x 30 next x download to the Maximite and enter RUN If this spews out 50 lines with numbers from 1 to 50 then MMBasic is definately ok. So, next step, pull out you 4.5 manual and read! ☺☺ Good luck but give us some more detail with any program you are trying to run - I am sure someone here can assist you, Doug. ... almost all of the Maximites, the MicromMites, the MM Extremes, the ArmMites, the PicoMite and loving it! |
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TassyJim Guru Joined: 07/08/2011 Location: AustraliaPosts: 6269 |
If you are having problem with the CMM itself, the first thing to check is C10 and the soldering associated with it. As far as the CD card, check the soldering around it too and try a different card. Worry about that once you are satisfied that the rest is working. Although the CMM hasn't changed, has your PC changed to a different version of Windows. You might need to reload the driver. "Syntax errors and unrecognised commands" looks like a comms error (if you are using the correct MMBasic manual). Jim VK7JH MMedit |
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| Gdavid Newbie Joined: 13/11/2016 Location: AustraliaPosts: 4 |
Thanks for the helpful suggestions. Problems are far from resolved but some progress has been made. To make sure the problem wasn't with serial driver, terminal emulation and USB I tested the CMM with a VGA screen and PS2 keyboard. There was no difference with this arrangement. I also realised that I had forgotten the basics re needing the PRINT command to display some material on screen. I can now use the Predefined Read Only Variable commands (P23) and Function commands (P46-53) Panky's suggested program works PRINT HEX$ 72 returns 48 PRINT MM.VER returns 4.05 (sic) FILES returns files and directories in B:\ - suggests SD card is working FILES "B:\COLOUR~1' lists files in this directory I haven't managed to access files in A: EDIT "B:\COLOUR~1\JULIA.BAS" lists program on screen (a fractal drawing program) F2:RUN returns - Error: Cannot access the SD card > RUN "B:\TEST.BAS" Error: Cannot find file CIRCLE (100, 100), 50, CYAN moves to '>' > LOAD "HELLO.BAS" Error: Cannot find file > LOAD "b:\HELLO.BAS" Error: Cannot find file Though I am succeeding in getting a few commands to work most won't and I find syntax directions often confusing. I haven't yet tackled my soldering Any suggestions? David |
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BobD Guru Joined: 07/12/2011 Location: AustraliaPosts: 935 |
It's a long while since I played with a Maximite. However, I seem to recall some of the file names were case sensitive. Try typing the file names in lower case. Many of the commands do not support using a drive letter. Change to the drive using the DRIVE command. Look very carefully at the structure of each command in the manual. Try [code]drive "B:" load "hello.bas"[/code] |
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| Gdavid Newbie Joined: 13/11/2016 Location: AustraliaPosts: 4 |
Bob I appear to be able to change to A: using DRIVE but can't list files with FILES > DRIVE "A:" > FILES A:\ 0 files, 167116 bytes free > PRINT MM.DRIVE$ A: I can return to B: and list files with FILES > DRIVE "B:": FILES B:\ <DIR> 2012-0~1 <DIR> ANDROI~1 <DIR> COLOUR~1 <DIR> DCIM etc Case doesn't vary operation of the LOAD command > drive "B:": LOAD "hello.bas" Error: Cannot find file > drive "b:": load "HELLO.BAS" Error: Cannot find file > LOAD "B:\HELLO.BAS" Error: Cannot find file > Thanks for your suggestions David |
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| JohnS Guru Joined: 18/11/2011 Location: United KingdomPosts: 4034 |
That looks like you have an empty A: and a B: that's reused from somewhere (and has no BAS files?). So, looks working. When you used EDIT it also sounds like it was working. Try a simple short program (count to 10 or whatever). I don't know if the version of mmbasic you have needs line numbers - early ones do (standard for BASIC). John |
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| Gdavid Newbie Joined: 13/11/2016 Location: AustraliaPosts: 4 |
John I agree but if there were no files in A: drive MMBasic shouldn't run at all. Autorun.bas would be missing???? Line numbers are optional but in command prompt mode allow a sequence of command on separate lines to be run with return I am currently reloading MMBasic as some BAS files in B: seem to be working and it may be that HELLO.BAS is corrupt. David |
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| JohnS Guru Joined: 18/11/2011 Location: United KingdomPosts: 4034 |
As I recall AUTORUN.BAS is optional :) MMBASIC lives in the flash and just runs from there when the CPU is reset. If it can't find autorun it prompts (with '>'). John |
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