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Forum Index : Microcontroller and PC projects : MICROMITE EXPLORE 64

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kiaandre
Newbie

Joined: 21/11/2017
Location: France
Posts: 18
Posted: 03:23pm 22 Mar 2020
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Hello, Micromite Explore 64, how do you use the LOAD and SAVE commands version 5.05.02, impossible to save or load a file, do you have any idea on the cpu speed settings etc, I have OPTION SDCARD 12, 14 - THANK YOU
 
panky

Guru

Joined: 02/10/2012
Location: Australia
Posts: 1094
Posted: 04:52am 23 Mar 2020
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@kiaandre,

According to the Silicon Chip article, you have the pins correct for the SD card. It does say however, that some SD cards may give problems, particularly fast or large capacity SD cards so try a few different cards.

The best way to test the cards is with the FILES command from the command prompt - this should list all the files on the SD card.

To test SAVE and LOAD, create a very simple one or twoline basic program using the built in editor, for example
PRINT "Hello world"

then you can save this to the SD card with the command

SAVE "test1.bas"

If you now run the FILES command, you should see test1.bas listed.

To load a program from the SD card back into the Micromite, run the LOAD command

LOAD "test1.bas"

If you now do a LIST command from the command prompt, you will see your program

PRINT "Hello world"

shown on the screen

Re CPU speed, there are several varients of the PIC32MX470 but I think that Gogster ships the Explore 64 with 120MHz chips

panky

PS. Do you have a copy of the Silicon Chip magazine article on the Explore 64 Micromite?
Edited 2020-03-23 14:54 by panky
... almost all of the Maximites, the MicromMites, the MM Extremes, the ArmMites, the PicoMite and loving it!
 
goc30

Guru

Joined: 12/04/2017
Location: France
Posts: 425
Posted: 08:15am 23 Mar 2020
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Hi all
I have same pb with my Explorer64
I write small prog
after that, save function seem to be correct (after reading my sdcard on PC, file is same as prog in explorer
But "Load" function is bad. It send msg error

Error: Invalid in a program


I don't understand, because other prog copied from PC, work correctly
 
Grogster

Admin Group

Joined: 31/12/2012
Location: New Zealand
Posts: 9030
Posted: 08:16am 23 Mar 2020
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Yes, I ship the kits or now assembled modules with the 120MHz part.
By default, the E64 or E100 start-up at 100MHz.
If you want 120MHz, you will have to ask for it specifically at the command prompt with CPU 120.  Most projects don't need that though, and 100MHz is usually fine.

As a test, insert SD card and issue the command FILES at the command-prompt.
You should see a list of files on the SD card, assuming it has something on it.

If you get an error, report it here.
Smoke makes things work. When the smoke gets out, it stops!
 
kiaandre
Newbie

Joined: 21/11/2017
Location: France
Posts: 18
Posted: 08:55am 23 Mar 2020
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Hello, Micromite Explore 64, I redo several tests for the backup on the SD card that works and I can see the files on the card with the FILES command, on the other hand the LOAD command returns the error: INVALID IN A PROGRAM - THANKS FOR YOUR HEL
 
erbp
Senior Member

Joined: 03/05/2016
Location: Australia
Posts: 186
Posted: 09:28am 23 Mar 2020
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  kiaandre said  Hello, Micromite Explore 64, I redo several tests for the backup on the SD card that works and I can see the files on the card with the FILES command, on the other hand the LOAD command returns the error: INVALID IN A PROGRAM - THANKS FOR YOUR HEL


Hi kiaandre,

I think there is a bug with the LOAD command. You can use RUN "filename" which actually does a load and then executes the loaded program, or you can try the LOAD command with the R option (R for Run). So LOAD "filename", R  which also does a load followed by executing the program just loaded. Be sure to include the comma between the filename and the R.

Cheers,
Phil.
 
kiaandre
Newbie

Joined: 21/11/2017
Location: France
Posts: 18
Posted: 09:50am 23 Mar 2020
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You are right, the RUN command followed by the name of the file WORKS PERFECTLY, there is surely a bug on the LOAD function, thank you
 
led-bloon

Senior Member

Joined: 21/12/2014
Location: Australia
Posts: 202
Posted: 11:31am 23 Mar 2020
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FYI v5.05.01 works perfectly
Regards to all (and be safe)
led
Miss you George
 
kiaandre
Newbie

Joined: 21/11/2017
Location: France
Posts: 18
Posted: 12:56pm 23 Mar 2020
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To complete I use the firmware version 5.05.02 - Thank you all (and be careful)
 
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