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Volhout
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Joined: 05/03/2018
Location: Netherlands
Posts: 5859

Posted: 06:48pm 12 Apr 2026

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Hi Peter,

I checked several images. This happens in all of them. first tested is V6.00.01.
There is no relation with a C drive.

After reset there is an MMBasic startup time. When the LCD is powered, but before it is initialized by MMbasic, the LCD is bright white. When MMBasic initalizes the LCD it is becomes dark. This behaviour has always been the same.

When the "picofrog" problem shows, the "white time" of the LCD is far longer (seconds). And after initialization the SD card is not accessible. And that is why the watchdog in the menu kicks in (timeout on SD card).

For now, please ignore this "picofrog" problem. It could very well be a hardware problem. Since all versions have it. The only thing you could look into is what logic is behind the execution of the program in main memory after a watchdog or reset, and not the menu in flash slot 1. That is something that could be withing MMBasic.

I will look into the "hardware problem".
Picofrog is multi platform, maybe there is trigger to make it think it is not running on a Game*Mite, and then it could try other controllers (i.e. NES). Maybe reprogramming GPIO pins in conflict with Game*Mite hardware (SD card CS ?).

But the "white time" of the LCD is also a thing to look at. Why does it take seconds longer to init the LCD.

Your "mini" seems not be causing this problem.

Volhout

PicomiteVGA PETSCII ROBOTS

Volhout
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Joined: 05/03/2018
Location: Netherlands
Posts: 5859

Posted: 03:54pm 13 Apr 2026

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Hi Peter,

It was a hardware problem. The SD card adapter was flash. I have no idea how something like that could be so respectabel, but it was.
Anyway… issue solved.

Volhout

PicomiteVGA PETSCII ROBOTS

matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 11215

Posted: 04:03pm 13 Apr 2026

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That's bizarre, anyway good to know - thanks
Edited 2026-04-14 02:56 by matherp

Volhout
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Joined: 05/03/2018
Location: Netherlands
Posts: 5859

Posted: 06:43pm 14 Apr 2026

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@Peter,

I assume you did not include tilemap in the last mini release, correct ?

Volhout

PicomiteVGA PETSCII ROBOTS

matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 11215

Posted: 06:51pm 14 Apr 2026

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No: it is there in the MIN build just posted on the 6.02.02 beta thread
Edited 2026-04-15 04:51 by matherp

Briano
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Joined: 20/01/2026
Location: Canada
Posts: 12

Posted: 01:38pm 17 Apr 2026

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toml_12953 said

Here are instructions for Linux (I use the Linux subsystem in Windows)

BUILD PICOCALC FIRMWARE

cd ~/picocalc/PicoMiteAllVersions
mkdir build
cd build
cmake ..
make

Tom,
I followed these steps on my P400 and it seemed to complete normally. Where do I find the uf2 files?
Thanks.....Brian

Update: found it! In the build folder. Don't know how I missed it.
Edited 2026-04-18 09:19 by Briano

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