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Forum Index : Microcontroller and PC projects : MMBasic V6.03.00 release candidates

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Posted: 12:15am 13 Jun 2026 Copy link to clipboard	JanVolk Guru

The color code in EDIT for MM.INFO$() does not work. The previously reported color codes with functions in EDIT now work.

Jan.

Posted: 03:50pm 13 Jun 2026 Copy link to clipboard	matherp Guru

V6.03.00RC19

PicoMiteRP2040V6.03.00RC19.zip
PicoMiteRP2350V6.03.00RC19a.zip
PicoMiteRP2350V6.03.00RC19b.zip

Various little tweaks.

Harm: I think this finally fixes the PIO bug. It was a real bug and nothing to do with the MIN version. Just a fluke whether it was seen or not.

The HDMIWEB version now supports:
640x480 at 252MHz, 315MHz and 378MHz, modes 1,2 and 5
720x400 modes 1,2 and 5
800x480 Modes 1 and 2
848x480 Modes 1 and 2
800x600 Modes 1 and 2
1024x600 modes 1,2 and 3

Normal RP2350 HDMI and VGA versions reserve 320x240x2 bytes (153600) for the framebuffer. This allows all the normal resolutions that have been supported. Web functionality requires a lot of RAM so the HDMI WEB reduces the framebuffer to 320x240x1 bytes (76800) which restricts the resolutions and modes available. However there is still a good selection there including all the critical ones (320x240x16colour). Personally I find 1024x600 mode 3 is perfect for the cheap 1024x600 HDMI displays with touch. This gives 16-colours @ 512x300 resolution perfect for editing.

Posted: 04:20pm 13 Jun 2026 Copy link to clipboard	dddns Guru

matherp said

Use the HDMIWEB build with a touch screen 1024x600 HDMI monitor and the On screen keyboard, print a case and you have a fully functional self-contained MMBasic tablet computer

Simply amazing, I'm not aware of anything better :)

I bought an OV7670 some years ago and never used it. Today was the day I tried it and couldn't get a clear picture, the colours are scrambled.
I tried different GP combinations but with same result.

Can somebody please confirm the camera is running and provide the details?
My setup:

> option list
PicoMite MMBasic USB RP2350B Edition V6.03.00RC18
OPTION SERIAL CONSOLE COM2,GP8,GP9
OPTION SYSTEM SPI GP2,GP3,GP0
OPTION LCD SPI GP14,GP15,GP12
OPTION SYSTEM I2C GP4,GP5
OPTION FLASH SIZE 16777216
OPTION COLOURCODE ON
OPTION KEYBOARD US
OPTION PICO OFF
OPTION CPUSPEED (KHz) 384000
OPTION LCDPANEL CONSOLE 7
OPTION DISPLAY 30, 53
OPTION LCDPANEL ILI9341, LANDSCAPE,GP16,GP17,GP18,GP11
OPTION TOUCH GP13,GP19
OPTION AUDIO GP6,GP7', ON PWM CHANNEL 3
OPTION RTC AUTO ENABLE
OPTION DEFAULT FONT 7, 1
> list system i2c
HEX 0 1 2 3 4 5 6 7 8 9 A B C D E F
00: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- 21 -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- 68 -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

With ILI9341buff it won't work at all. I understand, but not nice..

Will have a try with RC19 now

Posted: 04:48pm 13 Jun 2026 Copy link to clipboard	JanVolk Guru

Peter,

Problem LIST PINS still present.

> option list
WebMite MMBasic RP2350A Edition V6.03.00RC19
OPTION FLASH SIZE 4194304
OPTION COLOURCODE ON
OPTION CPUSPEED (KHz) 200000
> memory
Program:
0K ( 0%) Program (0 lines)
256K (100%) Free

Saved Variables:
16K (100%) Free

RAM:
0K ( 0%) 0 Variables
0K ( 0%) General
304K (100%) Free
> list pins
GP0 1 OFF
GP1 2 OFF
GP2 4 OFF
Press any key to continue
GP3 5 OFF
GP4 6 OFF
Press any key to continue
GP5 7 OFF
GP6 9 OFF
Press any key to continue
GP7 10 OFF
GP8 11 OFF
Press any key to continue
GP9 12 OFF
GP10 14 OFF
Press any key to continue
GP11 15 OFF
GP12 16 OFF
Press any key to continue
GP13 17 OFF
GP14 19 OFF
Press any key to continue
GP15 20 OFF
GP16 21 OFF
Press any key to continue
GP17 22 OFF
GP18 24 OFF
Press any key to continue
GP19 25 OFF
GP20 26 OFF
Press any key to continue
GP21 27 OFF
GP22 29 OFF
Press any key to continue
GP23 41 Boot Reserved : CYW43
GP24 42 Boot Reserved : CYW43
Press any key to continue
GP25 43 Boot Reserved : CYW43
GP26 31 OFF
Press any key to continue
GP27 32 OFF
GP28 34 OFF
Press any key to continue
GP29 44 Boot Reserved : CYW43
> list variables

Jan.

Posted: 05:27pm 13 Jun 2026 Copy link to clipboard	Volhout Guru

Hi Peter,

Victory !!! I tested the rc19 MIN version on 4 different platforms (GEEK, ZERO (2x), RP Pico) and on all the PIO FIFO works.

Later I will test rc19 MIN on a Game*Mite, and see if this is candidate for the final version for that platform (are the speed optimizations back in ?). I noticed it still has the larger A: drive. Nice. If it runs all games, Geoff's FM, Tom's FM, and my personal tools (thermal camera / MODBUS analyzer / temperature meter) then I will report back here.

Thank you for your persistence, finding what was wrong.
I searched for weeks, but had no clue.

Volhout
Edited 2026-06-14 03:30 by Volhout

Posted: 05:43pm 13 Jun 2026 Copy link to clipboard	Volhout Guru

Hi dddns,

Monday I can test with rc19 on a RP2040. But I have seen V60202 b5 working on an OV7670 (genuine RP pico). Originally I tried V60202 b2, and the camera was showing tearing at 252MHz. it needed 300+ MHz to work correct (tested on a SPI ILI9341).

After a little tweaking from Peter, it ran correct at 200MHz. I think that was b5.
I assume the 60300 series inherited the tweak.

You are using a 2350. Have not tested that one.

Volhout
Edited 2026-06-14 03:43 by Volhout

Posted: 07:05pm 13 Jun 2026 Copy link to clipboard	Volhout Guru

Hi Peter,

All Game*Mite games run (even your/Claude's Breakout), and PETSCII runs around 70 ms loops (14fps), pico-frog without sound artefacts, so the speed optimizations are in PicoMiteMinV60300rc19.

Thank you, this will be the version I plan for the release of the 2040 Game*Mite.

Only pending are my tools. But I assume these are okay since PIO works, and heap is large enough for the thermal camera.

Thank you,

Volhout

Posted: 07:44pm 13 Jun 2026 Copy link to clipboard	terekgabor Senior Member

Hi Peter!

RC19 freezes and immediately restarts if I use json$ function. (In program and command line also).

Webmite 2350 version, Picocalc with Pimoroni Pico Plus 2W, PSRAM enabled.

G@bor

Footnote added 2026-06-14 06:00 by terekgabor
Checked RC18 same issue occured.
RC17 is ok.

G@bor

Posted: 09:43pm 13 Jun 2026 Copy link to clipboard	matherp Guru

Quote this will be the version I plan for the release of the 2040 Game*Mite.

Hange on and you can use the actual release. Should be out within a week at the latest.

G@bor: please try this

PicoMite.zip
Edited 2026-06-14 07:56 by matherp

Posted: 07:09am 14 Jun 2026 Copy link to clipboard	terekgabor Senior Member

matherp said

Quote this will be the version I plan for the release of the 2040 Game*Mite.

Hange on and you can use the actual release. Should be out within a week at the latest.

G@bor: please try this

PicoMite.zip

Peter!

Same result, restart immediately.
Before it this is printing on screen:
PC=100AEBC8 LR=100A988B

G@bor

Posted: 07:22am 14 Jun 2026 Copy link to clipboard	matherp Guru

G@bor

Please can you capture the json just before attempting to decode it and post it here. You can use LONGSTRING PRINT to output it
Edited 2026-06-14 17:23 by matherp

Posted: 07:38am 14 Jun 2026 Copy link to clipboard	terekgabor Senior Member

Peter

I attached.
It is a json output from openweather API.

G@bor

json.zip

Posted: 07:50am 14 Jun 2026 Copy link to clipboard	matherp Guru

Try this

PicoMite.zip

Posted: 07:59am 14 Jun 2026 Copy link to clipboard	terekgabor Senior Member

Peter!

It works thanks, what caused this?

G@bor

Posted: 08:03am 14 Jun 2026 Copy link to clipboard	matherp Guru

Running out of system heap. The json parser is very hungry. I've recoded to use MMBasic heap in an "arena" so it grabs 4K at a time and then allocates the small json requests from that. It the adds another 4K when needed. That allows the normal ram and psram to all be used if necessary

Posted: 08:06am 14 Jun 2026 Copy link to clipboard	terekgabor Senior Member

Thanks! Sounds very good solution.

G@bor

Posted: 09:03am 14 Jun 2026 Copy link to clipboard	dddns Guru

I tried OV7670 with RC19 and a minimal config and different GPs for I2C:

> option list
PicoMite MMBasic USB RP2350B Edition V6.03.00RC19
OPTION SERIAL CONSOLE COM2,GP8,GP9
OPTION SYSTEM SPI GP14,GP15,GP12
OPTION SYSTEM I2C GP28,GP29
OPTION FLASH SIZE 16777216
OPTION COLOURCODE ON
OPTION KEYBOARD US
OPTION PICO OFF
OPTION CPUSPEED (KHz) 200000
OPTION LCDPANEL CONSOLE 7
OPTION DISPLAY 30, 53
OPTION LCDPANEL ILI9341, LANDSCAPE,GP16,GP17,GP18,GP11
OPTION DEFAULT FONT 7, 1
>
>
> camera open gp32,gp33,gp34,gp35,gp36,gp20
> timer=0 : camera capture 2 : ? timer : save image "a:cam_test.bmp"
204.174

Blue looks ok but lilac should be white:

Posted: 09:09am 14 Jun 2026 Copy link to clipboard	matherp Guru

Can you try it with a rp2040 to see if it is a H/W or S/W issue? Do you have pullups on the I2C pins?
Edited 2026-06-14 19:10 by matherp

Posted: 12:04pm 14 Jun 2026 Copy link to clipboard	dddns Guru

The camera runs perfect with this if cpuspeed is >=252000.

PicoMite MMBasic RP2040 V6.03.00RC19
OPTION SYSTEM SPI GP18,GP19,GP16
OPTION SYSTEM I2C GP14,GP15
OPTION FLASH SIZE 16777216
OPTION COLOURCODE ON
OPTION CPUSPEED (KHz) 252000
OPTION LCDPANEL CONSOLE 7
OPTION DISPLAY 30, 53
OPTION LCDPANEL ILI9341, LANDSCAPE,GP20,GP21,GP22
OPTION DEFAULT FONT 7, 1

I will now check with different cpuspeed with the PGA2350.

Posted: 01:29pm 14 Jun 2026 Copy link to clipboard	matherp Guru

I'm running RP2350 at 200MHz with no capture issues but it is clearly now working for you so that's good

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