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PilotPirx

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Joined: 03/11/2020
Location: Germany
Posts: 130

Posted: 11:04am 12 Aug 2026

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I'm using PicoCalc with MMBasic version V6.03.00.
First of all, congratulations on this great version and the successful integration of PicoCalc.
However, I’m experiencing the following problem:
When PicoCalc runs with an MMBasic program for more than about 2 hours (nothing happens after one hour), I can no longer access the keyboard. The Basic program continues to run flawlessly, but no longer accepts keyboard commands. I’ve tried this with several programs. What could be causing this?

My options are:

PicoMite MMBasic RP2350A V6.03.00
OPTION LCD SPI GP10,GP11,GP12
OPTION SYSTEM I2C GP6,GP7, SLOW
OPTION AUTORUN 1
OPTION FLASH SIZE 4194304
OPTION COLOURCODE ON
OPTION DEFAULT COLOURS GREEN, BLACK
OPTION KEYBOARD PICOCALC
OPTION CPUSPEED (KHz) 252000
OPTION LCDPANEL CONSOLE ,, FF00
OPTION DISPLAY 26, 40
OPTION LCDPANEL ST7365P, PORTRAIT,GP14,GP15,GP13
OPTION BACKLIGHT LCD 30
OPTION SDCARD GP17, GP18, GP19, GP16
OPTION AUDIO GP26,GP27', ON PWM CHANNEL 5
OPTION RTC AUTO ENABLE
OPTION COUNT GP3,GP20,GP21,GP22
OPTION MODBUFF ENABLE 192
OPTION F1 RUN "a:PN.bas"

OPTION PLATFORM PicoCalc

homa

Guru

Joined: 05/11/2021
Location: Germany
Posts: 665

Posted: 04:50pm 12 Aug 2026

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> option list
PicoMite MMBasic RP2350A V6.03.01
OPTION LCD SPI GP10,GP11,GP12
OPTION SYSTEM I2C GP6,GP7, SLOW
OPTION FLASH SIZE 4194304
OPTION LIBRARY_FLASH_SIZE 4B000
OPTION COLOURCODE ON
OPTION DEFAULT COLOURS GREEN, BLACK
OPTION KEYBOARD PICOCALC
OPTION HEARTBEAT OFF
OPTION CPUSPEED (KHz) 252000
OPTION LCDPANEL CONSOLE ,, FF00
OPTION DISPLAY 26, 40
OPTION LCDPANEL ST7365P, PORTRAIT,GP14,GP15,GP13
OPTION BACKLIGHT KBD 32
OPTION BACKLIGHT LCD 16
OPTION SDCARD GP17, GP18, GP19, GP16
OPTION AUDIO GP26,GP27', ON PWM CHANNEL 5
OPTION MODBUFF ENABLE 192
OPTION PLATFORM PicoCalc
>

And I’ve installed PicoCalc – bios: 1.6!

No issues with the runtime or keyboard input. But I’ll be happy to test it for you this evening.
Perhaps "OPTION RTC AUTO ENABLE" is the problem? Or have you fitted an additional RTC?

I’ve recently been having a problem where I have to remove the SD card to start it up?! Then I put it back in and everything’s fine. Does anyone have any advice?

Matthias

matherp
Guru

Joined: 11/12/2012
Location: United Kingdom
Posts: 11743

Posted: 05:04pm 12 Aug 2026

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Quote Then I put it back in and everything’s fine. Does anyone have any advice?

This is probably the problem that someone else was seeing. From what I remember it was fixed by a capacitor across the power rails.

On the keyboard issue, my understanding is that the keyboard S/W (BIOS) has always been flakey. Are you running 1.6? If not then definitely update. If you are I suggest you post on the PicoCalc forum. Ernst updated the BIOS to 1.6 and he may see a message there. He is the BIOS guru
Edited 2026-08-13 03:24 by matherp

homa

Guru

Joined: 05/11/2021
Location: Germany
Posts: 665

Posted: 07:36pm 12 Aug 2026

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OPTION PLATFORM PicoCalc
>
> print time$
00:14:48
> print time$
02:49:15
> no problem!

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