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Forum Index : Microcontroller and PC projects : I2C write issue

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lizby
Guru

Joined: 17/05/2016
Location: United States
Posts: 3761

Posted: 11:20pm 28 May 2026

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Why does the first I2C WRITE fail?

> option list
PicoMite MMBasic RP2350A V6.03.00RC9
OPTION SYSTEM SPI GP10,GP11,GP12
OPTION SYSTEM I2C GP4,GP5
OPTION FLASH SIZE 4194304
OPTION COLOURCODE ON
OPTION CPUSPEED (KHz) 340000
OPTION DISPLAY 48, 90
OPTION LCDPANEL ST7735, RLANDSCAPE,GP8,GP9,GP13
> I2C write &h40, 0, 1, 3
Error : Variable name
> i=3
> I2C write &h40, 0, 1, i
>

~
Edited 2026-05-29 09:21 by lizby

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phil99

Guru

Joined: 11/02/2018
Location: Australia
Posts: 3239

Posted: 12:37am 29 May 2026

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That was fixed in recent firmware.

> I2C2 write &h40, 0, 1, 3
>
> option list
PicoMiteVGA MMBasic RP2350A Edition V6.03.00RC12
OPTION SYSTEM I2C GP14,GP15

Mozzie found the same a week or two ago.
Edited 2026-05-29 10:49 by phil99

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