Posted: 10:08am 01 Apr 2026 Copy link to clipboard
Hansaplast Newbie
Hello
Why I get the following situation with the RP2350B Tiny XL Board?
option list WebMite MMBasic RP2350B Edition V6.01.00 OPTION FLASH SIZE 16777216 OPTION COLOURCODE ON OPTION PICO OFF OPTION CPUSPEED (KHz) 200000 OPTION HEARTBEAT PIN â ' > [CYW43] Failed to start CYW43 [CYW43] Failed to start CYW43 [CYW43] Failed to start CYW43 [CYW43] Failed to start CYW43 [CYW43] Failed to start CYW43 [CYW43] Failed to start CYW43 [CYW43] Failed to start CYW43 [CYW43] Failed to start CYW43 [CYW43] Failed to start CYW43
17:46:02 Port: COM4 removed
Disconnected
Same Failure with RP2350B Edition V6.02.00 and RP2350B Edition V6.02.01
Nice wishes..... Edited 2026-04-01 20:10 by Hansaplast
Posted: 11:25am 01 Apr 2026 Copy link to clipboard
matherp Guru
Does the board even have a CYW43 and is it wired to the same pins as a Pico2-W ? If not use the standard PicoMiteRP2350 firmware?
Posted: 11:40pm 01 Apr 2026 Copy link to clipboard
Hansaplast Newbie
Hello matherp
Sorry my fault,, load wrong firmware.
But there is a BUG in the PicoMiteRP2350V6.02.01.uf2 firmware,,, CPUSPEED is set to 200000 (kHz) and must be set to 150000 (kHz).
Regards Thank you for your support
Posted: 12:03am 02 Apr 2026 Copy link to clipboard
lizby Guru
Why do you think that? 150000 may be the Raspberry Pi recommendation, but 200000 has been found to be very stable, and I have a RP2350B running at 340000 without any issues.
Posted: 12:22am 02 Apr 2026 Copy link to clipboard
PhenixRising Guru
If you want to change it:
Posted: 01:05am 02 Apr 2026 Copy link to clipboard
phil99 Guru
The "official" CPU speed is overly conservative.
The 3 CPU speed options for the PicoMite VGA firmware are 252MHz, 315MHz and 378MHz and have never encountered a problem at 378MHz. So I use 378MHz for the standard PicoMites as well, though some are stable at 420MHz.
