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Forum Index : Microcontroller and PC projects : RP2350-PIZERO del Waveshare.
| Author | Message | ||||
| Fede Newbie  Joined: 09/03/2026 Location: SpainPosts: 23 |
Hello. Is it possible to configure an RP2350-PiZero to run MMBasic and use its built-in HDMI and USB ports? I've read the manual extensively but can't find where to configure the GP settings for HDMI. I've only found OPTION HDMI PINS, but I don't think that's the right one. Thank you very much.  https://www.waveshare.com/wiki/RP2350-PiZero#Overview https://minibots.wordpress.com/2025/09/09/waveshare-rp2350-pizero/ |
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| matherp Guru  Joined: 11/12/2012 Location: United KingdomPosts: 11215 |
No: they use the wrong pins for the DVI output. PicoMite uses the HSTX peripheral to generate DVI and this is fixed on pins gp12-gp19 |
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| Fede Newbie Joined: 09/03/2026 Location: SpainPosts: 23 |
Oh.  Thank you so much for the quick response. I'll try using it like a regular 2350. |
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| fred777 Regular Member  Joined: 01/07/2021 Location: United KingdomPosts: 67 |
Its a real shame about the HDMI pins, Could have been a nice board otherwise. At least PSRAM works and it seems to be stable at max cpu clock |
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Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 8768 |
There's nothing to stop you from using its HDMI output socket with some external resistors to get a VGA display. Alternatively you could use the connections as GPIO pins or use some as an SPI port to feed a LCD display. It's just a pity that they crippled it by not using the HSTX port for anything useful. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| fred777 Regular Member Joined: 01/07/2021 Location: United KingdomPosts: 67 |
Correction, mine seems to max out @320Mhz, any higher and it sporadically hangs... |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 8768 |
Erm... "Max CPU clock" is 150MHz. Any faster than that is overclocking and isn't supported on the RP2350A or B. ;) The module probably passes or exceeds every performance test for the RP2350 / Pico 2 with PSRAM. If one will go any faster it's a happy bonus. :) Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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