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Include newer RP2350 steppings in Readme warning #40

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dihm merged 3 commits into from
Dec 12, 2025
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Include newer RP2350 steppings in Readme warning #40

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Include newer RP2350 steppings.md
ErichZimmer Dec 2, 2025
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Grammatical fix.md
ErichZimmer Dec 2, 2025
c9970c1
Grammatical fix (again)
ErichZimmer Dec 2, 2025
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4 changes: 2 additions & 2 deletions readme.md
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Expand Up @@ -7,9 +7,9 @@ The firmware is compatible with both the Pico 2 board (based on the RP2350 chip)
The [original Pico](https://www.raspberrypi.com/products/raspberry-pi-pico/) (RP2040 chip) supports half the number of instructions and has a slower maximum clock speed.

> [!CAUTION]
> The RP2350 currently has a hardware design bug that impacts the operation of the internal pull-down resistor on GPIO pins configured as inputs.
> The RP2350 A2 stepping currently has a hardware design bug that impacts the operation of the internal pull-down resistor on GPIO pins configured as inputs.
> This may impact the operation of the PrawnBlaster trigger inputs when using the RP2350, depending on the specs of your trigger. For full details, see errata E9 in the [RP2350 datasheet](https://datasheets.raspberrypi.com/rp2350/rp2350-datasheet.pdf).
> The issue can usually be fixed by providing a suitably sized external pull-down resistor on the relevant input pins.
> The issue can usually be fixed by providing a suitably sized external pull-down resistor on the relevant input pins or avoiding boards with A2 steppings in favor of boards with A3 and A4 steppings which do not have this problem.
> RP2040 based boards do not suffer from this issue (but have reduced timing and storage compared to the RP2350).

## What is a pseudoclock device?
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