Update the pico-sdk submodule to ensure that all RP2350 board headers explicitly define PICO_RP2350A. #18417
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This commit updates the pico-sdk submodule from the previous version (commit 9a4113f) to the latest official Raspberry Pi pico-sdk release version 2.2.0 (commit a1438df). Key changes in pico-sdk 2.2.0 include: - SDK 2.2.0 Release - Resolve the abnormal ADC function issue of the Seeed XIAO RP2350 - Runtime improvements and bug fixes - Various stability and performance improvements The update ensures MicroPython has access to the latest hardware support and features provided by the official pico-sdk.
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… explicitly define PICO_RP2350A This commit updates the pico-sdk submodule to commit c88bd53, which provides critical fixes for RP2350 board header definitions. Key changes in this specific pico-sdk version: - Ensure all RP2350 board-headers explicitly define PICO_RP2350A - Fixes board detection and configuration for RP2350 variants - Improves compatibility with RP2350A and RP2350B chip variants MicroPython v1.26.1 on 2025-09-11; Seeed XIAO RP2350 with RP2350 Use the firmware in this interface XIAO_RP2350 Use the following test code： Using my new compiled firmware： ``` >>> import machine >>> machine.ADC(4).read_u16() 13955 ``` Observed behaviour： ``` >>> import machine >>> machine.ADC(29).read_u16() Traceback (most recent call last): File "<stdin>", line 1, in <module> ValueError: Pin doesn't have ADC capabilities >>> ``` The reason is that pico-sdk is not the latest. The ADC function modified the judgment logic after this submission, and changed the range of the ADC pin to be specified by macro(ADC_BASE_PIN and NUM_ADC_CHANNELS). See: 34e463d These two macros were not used in pico-sdk until after this commit. See: raspberrypi/pico-sdk@c88bd53 The following file is the xiao rp2350 header file in the pico-sdk used by the current version of micropython. This file does not include the changes submitted above. See: https://github.com/raspberrypi/pico-sdk/blob/9a4113fbbae65ee82d8cd6537963bc3d3b14bcca/src/boards/include/boards/seeed_xiao_rp2350.h Please adopt pico-sdk with RP2350A defined in header files
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Summary
This commit updates the pico-sdk submodule to commit c88bd53, which
provides critical fixes for RP2350 board header definitions.
Key changes in this specific pico-sdk version:
Testing
MicroPython v1.26.1 on 2025-09-11; Seeed XIAO RP2350 with RP2350
Reproduction：
Use the firmware in this interface XIAO_RP2350
Use the following test code：
Using my new compiled firmware：
Observed behaviour：
Additional Information：
The reason is that pico-sdk is not the latest.
The ADC function modified the judgment logic after this submission, and changed the range of the ADC pin to be specified by macro(ADC_BASE_PIN and NUM_ADC_CHANNELS).
See: 34e463d
These two macros were not used in pico-sdk until after this commit.
See: raspberrypi/pico-sdk@c88bd53
The following file is the xiao rp2350 header file in the pico-sdk used by the current version of micropython. This file does not include the changes submitted above.
See: https://github.com/raspberrypi/pico-sdk/blob/9a4113fbbae65ee82d8cd6537963bc3d3b14bcca/src/boards/include/boards/seeed_xiao_rp2350.h
Please adopt pico-sdk with RP2350A defined in header files
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