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GPIO23 actually controls the 'power save' function on the SMPS.

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If GPIO23 is low, the power supply is in low-power mode. But it
generates some noise. If GPIO23 is high, the power supply is less
efficient, but it generates less noise too.
This commit is contained in:
Jonathan Pallant 2021-11-16 19:15:04 +00:00
parent 1541e0dfa4
commit cc612b89fd
1 changed files with 1 additions and 1 deletions
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2
boards/pico/src/lib.rs
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@ -33,7 +33,7 @@ hal::bsp_pins!(
Gpio20 { name: gpio20 }, Gpio20 { name: gpio20 },
Gpio21 { name: gpio21 }, Gpio21 { name: gpio21 },
Gpio22 { name: gpio22 }, Gpio22 { name: gpio22 },
Gpio23 { name: bootsel }, Gpio23 { name: b_power_save },
Gpio24 { name: vbus_detect }, Gpio24 { name: vbus_detect },
Gpio25 { name: led }, Gpio25 { name: led },
Gpio26 { name: gpio26 }, Gpio26 { name: gpio26 },