29 lines
843 B
Plaintext
29 lines
843 B
Plaintext
= Raspberry Pi Pico =
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Raspberry pi's micrcontroler, based on the RP2040
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See datasheet https://datasheets.raspberrypi.org/pico/pico-datasheet.pdf
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== Pins ==
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* VBUS is the 5V from the USB
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* VSYS is the input voltage, from 2V to 5V. There is an on board voltage
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regulator to bring it down to 3.3V
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* 3V3 is 3.3 volt output with a max draw of 300ma
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* 3V3_EN is an input that allows you to shut off the internal voltage regulator
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* RUN is the reset line
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* Pins GP28 - GP 26 have ADC's attached, with a 12 bit resolution
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== Interrupts ==
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Hardware interrupts uses standard ARM nested vectored interrupt controller.
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Interrupts have ID 0-31. The RP2040 only uses 0-26, the rest are tied to
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ground. Both cores are tied to the same interrupt lines.
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*Do not enable the same interrupt on both cores*, as this leads to race
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conditions.
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[[index]]
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