Module itsybitsy_m0::gpio::v2

Version 2 of the GPIO module

The new API provides two different submodules, pin and dynpin, representing two different ways to handle GPIO pins. The default, pin, is a type-level API that tracks the state of each pin at compile-time. The alternative, dynpin is a type-erased, value-level API that tracks the state of each pin at run-time.

The type-level API is strongly preferred. By representing the state of each pin within the type system, the compiler can detect logic errors at compile-time. Furthermore, the type-level API has absolutely zero run-time cost.

If needed, dynpin can be used to erase the type-level differences between pins. However, by doing so, pins must now be tracked at run-time, and each pin has a non-zero memory footprint.

Modules

dynpin	Type-erased, value-level module for GPIO pins
pin	Type-level module for GPIO pins

Structs

Alternate	Type-level variant of PinMode for alternate peripheral functions
Disabled	Type-level variant of PinMode for disabled modes
DynPin	A value-level pin, parameterized by DynPinId and DynPinMode
DynPinId	Value-level struct representing pin IDs
Input	Type-level variant of PinMode for input modes
Output	Type-level variant of PinMode for output modes
Pin	A type-level GPIO pin, parameterized by PinId and PinMode types
Pins	Collection of all the individual Pins

Enums

A	Type-level variant of AlternateConfig for alternate peripheral function A
B	Type-level variant of AlternateConfig for alternate peripheral function B
C	Type-level variant of AlternateConfig for alternate peripheral function C
D	Type-level variant of AlternateConfig for alternate peripheral function D
DynAlternate	Value-level enum for alternate peripheral function configurations
DynDisabled	Value-level enum for disabled configurations
DynGroup	Value-level enum for pin groups
DynInput	Value-level enum for input configurations
DynOutput	Value-level enum for output configurations
DynPinMode	Value-level enum representing pin modes
E	Type-level variant of AlternateConfig for alternate peripheral function E
Error	GPIO error type
F	Type-level variant of AlternateConfig for alternate peripheral function F
Floating	Type-level variant of both DisabledConfig and InputConfig
G	Type-level variant of AlternateConfig for alternate peripheral function G
GroupA	Type-level variant of Group
GroupB	Type-level variant of Group
H	Type-level variant of AlternateConfig for alternate peripheral function H
PA00	Pin ID representing pin PA00
PA01	Pin ID representing pin PA01
PA02	Pin ID representing pin PA02
PA03	Pin ID representing pin PA03
PA04	Pin ID representing pin PA04
PA05	Pin ID representing pin PA05
PA06	Pin ID representing pin PA06
PA07	Pin ID representing pin PA07
PA08	Pin ID representing pin PA08
PA09	Pin ID representing pin PA09
PA10	Pin ID representing pin PA10
PA11	Pin ID representing pin PA11
PA12	Pin ID representing pin PA12
PA13	Pin ID representing pin PA13
PA14	Pin ID representing pin PA14
PA15	Pin ID representing pin PA15
PA16	Pin ID representing pin PA16
PA17	Pin ID representing pin PA17
PA18	Pin ID representing pin PA18
PA19	Pin ID representing pin PA19
PA20	Pin ID representing pin PA20
PA21	Pin ID representing pin PA21
PA22	Pin ID representing pin PA22
PA23	Pin ID representing pin PA23
PA24	Pin ID representing pin PA24
PA25	Pin ID representing pin PA25
PA27	Pin ID representing pin PA27
PA28	Pin ID representing pin PA28
PA30	Pin ID representing pin PA30
PA31	Pin ID representing pin PA31
PB02	Pin ID representing pin PB02
PB03	Pin ID representing pin PB03
PB08	Pin ID representing pin PB08
PB09	Pin ID representing pin PB09
PB10	Pin ID representing pin PB10
PB11	Pin ID representing pin PB11
PB22	Pin ID representing pin PB22
PB23	Pin ID representing pin PB23
PullDown	Type-level variant of both DisabledConfig and InputConfig
PullUp	Type-level variant of both DisabledConfig and InputConfig
PushPull	Type-level variant of OutputConfig for a push-pull configuration
Readable	Type-level variant of OutputConfig for a readable push-pull configuration

Constants

DYN_ALTERNATE_A	Value-level variant of DynPinMode for alternate peripheral function A
DYN_ALTERNATE_B	Value-level variant of DynPinMode for alternate peripheral function B
DYN_ALTERNATE_C	Value-level variant of DynPinMode for alternate peripheral function C
DYN_ALTERNATE_D	Value-level variant of DynPinMode for alternate peripheral function D
DYN_ALTERNATE_E	Value-level variant of DynPinMode for alternate peripheral function E
DYN_ALTERNATE_F	Value-level variant of DynPinMode for alternate peripheral function F
DYN_ALTERNATE_G	Value-level variant of DynPinMode for alternate peripheral function G
DYN_ALTERNATE_H	Value-level variant of DynPinMode for alternate peripheral function H
DYN_FLOATING_DISABLED	Value-level variant of DynPinMode for floating disabled mode
DYN_FLOATING_INPUT	Value-level variant of DynPinMode for floating input mode
DYN_PULL_DOWN_DISABLED	Value-level variant of DynPinMode for pull-down disabled mode
DYN_PULL_DOWN_INPUT	Value-level variant of DynPinMode for pull-down input mode
DYN_PULL_UP_DISABLED	Value-level variant of DynPinMode for pull-up disabled mode
DYN_PULL_UP_INPUT	Value-level variant of DynPinMode for pull-up input mode
DYN_PUSH_PULL_OUTPUT	Value-level variant of DynPinMode for push-pull output mode
DYN_READABLE_OUTPUT	Value-level variant of DynPinMode for readable push-pull output mode

Traits

AlternateConfig	Type-level enum for alternate peripheral function configurations
AnyPin	Meta-type representing any Pin
DisabledConfig	Type-level enum for disabled configurations
InputConfig	Type-level enum for input configurations
OptionalPin	Meta-type representing an optional Pin.
OutputConfig	Type-level enum for output configurations
PinId	Type-level enum for pin IDs
PinMode	Type-level enum representing pin modes
SomePin	Meta-type representing a valid Pin.

Type Definitions

AlternateA	Type-level variant of PinMode for alternate peripheral function A
AlternateB	Type-level variant of PinMode for alternate peripheral function B
AlternateC	Type-level variant of PinMode for alternate peripheral function C
AlternateD	Type-level variant of PinMode for alternate peripheral function D
AlternateE	Type-level variant of PinMode for alternate peripheral function E
AlternateF	Type-level variant of PinMode for alternate peripheral function F
AlternateG	Type-level variant of PinMode for alternate peripheral function G
AlternateH	Type-level variant of PinMode for alternate peripheral function H
ConcretePin	Type alias to recover the corresponding concrete Pin type from a given implementation of AnyPin
FloatingDisabled	Type-level variant of PinMode for floating disabled mode
FloatingInput	Type-level variant of PinMode for floating input mode
PullDownDisabled	Type-level variant of PinMode for pull-down disabled mode
PullDownInput	Type-level variant of PinMode for pull-down input mode
PullUpDisabled	Type-level variant of PinMode for pull-up disabled mode
PullUpInput	Type-level variant of PinMode for pull-up input mode
PushPullOutput	Type-level variant of PinMode for push-pull output mode
ReadableOutput	Type-level variant of PinMode for readable push-pull output mode
Reset	Type alias for the PinMode at reset