d266e44bc5
Instead of configuring machine.I2C0, machine.I2C1, etc. statically, allow the pins to be set using machine.I2CConfig. This will also automatically configure the correct pin mode for each pin instead of having to specify that manually.
45 строки
1,3 КиБ
Go
45 строки
1,3 КиБ
Go
package machine
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import "errors"
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var (
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ErrInvalidInputPin = errors.New("machine: invalid input pin")
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ErrInvalidOutputPin = errors.New("machine: invalid output pin")
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ErrInvalidClockPin = errors.New("machine: invalid clock pin")
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ErrInvalidDataPin = errors.New("machine: invalid data pin")
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)
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type PinConfig struct {
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Mode PinMode
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}
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// Pin is a single pin on a chip, which may be connected to other hardware
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// devices. It can either be used directly as GPIO pin or it can be used in
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// other peripherals like ADC, I2C, etc.
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type Pin int8
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// NoPin explicitly indicates "not a pin". Use this pin if you want to leave one
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// of the pins in a peripheral unconfigured (if supported by the hardware).
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const NoPin = Pin(-1)
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// High sets this GPIO pin to high, assuming it has been configured as an output
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// pin. It is hardware dependent (and often undefined) what happens if you set a
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// pin to high that is not configured as an output pin.
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func (p Pin) High() {
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p.Set(true)
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}
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// Low sets this GPIO pin to low, assuming it has been configured as an output
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// pin. It is hardware dependent (and often undefined) what happens if you set a
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// pin to low that is not configured as an output pin.
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func (p Pin) Low() {
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p.Set(false)
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}
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type PWM struct {
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Pin Pin
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}
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type ADC struct {
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Pin Pin
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}
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