Enum opentitanlib::io::gpio::DacBangEntry

pub enum DacBangEntry<'wr> {
    Write(&'wr [f32]),
    WriteOwned(Box<[f32]>),
    Delay(u32),
    Linear(u32),
}

Variants

Write(&'wr [f32])

Represents a sequence of volt values. If N pin is being driven, then samples are interleaved such that at first, the first N values are applied, one to each of the pins, at next tick the next N values are applied, and so on, with a particular delay between each tick given by the clock_tick argument to run().

WriteOwned(Box<[f32]>)

Same as Write, but this DacBangEntry owns the data.

Delay(u32)

Represents a delay of the given number of clock ticks in which the output levels are held as indicated by the last values of the preceding Write entry.

A delay of zero is invalid. A delay of one tick is equivalent to not specifying any Delay between two Write blocks, which is also equivalent to concatenating the two into a single Write block.

Linear(u32)

Represents a time span of the given number of clock ticks during which the voltage linearly transitions from the previous to the subsequent value.

A value of zero is invalid. A value of one tick is equivalent to not specifying any delay between two Write blocks. A value of two will result in a single intermediate sample halfway between the two voltages. In general, a value of N will result in N-1 intermediate samples being inserted at this point.