Struct jtagdap::jtag::Sequences

pub struct Sequences<'a> { /* private fields */ }

Represents a series of JTAG sequences to be sent to a DAP. The maximum number of sequences is limited by the DAP packet size, or at most 255.

Implementations

impl<'a> Sequences<'a>

pub fn with_dap(dap: &'a DAP) -> Self

Create a new Sequences object which can be sent to the provided DAP.

pub fn add_sequence(
    &mut self,
    len: usize,
    tms: bool,
    tdi: Option<&[bool]>,
    capture: bool
) -> Result<()>

Add a new sequence to this set of sequences.

len: number of clock cycles, from 1 to 64. tms: value to set TMS during this sequence. tdi: optional data to clock out TDI, bits in transmission order, set to all-1 if None. capture: if true, capture TDO state during this sequence.

pub fn add_sequences(
    &mut self,
    len: usize,
    tms: bool,
    tdi: Option<&[bool]>,
    capture: bool
) -> Result<()>

Add multiple sequences as required to reach the desired total bit length.

len: number of clock cycles. tms: value to set TMS during these sequence. tdi: optional data to clock out TDI, bits in transmission order, set to all-1 if None. capture: if true, capture TDO state during this sequence.

pub fn mode(self, tms: &[bool]) -> Result<Self>

Shift out tms bits.

Internally each run of identical bits is collapsed into a single request.

pub fn write(self, tdi: &[bool], exit: bool) -> Result<Self>

Write bits to TDI without capturing TDO state.

If exit is true, the first bits have TMS=0 and the final bit has TMS=1, otherwise all bits have TMS=0.

pub fn read(self, n: usize, exit: bool) -> Result<Self>

Read n bits from TDO, writing all 1 bits to TDI.

If exit is true, the first bits have TMS=0 and the final bit has TMS=1, otherwise all bits have TMS=0.

pub fn exchange(self, tdi: &[bool], exit: bool) -> Result<Self>

Write bits to TDI and capture output bits from TDO.

If exit is true, the first bits have TMS=0 and the final bit has TMS=1, otherwise all bits have TMS=0.

pub fn to_bytes(&self) -> Vec<Vec<u8>>

Return the byte representation of each DAP command to be sent.

pub fn run(self) -> Result<Vec<bool>>

Run these sequences, returning all captured TDO bits.

Trait Implementations

impl<'a> Clone for Sequences<'a>

fn clone(&self) -> Sequences<'a>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.