Struct CommandHeader 

pub struct CommandHeader {
    pub flag: CommandFlag,
    pub reserved: u8,
}

Command packet header structure

Contains the command flag indicating whether the command has a data phase, and a reserved byte for future use. This structure is part of every McuBoot command packet sent to the target device.

Fields

flag: CommandFlag

Flag indicating command characteristics (e.g., has data phase)

reserved: u8

Reserved byte for future protocol extensions

Implementations

impl CommandHeader

pub fn construct_frame(&self, params: &[u32], command_code: u8) -> Vec<u8>

Constructs a complete command frame ready for transmission

This method builds a McuBoot command packet by combining the command code, flags, parameter count, and parameters into a properly formatted frame. The frame includes the protocol header and follows the McuBoot packet format.

Arguments

• params - Slice of u32 parameters for the command
• command_code - The command identifier (from CommandTag enum)

Returns

A Vec<u8> containing the complete command frame ready for transmission

Frame Format

The constructed frame follows this structure:

• Protocol header (added by construct_header)
• Command code (1 byte)
• Command flag (1 byte)
• Reserved byte (1 byte)
• Parameter count (1 byte)
• Parameters (4 bytes each, little-endian)

Trait Implementations

impl Clone for CommandHeader

fn clone(&self) -> CommandHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CommandHeader

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.