Struct Response 

pub struct Response;

Implementations

impl Response

pub fn parse(data: &[u8; 9]) -> Result<ResponseType, Error>

Parse Response

Parse raw bytes from RO signal of BM1397.

The packet must have a lenght of 9 bytes.

Return

• Err(Error::InvalidPreamble) if it first 2 bytes are not [0xAA, 0x55].
• Err(Error::InvalidCrc) if the CRC5 is not valid.
• Ok(ResponseType::Reg(r)) with the RegisterResponse.
• Err(Error::UnknownRegister(u8)) with the register address if it do not match a known Register.
• Ok(ResponseType::Job(j)) with the JobResponse.

Example

use bm1397_protocol::{Error, Register, Response, ResponseType};

// Error::InvalidPreamble
let resp = Response::parse(&[0x00,0x55,0x13,0x97,0x18,0x00,0x00,0x00,0x06]);
assert!(resp.is_err());
assert_eq!(resp.unwrap_err(), Error::InvalidPreamble);

let resp = Response::parse(&[0xAA,0x00,0x13,0x97,0x18,0x00,0x00,0x00,0x06]);
assert!(resp.is_err());
assert_eq!(resp.unwrap_err(), Error::InvalidPreamble);

let resp = Response::parse(&[0x00,0x00,0x13,0x97,0x18,0x00,0x00,0x00,0x06]);
assert!(resp.is_err());
assert_eq!(resp.unwrap_err(), Error::InvalidPreamble);

// Error::InvalidCrc
let resp = Response::parse(&[0xAA,0x55,0x13,0x97,0x18,0x00,0x00,0x00,0x00]);
assert!(resp.is_err());
assert_eq!(resp.unwrap_err(), Error::InvalidCrc);

// Register::ChipAddress == 0x13971800
let resp = Response::parse(&[0xAA,0x55,0x13,0x97,0x18,0x00,0x00,0x00,0x06]);
assert!(resp.is_ok());
match resp.unwrap() {
    ResponseType::Reg(r) => {
        assert_eq!(r.value, 0x13971800);
        assert_eq!(r.chip_addr, 0);
        assert_eq!(r.register, Register::ChipAddress);
    },
    _ => panic!(),
};

// Error::UnknownRegister(0xF0)
let resp = Response::parse(&[0xAA,0x55,0x00,0x00,0x00,0x00,0x04,0xF0,0x03]);
assert!(resp.is_err());
assert_eq!(resp.unwrap_err(), Error::UnknownRegister(0xF0));

// Nonce == 0x97C328B6
let resp = Response::parse(&[0xAA,0x55,0x97,0xC3,0x28,0xB6,0x01,0x63,0x9C]);
assert!(resp.is_ok());
match resp.unwrap() {
    ResponseType::Job(j) => {
        assert_eq!(j.nonce, 0x97C328B6);
        assert_eq!(j.midstate_id, 1);
        assert_eq!(j.job_id, 0x63);
    },
    _ => panic!(),
};