robin/pms700x
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Robin Appelman 2020-08-16 06:07:08 +02:00
commit 60df0a3e48
2 changed files with 7 additions and 14 deletions
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3
Cargo.toml
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@ -3,6 +3,9 @@ name = "pms700x"
version = "0.1.0" version = "0.1.0"
authors = ["Robin Appelman <robin@icewind.nl>"] authors = ["Robin Appelman <robin@icewind.nl>"]
edition = "2018" edition = "2018"
exclude = ["*.pdf"]
license = "MIT OR Apache-2.0"
description = "Read"
[dependencies] [dependencies]
embedded-hal = "0.2" embedded-hal = "0.2"

18
src/lib.rs
View file

@ -1,5 +1,7 @@
#![no_std]
use core::marker::PhantomData;
use embedded_hal::serial::{Read, Write}; use embedded_hal::serial::{Read, Write};
use std::marker::PhantomData;
mod private { mod private {
pub trait Sealed {} pub trait Sealed {}
@ -199,7 +201,6 @@ impl SensorReader {
let byte = serial.read()?; let byte = serial.read()?;
let offset = self.byte_offset; let offset = self.byte_offset;
self.byte_offset += 1; self.byte_offset += 1;
println!("read {}: {:x}", offset, byte);
self.data[offset as usize] = byte; self.data[offset as usize] = byte;
match (offset, byte) { match (offset, byte) {
(0, START_HEADER_1) => Err(nb::Error::WouldBlock), (0, START_HEADER_1) => Err(nb::Error::WouldBlock),
@ -225,9 +226,6 @@ impl SensorReader {
(offset, _) => { (offset, _) => {
if offset >= self.length + 3 { if offset >= self.length + 3 {
self.byte_offset = 0; self.byte_offset = 0;
if !self.validate_data() {
eprintln!("invalid checksum")
}
Ok(()) Ok(())
} else { } else {
Err(nb::Error::WouldBlock) Err(nb::Error::WouldBlock)
@ -236,6 +234,7 @@ impl SensorReader {
} }
} }
#[allow(dead_code)]
fn validate_data(&self) -> bool { fn validate_data(&self) -> bool {
let mut sum = 0; let mut sum = 0;
for byte in self.data.iter().take(self.length as usize + 2) { for byte in self.data.iter().take(self.length as usize + 2) {
@ -306,7 +305,6 @@ impl CommandWriter {
6 => self.verify_low, 6 => self.verify_low,
_ => unreachable!(), _ => unreachable!(),
}; };
println!("write {}: {:x}", self.state, write_byte);
serial.write(write_byte)?; serial.write(write_byte)?;
self.state += 1; self.state += 1;
@ -319,11 +317,3 @@ impl CommandWriter {
} }
} }
} }
#[cfg(test)]
mod tests {
#[test]
fn it_works() {
assert_eq!(2 + 2, 4);
}
}