grabowski
54242da04b
The repository is now only the HPCS 6500 driver: a Rust library (serial transport, every protocol command, block parsing, USBPcap captures, a simulated instrument) and the hpcs6500 CLI with the flags of the former hpcs6500.py, plus dump/capture for reverse engineering. The lamp station, lamp export, TM-30, label printer and LED calibration move to B4L/lamp-testbench. Golden tests pin the Rust output to the Python driver's: parsed values bit-exact, report text, CSV and number formatting. The Python driver is at tag python-final.
53 lines
1.5 KiB
Rust
53 lines
1.5 KiB
Rust
use std::fmt::Write;
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/// Everything that can go wrong talking to the instrument.
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#[derive(Debug, thiserror::Error)]
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pub enum Error {
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#[error("serial port: {0}")]
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Serial(#[from] serialport::Error),
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#[error("I/O: {0}")]
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Io(#[from] std::io::Error),
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/// A write command was not acknowledged with `8C <cmd>`.
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#[error("no acknowledge for command 0x{cmd:02X} (got {got})")]
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NoAck { cmd: u8, got: String },
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/// A read command answered with an unexpected header.
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#[error("bad response to command 0x{cmd:02X} (got {got})")]
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BadResponse { cmd: u8, got: String },
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/// A data block ended early.
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#[error("{what} short ({got}/{want} bytes)")]
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Short {
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what: &'static str,
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got: usize,
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want: usize,
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},
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#[error("timeout waiting for measurement data")]
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Timeout,
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/// The cancel flag (Ctrl+C) was raised during a wait.
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#[error("cancelled")]
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Cancelled,
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#[error("HPCS 6500 not found (no serial port with VID 0483 / PID 5741)")]
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NotFound,
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#[error("pcap: {0}")]
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Pcap(String),
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}
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pub type Result<T, E = Error> = std::result::Result<T, E>;
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/// `8c 13 0f` style hex for error messages, `(nothing)` when empty.
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pub(crate) fn hex(b: &[u8]) -> String {
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if b.is_empty() {
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return "nothing".into();
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}
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let mut s = String::new();
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for (i, x) in b.iter().take(24).enumerate() {
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if i > 0 {
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s.push(' ');
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}
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let _ = write!(s, "{x:02x}");
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}
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if b.len() > 24 {
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let _ = write!(s, " ... ({} bytes)", b.len());
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}
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s
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}
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