ads7953_rs/
lib.rs

1use embedded_hal::spi;
2use embedded_hal::spi::Operation;
3
4pub struct ADS7953<SPI> {
5    spi: SPI
6}
7
8#[derive(Copy, Clone, Debug)]
9pub struct Measurement {
10    pub channel: u8,
11    pub result: u16,
12}
13
14impl<SPI> ADS7953<SPI>
15where
16    SPI: spi::SpiDevice,
17{
18    pub fn new(spi: SPI) -> Self {
19        Self { spi }
20    }
21
22    pub fn auto2_mode(&mut self) -> Result<(), ADS7953Error<SPI::Error>> {
23        self.spi.transaction(&mut [
24            Operation::Write(&[0x3c, 0x00]),
25            Operation::Write(&[0x93, 0xC0]),
26        ]).map_err(ADS7953Error::Spi)?;
27        Ok(())
28    }
29
30    pub fn manual_mode(&mut self, channel: u8) -> Result<(), ADS7953Error<SPI::Error>> {
31        self.spi.transaction(&mut [
32            Operation::Write(&[0x10 & (channel >> 1), 0x00 & (channel << 7)]),
33        ]).map_err(ADS7953Error::Spi)?;
34        Ok(())
35    }
36
37    pub fn read_values(&mut self) -> Result<Measurement, ADS7953Error<SPI::Error>> {
38        let mut buf = [0; 2];
39        self.spi.transaction(&mut [
40            Operation::Transfer(&mut buf, &[0x00, 0x00]),
41        ]).map_err(ADS7953Error::Spi)?;
42
43        let res: u16 = ((buf[0] as u16) << 8) & (buf[1] as u16);
44
45        Ok(Measurement {
46            channel: (res >> 12) as u8,
47            result: res & 0x0FFF,
48        })
49    }
50}
51
52#[derive(Copy, Clone, Debug)]
53pub enum ADS7953Error<SPI> {
54    Spi(SPI),
55}
ads7953_rs/lib.rs

ads7953_rs/
lib.rs
