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ds323x-rs
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DS3234: Add function to enable/disable temperature conversions on battery

pull/4/head
Diego Barrios Romero 2018-10-31 11:07:38 +01:00
parent 46aff07f81
commit 10ac7e4b7c
5 changed files with 63 additions and 35 deletions
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3
README.md
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@ -19,8 +19,9 @@ This driver allows you to:
- Select the function of the INT/SQW output pin. See `use_int_sqw_output_as_interrupt`.
- Enable and disable the square-wave generation. See `enable_square_wave`.
- Select the square-wave frequency. See `set_square_wave_frequency`.
- Enable and disable the 32kHz output when battery powered. See `enable_32khz_output_on_battery`.
- Enable and disable the 32kHz output when battery-powered. See `enable_32khz_output_on_battery`.
- Set the temperature conversion rate. See `set_temperature_conversion_rate`.
- Enable and disable the temperature conversions when battery-powered. See `enable_temperature_conversions_on_battery`.
## The devices

18
src/ds3234.rs
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@ -3,8 +3,8 @@
extern crate embedded_hal as hal;
use hal::blocking;
use core::marker::PhantomData;
use super::{ Ds323x, TempConvRate, BitFlags, Error, ic, CONTROL_POR_VALUE };
use interface::SpiInterface;
use super::{ Ds323x, TempConvRate, Register, BitFlags, Error, ic, CONTROL_POR_VALUE };
use interface::{ SpiInterface, WriteData };
impl<SPI, CS, E> Ds323x<SpiInterface<SPI, CS>, ic::DS3234>
where
@ -69,4 +69,18 @@ where
}
self.write_status_without_clearing_alarm(status)
}
/// Enable the temperature conversions when battery-powered. (enabled per default)
///
/// Note: This is only available for DS3234 devices.
pub fn enable_temperature_conversions_on_battery(&mut self) -> Result<(), Error<E>> {
self.iface.write_register(Register::TEMP_CONV, 0)
}
/// Disable the temperature conversions when battery-powered.
///
/// Note: This is only available for DS3234 devices.
pub fn disable_temperature_conversions_on_battery(&mut self) -> Result<(), Error<E>> {
self.iface.write_register(Register::TEMP_CONV, BitFlags::TEMP_CONV_BAT)
}
}

38
src/lib.rs
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@ -19,6 +19,7 @@
//! - Select the square-wave frequency. See [`set_square_wave_frequency`].
//! - Enable and disable the 32kHz output when battery powered. See [`enable_32khz_output_on_battery`].
//! - Set the temperature conversion rate. See [`set_temperature_conversion_rate`].
//! - Enable and disable the temperature conversions when battery-powered. See [`enable_temperature_conversions_on_battery`].
//!
//! [`get_datetime`]: struct.Ds323x.html#method.get_datetime
//! [`get_year`]: struct.Ds323x.html#method.get_year
@ -35,6 +36,7 @@
//! [`set_square_wave_frequency`]: Struct.Ds323x.html#method.set_square_wave_frequency
//! [`enable_32khz_output_on_battery`]: Struct.Ds323x.html#method.enable_32khz_output_on_battery
//! [`set_temperature_conversion_rate`]: Struct.Ds323x.html#method.set_temperature_conversion_rate
//! [`enable_temperature_conversions_on_battery`]: Struct.Ds323x.html#method.enable_temperature_conversions_on_battery
//!
//! ## The devices
//!
@ -438,28 +440,30 @@ impl Register {
const STATUS : u8 = 0x0F;
const AGING_OFFSET : u8 = 0x10;
const TEMP_MSB : u8 = 0x11;
const TEMP_CONV : u8 = 0x13;
}
struct BitFlags;
impl BitFlags {
const H24_H12 : u8 = 0b0100_0000;
const AM_PM : u8 = 0b0010_0000;
const CENTURY : u8 = 0b1000_0000;
const EOSC : u8 = 0b1000_0000;
const BBSQW : u8 = 0b0100_0000;
const TEMP_CONV : u8 = 0b0010_0000;
const RS2 : u8 = 0b0001_0000;
const RS1 : u8 = 0b0000_1000;
const INTCN : u8 = 0b0000_0100;
const OSC_STOP : u8 = 0b1000_0000;
const BB32KHZ : u8 = 0b0100_0000;
const CRATE1 : u8 = 0b0010_0000;
const CRATE0 : u8 = 0b0001_0000;
const EN32KHZ : u8 = 0b0000_1000;
const BUSY : u8 = 0b0000_0100;
const ALARM2F : u8 = 0b0000_0010;
const ALARM1F : u8 = 0b0000_0001;
const H24_H12 : u8 = 0b0100_0000;
const AM_PM : u8 = 0b0010_0000;
const CENTURY : u8 = 0b1000_0000;
const EOSC : u8 = 0b1000_0000;
const BBSQW : u8 = 0b0100_0000;
const TEMP_CONV : u8 = 0b0010_0000;
const RS2 : u8 = 0b0001_0000;
const RS1 : u8 = 0b0000_1000;
const INTCN : u8 = 0b0000_0100;
const OSC_STOP : u8 = 0b1000_0000;
const BB32KHZ : u8 = 0b0100_0000;
const CRATE1 : u8 = 0b0010_0000;
const CRATE0 : u8 = 0b0001_0000;
const EN32KHZ : u8 = 0b0000_1000;
const BUSY : u8 = 0b0000_0100;
const ALARM2F : u8 = 0b0000_0010;
const ALARM1F : u8 = 0b0000_0001;
const TEMP_CONV_BAT : u8 = 0b0000_0001;
}
const DEVICE_ADDRESS : u8 = 0b110_1000;

30
tests/common/mod.rs
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@ -26,26 +26,28 @@ impl Register {
pub const STATUS : u8 = 0x0F;
pub const AGING_OFFSET : u8 = 0x10;
pub const TEMP_MSB : u8 = 0x11;
pub const TEMP_CONV : u8 = 0x13;
}
pub struct BitFlags;
#[allow(unused)]
impl BitFlags {
pub const EOSC : u8 = 0b1000_0000;
pub const BBSQW : u8 = 0b0100_0000;
pub const TEMP_CONV : u8 = 0b0010_0000;
pub const RS2 : u8 = 0b0001_0000;
pub const RS1 : u8 = 0b0000_1000;
pub const INTCN : u8 = 0b0000_0100;
pub const OSC_STOP : u8 = 0b1000_0000;
pub const BB32KHZ : u8 = 0b0100_0000;
pub const CRATE1 : u8 = 0b0010_0000;
pub const CRATE0 : u8 = 0b0001_0000;
pub const EN32KHZ : u8 = 0b0000_1000;
pub const BUSY : u8 = 0b0000_0100;
pub const ALARM2F : u8 = 0b0000_0010;
pub const ALARM1F : u8 = 0b0000_0001;
pub const EOSC : u8 = 0b1000_0000;
pub const BBSQW : u8 = 0b0100_0000;
pub const TEMP_CONV : u8 = 0b0010_0000;
pub const RS2 : u8 = 0b0001_0000;
pub const RS1 : u8 = 0b0000_1000;
pub const INTCN : u8 = 0b0000_0100;
pub const OSC_STOP : u8 = 0b1000_0000;
pub const BB32KHZ : u8 = 0b0100_0000;
pub const CRATE1 : u8 = 0b0010_0000;
pub const CRATE0 : u8 = 0b0001_0000;
pub const EN32KHZ : u8 = 0b0000_1000;
pub const BUSY : u8 = 0b0000_0100;
pub const ALARM2F : u8 = 0b0000_0010;
pub const ALARM1F : u8 = 0b0000_0001;
pub const TEMP_CONV_BAT : u8 = 0b0000_0001;
}
pub struct DummyOutputPin;

9
tests/ds3234.rs
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@ -1,14 +1,21 @@
#[deny(warnings)]
extern crate embedded_hal_mock as hal;
use hal::spi::Transaction as SpiTrans;
extern crate ds323x;
#[allow(unused)]
mod common;
use common::{ new_ds3234, destroy_ds3234 };
use common::{ new_ds3234, destroy_ds3234, Register, BitFlags };
#[test]
fn can_create_and_destroy_ds3234() {
let dev = new_ds3234(&[]);
destroy_ds3234(dev);
}
call_test!(can_en_temp_conv_bat, enable_temperature_conversions_on_battery, new_ds3234, destroy_ds3234,
[ SpiTrans::write(vec![Register::TEMP_CONV + 0x80, 0]) ]);
call_test!(can_dis_temp_conv_bat, disable_temperature_conversions_on_battery, new_ds3234, destroy_ds3234,
[ SpiTrans::write(vec![Register::TEMP_CONV + 0x80, BitFlags::TEMP_CONV_BAT]) ]);