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authorDiego Barrios Romero <eldruin@gmail.com>2018-11-11 08:25:45 +0100
committerDiego Barrios Romero <eldruin@gmail.com>2018-11-11 08:25:45 +0100
commite571469bbb1d91744819a4744ed6a8c7975e7467 (patch)
tree0f6d9deee2286925d23612b3286f4616bd52a2ed /tests
parentd6ec443c2ed0f609cd9b66df4239f22ab87468a6 (diff)
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Trigger new measurement if reading a different channel
Diffstat (limited to 'tests')
-rw-r--r--tests/mux_i2c.rs37
1 files changed, 28 insertions, 9 deletions
diff --git a/tests/mux_i2c.rs b/tests/mux_i2c.rs
index 48fc325..ca10673 100644
--- a/tests/mux_i2c.rs
+++ b/tests/mux_i2c.rs
@@ -13,10 +13,11 @@ use common::{ new_ads1015 as new, destroy_ads1015 as destroy,
macro_rules! mux_test {
- ($name:ident, $CS:ident, $config_bits:expr) => {
+ ($name:ident, $CS:ident, $config_bits:expr, $other_CS:ident, $other_config_bits:expr) => {
mod $name {
use embedded_hal::adc::OneShot;
use super::*;
+
#[test]
fn can_read() {
let default_config = Config::default();
@@ -30,15 +31,33 @@ macro_rules! mux_test {
assert_eq!(-2048, measurement);
destroy(dev);
}
+
+ #[test]
+ fn read_then_read_different_triggers_new_measurement() {
+ let default_config = Config::default();
+ let config = Config::default().with_high(BF::OS).with_high($config_bits);
+ let other_config = Config::default().with_high($other_config_bits);
+ let transactions = [ I2cTrans::write_read(DEV_ADDR, vec![Register::CONFIG], vec![default_config.msb(), default_config.lsb()]),
+ I2cTrans::write(DEV_ADDR, vec![Register::CONFIG, config.msb(), config.lsb()]),
+ I2cTrans::write_read(DEV_ADDR, vec![Register::CONFIG], vec![config.msb(), config.lsb()]),
+ I2cTrans::write(DEV_ADDR, vec![Register::CONFIG, other_config.msb(), other_config.lsb()]),
+ I2cTrans::write_read(DEV_ADDR, vec![Register::CONFIG], vec![other_config.msb(), other_config.lsb()]),
+ I2cTrans::write_read(DEV_ADDR, vec![Register::CONVERSION], vec![0x80, 0x00] ) ];
+ let mut dev = new(&transactions);
+ assert_would_block!(dev.read(&mut channel::$CS));
+ let measurement = block!(dev.read(&mut channel::$other_CS)).unwrap();
+ assert_eq!(-2048, measurement);
+ destroy(dev);
+ }
}
};
}
-mux_test!(diffa0a1, DifferentialA0A1, 0);
-mux_test!(diffa0a3, DifferentialA0A3, BF::MUX0);
-mux_test!(diffa1a3, DifferentialA1A3, BF::MUX1);
-mux_test!(diffa2a3, DifferentialA2A3, BF::MUX1 | BF::MUX0);
-mux_test!(singlea0, SingleA0, BF::MUX2);
-mux_test!(singlea1, SingleA1, BF::MUX2 | BF::MUX0);
-mux_test!(singlea2, SingleA2, BF::MUX2 | BF::MUX1);
-mux_test!(singlea3, SingleA3, BF::MUX2 | BF::MUX1 | BF::MUX0);
+mux_test!(diffa0a1, DifferentialA0A1, 0, SingleA0, BF::MUX2);
+mux_test!(diffa0a3, DifferentialA0A3, BF::MUX0, SingleA0, BF::MUX2);
+mux_test!(diffa1a3, DifferentialA1A3, BF::MUX1, SingleA0, BF::MUX2);
+mux_test!(diffa2a3, DifferentialA2A3, BF::MUX1 | BF::MUX0, SingleA0, BF::MUX2);
+mux_test!(singlea0, SingleA0, BF::MUX2, DifferentialA0A1, 0);
+mux_test!(singlea1, SingleA1, BF::MUX2 | BF::MUX0, SingleA0, BF::MUX2);
+mux_test!(singlea2, SingleA2, BF::MUX2 | BF::MUX1, SingleA0, BF::MUX2);
+mux_test!(singlea3, SingleA3, BF::MUX2 | BF::MUX1 | BF::MUX0, SingleA0, BF::MUX2);