Add function to use the ALERT/RDY pin as conversion-ready pin

1 files changed, 23 insertions, 0 deletions

diff --git a/tests/tier2_i2c.rs b/tests/tier2_i2c.rs
index 7d17270..4e43e90 100644
--- a/tests/tier2_i2c.rs
+++ b/tests/tier2_i2c.rs
@@ -67,6 +67,29 @@ mod can_set_comparator_queue {
     config_test!(four, set_comparator_queue, ComparatorQueue::Four, Config::default().with_high(BitFlags::COMP_QUE1).with_low( BitFlags::COMP_QUE0));
 }
 
+#[test]
+fn can_use_alert_rdy_pin_as_rdy_does_not_disable_comparator_if_already_disabled() {
+    let transactions = [ I2cTrans::write(DEV_ADDR, vec![Register::HIGH_TH, 0b1000_0000, 0]),
+                         I2cTrans::write(DEV_ADDR, vec![Register::LOW_TH,  0,    0]), ];
+    let mut dev = new_ads1014(&transactions);
+    dev.use_alert_rdy_pin_as_ready().unwrap();
+    destroy_ads1014(dev);
+}
+
+#[test]
+fn can_use_alert_rdy_pin_as_rdy_disabled_comparator() {
+    let config = Config::default().with_low(BitFlags::COMP_QUE1).with_low(BitFlags::COMP_QUE0);
+    let config_disabled_comp = Config::default().with_high(BitFlags::COMP_QUE1).with_high(BitFlags::COMP_QUE0);
+    let transactions = [ I2cTrans::write(DEV_ADDR, vec![Register::CONFIG, config.msb(), config.lsb()]),
+                         I2cTrans::write(DEV_ADDR, vec![Register::CONFIG, config_disabled_comp.msb(), config_disabled_comp.lsb()]),
+                         I2cTrans::write(DEV_ADDR, vec![Register::HIGH_TH, 0b1000_0000, 0]),
+                         I2cTrans::write(DEV_ADDR, vec![Register::LOW_TH,  0,    0]), ];
+    let mut dev = new_ads1014(&transactions);
+    dev.set_comparator_queue(ComparatorQueue::One).unwrap();
+    dev.use_alert_rdy_pin_as_ready().unwrap();
+    destroy_ads1014(dev);
+}
+
 mod can_set_full_scale_range {
     use super::*;
     config_test!(fsr6,   set_full_scale_range, FullScaleRange::Within6_144V, Config::default().with_low( BitFlags::PGA2).with_low( BitFlags::PGA1).with_low( BitFlags::PGA0));