fix(Wire): in case of slave, (re)enable interrupt when configuring clock

Because TwoWire::setClock() calls i2c_setTiming() which disable/(re)enable I2C Hardware, it is necessary to restore interrupts. Signed-off-by: Alexandre Bourdiol <alexandre.bourdiol@st.com>
stm32duino · Aug 30, 2022 · 08334ff · 08334ff
1 parent e0cf26e
commit 08334ff
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/libraries/Wire/src/Wire.cpp b/libraries/Wire/src/Wire.cpp
@@ -117,6 +117,10 @@ void TwoWire::end(void)
 void TwoWire::setClock(uint32_t frequency)
 {
   i2c_setTiming(&_i2c, frequency);
+  if (_i2c.isMaster == 0) {
+    i2c_attachSlaveTxEvent(&_i2c, onRequestService);
+    i2c_attachSlaveRxEvent(&_i2c, onReceiveService);
+  }
 }
 
 uint8_t TwoWire::requestFrom(uint8_t address, uint8_t quantity, uint32_t iaddress, uint8_t isize, uint8_t sendStop)