Handle slave mode I2C restarts (earlephilhower#1104)

earlephilhower · web-flow · commit aeb41f3e7062 · 2023-01-06T12:23:53.000-08:00
Fixes earlephilhower#1100
diff --git a/libraries/Wire/src/Wire.cpp b/libraries/Wire/src/Wire.cpp
@@ -182,6 +182,9 @@ void TwoWire::onIRQ() {
         if (_onReceiveCallback && _buffLen) {
             _onReceiveCallback(_buffLen);
         }
+        _buffLen = 0;
+        _buffOff = 0;
+        _slaveStartDet = false;
         _i2c->hw->clr_restart_det;
     }
     // STOP_DET

Original file line number	Diff line number	Diff line change
`@@ -182,6 +182,9 @@ void TwoWire::onIRQ() {`
`182`	`182`	`if (_onReceiveCallback && _buffLen) {`
`183`	`183`	`_onReceiveCallback(_buffLen);`
`184`	`184`	`}`
	`185`	`+ _buffLen = 0;`
	`186`	`+ _buffOff = 0;`
	`187`	`+ _slaveStartDet = false;`
`185`	`188`	`_i2c->hw->clr_restart_det;`
`186`	`189`	`}`
`187`	`190`	`// STOP_DET`