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Wire: Fix writes from requestFrom #104

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Merged
merged 1 commit into from
Dec 17, 2020
Merged

Wire: Fix writes from requestFrom #104

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Wire: Fix writes from requestFrom 
The transmission buffer, once it is written, should be cleared
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@polldo
polldo committed Dec 16, 2020
commit 49fb2408feb04e4ff29c144ba27d84d079c9305a
5 changes: 4 additions & 1 deletion libraries/Wire/Wire.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -127,7 +127,10 @@ void arduino::MbedI2C::receiveThd() {
if (onRequestCb != NULL) {
onRequestCb();
}
slave->write((const char *) txBuffer, usedTxBuffer);
if (usedTxBuffer != 0) {
slave->write((const char *) txBuffer, usedTxBuffer);
usedTxBuffer = 0;
}
slave->stop();
break;
case mbed::I2CSlave::WriteGeneral:
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