![]() ![]() Wire.endTransmission(false) should not be sending a "Stop". WriteState = Wire.endTransmission(false) The bus will be held indefinitely until the slave replies with an ACK. If false, the master holds the bus and does a repeated start with the next piece of data/Write. If true, the transmission ends with a "Stop" Arduino Wire.endTransmission(Stop Boolean) now has a Boolean to keep the line open. The top capture254 is the what I have discussed above, the bottom Capture256 is Arduino.Īs I understand it. So when another processor communicates with it on the I2C bus, the master has to hold the line and keep trying until an ACK is received. ![]() This means it is not listening while it is doing other work, it listens periodically. This microprocessor does not have inbuilt I2C, it uses soft I2C. I am trying to communicate with an old microprocessor via I2C (2Wire). Please don't hesitate to tell me if I am barking up the wrong tree. ![]()
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