When no slave is connected (ether 0x47 for Power On/off command or 0x0B for commands,) then the software triggers same events as when slave has answered! So the random content of memory on TX buffer is treated as normal answer
check the i2c Job for BUS Error and do not trigger normal events in this case!
When no slave is connected (ether 0x47 for Power On/off command or 0x0B for commands,) then the software triggers same events as when slave has answered! So the random content of memory on TX buffer is treated as normal answer