Our project is composed of 18 Jetson Nano modules.
Depending on the backplane I2C Bus of all modules are connected.
One Master module , Multiple Slave modules.
I2C clock: 100 KHz
When I insert 11 daughter boards in the backplane( one master module, ten slave modules),I2C issue happened. The master module received the wrong data from the nine slave modules.
But I insert 10 daughter boards in the backplane( one master module, nine slave modules),I2C communicate normally…
I don’t know the reason. FAE engineers tell that the reason is because of the driver current limitation in I2C bus. And give us the below picture about driver current.
IOL LOW-level output current VOL=0.4V min 3mA(Stand-mode) ; min 3mA(Fast-mode); min 20mA(Fast-mode Plus)
Now I want to know whether we have methods to improve the driver current from 3mA to 6mA.
Does Jetson Nano module support it？