Tool/software:
We have been using the ISO1500 chip for a long time now in our products and are just beginning to experience problems with it. It looks like the receiving part of some of the chips have stopped working. When we put Slave devices on the same bus as the master with the defective chip it looks like the master is deforming the signal from the slave device. When we use another device with the same slave device we can see that the signal levels return to normal. I can provide screenshots if necesarry, but it is quite clear on the scope that some of the ISO1500 chips just stop receiving. I am a 100% sure that we are controlling the ISO1500 the way we should.