kender
Advanced Member level 4
i2c buffer
Colleagues,
My I2C bus goes through a P82B96 buffer. But when the slave sends the ACK, the buffer increases the level of the signal, instead of just buffering it.
You’ll notice that the values for pull-ups on the slave side are somewhat high, and as a result, the slave device (PCA9536) can’t pull the SDA line all the way down. That certainly is a part of a problem. But the P82B96 increases this level even further, and I don’t understand why is it doing that?
Cheers,
- Nick
Colleagues,
My I2C bus goes through a P82B96 buffer. But when the slave sends the ACK, the buffer increases the level of the signal, instead of just buffering it.
You’ll notice that the values for pull-ups on the slave side are somewhat high, and as a result, the slave device (PCA9536) can’t pull the SDA line all the way down. That certainly is a part of a problem. But the P82B96 increases this level even further, and I don’t understand why is it doing that?
Cheers,
- Nick