Hi, I've been trying for a few days to communicate with a device by SMBus.
The device is an Microchip USB2422 and for test I use board DISC1 with STM32F429 on i2c3 port.
The problem is that when I try to communicate with it to oscilloscope I see only a single signal with 10ms duration on both SCL and SDA.
Then I tried with another device (INA219) and that works on I2C and SMBus.
With I2C I can work with it without any problem, but with SMBus (with same connection) I've the same problem of USB2422.
Is there something I'm missing?
Thanks.
