Category: Hardware
Product Number: MAX7311
Hello, I've a custom board with 3 MAX7311 IC's on it.
The connections to pins AD2, AD1, AD0 are:
IC1: GND, GND, GND
IC2: +3V3, GND, GND
IC3: GND, +3V3, GND
Therefore, as the datasheet states the corresponding addresses should be:
IC1: 0x40
IC2: 0x42
IC3: 0x44
The problem is none of the IC's are responding to these addresses.
The microcontroller is generating the I2C signals correctly but the ACK bit doesn't get low (so the MAX7311 ICs aren't responding according to the datasheet)
This is a picture of I2C bus: SCK (yellow) and SDA (blue) trying to communicate to 0x40.
My question is: why aren't they responding to their addresses?
Thanks!
