Hello everyone !
I try to figure for 2 days now why my USB 8451 gave me an error 301740 : SDA or SCL line or both are in a low state or there are no pull-up resistor.
I try to change a multiplexer channel in order to obtain a temperature mesurement from a sensor. I checked my SDA and SCL lines, thye're both in high state and i have 2 pull-up resistors with a value of 10K.
The only change with my older circuit is that i use an external power supply for my electronic chip and a MUX PCA9543(texas instruments) to select the sensor of which i need the data .
Does anyone have encountered similar issues ?