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    issue using MCP3423 or MCP 3221 ADC with i2c protocol - does not convert signal

    Hello, i am willing to get digital value of analogic input, using both MCP3423 and MCP3221 converters. To do so, i am using the I2C protocol. When addressing the componants, i can see that they are both detected. Neverthless, i cannot get any conversion done and the data read back stays at 0 ...