Arm Mbed OS support forum

No data transmission output on MAX41464 using I2C

Hello, I am using the MAX4146 transmitter IC in FSK mode as a slave with an I2C bus. I do follow the initial programming steps and return to fast wakeup mode. This IC has a FIFO that gets filled up with the data that needs to be transmitted and is emptied after transmission. I am using SDR# studio to see the RF spectrum but there is no output at the desired frequencies. When the FIFO is full, clock stretching is present on the I2C bus. The FIFO gets emptied but still no output on SDR#.

Any help is greatly appreciated.