Other Parts Discussed in Thread: LM48560
Tool/software:
Hi TI Experts,
I'm currently evaluating the LM48560 using its evaluation board and suspect that I may have inadvertently damaged the IC. I'm configuring the output via software mode, and the I²C signals are coming from a separate evaluation board. However, I've observed that the SDA line appears to be shorted to ground on my oscilloscope—even after isolating all other connections. I'm unable to determine the cause of this persistent short.
Additionally, I’d like to clarify the recommended power-up sequence for this board. In my setup, the pull-up voltage for the SDA line is applied before powering on the LM48560 evaluation board. Should the board be powered up before any I²C communication (SDA/SCL signals) is initiated? Is there a way to verify whether this sequence is critical or if it may have contributed to the issue?
Appreciate any guidance you can provide!
Best
Ena