I cross-checked my connections with the 12C connection diagram in the datasheet (page 97, Section 5.2). It looks like I have made a few mistakes which I am going to highlight below: 1. Pin 15 and 16, I have left open whereas the datasheet 12C connection diagram has them connected to the ground. (Note: in another version of my prototype, I had left these pins unconnected and it had worked. Is it necessary to connect these pins to the ground?) 2. Pin 3, I have not connected to Vdd but in the datasheet, it is connected to Vdd. (Note: I feel this might be the problem because the only difference (as far as the connections to the BNO0555 are concerned)between my previous prototype (which worked) and the current prototype connections is this.) 3. Pin 9 should be connected to a 100nF capacitor as per the datasheet connections, I have used 1 micro Farad instead. 4. Between Pins 28 and 25, capacitors 120nF and 6.8 nF are connected in parallel as per the datasheet. I have used only 120nF for my current prototype. Could you kindly let me know which of the above mistakes I should have absolutely avoided? Any further suggestions or insights that will help me would also be great. Additionally, the temperature used during soldering was 240 degrees. I hope this is fine. Thank you for the support.
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