Hi, professionals! We need your help again.
The case is as follows:
We made 3 AM1810 developing boards in one batch by SMT, and two of them works well, but for one board no "Boot me" was printed out.
We have already checked up 1) power supply for AM1810 is normal(1.2V, 33.V,3.3V); 2)24MHz crystal oscillator is normal from oscilloscope; 3) Reset circuit is normal.
But we still cannot find the problem. Could you please help with suggestions from other aspects that we haven't noticed yet? Really appreciate a lot to you.