The board fails to boot up when I apply 15V on the charger input and switch the power switch from off to on. I am not using an internal battery, just the external power.
However, if I leave the power switch in the on position, and apply external power, it usually will boot up just fine. Throw the switch off and then on again and no joy.
I have tried this with several power sources, same result.
If I apply the +15V to the pcb trace after the switch, things boot up just fine.
Using the “ElectrosReady.bin” file for the uP.
I am thinking of either patching in a uP supersivor circuit, e.g. max809 or modifying the code to slow the entry into self test.
btw, could someone pass me a commented version of the assembly?